ASE Technology Holding Co., Ltd. and Subsidiaries Consolidated Financial Statements for the Nine months Ended September 30, 2025 and 2024, and Independent Auditors' Review Report INDEPENDENT AUDITORS REVIEW REPORT


The Board of Directors and Shareholders ASE Technology Holding Co., Ltd.

Introduction

We have reviewed the accompanying consolidated balance sheets of ASE Technology Holding Co., Ltd. (the













September 30, 2025 and 2024, the related consolidated statements of comprehensive income for the three months ended September 30, 2025 and 2024 and for the nine months ended September 30, 2025 and 2024, the consolidated statements of changes in equity and cash flows for the nine months then ended, and the related notes to the consolidated financial statements,



statements in accordance with the Regulations Governing the Preparation of Financial Reports by Securities Issuers and International Accounting Standard No.

endorsed and issued into effect by the Financial Supervisory Commission of the Republic of China. Our responsibility is to express a conclusion on the consolidated financial statements based on our reviews.

Scope of Review

We conducted our reviews in accordance with the Standards on Review Engagements of the Republic of China



of consolidated financial statements consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. A review is substantially less in scope than an audit and consequently does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion.

Conclusion

Based on our reviews, nothing has come to our attention that caused us to believe that the accompanying consolidated financial statements do not present fairly, in all material respects, the consolidated financial position of the Group as of September 30, 2025 and 2024, its consolidated financial performance for the three months ended September 30, 2025 and 2024, and its consolidated financial performance and its consolidated cash flows for the nine months ended September 30, 2025 and 2024 in accordance with the Regulations Governing the Preparation of Financial Reports by Securities Issuers and International Accounting Standard No.



the Republic of China.

-Ning Hsu and Lee-Yuan Kuo.

Deloitte & Touche Taipei, Taiwan Republic of China

November 10, 2025

Notice to Readers

The accompanying consolidated financial statements are intended only to present the consolidated financial position, financial performance and cash flows in accordance with accounting principles and practices generally accepted in the Republic of China and not those of any other jurisdictions. The standards, procedures and practices to review such consolidated financial statements are those generally applied in the Republic of China.



For the convenience of readers, the independent auditors

financial statements have been translated into English from the original Chinese version prepared and used in the Republic of China. If there is any conflict between the English version and the original Chinese version or any difference in the interpretation of the two versions, the Chinese-


report and consolidated financial statements shall prevail.

September 30, 2025 December 31, 2024 September 30, 2024 (Retrospectively Adjusted) ASSETS

CURRENT ASSETS

NT$ % NT$ % NT$ %

Cash and cash equivalents (Note 6)

$ 75,142,344

9

$ 76,492,824

10

$ 71,711,128

10

Financial assets at fair value through profit or loss

- current (Note 7)

6,644,453

1

8,390,606

1

5,541,797

1

Contract assets - current (Note 39)

7,043,593

1

5,640,317

1

5,353,218

1

Trade receivables, net (Note 10)

125,663,034

15

113,419,820

15

114,060,770

16

Other receivables

3,818,982

-

2,895,495

-

5,076,814

1

Current tax assets

945,778

-

731,828

-

997,184

-

Inventories (Note 11)

62,627,642

7

57,313,938

8

65,085,418

9

Inventories related to real estate business (Notes

12 and 35)

3,554,234

-

3,866,994

1

3,905,720

-

Disposal groups held for sale

-

-

-

-

19,621

-

Other financial assets - current (Notes 13 and 35)

1,625,856

-

985,925

-

1,101,517

-

Other current assets

7,013,949

1

5,547,339

1

5,952,348

1

Total current assets

294,079,865

34

275,285,086

37

278,805,535

39

NON-CURRENT ASSETS

Financial assets at fair value through profit or

loss - non-current (Note 7)

2,337,756

-

2,441,436

-

2,501,354

-

Financial assets at fair value through other

comprehensive income - non-current (Note 8)

13,408,470

2

13,959,493

2

13,607,212

2

Investments accounted for using the equity

method (Note 14)

21,732,292

3

20,716,883

3

21,445,444

3

Property, plant and equipment (Notes 15, 25, 35

and 36)

397,194,822

47

312,531,471

42

283,886,147

40

Right-of-use assets (Note 16)

12,725,221

2

11,851,087

2

11,501,711

2

Investment properties (Notes 17, 25 and 35)

18,204,719

2

20,055,044

3

20,125,424

3

Goodwill (Note 18)

51,763,136

6

51,869,537

7

51,918,794

7

Other intangible assets (Notes 19 and 25)

13,675,701

2

15,692,350

2

15,719,731

2

Deferred tax assets

7,119,150

1

7,175,371

1

6,551,710

1

Other financial assets - non-current (Notes 13

and 35)

4,199,189

-

4,691,997

1

4,824,698

1

Other non-current assets

6,203,615

1

4,428,052

-

3,838,317

-

Total non-current assets

548,564,071

66

465,412,721

63

435,920,542

61

TOTAL

$ 842,643,936

100

$ 740,697,807

100

$ 714,726,077

100

(Continued)

September 30, 2025

December 31, 2024

September 30, 2024 (Retrospectively Adjusted)

LIABILITIES AND EQUITY

CURRENT LIABILITIES

NT$ % NT$ % NT$ %

Short-term borrowings (Notes 20 and 35)

$ 35,067,968

4

$ 34,988,758

5

$ 39,179,611

5

Short-term bills payable (Note 20)

14,909,056

2

-

-

4,497,786

1

Financial liabilities at fair value through profit or

loss - current (Note 7)

3,164,088

-

324,278

-

689,603

-

Financial liabilities for hedging - current (Notes 20

and 33)

9,999,155

1

12,456,104

2

13,049,002

2

Trade payables

90,441,405

11

78,221,100

11

82,594,744

12

Other payables (Note 22)

74,564,798

9

63,179,235

9

49,918,890

7

Current tax liabilities

5,081,774

1

5,404,308

1

3,446,459

-

Lease liabilities - current (Note 16)

924,997

-

986,489

-

1,151,892

-

Current portion of bonds payable (Note 21)

3,499,546

-

14,997,976

2

18,099,120

3

Current portion of long-term borrowings (Notes

20 and 35)

4,337,921

1

3,884,906

1

5,431,964

1

Other current liabilities

17,562,339

2

16,496,364

2

17,490,787

2

Total current liabilities

259,553,047

31

230,939,518

33

235,549,858

33

NON-CURRENT LIABILITIES

Financial liabilities at fair value through profit or

loss - non-current (Note 7)

547,278

-

508,591

-

522,379

-

Bonds payable (Note 21)

17,370,327

2

17,978,188

2

17,073,106

2

Long-term borrowings (Notes 20 and 35)

201,576,827

24

121,750,192

16

108,002,844

15

Non-current tax liabilities

2,884,252

-

-

-

-

-

Deferred tax liabilities

4,232,519

1

6,456,358

1

6,310,279

1

Lease liabilities - non-current (Note 16)

7,996,028

1

6,825,534

1

6,725,226

1

Net defined benefit liabilities (Note 23)

3,107,725

-

3,396,161

-

3,849,935

-

Other non-current liabilities

5,823,515

1

7,056,670

1

5,582,332

1

Total non-current liabilities

243,538,471

29

163,971,694

21

148,066,101

20

Total liabilities

503,091,518

60

394,911,212

54

383,615,959

53

EQUITY ATTRIBUTABLE TO OWNERS OF THE COMPANY (Note 24)

Share capital

Ordinary shares

44,221,752

5

44,120,643

6

44,066,781

6

Shares subscribed in advance

145,068

-

31,862

-

54,407

-

Total share capital

44,366,820

5

44,152,505

6

44,121,188

6

Capital surplus Retained earnings

152,115,271

18

148,872,716

20

148,239,064

21

Legal reserve

25,076,564

3

21,817,390

3

21,817,390

3

Special reserve

2,791,960

-

2,791,960

-

2,791,960

-

Unappropriated earnings

98,586,982

12

99,337,337

13

89,851,742

13

Total retained earnings

126,455,506

15

123,946,687

16

114,461,092

16

Other equity

(3,935,868 )

(1 )

8,510,211

1

4,594,137

1

Treasury shares

(1,959,107 )

-

(1,959,107 )

-

(1,959,107 )

-

Equity attributable to owners of

the Company

317,042,622

37

323,523,012

43

309,456,374

44

NON-CONTROLLING INTERESTS (Note 24)

22,509,796

3

22,263,583

3

21,653,744

3

Total equity

339,552,418

40

345,786,595

46

331,110,118

47

TOTAL

$ 842,643,936

100

$ 740,697,807

100

$ 714,726,077

100

The accompanying notes are an integral part of the consolidated financial statements.

(Concluded)

For the Three Months Ended September 30 For the Nine Months Ended September 30

2025

2024

(Retrospectively Adjusted)

2025

2024

(Retrospectively Adjusted)

NT$

%

NT$

%

NT$

%

NT$

%

OPERATING REVENUE (Note 39)

$ 168,568,888

100

$ 160,105,106

100

$ 467,472,473

100

$ 433,146,024

100

OPERATING COSTS (Notes 11 and 25)

139,692,146

83

133,679,393

84

388,015,475

83

362,844,911

84

GROSS PROFIT

28,876,742

17

26,425,713

16

79,456,998

17

70,301,113

16

OPERATING EXPENSES (Note 25)

Selling and marketing expenses

1,802,972

1

1,935,735

1

5,416,080

1

5,625,467

1

General and administrative expenses

5,564,754

3

5,580,738

4

17,084,510

4

15,565,560

4

Research and development expenses

8,308,319

5

7,439,208

5

23,891,328

5

21,154,242

5

Total operating expenses

15,676,045

9

14,955,681

10

46,391,918

10

42,345,269

10

PROFIT FROM OPERATIONS

13,200,697

8

11,470,032

6

33,065,080

7

27,955,844

6

NON-OPERATING INCOME AND EXPENSES

Other income (Note 25)

772,992

-

892,169

1

2,573,131

1

2,920,659

1

Other gains and losses (Note 25)

1,614,558

1

1,198,354

1

2,162,676

-

3,352,220

1

Finance costs (Note 25)

(1,905,954 )

(1 )

(1,720,393 )

(1 )

(5,317,322 )

(1 )

(4,987,283 )

(1 )

Share of the profit of associates and

joint ventures

293,945

-

484,622

-

557,084

-

1,000,796

-

Total non-operating income and expenses

775,541

-

854,752

1

(24,431 )

-

2,286,392

1

PROFIT BEFORE INCOME TAX

13,976,238

8

12,324,784

7

33,040,649

7

30,242,236

7

INCOME TAX EXPENSE (Note 26)

2,615,170

1

2,052,371

1

6,212,598

1

5,895,707

1

NET PROFIT FOR THE PERIOD

11,361,068

7

10,272,413

6

26,828,051

6

24,346,529

6

OTHER COMPREHENSIVE INCOME (LOSS)

Items that will not be reclassified

subsequently to profit or loss:

Unrealized gain (loss) on equity investments at fair

value through other comprehensive income

(2,027 )

-

57,722

-

(58,126 )

-

37,950

-

(Continued)

For the Three Months Ended September 30 For the Nine Months Ended September 30

2025

2024

(Retrospectively Adjusted)

2025

2024

(Retrospectively Adjusted)

NT$

%

NT$

%

NT$

%

NT$

%

Share of other comprehensive income (loss)

of associates and joint ventures

$ 1,869,550

1

$ (729,245 )

- $ 1,088,851

- $ 781,689

-

1,867,523

1

(671,523 )

- 1,030,725

- 819,639

-

Items that may be reclassified subsequently to

profit or loss:

Exchange differences on translating foreign

operations 9,219,055 5 (2,372,586 ) (2 ) (14,055,471 ) (3 ) 8,879,060 2

Unrealized loss on debt investments at fair value through other comprehensive

income (4,500 )

-

(4,396 )

-

(13,020 )

-

(12,722 )

-

Loss on hedging instruments (21,725 )

-

(429,487 )

-

(1,127,723 )

-

(131,171 )

-

Share of other comprehensive income

of associates and joint ventures

18,668

-

33,339

-

8,068

-

31,150

-

9,211,498

5

(2,773,130 )

(2 )

(15,188,146 )

(3 )

8,766,317

2

Other comprehensive income (loss) for the

period, net of income tax

11,079,021

6

(3,444,653 )

(2 )

(14,157,421 )

(3 )

9,585,956

2

TOTAL COMPREHENSIVE INCOME FOR

THE PERIOD

$

22,440,089

13

$

6,827,760

4

$

12,670,630

3

$

33,932,485

8

NET PROFIT ATTRIBUTABLE TO:

Owners of the Company

$ 10,869,762

7

$ 9,732,540

6

$ 25,944,680

6

$ 23,170,408

5

Non-controlling interests

491,306

-

539,873

-

883,371

-

1,176,121

1

$ 11,361,068

7

$ 10,272,413

6

$ 26,828,051

6

$ 24,346,529

6

TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO:

Owners of the Company

$ 21,292,213

13

$ 6,444,800

4

$ 12,635,084

3

$ 32,175,747

7

Non-controlling interests

1,147,876

-

382,960

-

35,546

-

1,756,738

1

$ 22,440,089

13

$ 6,827,760

4

$ 12,670,630

3

$ 33,932,485

8

EARNINGS PER SHARE (Note 27)

Basic

$ 2.50

$ 2.25

$ 5.99

$ 5.37

Diluted

$ 2.41

$ 2.18

$ 5.73

$ 5.18

The accompanying notes are an integral part of the consolidated financial statements.

(Concluded)

ASE TECHNOLOGY HOLDING CO., LTD. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY

(In Thousands of New Taiwan Dollars)



Equity Attributable to Owners of the Company



Other Equity



Exchange

Differences on

Share Capital Retained Earnings Translating

Unrealized G ain

(Loss) on Financial Equity Directly

Assets at Fair Value Gain (Loss) Unearned Associated with



Shares



Unappropriated Foreign

Through Other on Hedging Employee Disposal Groups

Non-controlling

(In Thousands)

Amounts Capital Surplus Legal Reserve Special Reserve Earnings

Total Operations

Comprehensive Income Instruments Benef it Held for Sale

Total Treasury Total

Interests

Total Equity

BALANCE AT JANUARY 1, 2024 4,385,450 $ 43,854,498 $ 144,407,128 $ 18,584,524 $ 2,959,573 $ 92,573,773 $ 114,117,870 $ (7,033,730 ) $ 4,166,017 $ 277,441 $ - $ (4,676 ) $ (2,594,948 ) $ (1,959,107 ) $ 297,825,441 $ 20,284,280 $ 318,109,721

































Appropriation of 2023 earnings

Legal reserve - - - 3,232,866 - (3,232,866 ) - - - - - - - - - - -

Special reserve - - - - (167,613 ) 167,613 - - - - - - - - - - -

Cash dividends distributed by the Company - - - - - (22,838,947 ) (22,838,947 ) - - - - - - - (22,838,947 ) - (22,838,947 )

















-

-
- 3,232,866 (167,613 ) (25,904,200 ) (22,838,947 )
-
-
-
- - -
- (22,838,947 )
- (22,838,947 )

































Changes from investments in associates accounted









for using the equity method - - 25,028 - - - - - - - - - - - 25,028 - 25,028 Other changes in the capital surplus

-
- 68
-
-
-
-
-
-
-
- - -
- 68
- 68



Net profit for the nine months ended September 30, 2024

-
-
-
-
- 23,170,408 23,170,408
-
-
-
- - -
- 23,170,408 1,176,121 24,346,529 Other comprehensive income (loss) for the nine months

ended September 30, 2024, net of income tax - - - - - - - 8,298,046 805,259 (102,642 ) - 4,676 9,005,339 - 9,005,339 580,617 9,585,956

































Total comprehensive income (loss) for the nine months

ended September 30, 2024, net of income tax - - - - - 23,170,408 23,170,408 8,298,046 805,259 (102,642 ) - 4,676 9,005,339 - 32,175,747 1,756,738 33,932,485



































Cash dividends received by subsidiaries from the Company - - 379,462 - - - - - - - - - - - 379,462 - 379,462 Differences between consideration and carrying amount

arising from acquisition or disposal of subsidiaries - - - - - - - - - - - - - - - 177,487 177,487

































Changes in percentage of ownership interest in subsidiaries

(Note 30) - - (250,052 ) - - (5,439 ) (5,439 ) - - - - - - - (255,491 ) (201,203 ) (456,694 )



Share-based payment from the Company











(Note 28) 26,669 266,690 3,634,237 - - 76,028 76,028 - - - (1,875,082 ) - (1,875,082 ) - 2,101,873 - 2,101,873



Cash dividends distributed by subsidiaries - - - - - - - - - - - - - - - (593,390 ) (593,390 ) Share-based payment from subsidiaries (Note 28)

-
- 43,193
-
-
-
-
-
-
-
- - -
- 43,193 189,886 233,079 Issue of convertible bonds by subsidiaies (Note 21)
-
-
-
-
-
-
-
-
-
-
- - -
-
- 39,946 39,946 Disposal of investments in equity instruments at fair value







































through other comprehensive income - - - - - (58,828 ) (58,828 ) - 58,828 - - - 58,828 - - - -

































BALANCE AT SEPTEMBER 30, 2024 4,412,119 $ 44,121,188 $ 148,239,064 $ 21,817,390 $ 2,791,960 $ 89,851,742 $ 114,461,092 $ 1,264,316 $ 5,030,104 $ 174,799 $ (1,875,082 ) $ - $ 4,594,137 $ (1,959,107 ) $ 309,456,374 $ 21,653,744 $ 331,110,118

































(Retrospectively Adjusted)

BALANCE AT JANUARY 1, 2025 4,415,251 $ 44,152,505 $ 148,872,716 $ 21,817,390 $ 2,791,960 $ 99,337,337 $ 123,946,687 $ 5,051,905 $ 4,373,860 $ 715,703 $ (1,631,257 ) $ - $ 8,510,211 $ (1,959,107 ) $ 323,523,012 $ 22,263,583 $ 345,786,595



Appropriation of 2024 earnings

Legal reserve - - - 3,259,174 - (3,259,174 ) - - - - - - - - - - -

Cash dividends distributed by the Company - - - - - (23,420,372 ) (23,420,372 ) - - - - - - - (23,420,372 ) - (23,420,372 )



-

-
- 3,259,174
- (26,679,546 ) (23,420,372 )
-
-
-
- - -
- (23,420,372 )
- (23,420,372 )

































Changes from investments in associates accounted









for using the equity method - - 44,299 - - - - - - - - - - - 44,299 - 44,299 Other changes in the capital surplus

-
- 76
-
-
-
-
-
-
-
- - -
- 76
- 76



Net profit for the nine months ended September 30, 2025

-
-
-
-
- 25,944,680 25,944,680
-
-
-
- - -
- 25,944,680 883,371 26,828,051 Other comprehensive income (loss) for the nine months

ended September 30, 2025, net of income tax - - - - - - - (13,452,103 ) 1,019,018 (876,511 ) - - (13,309,596 ) - (13,309,596 ) (847,825 ) (14,157,421 )

































Total comprehensive income (loss) for the nine months

ended September 30, 2025, net of income tax - - - - - 25,944,680 25,944,680 (13,452,103 ) 1,019,018 (876,511 ) - - (13,309,596 ) - 12,635,084 35,546 12,670,630



































Cash dividends received by subsidiaries from the Company

-
- 386,307
-
-
-
-
-
-
-
- - -
- 386,307
- 386,307 Differences between consideration and carrying amount

arising from acquisition of subsidiaries (Note 30) - - (68,093 ) - - - - - - - - - - - (68,093 ) 10,618 (57,475 )

































Changes in percentage of ownership interest in

subsidiaries (Note 30) - - (40,522 ) - - - - - - - - - - - (40,522 ) (9,209 ) (49,731 )



































Share-based payment from the Company (Note 28) 21,431 214,315 2,680,165 - - - - - - - 848,028 - 848,028 - 3,742,508 - 3,742,508 Cash dividends distributed by subsidiaries - - - - - - - - - - - - - - - (514,157 ) (514,157 )



































































Share-based payment from subsidiaries (Note 28) - - 240,323 - - - - - - - - - - - 240,323 451,248 691,571 Issue of convertible bonds by subsidiaries (Note 21) - - - - - - - - - - - - - - - 272,167 272,167 Disposal of investments in equity instruments at fair value

through other comprehensive income - - - - - (15,489 ) (15,489 ) - 15,489 - - - 15,489 - - - -



BALANCE AT SEPTEMBER 30, 2025 4,436,682 $ 44,366,820 $ 152,115,271 $ 25,076,564 $ 2,791,960 $ 98,586,982 $ 126,455,506 $ (8,400,198 ) $ 5,408,367 $ (160,808 ) $ (783,229 ) $ - $ (3,935,868 ) $ (1,959,107 ) $ 317,042,622 $ 22,509,796 $ 339,552,418



The accompanying notes are an integral part of the consolidated financial statements.

- 8 -

For the Nine Months Ended September 30

2024

(Retrospectively

2025

Adjusted)

NT$

NT$

CASH FLOWS FROM OPERATING ACTIVITIES

Profit before income tax

$ 33,040,649

$ 30,242,236

Adjustments for:

Depreciation expense

46,751,585

41,573,441

Amortization expense

2,862,897

2,881,899

Net loss (gain) on fair value changes of financial assets

and liabilities at fair value through profit or loss

4,034,825

(5,815,996 )

Finance costs

5,317,322

4,987,283

Interest income

(1,408,467 )

(1,407,437 )

Dividend income

(108,756 )

(183,227 )

Share-based payment compensations

2,121,658

1,502,729

Share of profit of associates and joint ventures

(557,084 )

(1,000,796 )

Loss (gain) on disposal of property, plant and equipment

(348,222 )

(125,082 )

Impairment loss recognized on financial assets

199,465

121,811

Impairment loss recognized on non-financial assets

596,191

258,213

Gain on bargain purchase

-

(76,715 )

Net loss (gain) on foreign currency exchange

(4,870,486 )

1,032,917

Others

6,274

(107,840 )

Changes in operating assets and liabilities

Financial assets mandatorily classified as at fair value

through profit or loss

4,576,576

5,965,781

Contract assets

(1,403,276 )

(253,142 )

Trade receivables

(12,465,802 )

(14,939,264 )

Other receivables

104,670

452,036

Inventories

(5,274,532 )

(5,741,827 )

Other current assets

(1,467,286 )

(1,025,530 )

Other financial assets

438,685

571,891

Other operating assets

52,021

10,808

Financial liabilities held for trading

(4,403,585 )

(2,128,467 )

Trade payables

12,220,305

12,068,234

Other payables

1,231,252

(1,262,959 )

Other current liabilities

690,030

(63,817 )

Other operating liabilities

(456,032 )

(312,098 )

Cash generated from operations

81,480,877

67,225,082

Interest received

1,357,660

1,302,787

Dividend received

586,194

654,332

Interest paid

(5,677,683 )

(4,779,837 )

Income tax paid

(6,302,950 )

(8,859,682 )

Net cash generated from operating activities

71,444,098

55,542,682

(Continued)

For the Nine Months Ended September 30 2024 (Retrospectively 2025 Adjusted)

NT$

NT$

CASH FLOWS FROM INVESTING ACTIVITIES

Purchase of financial assets at fair value through other

comprehensive income

$ (478,350 )

$ (13,560 )

Proceeds from sale of financial assets at fair value through

other comprehensive income

-

405

Return of capital from financial assets at fair value

through other comprehensive income

29,000

129,401

Net proceeds outflow on acquisition of

subsidiaries

(238,782 )

(1,649,316 )

Payments for property, plant and equipment

(126,191,477 )

(47,657,506 )

Proceeds from disposal of property, plant and equipment

1,817,966

589,870

Increase in other receivables from related parties

-

(1,500,000 )

Payments for intangible assets

(868,272 )

(629,425 )

Proceeds from disposal of intangible assets

10,772

2,521

Payments for right-of-use assets

(129,315 )

(200,481 )

Payments for investment properties

(24,146 )

(10,676 )

Proceeds from disposal of investment properties

-

34

Increase in other financial assets

(1,514,286 )

(1,571,304 )

Decrease in other financial assets

581,477

1,461,086

Increase in other non-current assets

(334,921 )

(156,091 )

Decrease in other non-current assets

290,345

23,384

Income tax paid

-

(1,170,149 )

Net cash used in investing activities

(127,049,989 )

(52,351,807 )

CASH FLOWS FROM FINANCING ACTIVITIES

Proceeds from short-term borrowings

-

571,526

Repayment of short-term borrowings

(997,260 )

-

Proceeds from short-term bills payable

14,909,056

1,710,446

Proceeds from bonds offering

4,376,855

334,780

Repayment of bonds payable

(15,000,000 )

(10,800,000 )

Proceeds from long-term borrowings

416,794,605

166,098,978

Repayment of long-term borrowings

(332,257,677 )

(139,476,816 )

Repayment of the principle portion of lease liabilities

(810,891 )

(1,136,577 )

Dividends paid

(23,033,989 )

(22,459,417 )

Proceeds from exercise of employee share options

2,312,176

832,224

Decrease in non-controlling interests

(648,678 )

(872,613 )

Other financing activities

(17,730 )

(605 )

Net cash generated from (used in) financing activities

65,626,467

(5,198,074 )

(Continued)

For the Nine Months Ended September 30 2024 (Retrospectively 2025 Adjusted) NT$ NT$

EFFECTS OF EXCHANGE RATE CHANGES ON THE BALANCE OF CASH AND CASH

EQUIVALENTS $ (11,371,056 ) $ 6,433,809

NET INCREASE (DECREASE) IN CASH AND CASH

EQUIVALENTS (1,350,480 ) 4,426,610

CASH AND CASH EQUIVALENTS AT THE BEGINNING

OF THE PERIOD 76,492,824 67,284,518

CASH AND CASH EQUIVALENTS AT THE END OF

THE PERIOD $ 75,142,344 $ 71,711,128

The accompanying notes are an integral part of the consolidated financial statements.

(Concluded)

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS FOR THE NINE MONTHS ENDED SEPTEMBER 30, 2025 AND 2024 (Amounts in Thousands of New Taiwan Dollars, Unless Stated Otherwise)
  1. GENERAL INFORMATION

    ASE Technology Holding Co., Ltd. (the "Company") is a corporation incorporated in Nanzih Technology Industrial Park under the laws of Republic of China ("R.O.C.") starting from April 30, 2018 (date of incorporation). The Company and its subsidiaries (collectively referred to as the "Group") offer a comprehensive range of semiconductors packaging, testing, and electronic manufacturing services ("EMS").

    The Company's subsidiaries, Advanced Semiconductor Engineering, Inc. (symbol "2311", "ASE") and Siliconware Precision Industries Co., Ltd. (symbol "2325", "SPIL"), entered into and executed a joint share exchange agreement to establish the Company and the Company acquired all issued and outstanding ordinary shares of ASE and SPIL on April 30, 2018. Both of ASE's and SPIL's ordinary shares have been delisted while the ordinary shares of the Company were listed starting from the same date under the symbol "3711". In addition, ASE's ordinary shares that have been traded on the New York Stock Exchange (the "NYSE") under the symbol "ASX" in the form of American Depositary Shares ("ADS") starting from September 2000 were exchanged as the Company's ADSs under the same symbol "ASX" starting from April 30, 2018.

    The Company's subsidiaries, ASE and SPIL, were approved by the competent authority to terminate their public offering in March 2024 and April 2024, respectively to cease the status as a public company.

    The ordinary shares of the Company's subsidiary, Universal Scientific Industrial (Shanghai) Co., Ltd. ("USISH"), have been listed on the Shanghai Stock Exchange under the symbol "601231" since February 2012.

    The consolidated financial statements are presented in the Company's functional currency, New Taiwan dollar (NT$).

  2. APPROVAL OF FINANCIAL STATEMENTS

    The consolidated financial statements were authorized by the board of directors on November 10, 2025.

  3. APPLICATION OF NEW, AMENDED AND REVISED STANDARDS AND INTERPRETATIONS

    1. Initial application of the amendments to the International Financial Reporting Standards (IFRS), International Accounting Standards (IAS), IFRIC Interpretations (IFRIC), and SIC Interpretations (SIC) endorsed and issued into effect by the Financial Supervisory Commission (the "FSC")(collectively, the "IFRS Accounting Standards")

      The initial application of the Amendments to the IFRS Accounting Standards did not have a material impact on the Group's accounting policies.

    2. The IFRS Accounting Standards endorsed by the FSC for application starting from 2026

      New, Revised or Amended Standards and Interpretations

      Effective Date Announced by International Accounting

      Standards Board (IASB)

      Amendments to IFRS 9 and IFRS 7 "Amendments to the Classification and Measurement of Financial Instruments"

      January 1, 2026

      Annual Improvements to IFRS Accounting Standards - Volume 11 January 1, 2026

      As of the date the consolidated financial statements were authorized for issue, the Group is continuously assessing the possible impact of the application of the amendments on the Group's financial position and financial performance.

    3. The IFRS Accounting Standards in issue but not yet endorsed and issued into effect by the FSC

      New, Revised or Amended Standards and Interpretations

      Effective Date

      Announced by IASB (Note 1)

      Amendments to IFRS 10 and IAS 28 "Sale or Contribution of Assets between an Investor and its Associate or Joint Venture"

      To be determined by IASB

      IFRS 18 "Presentation and Disclosures in Financial Statements" January 1, 2027 (Note 2)

      Note 1: Unless stated otherwise, the above IFRS Accounting Standards are effective for annual reporting periods beginning on or after their respective effective dates.

      Note 2: On September 25, 2025, the FSC announced that IFRS 18 will take effect starting from January 1, 2028. Domestic entities could elect to apply IFRS 18 for an earlier period after the endorsement of IFRS 18 by the FSC.

      IFRS 18 "Presentation and Disclosures in Financial Statements"

      IFRS 18 will supersede IAS 1" Presentation of Financial Statements". The main changes comprise:

      • Items of income and expenses included in the statement of profit or loss shall be classified into the operating, investing, financing, income taxes and discontinued operations categories.

      • The statement of profit or loss shall present totals and subtotals for operating profit or loss, profit or loss before financing and income taxes and profit or loss.

      • Provides guidance to enhance the requirements of aggregation and disaggregation: The Group shall identify the assets, liabilities, equity, income, expenses and cash flows that arise from individual transactions or other events and shall classify and aggregate them into groups based on shared characteristics, so as to result in the presentation in the primary financial statements of line items that have at least one similar characteristic. The Group shall disaggregate items with dissimilar characteristics in the primary financial statements and in the notes. The Group labels items as "other" only if it cannot find a more informative label.

      • Disclosures on Management-defined Performance Measures (MPMs): When in public communications outside financial statements and communicating to users of financial statements management's view of an aspect of the financial performance of the Group as a whole, the Group shall disclose related information about its MPMs in a single note to the financial statements, including the description of such measures, calculations, reconciliations to the subtotal or total specified by IFRS Accounting Standards and the income tax and non-controlling interests effects of related reconciliation items.

      Except for the above impact, as of the date the consolidated financial statements were authorized for issue, the Group is continuously assessing other impacts of the above amended standards and interpretations on the Group's financial position and financial performance and will disclose the relevant impact when the assessment is completed.

  4. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

    1. Statement of compliance

      These interim consolidated financial statements have been prepared in accordance with the Regulations Governing the Preparation of Financial Reports by Securities Issuers and IAS 34 "Interim Financial Reporting" as endorsed and issued into effect by the FSC. Disclosure information included in these interim consolidated financial statements is less than the disclosure information required in a complete set of annual consolidated financial statements.

    2. Basis of consolidation

      1. Principles for preparing consolidated financial statements

        The basis for the consolidated financial statements applied in these interim consolidated financial statements is consistent with those applied in the consolidated financial statements for the year ended December 31, 2024.

      2. The detail information of the subsidiaries was as follows:

        Establishment Percentage of Ownership (%) and Operating September December September

        Name of Investo

        r Name of Subsidiary

        Main Businesses

        Location

        30, 2025 3

        1, 2024

        30, 2024

        The Company

        ASE

        Engaged in the packaging and

        R.O.C.

        100.0

        100.0

        100.0

        testing of semiconductors

        USI Inc. ("USIINC")

        Holding company

        R.O.C.

        100.0

        100.0

        100.0

        SPIL

        Engaged in the assembly, testing

        R.O.C.

        100.0

        100.0

        100.0

        ASE Social Enterprise Co.,

        and turnkey services of integrated circuit

        Engaged in social services

        R.O.C.

        100.0

        100.0

        100.0

        Ltd. ("ASE SOCIAL")

        ASE Global Integrated

        Engaged in integration-relevant

        R.O.C.

        100.0

        100.0

        100.0

        Solutions Co., Ltd.

        services

        ASE

        A.S.E. Holding Limited

        Holding company

        Bermuda

        100.0

        100.0

        100.0

        J & R Holding Limited ("J&R

        Holding company

        Bermuda

        100.0

        100.0

        100.0

        Holding")

        Innosource Limited

        Holding company

        British Virgin

        100.0

        100.0

        100.0

        Islands

        Omniquest Industrial Limited

        Holding company

        British Virgin

        71.0

        71.0

        71.0

        Islands

        ASE Marketing & Service

        Engaged in marketing and sales

        Japan

        100.0

        100.0

        100.0

        Japan Co., Ltd.

        services

        ASE Test, Inc. ("ASET")

        Engaged in the testing of

        R.O.C.

        100.0

        100.0

        100.0

        Advanced Microelectronic

        semiconductors

        Engaged in the manufacturing of

        R.O.C.

        6.9

        6.9

        7.6

        Products Inc. ("AMPI")

        integrated circuit

        ASE Singapore Pte. Ltd.

        Engaged in the packaging and

        Singapore

        100.0

        100.0

        100.0

        testing of semiconductors

        ASE Electronics (M) Sdn. Bhd.

        Engaged in the packaging and

        Malaysia

        100.0

        100.0

        100.0

        testing of semiconductors

        ASEP Cayman Ltd.

        Engaged in the packaging and

        British Cayman

        100.0

        100.0

        100.0

        ("ASEPCAYMAN")

        testing of semiconductors, and

        Islands

        was acquired in August 2024

        (Note 29)

        ASET

        Alto Enterprises Limited

        Holding company

        British Virgin

        100.0

        100.0

        100.0

        Islands

        Super Zone Holdings Limited

        Holding company

        Hong Kong

        100.0

        100.0

        100.0

        (Continued)

        Name of Investor Name of Subsidiary Main Businesses Location 30, 2025 31, 2024 30, 2024

        TLJ Intertech Inc. Engaged in information software services

        AMPI Engaged in the manufacturing of integrated circuit

        R.O.C. 60.0 60.0 60.0

        R.O.C. 54.1 48.9 48.9

        A.S.E. Holding Limited

        ASE Investment (Labuan) Inc. Holding company Malaysia 70.1 70.1 70.1

        ASE Test Limited ("ASE Test")

        Integrated Solutions Enterprise Europe

        Holding company Singapore 10.2 10.2 10.2

        Trading company Belgium 100.0 100.0 100.0

        J&R Holding ASE Test Holding company Singapore 89.8 89.8 89.8

        Omniquest Industrial Limited Holding company British Virgin Islands

        8.4 8.4 8.4

        J&R Industrial Inc. Engaged in leasing and investing activity

        ASE Japan Co., Ltd. Engaged in the packaging and testing of semiconductors

        ASE (U.S.) Inc. After-sales service and sales support

        R.O.C. 100.0 100.0 100.0

        Japan 100.0 100.0 100.0

        U.S.A. 100.0 100.0 100.0

        Global Advanced Packaging Technology Limited

        Holding company British Cayman Islands

        100.0 100.0 100.0

        Innosource Limited Omniquest Industrial Limited Holding company British Virgin

        Islands

        20.6 20.6 20.6

        ASE (Shanghai) Inc. ("ASEMTL")

        ASE Enterprise Management (Shanghai) Inc. ("ASEEMSH")

        Engaged in the production of substrates

        Engaged in the leasing of properties and buildings

        Shanghai, China 8.5 8.5 8.5

        Shanghai, China 8.5 8.5 8.5

        Omniquest Industrial Limited

        ASE Corporation Holding company British Cayman Islands

        100.0 100.0 100.0

        Alto Enterprises Limited

        ASE Investment (Kun Shan) Limited

        Holding company Kun Shan, China 100.0 100.0 100.0

        Super Zone Holdings Limited

        Advanced Semiconductor Engineering (China) Ltd.

        Engaged in the packaging and testing of semiconductors,

        ASE Investment

        ASE (Korea) Inc.

        Engaged in the packaging and

        Korea

        100.0

        100.0

        100.0

        (Labuan) Inc.

        testing of semiconductors

        ASE (Korea) Inc

        ASE Cheonan, Inc.

        Engaged in the packaging and

        Korea

        100.0

        100.0

        100.0

        after-sale services, advisory and lease of factory

        Shanghai, China 100.0 100.0 100.0

        ("CHE")

        testing of semiconductors, and was acquired in August 2024 (Note 29)

        ASE Test ASE Test Holdings, Ltd. Holding company British Cayman

        Islands

        100.0 100.0 100.0

        ASE Test Holdings, Ltd.

        ASE Investment (Labuan) Inc. Holding company

        Malaysia

        29.9

        29.9

        29.9

        U.S.A.

        100.0

        100.0

        100.0

        U.S.A.

        100.0

        100.0

        100.0

        Shanghai, China

        100.0

        100.0

        100.0

        Wuxi, China

        100.0

        100.0

        100.0

        Shanghai, China

        100.0

        100.0

        100.0

        Shanghai, China

        60.0

        60.0

        60.0

        Shanghai, China

        100.0

        100.0

        100.0

        Shanghai, China

        100.0

        100.0

        100.0

        ISE Labs, Inc. Engaged in the testing of semiconductors

        ISE Labs, Inc. ISE Services, Inc. Engaged in turnkey services of

        semiconductors

        Global Advanced Packaging Technology Limited

        ASE Assembly & Test (Shanghai) Limited ("ASESH")

        Engaged in the packaging and testing of semiconductors and leasing of properties

        ASESH Wuxi Tongzhi Microelectronics Co., Ltd.

        Engaged in the packaging and testing of semiconductors

        ISE Labs, China, Ltd. Engaged in the testing of semiconductor

        Shanghai Ding Hui Real Estate Development Co., Ltd. ("DH")

        DH Shanghai Ding Qi Property Management Co., Ltd.

        Shanghai Ding Wei Real Estate Development Co., Ltd.

        Shanghai Ding Yu Real Estate Development Co., Ltd.

        Kun Shan Ding Hong Real Estate Development Co., Ltd.

        Shanghai Ding Xu Property Management Co., Ltd. Shanghai Ding Yao Estate Development Co., Ltd.

        Shanghai Ding Fan Business Management Co., Ltd.

        Engaged in the development, construction and sale of real estate properties

        Engaged in the management of real estate properties

        Engaged in the management of properties, parking lot business and leasing of properties for shopping center

        Engaged in the management of properties, parking lot business and leasing of properties for shopping center

        Engaged in the development, construction and leasing of properties for shopping center

        Engaged in the management of real estate properties

        Engaged in the management of real estate properties

        Engaged in the management of commercial complex services and department store trading

        Shanghai, China 100.0 100.0 100.0

        Kun Shan, China

        100.0

        100.0

        100.0

        Shanghai, China

        100.0

        100.0

        100.0

        Shanghai, China

        100.0

        100.0

        100.0

        Shanghai, China

        100.0

        100.0

        100.0

        (Continued)

        Name of Investor Name of Subsidiary Main Businesses Location 30, 2025 31, 2024 30, 2024

        ASE Corporation ASE Mauritius Inc. Holding company Mauritius 100.0 100.0 100.0

        ASE Labuan Inc. Holding company Malaysia 100.0 100.0 100.0

        ASE Mauritius Inc. ASEMTL Engaged in the production of substrates

        ASEEMSH Engaged in the leasing of properties and buildings

        ASE Labuan Inc. ASE Electronics Inc. Engaged in the production of

        substrates

        Shanghai, China 91.5 91.5 91.5

        Shanghai, China 91.5 91.5 91.5

        R.O.C. 100.0 100.0 100.0

        ASEMTL Advanced Semiconductor Engineering (HK) Limited

        Engaged in the trading of substrates Hong Kong 100.0 100.0 100.0

        USISH Engaged in the designing, manufacturing and sales of electronic components

        ASEEMSH DH Engaged in the development, construction and sale of real estate properties

        ASEPCAYMAN Cyland Corp. Engaged in the leasing of real estate

        Shanghai, China 0.8 0.8 0.8

        Shanghai, China 40.0 40.0 40.0

        Philippines 39.8 39.8 39.8

        USIINC Huntington Holdings International Co., Ltd.

        Holding company British Virgin Islands

        100.0 100.0 100.0

        Huntington Holdings International Co., Ltd.

        Unitech Holdings International Co., Ltd.

        Holding company British Virgin Islands

        100.0 100.0 100.0

        Real Tech Holdings Limited Holding company British Virgin

        Islands

        100.0 100.0 100.0

        Universal ABIT Holding Co., Ltd.

        In the process of liquidation British Cayman

        Islands

        100.0 100.0 100.0

        Real Tech Holdings Limited

        USI Enterprise Limited ("USIE")

        Universal Ample Technology Co., Limited

        Engaged in the service of investment advisory and warehousing management

        Holding company (Acquired from Universal Global Technology Co., Limited in September 2025)

        Hong Kong 100.0 100.0 100.0

        Hong Kong 75.1 - -

        Universal Ample Technology Co., Limited

        Hirschmann Mobility Holding GmbH (renamed in January 2024, formerly named as setus 80.GmbH)

        Holding company Germany 100.0 100.0 100.0

        Hirschmann Mobility Holding GmbH

        Hirschmann Car Communication Holding

        S.a.r.l. ("Hirschmann")

        Hirschmann Car Communication GmbH

        Hirschmann Car Communication Kft.

        Hirschmann Car Communication, Inc.

        Holding company(was subsequently merged and absorbed by Hirschmann Mobility Holding GmbH in July 2025)

        Engaged in the research and development, manufacturing and sales of PCBAs and tuners

        Engaged in the manufacturing and sales of antennas, RF amplifiers, connectors and wave straps

        Engaged in the research and development, and sales marketing

        Luxembourg - 100.0 100.0

        Germany 100.0 - -

        Hungary 100.0 - -

        U.S.A. 100.0 - -

        Hirschmann Hirschmann Car Communication GmbH

        Hirschmann Car Communication Kft.

        Hirschmann Car Communication, Inc.

        Engaged in the research and development, manufacturing and sales of PCBAs and tuners

        Engaged in the manufacturing and sales of antennas, RF amplifiers, connectors and wave straps

        Engaged in the research and development, and sales marketing

        Germany - 100.0 100.0

        Hungary - 100.0 100.0

        U.S.A. - 100.0 100.0

        Hirschmann Car

        Communication GmbH

        Hirschmann Car

        Communication S.A.S.

        Hirschmann Car Communication (Shanghai) Co., Ltd.

        Engaged in the research and

        development, and sales marketing

        Engaged in the sales of antennas, RF amplifiers and wave straps, PCBs, and tuners

        France 100.0 100.0 100.0

        Shanghai, China 100.0 100.0 100.0

        USIE USISH Engaged in the designing, manufacturing and sales of electronic components

        Shanghai, China 76.8 77.1 77.2

        USISH Universal Global Technology Co., Limited

        Holding company Hong Kong 100.0 100.0 100.0

        Universal Global Technology (Kunshan) Co., Ltd. ("UGKS")

        Universal Global Technology (Shanghai) Co., Ltd.

        Engaged in the designing and manufacturing of electronic components

        Engaged in the processing and sales of computer and communication peripherals as well as business in import and export of goods and technology

        Kun Shan, China 100.0 100.0 100.0

        Shanghai, China 100.0 100.0 100.0

        (Continued)

        Name of Investor

        Name of Subsidiary

        Main Businesses

        Location

        30, 2025 3

        1, 2024

        30, 2024

        Universal Global Electronics

        Engaged in the sales of electronic

        Shanghai, China

        100.0

        100.0

        100.0

        (Shanghai) Co., Ltd.

        components and

        telecommunications equipment

        USI Electronics (Shenzhen)

        Engaged in the design,

        Shenzhen, China

        50.0

        50.0

        50.0

        Co., Ltd. ("USISZ")

        manufacturing and sales of

        motherboards and computer

        peripherals

        Universal Global Technology

        Engaged in the research and

        Huizhou, China

        100.0

        100.0

        100.0

        (Huizhou) Co., Ltd.

        manufacturing of new electronic

        applications, communications,

        computers and other electronics

        products and also provided

        auxiliary technical services as

        well as import and export

        services

        FINANCIERE AFG ("FAFG")

        Holding company

        France

        10.4

        10.4

        10.4

        Universal Global

        Universal Global Industrial

        Engaged in manufacturing, trading

        Hong Kong

        100.0

        100.0

        100.0

        Technology Co.,

        Co., Limited

        and investing activity

        Limited

        Universal Global Scientific

        Engaged in the manufacturing of

        R.O.C.

        100.0

        100.0

        100.0

        Industrial Co., Ltd.

        components of

        ("UGTW")

        telecommunication and cars and

        provision of related R&D

        services

        USI America Inc.

        Engaged in the manufacturing and

        U.S.A.

        100.0

        100.0

        100.0

        processing of motherboards and

        wireless network communication

        and provision of related technical service

        Universal Scientific Industrial

        Engaged in the assembling of

        Mexico

        100.0

        100.0

        100.0

        De Mexico S.A. De C.V.

        motherboards and computer

        components

        USI Japan Co., Ltd.

        Engaged in the manufacturing and

        Japan

        100.0

        100.0

        100.0

        sales of computer peripherals,

        integrated chip and other related accessories

        USISZ Engaged in the design, manufacturing and sales of motherboards and computer peripherals

        Shenzhen, China 50.0 50.0 50.0

        Universal Scientific Industrial (France)

        Engaged in investing activities France 100.0 100.0 100.0

        UNIVERSAL SCIENTIFIC

        INDUSTRIAL VIETNAM COMPANY LIMITED

        Engaged in IC assembly for

        wearable devices

        Vietnam

        100.0

        100.0

        100.0

        Universal Ample Technology

        Holding company(Disposed to Real

        Hong Kong

        -

        75.1

        75.1

        Co., Limited

        Tech Holdings Limited in

        September 2025)

        Universal Global

        Universal Scientific Industrial

        Engaged in the assembling of

        Mexico

        (Note 1)

        (Note 1)

        (Note 1)

        Industrial Co.,

        De Mexico S.A. De C.V.

        motherboards and computer

        Limited

        components

        UGTW

        Universal Scientific Industrial

        Engaged in the manufacturing,

        R.O.C.

        100.0

        100.0

        100.0

        Co., Ltd.

        processing and sales of

        computers, computer peripherals

        and related accessories

        Universal Global

        USI Science and Technology

        Engaged in the design of electronic

        Shenzhen, China

        100.0

        100.0

        100.0

        Electronics

        (Shenzhen) Co., Ltd.

        components, service of technical

        (Shanghai) Co., Ltd.

        advisory; wholesale of electronic

        components and communication

        peripherals as well as business in

        import and export of goods and

        management of properties

        Universal Scientific

        FAFG

        Holding company

        France

        89.6

        89.6

        89.6

        Industrial (France)

        FAFG

        MANUFACTURING POWER

        Engaged in the design and

        Tunisia

        99.9

        99.9

        99.9

        TUNISIA

        manufacturing of electronic

        components

        ASTEELFLASH MEXICO

        Engaged in the design and

        Mexico

        99.9

        99.9

        99.9

        S.A. de C.V.

        manufacturing of electronic

        components

        ASTEELFLASH (BEDFORD)

        Engaged in the design and

        United Kingdom

        100.0

        100.0

        100.0

        LIMITED

        manufacturing of electronic

        components

        ASTEELFLASH FRANCE

        Engaged in the design and

        France

        99.9

        99.9

        99.9

        ASTEELFLASH TUNISIE S.A.

        manufacturing of electronic components

        Engaged in the design and manufacturing of electronic components

        Tunisia 100.0 100.0 100.0

        (Continued)

        Name of Investor Name of Subsidiary Main Businesses Location 30, 2025 31, 2024 30,2024

        ASTEELFLASH HONG KONG LIMITED

        Holding company Hong Kong 100.0 100.0 100.0

        Asteelflash Holding GmbH. Engaged in the design and

        manufacturing of electronic components

        Germany 100.0 100.0 100.0

        ASTEELFLASH USHOLDING CORP.

        Holding company U.S.A. 100.0 100.0 100.0

        AFERH TUNISIE Engaged in the management, training and consulting of human resources

        Tunisia 0.5 0.5 0.5

        ASTEELFLASH (BEDFORD) LIMITED

        ASTEEL ELECTRONICS MANUFACTURING SERVICES

        ASTEELFLASH PLZEN S.R.O.

        ASTEELFLASH TUNISIE S.A.

        Engaged in the design and manufacturing of electronic components

        Engaged in the design and manufacturing of electronic components

        Engaged in the design and manufacturing of electronic components

        Tunisia 0.1 0.1 0.1

        Czech Republic 100.0 100.0 100.0

        Tunisia (Note 1) (Note 1) (Note 1)

        ASTEELFLASH TECHNOLOGIE

        ASTEELFLASH FRANCE Engaged in the design and

        manufacturing of electronic components

        France (Note1 ) (Note1 ) (Note1 )

        ASTEELFLASH FRANCE

        ASTEEL ELECTRONICS MANUFACTURING SERVICES

        ASTEELFLASH TECHNOLOGIE

        ASTEELFLASH TUNISIE S.A.

        Engaged in the design and manufacturing of electronic components

        Engaged in projection of plastic and the design and manufacturing of industrial components

        Engaged in the design and manufacturing of electronic components

        Tunisia 99.9 99.9 99.9

        France 100.0 100.0 100.0

        Tunisia (Note 1) (Note 1) (Note 1)

        AFERH TUNISIE Engaged in the management, training and consulting of organization and human resources

        Tunisia 99.5 99.5 99.5

        ASTEELFLASH MEXICO

        S.A. de C.V.

        MANUFACTURING POWER TUNISIA

        Engaged in the design and manufacturing of electronic components

        Engaged in the design and manufacturing of electronic components

        Mexico 0.1 0.1 0.1

        Tunisia 0.1 0.1 0.1

        ASTEELFLASH HONG KONG LIMITED

        Asteelflash Suzhou Co., Ltd Engaged in the design and

        manufacturing of electronic components

        UGHK Engaged in accepting and outsourcing orders as well as sales of electronic components and service of technical advisory

        Suzhou, China 100.0 100.0 100.0

        Hong Kong 100.0 100.0 100.0

        UGHK USI Asteelflash Poland Sp.

        z o.o.(renamed in May 2025, formerly named as Universal Scientific Industrial Poland Sp. z o.o.)

        Engaged in the design and manufacturing of electronic components and new electronic applications

        Poland 100.0 100.0 100.0

        Asteelflash Suzhou Co., Ltd.

        Asteelflash Holding GmbH.

        ASTEELFLASH MEXICO S.A. de C.V.

        ASTEELFLASH TUNISIE S.A.

        ASTEELFLASH Germany GmbH.(renamed in January 2024, formerly named as ASTEELFLASH HERSFELD GmbH)

        ASTEELFLASH DESIGN SOLUTIONS HAMBOURG

        GmbH

        EN ELECTRONICNETWORK SRL

        ASTEELFLASH TUNISIE S.A.

        ASTEELFLASH TUNISIE S.A.

        Engaged in the design and manufacturing of electronic components

        Engaged in the design and manufacturing of electronic components

        Engaged in the design and manufacturing of electronic components

        Engaged in the design and manufacturing of electronic components

        Engaged in the design and manufacturing of electronic components

        Engaged in the design and manufacturing of electronic components

        Tunisia (Note 1) (Note 1) (Note 1)

        Germany 100.0 100.0 100.0

        Germany 100.0 100.0 100.0

        Romania 100.0 100.0 100.0

        Tunisia (Note 1) (Note 1) (Note 1)

        Tunisia (Note 1) (Note 1) (Note 1)

        ASTEELFLASH US HOLDING CORP.

        ASTEELFLASH USA CORP. Engaged in the design and

        manufacturing of electronic components

        U.S.A. 100.0 100.0 100.0

        ASTEELFLASH USA CORP.

        ASTEELFLASH TUNISIE S.A.

        Engaged in the design and manufacturing of electronic components

        Tunisia (Note 1) (Note 1) (Note 1)

        (Continued)

        Name of Investor Name of Subsidiary Main Businesses Location 30, 2025 31, 2024 30,2024

        SPIL

        SPIL (B.V.I.) Holding Limited

        Engaged in investing activities

        British Virgin

        100.0

        100.0

        100.0

        Islands

        Siliconware Precision Malaysia

        Engaged in the assembly and

        Malaysia

        100.0

        100.0

        100.0

        Sdn. Bhd.

        testing

        SPIL (B.V.I.) Holding

        Siliconware USA, Inc.

        Engaged in marketing activities in

        U.S.A.

        100.0

        100.0

        100.0

        Limited

        North America

        SPIL (Cayman) Holding

        Engaged in investing activities

        British Cayman

        100.0

        100.0

        100.0

        Limited

        Islands

        SPIL (Cayman)

        Siliconware Technology

        Engaged in packaging and testing

        Suzhou, China

        100.0

        100.0

        100.0

        Holding Limited

        (Suzhou) Limited

        of semiconductors

        ASE SOCIAL

        Goodcare Holdings Inc.

        Holding company and was

        R.O.C.

        67.2

        -

        -

        acquired in August 2025

        Goodcare Holdings

        Goodcare Health Inc.

        Engaged in the social services and

        R.O.C.

        100.0

        -

        -

        Inc.

        was acquired in August 2025

        TW Future Homecare Inc.

        Engaged in the social services and

        R.O.C.

        100.0

        -

        -

        was acquired in August 2025

        TW Future Homecare

        TC SPRING CO.,LTD.

        Engaged in the social services and

        R.O.C.

        100.0

        -

        -

        Inc.

        was acquired in August 2025

        (Concluded) Note 1: The number of shares held was 1 share and the percentage of ownership was less than

        0.1%.

    3. Other significant accounting policies

      Except for the following, please refer to the consolidated financial statements for the year ended December 31, 2024.

      1. Retirement benefits

        Pension cost for an interim period is calculated on a year-to-date basis by using the actuarially determined pension cost rate at the end of the prior financial year, adjusted for significant market fluctuations since that time and for significant plan amendments, settlements, or other significant one-off events.

      2. Taxation

        Income tax expense represents the sum of the tax currently payable and deferred tax. Interim period income taxes are assessed on an annual basis and calculated by applying to an interim period's pre-tax income the tax rate that would be applicable to expected total annual earnings.

  5. MATERIAL ACCOUNTING JUDGMENTS AND KEY SOURCES OF ESTIMATION UNCERTAINTY

In the application of the Group's accounting policies, management is required to make judgments, estimates, and assumptions on the carrying amounts of assets and liabilities that are not readily apparent from other sources. The estimates and underlying assumptions are based on historical experience and other factors that are considered to be relevant. Actual results may differ from these estimates.

The estimates and underlying assumptions are reviewed on an ongoing basis. Revisions to accounting estimates are recognized in the year in which the estimates are revised if the revisions affect only that year or in the year of the revisions and future years if the revisions affect both current and future years.

The material accounting judgments and key sources of estimation uncertainty adopted by these interim consolidated financial statements is disclosed in the consolidated financial statements for the year ended December 31, 2024.

6. CASH AND CASH EQUIVALENTS

September 30,

2025

December 31,

2024

September 30,

2024

NT$

NT$

NT$

Cash on hand, checking accounts and demand deposits

$ 51,200,371

$ 54,757,980

$ 53,131,427

Cash equivalents 23,941,973

21,734,844

18,579,701

$ 75,142,344

$ 76,492,824

$ 71,711,128

Cash equivalents include time deposits that is of a short maturity of three months or less from the date of acquisitions, and are highly liquid, readily convertible to known amounts in cash and the risk of changes in values is insignificant. Cash equivalents are held for the purpose of meeting short-term cash commitments.

  1. FINANCIAL INSTRUMENTS AT FAIR VALUE THROUGH PROFIT OR LOSS (FVTPL) September 30,

    2025

    December 31,

    2024

    September 30, 2024 (Retrospectively

    Adjusted)

    NT$ NT$ NT$

    Financial assets mandatorily classified as at FVTPL

    Derivative instruments (non-designated hedges)

    Swap contracts

    $ 992,930

    $ 4,282,512

    $ 1,755,607

    Forward exchange contracts

    244,625

    258,362

    82,493

    Non-derivative financial assets Quoted shares

    1,926,171

    2,898,751

    2,763,834

    Private-placement funds

    1,510,065

    1,503,382

    1,556,428

    Unquoted shares

    752,510

    863,484

    874,126

    Open-end mutual funds

    666,249

    590,346

    591,713

    Other investment agreement

    1,400

    -

    -

    Hybrid financial assets

    Structured time deposits

    2,062,440

    -

    -

    Equity-linked structured products

    417,143

    -

    -

    Convertible notes

    334,895

    360,635

    348,150

    Preferred shares with warrants

    60,281

    65,570

    63,300

    Documentary investment agreement

    13,500

    9,000

    7,500

    8,982,209

    10,832,042

    8,043,151

    Current

    6,644,453

    8,390,606

    5,541,797

    Non-current

    $ 2,337,756

    $ 2,441,436

    $ 2,501,354

    (Continued)

    September 30,

    2025

    December 31,

    2024

    September 30, 2024 (Retrospectively

    Adjusted)

    NT$ NT$ NT$

    Financial liabilities held for trading

    Derivative instruments (non-designated hedges)

    Swap contracts

    $ 3,100,984

    $ 179,967

    $ 539,087

    Forward exchange contracts

    59,530

    63,785

    67,890

    Accumulator Contract

    3,574

    -

    -

    3,164,088

    243,752

    606,977

    Contingent considerations (Note 29)

    547,278

    589,117

    605,005

    3,711,366

    832,869

    1,211,982

    Current

    3,164,088

    324,278

    689,603

    Non-current

    $ 547,278

    $ 508,591

    $ 522,379

    (Concluded) At each balance sheet date, outstanding swap contracts not accounted for hedge accounting were as follows:

    Currency

    Maturity Period

    Notional Amount

    (In Thousands)

    September 30, 2025

    Sell JPY/Buy US$

    2025.10

    JPY633,220/US$4,327

    Sell MXN/Buy US$

    2025.10

    MXN296,736/US$16,000

    Sell MYR/Buy US$

    2025.10-2025.12

    MYR33,674/US$8,000

    Sell NT$/Buy US$

    2025.10-2026.10

    NT$110,981,927/US$3,624,000

    Sell US$/Buy KRW

    2025.10-2025.11

    US$44,000/KRW61,379,110

    Sell US$/Buy NT$

    2025.10-2025.11

    US$288,430/NT$8,660,636

    December 31, 2024

    Sell RMB/Buy US$

    2025.01

    RMB830,661/US$114,000

    Sell HKD/Buy US$

    2025.02-2025.03

    HKD22,830/US$2,939

    Sell JPY/Buy US$

    2025.01

    JPY1,035,320/US$6,994

    Sell MXN/Buy US$

    2025.01

    MXN923,715/US$45,000

    Sell NT$/Buy US$

    2025.01-2025.12

    NT$108,539,284/US$3,496,000

    Sell US$/Buy KRW

    2025.01-2025.03

    US$69,000/KRW99,002,500

    Sell US$/Buy NT$

    2025.01-2025.02

    US$254,440/NT$8,221,338

    September 30, 2024

    Sell RMB/Buy US$

    2024.10

    RMB803,438/US$114,000

    Sell HKD/Buy US$

    2024.11-2024.12

    HKD16,880/US$2,171

    Sell JPY/Buy US$

    2024.10

    JPY1,035,320/US$7,095

    Sell MXN/Buy US$

    2024.10

    MXN877,500/US$45,000

    Sell NT$/Buy US$

    2024.10-2025.10

    NT$104,156,491/US$3,381,000

    Sell US$/Buy JPY

    2024.10

    US$750/JPY107,580

    Sell US$/Buy KRW

    2024.10-2024.11

    US$44,000/KRW58,400,400

    Sell US$/Buy NT$

    2024.10-2024.11

    US$335,600/NT$10,686,966

    At each balance sheet date, outstanding forward exchange contracts not accounted for hedge accounting were as follows:

    Currency

    Maturity Period

    Notional Amount

    (In Thousands)

    September 30, 2025

    Sell RMB/Buy JPY

    2025.11

    RMB7,988/JPY165,000

    Sell RMB/Buy US$

    2025.11

    RMB127,665/US$18,000

    Sell EUR/Buy TND

    2025.10-2025.12

    EUR1,769/TND6,000

    Sell EUR/Buy US$

    2025.10-2025.12

    EUR1,359/US$1,500

    Sell NT$/Buy US$

    2025.10-2025.12

    NT$8,750,455/US$295,000

    Sell US$/Buy RMB

    2025.10-2025.11

    US$539,000/RMB3,831,290

    Sell US$/Buy EUR

    2025.11

    US$2,353/EUR2,000

    Sell US$/Buy JPY

    2025.10-2025.11

    US$128,070/JPY18,898,296

    Sell US$/Buy KRW

    2025.10

    US$34,500/KRW47,944,725

    Sell US$/Buy MYR

    2025.10

    US$3,000/MYR12,636

    Sell US$/Buy NT$

    2025.10-2025.11

    US$164,400/NT$4,970,007

    Sell US$/Buy SGD

    2025.10-2025.12

    US$16,700/SGD21,317

    December 31, 2024

    Sell RMB/Buy JPY

    2025.01

    RMB7,888/JPY165,000

    Sell RMB/Buy NT$

    2025.01-2025.03

    RMB10,000/NT$44,542

    Sell RMB/Buy US$

    2025.01

    RMB130,495/US$18,000

    Sell EUR/Buy TND

    2025.01-2025.12

    EUR7,074/TND24,000

    Sell EUR/Buy US$

    2025.01-2025.12

    EUR5,435/US$6,000

    Sell NT$/Buy US$

    2025.01-2025.02

    NT$3,545,010/US$110,000

    Sell US$/Buy RMB

    2025.01-2025.02

    US$436,000/RMB3,172,282

    Sell US$/Buy EUR

    2025.01

    US$3,165/EUR3,000

    Sell US$/Buy JPY

    2025.01-2025.02

    US$54,020/JPY8,335,356

    Sell US$/Buy KRW

    2025.01

    US$7,000/KRW10,071,340

    Sell US$/Buy MYR

    2025.01

    US$6,000/MYR26,758

    Sell US$/Buy NT$

    2025.01-2025.03

    US$81,610/NT$2,653,807

    Sell US$/Buy SGD

    2025.01-2025.03

    US$13,100/SGD17,506

    September 30, 2024

    Sell RMB/Buy JPY

    2024.10

    RMB8,033/JPY165,000

    Sell RMB/Buy US$

    2024.10

    RMB128,293/US$18,000

    Sell EUR/Buy CZK

    2024.10-2024.12

    EUR1,184/CZK30,000

    Sell NT$/Buy US$

    2024.10-2024.11

    NT$4,147,565/US$130,000

    Sell US$/Buy RMB

    2024.10

    US$327,500/RMB2,293,199

    Sell US$/Buy JPY

    2024.10-2024.12

    US$62,000/JPY8,887,995

    Sell US$/Buy MYR

    2024.10

    US$10,000/MYR42,177

    Sell US$/Buy NT$

    2024.10

    US$86,520/NT$2,768,922

    Sell US$/Buy SGD

    2024.10

    US$8,400/SGD10,907

    At each balance sheet date, outstanding accumulator contracts not accounted for hedge accounting were as follows:

    September 30, 2025

    Contract Unit

    Strike

    Knock-out

    Maturity

    Contract

    (Underlying Asset)

    (in shares) Price

    Price Currency

    Date

    Duration

    USD ACCU (AMZN UW) 21,500 194.95 243.40 USD 2026/7 1 year

    USD ACCU (MSFT UW) 9,750 447.32 537.22 USD 2026/7 1 year

    USD ACCU (META UW) 6,500 631.42 800.90 USD 2026/8 1 year

    Note: The Group has entered into equity accumulator contracts, with the underlying assets being the ordinary shares of foreign listed companies. The contract units represent the number of underlying shares that the Group is entitled to purchase during the contract term when the market price of the underlying shares is between the strike price and the knock-out price. If the market price of the underlying shares falls below the strike price, the Group will purchase a multiple of the agreed number of shares at the strike price. If the market price of the underlying shares is equal to or above the knock-out price, the contract will be terminated early.

  2. FINANCIAL ASSETS AT FAIR VALUE THROUGH OTHER COMPREHENSIVE INCOME (FVTOCI)

    September 30,

    2025

    December 31,

    2024

    September 30,

    2024

    NT$

    NT$

    NT$

    Investments in equity instruments

    $ 12,395,730

    $ 12,933,733

    $ 12,577,028

    Investments in debt instruments

    1,012,740

    1,025,760

    1,030,184

    $ 13,408,470

    $ 13,959,493

    $ 13,607,212

    a. Investments in equity instruments

    September 30,

    2025

    December 31,

    2024

    September 30,

    2024

    NT$

    NT$

    NT$

    Unquoted ordinary shares

    $ 12,322,610

    $ 12,846,151

    $ 12,478,934

    TIB quoted ordinary shares

    60,651

    72,774

    85,836

    Unquoted preferred shares

    12,469

    14,808

    12,258

    $ 12,395,730

    $ 12,933,733

    $ 12,577,028

    b. Investments in debt instruments

    September 30,

    2025

    December 31,

    2024

    September 30,

    2024

    NT$

    NT$

    NT$

    Unsecured cumulative subordinate corporate bonds

    $ 1,012,740

    $ 1,025,760

    $ 1,030,184

    The Group purchased 1,000 units of the abovementioned perpetual corporate bonds with par value of NT$1,000 thousand and the annual interest rate and effective interest rate was 3.5% and 3.2%, respectively.

  3. CREDIT RISK MANAGEMENT FOR INVESTMENTS IN DEBT INSTRUMENTS

    The Group's investment in unsecured cumulative subordinate corporate bonds is rated the equivalent of investment grade or higher and has low credit risk for impairment assessment.

    There was no significant increase in credit risk of such debt instrument since initial recognition leading to changes in interest rates and terms, and there was also no significant change in bond issuer's operation affecting the ability performing debt obligation. Therefore, no expected credit losses existed. The Group reviews changes in bond yields and other public information periodically and makes an assessment whether there has been a significant increase in lifetime Expected Credit Loss ("ECL") since initial recognition.

  4. TRADE RECEIVABLES, NET September 30, December 31, September 30, 2025 2024 2024 NT$ NT$ NT$

    At amortized cost

    Gross carrying amount $ 119,876,005 $107,294,445 $ 108,721,219 Less: Allowance for impairment loss 492,399 407,133 463,234

    119,383,606 106,887,312 108,257,985

    At FVTOCI 6,279,428 6,532,508 5,802,785

    $ 125,663,034 $113,419,820 $ 114,060,770

    1. Trade receivables

      1. At amortized cost

        The Group's average credit terms granted to the customers were 30 to 90 days. The Group evaluates the risk and probability of credit loss of trade receivables by reference to the Group's past experiences, financial condition of each customer, as well as competitive advantage and future development of the industry in which the customer operates. The Group then reviews the recoverable amount of each individual trade receivable at each balance sheet date to ensure that adequate allowance is made for possible irrecoverable amounts. In this regard, management believes the Group's credit risk was significantly reduced.

        The Group measures the loss allowance for trade receivables at an amount equal to lifetime ECLs. The expected credit losses on trade receivables are estimated using a provision matrix by reference to past default experience of the debtor and an analysis of the debtor's current financial position, adjusted for general economic conditions of the industry in which the debtors operate and an assessment of both the current as well as the forecast direction of economic conditions at each balance sheet date. As the Group's historical credit loss experience shows significantly different loss patterns for different customer segments, the provision matrix for expected credit loss allowance based on trade receivables due status is further distinguished according to the Group's different customer base.

        The Group writes off a trade receivable when there is information indicating that the debtor is in severe financial difficulty and there is no realistic prospect of recovery. For trade receivables that have been written off, the Group continues to engage in enforcement activity to attempt to recover the receivables due. Where recoveries are made, these are recognized in profit or loss.

        The following table details the loss allowance of trade receivables based on the Group's provision matrix.

        September 30, 2025

        Not Past Due

        Overdue

        1 to 30 days

        Overdue

        31 to 90 Days

        Overdue

        Over 91 Days

        Individually

        Impaired

        Total

        Expected credit loss rate

        0%

        0%-10%

        0%-70%

        1%-100%

        0%-100%

        NT$

        NT$

        NT$

        NT$

        NT$

        NT$

        Gross carrying amount

        $ 111,675,233

        $ 6,941,991

        $ 715,309

        $ 367,046

        $ 176,426

        $ 119,876,005

        Loss allowance (Lifetime ECLs)

        (25,229)

        (3,276 )

        (87,887)

        (220,357)

        (155,650)

        (492,399)

        $ 111,650,004

        $ 6,938,715

        $ 627,422

        $ 146,689

        $ 20,776

        $ 119,383,606

        December 31, 2024

        Not Past Due

        Overdue

        1 to 30 days

        Overdue

        31 to 90 Days

        Overdue

        Over 91 Days

        Individually

        Impaired

        Total

        Expected credit loss rate

        0%

        0%-10%

        0%-70%

        1%-100%

        0%-100%

        NT$

        NT$

        NT$

        NT$

        NT$

        NT$

        Gross carrying amount

        $ 98,650,390

        $ 6,644,672

        $ 1,431,402

        $ 472,061

        $ 95,920

        $ 107,294,445

        Loss allowance (Lifetime ECLs)

        (31,490 )

        (4,262 )

        (57,708)

        (229,042)

        (84,631 )

        (407,133 )

        $ 98,618,900

        $ 6,640,410

        $ 1,373,694

        $ 243,019

        $ 11,289

        $ 106,887,312

        September 30, 2024

        Not Past Due

        Overdue

        1 to 30 days

        Overdue

        31 to 90 Days

        Overdue

        Over 91 Days

        Individually

        Impaired

        Total

        Expected credit loss rate

        0%

        0%-10%

        0%-70%

        1%-100%

        0%-100%

        NT$

        NT$

        NT$

        NT$

        NT$

        NT$

        Gross carrying amount

        $ 100,143,440

        $ 7,369,964

        $ 609,420

        $ 327,593

        $ 270,802

        $ 108,721,219

        Loss allowance (Lifetime ECLs)

        (15,758 )

        (2,215 )

        (22,602 )

        (163,017 )

        (259,642 )

        (463,234 )

        $ 100,127,682

        $ 7,367,749

        $ 586,818

        $ 164,576

        $ 11,160

        $ 108,257,985

        The movements of the loss allowance of trade receivables for the nine months ended September 30, 2025 and 2024 were as follows:

        For the Nine Months

        Ended September 30

        2025

        2024

        NT$

        NT$

        Balance at January 1

        $ 407,133

        $ 332,756

        Remeasurement of loss allowance

        199,260

        123,353

        Amounts written off

        (105,583)

        (2,774)

        Effects of foreign currency exchange differences

        ( 8,411)

        9,899

        Balance at September 30

        $ 492,399

        $ 463,234

        2) At FVTOCI

        For the trade receivables due from certain customers, the Group decides whether or not to factor these trade receivables to banks without recourse based on the Group's demand of working capital. These trade receivables are classified as at FVTOCI because they are held within a business model whose objective is achieved by both the collection of contractual cash flows and the selling of financial assets.

        The following table details the loss allowance of trade receivables at FVTOCI based on the Group's provision matrix.

        September 30, 2025

        Not Past Due

        Overdue

        1 to 30 days

        Overdue

        31 to 90 Days

        Overdue

        Over 91 Days

        Total

        Expected credit loss rate

        0%

        0%

        0%

        0%

        NT$

        NT$

        NT$

        NT$

        NT$

        Gross carrying amount

        $ 6,175,146

        $ 92,040

        $ -

        $ 12,242

        $ 6,279,428

        Loss allowance (Lifetime ECLs)

        -

        -

        -

        -

        -

        $ 6,175,146

        $ 92,040

        $ -

        $ 12,242

        $ 6,279,428

        December 31, 2024

        Not Past Due

        Overdue

        1 to 30 days

        Overdue

        31 to 90 Days

        Overdue

        Over 91 Days

        Total

        Expected credit loss rate

        0%

        0%

        0%

        0%

        NT$

        NT$

        NT$

        NT$

        NT$

        Gross carrying amount

        $ 6,407,425

        $ 5,549

        $ 106,134

        $ 13,400

        $ 6,532,508

        Loss allowance (Lifetime ECLs)

        -

        -

        -

        -

        -

        $ 6,407,425

        $ 5,549

        $ 106,134

        $ 13,400

        $ 6,532,508

        September 30, 2024

        Not Past Due

        Overdue

        1 to 30 days

        Overdue

        31 to 90 Days

        Overdue

        Over 91 Days

        Total

        Expected credit loss rate

        0%

        0%

        0%

        0%

        NT$

        NT$

        NT$

        NT$

        NT$

        Gross carrying amount

        $ 5,628,359

        $ 142,545

        $ 14,420

        $ 17,461

        $ 5,802,785

        Loss allowance (Lifetime ECLs)

        -

        -

        -

        -

        -

        $ 5,628,359

        $ 142,545

        $ 14,420

        $ 17,461

        $ 5,802,785

    2. Transfers of financial assets－Unqualified for derecognition

      As stated above, the facilities granted by banks for the factoring agreements made between the Group's subsidiary and banks in April 2024 were EUR10,000 thousand. Pursuant to the agreements, banks have the right to request the Group's subsidiary to pay the unsettled balance if these trade receivables are not recovered at maturity. As the Group's subsidiary does not transfer substantially all risks and rewards relating to these trade receivables, it continues to recognize the full carrying amounts of these trade receivables and treats them as collateral for borrowings. Refer to Notes 20 and 35 for the carrying amount of trade receivables as collateral. However, after considering its working capital requirements, a subsidiary of the Group terminated its accounts receivable factoring agreement with the bank in August 2025.

      For the nine months ended September 30, 2025, the trade receivables accumulated factored and financed were NT$1,483,274 thousand and NT$924,709 thousand, respectively. For the nine months ended September 30, 2024, the trade receivables accumulated factored and financed were NT$1,334,412 thousand and NT$655,108 thousand, respectively. As of September 30, 2025, December 31, 2024 and September 30, 2024, the carrying amount of these trade receivables factored but not yet derecognized were NT$0 thousand, NT$391,030 thousand and NT$272,201 thousand, respectively. The carrying amount of the related liabilities were NT$0 thousand, NT$0 thousand and NT$48,716 thousand, respectively.

  5. INVENTORIES September 30,

    2025

    December 31,

    2024

    September 30, 2024 (Retrospectively

    Adjusted)

    NT$ NT$ NT$

    Finished goods $ 8,667,707 $ 11,567,645 $ 12,597,156

    Work in process 10,402,305 6,374,902 9,417,874

    Raw materials 37,768,173 34,600,519 38,053,349

    Supplies 4,448,606 3,544,043 3,495,075

    Raw materials and supplies in transit 1,340,851 1,226,829 1,521,964

    $ 62,627,642 $ 57,313,938 $ 65,085,418

    The cost of inventories recognized as operating costs for the three months and nine months ended September 30, 2025 and 2024 were NT$139,220,185 thousand, NT$133,218,590 thousand (after retrospectively adjusted), NT$386,663,916 thousand and NT$361,528,290 thousand (after retrospectively adjusted), respectively, which included reversals of inventory write-downs at NT$14,383 thousand, write-downs of inventories at NT$34,911 thousand, NT$322,817 thousand and NT$160,991 thousand, respectively.

  6. INVENTORIES RELATED TO REAL ESTATE BUSINESS

    September 30,

    December 31,

    September 30,

    2025

    2024

    2024

    NT$

    NT$

    NT$

    Land and buildings held for sale

    $ 758,615

    $ 647,039

    $ 694,567

    Construction in progress

    2,795,619

    3,219,955

    3,211,153

    $ 3,554,234

    $ 3,866,994

    $ 3,905,720

    As of September 30, 2025, December 31, 2024 and September 30, 2024, inventories related to real estate business of NT$3,072,303 thousand, NT$3,220,603 thousand and NT$ 3,211,795 thousand, respectively, are expected to be realized longer than twelve months.

    Construction in progress is mainly located on Lidu Road in Kun Shan, China. Refer to Note 35 for the carrying amount of inventories related to real estate business that had been pledged by the Group to secure bank borrowings.

  7. OTHER FINANCIAL ASSETS September 30, December 31, September 30, 2025 2024 2024 NT$ NT$ NT$

    Guarantee deposits $ 4,536,533 $ 4,956,488 $ 5,237,636 Time deposits with original maturity over three

    months 645,637 82,680 68,815

    Pledged time deposits (Note 35) 545,561 513,582 505,004 (Continued)

    September 30,

    December 31,

    September 30,

    2025

    2024

    2024

    NT$

    NT$

    NT$

    Others (Note 35)

    $ 97,314

    $ 125,172

    $ 114,760

    5,825,045

    5,677,922

    5,926,215

    Current

    1,625,856

    985,925

    1,101,517

    Non-current

    $ 4,199,189

    $ 4,691,997

    $ 4,824,698

    (Concluded)

  8. INVESTMENTS ACCOUNTED FOR USING THE EQUITY METHOD

    September 30,

    December 31,

    September 30,

    2025

    2024

    2024

    NT$

    NT$

    NT$

    Investments in associates

    $ 21,720,127

    $ 20,704,526

    $ 21,433,060

    Investments in joint ventures

    12,165

    12,357

    12,384

    $ 21,732,292

    $ 20,716,883

    $ 21,445,444

    1. Investments in associates

      1. Investments in associates accounted for using the equity method that were not individually material consisted of the following:

        Operating

        Name of Associate Main Business Location

        September 30,

        2025

        NT$

        December 31,

        2024

        NT$

        September 30,

        2024

        NT$

        Yann Yuan Investment Co., Ltd. Engaged in investing activities R.O.C.

        $ 11,736,396

        $ 10,504,931

        $ 11,524,390

        ("Yann Yuan")

        ChipMOS Technologies Inc.

        Engaged in the packaging and

        R.O.C.

        2,874,371

        2,953,079

        2,929,764

        ("ChipMOS")

        testing of semiconductors

        Hung Ching Development &

        Engaged in the development,

        R.O.C.

        2,460,477

        2,503,989

        2,312,537

        Construction Co. ("HC")

        construction and leasing of real

        estate properties

        M-Universe Investments Pte. Ltd. Investment company

        Singapore

        2,268,629

        2,325,475

        2,244,394

        MACHVISION,INC. Engaged in the manufacturing and

        R.O.C

        2,093,627

        2,058,978

        2,033,481

        ("MACHVISION")

        trading of non-contact optical

        inspection equipment

        Chipletz, Inc. ("CHIPLETZ")

        Fabless substrate design house

        U.S.A.

        201,256

        255,384

        254,560

        Deca Technologies, Inc. ("DECA")

        Holding company and the group

        U.S.A.

        70,559

        58,100

        55,973

        engaged in the development of wafer level packaging and interconnect technology

        Questyle Audio Engineering Co., Ltd.

        Engaged in the research and

        China

        14,812

        17,798

        63,444

        ("QUESTYLE")

        development on technology and

        sales of electronic products,

        digital products, audio

        equipment and spare parts,

        domestic trading, import and

        export business

        Goodcare Holdings Inc.

        Holding company, engaged in

        R.O.C.

        -

        26,792

        14,517

        ("GOODCARE")

        business of investment,

        long-term care and home care

        services

        Hung Ching Kwan Co. ("HCK")

        Engaged in the leasing of real estate

        R.O.C.

        (95,274)

        (83,098)

        (78,295)

        properties

        21,624,853

        Add: Credit balance of investments

        20,621,428

        21,354,765

        method reclassified to other

        non-current liabilities 95,274

        83,098

        78,295

        $ 21,720,127

        $ 20,704,526

        $ 21,433,060

        Carrying Amount

        ("MU")

        accounted for using equity

      2. At each balance sheet date, the total percentages of ownership held by the Group were as follows:

        September 30,

        2025

        December 31,

        2024

        September 30,

        2024

        Yann Yuan

        27.94%

        27.94%

        27.94%

        ChipMOS

        11.27%

        10.85%

        10.85%

        HC

        26.22%

        26.22%

        26.22%

        MU

        42.23%

        42.23%

        42.23%

        MACHVISION

        23.08%

        23.08%

        23.08%

        CHIPLETZ

        18.74%

        18.74%

        18.74%

        HCK

        27.31%

        27.31%

        27.31%

        QUESTYLE

        6.67%

        6.67%

        6.67%

        DECA

        17.82%

        17.84%

        17.84%

        GOODCARE

        -

        49.00%

        49.00%

      3. During the nine months ended September 30, 2025, the exercise of employee share options issued by DECA led the Group's percentage of ownership in DECA decreased to 17.82%. During the nine months ended September 30, 2025, ChipMos repurchased its ordinary shares and led the Group's percentage of ownership in ChipMos increased to 11.27%. The Group considered it still has significant influence over the aforementioned associates since it involves in making significant decisions by participating in the board meetings of those associates.

      4. At the end of 2024, the Group's subsidiary, USISH, evaluated the recoverable amount of its investment in QUESTYLE by using the value in use. The recoverable amount was lower than the carrying amount and, therefore, the Group recognized an impairment loss of NT$42,143 thousand under the line item of other gains and losses. The value in use of its investment in QUESTYLE was the present value of cash flow projections made by QUESTYLE's management with a discount rate of 11.65%.

      5. In August 2025, the Group's subsidiary, ASE SOCIAL, acquired 5,000 thousand ordinary shares of GOODCARE with NT$50,000 thousand in cash. After the acquisition, the percentage of the Group's ownership in GOODCARE increased to 67.21% and, therefore, the Group obtained control over GOODCARE.

      6. Fair values (Level 1) of investments in associates based on quoted prices in an active market are summarized as follows:

        September 30,

        December 31,

        September 30,

        2025

        2024

        2024

        NT$

        NT$

        NT$

        ChipMOS

        $ 2,327,857

        $ 2,473,841

        $ 2,959,140

        HC

        $ 1,743,196

        $ 2,601,069

        $ 2,347,139

      7. Aggregate information of associates that are not individually material

        For the Three Months For the Nine Months Ended September 30 Ended September 30

        The Group's share of:

        2025 2024 2025 2024 NT$ NT$ NT$ NT$

        Net income

        $ 294,005

        $ 484,761

        $ 557,275

        $ 1,003,789

        Other comprehensive income

        (loss)

        $ 1,888,218

        $ (695,906)

        $ 1,096,919

        $ 812,839

        Total comprehensive income

        (loss)

        $ 2,182,223

        $ (211,145)

        $ 1,654,194

        $ 1,816,628

    2. Investments in joint ventures

      1. Investments in joint ventures that was not individually material and accounted for using the equity method consisted of the following:

        Operating

        September 30,

        December 31,

        September 30,

        Location

        2025

        2024

        2024

        R.O.C

        NT$

        $ 12,165

        NT$

        $ 12,357

        NT$

        $ 12,384

        Carrying Amount

        Name of Joint Venture Main Business

        MUtek Electronics Co., Ltd. ("MUtek")

        Engaged in the production and wholesale of electronic products

      2. At each balance sheet date, the percentages of ownership held by the Group's subsidiary were as follows:

        September 30,

        2025

        December 31,

        2024

        September 30,

        2024

        MUtek 49.00% 49.00% 49.00%

      3. Aggregate information of joint ventures that were not individually material

        For the Three Months For the Nine Months Ended September 30 Ended September 30

        The Group's share of: Total net loss and

        2025 2024 2025 2024 NT$ NT$ NT$ NT$

        comprehensive loss $ (60) $ (139) $ (191) $ (2,993)

  9. PROPERTY, PLANT AND EQUIPMENT

The carrying amounts of each class of property, plant and equipment were as follows:

September 30,

2025

December 31,

2024

September 30, 2024 (Retrospectively

Adjusted)

NT$ NT$ NT$

Land and land improvements

$ 17,965,409

$ 17,570,624

$ 14,023,514

Buildings and improvements

141,427,194

121,588,485

107,231,619

Machinery and equipment

168,963,447

137,430,483

127,253,818

Other equipment

3,141,958

3,203,839

3,033,172

Construction in progress and machinery under

installation 65,696,814

32,738,040

32,344,024

$ 397,194,822

$ 312,531,471

$ 283,886,147

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ASE Technology Holding Co. Ltd. published this content on November 14, 2025, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on November 14, 2025 at 09:36 UTC.