Presentation - Result for Q3 FY2021

Results for

Third Quarter of FY2021

(Ended September 30, 2021)

November 4, 2021

SUMCO Corporation

（Code：3436）

（LEI：353800SUSRUOM0V6KU92）

SUMCO CORPORATION

3Q-2021 Results	1
November 4, 2021

Notes Regarding the Forecasts

This material is prepared for the purpose of continuous disclosure to general shareholders and investors and will not constitute an offer or solicitation of securities of the Company in any states or jurisdictions.

The estimate, expectation, forecast and other future information is prepared based on the information which is available for the Company as of today and on certain assumptions and qualifications (which includes our subjective judgment) and the actual financial performance or result may be substantially different from such future information contained in the material due to risk factors including domestic and global economic conditions, trend of semiconductor market and foreign exchanges.

SUMCO CORPORATION

3Q-2021 Results	2
November 4, 2021

Contents

• Summary and Market Environment
• Offering Summary
• 3Q-2021Consolidated Business Result
• 1. Summary of Consolidated Business Result
  2. Analysis of Changes in Operating Income
  3. Consolidated Balance Sheet
  4. Consolidated Cash-Flow
• FY2021 Consolidated Business Forecast
• 1. Consolidated Business Forecast
  2. Analysis of Changes in Operating Income
• Reference Materials

SUMCO CORPORATION

3Q-2021 Results	3
November 4, 2021

Summary and

Market Environment

Mayuki Hashimoto

Representative Director,

CEO & Chairman of the Board

SUMCO CORPORATION

3Q-2021 Results	4
November 4, 2021

1-1. Summary

■ 3Q-2021 Consolidated Business Result		(Billions of Yen)
	3Q-2021	3Q-2021	Change
	Forecast	Actual
Net Sales	86.0	86.7	+0.7
Operating Income	12.5	14.8	+2.3
Ordinary Income	12.0	14.2	+2.2
Net Income (Note)	9.0	10.6	+1.6
Exchange Rate (Yen/US$)	110.0	110.0	+0.0
■ 4Q-2021 Consolidated Business Forecast	(Billions of Yen)
	3Q-2021	4Q-2021	Change
	Actual	Forecast
Net Sales	86.7	88.5	+1.8
Operating Income	14.8	14.0	(0.8)
Ordinary Income	14.2	12.5	(1.7)
Net Income (Note)	10.6	9.0	(1.6)
Exchange Rate (Yen/US$)	110.0	113.0	+3.0
(Note) Net income attributable to owners of the parent
SUMCO CORPORATION	November 4, 2021		5
	3Q-2021 Results

1-2. Shareholder Return (Forecast)

				FY2017	FY2018	FY2019	FY2020	FY2021
				(Dec-2017)(Dec-2018)(Dec-2019)(Dec-2020)	(Dec-2021)
Dividends per share for		Interim	10	30	25	18		17
	Year-end	18	32	10	9		19
	common stocks (Yen)
		Total	28	62	35	27		36
	Dividends payment		Interim	2.9	8.7	7.3	5.2		4.9
		Year-end	5.2	9.3	2.9	2.6		6.6
	(Billions of Yen)
		Total	8.2	18.1	10.2	7.8		11.5
	Dividend ratio (%)	Total	30.4%	31.0%	31.0%	30.9%	(*1)	30.4%
	Share Buyback
	Amount （Billions of Yen)	Total	-	-	3.3	2.5	(*2)	-
	Ratio (%)	Total	-	-	10.0%	9.8%		-
	Total Return Ratio (%)	Total	30.4%	31.0%	41.0%	40.7%		30.4%

*1. Dividend ratio for FY2021 is caluculated by net income per share (118.61 yen) and dicvidend (36 yen).

*2. Share buyback for FY2021 will not be implemented.

SUMCO CORPORATION

3Q-2021 Results	6
November 4, 2021

 Pricing

2-1. Market Environment

■ 3Q-2021

 Volume - Supply and demand tightness continued for 300 mm wafers for memory in addition to those for logic. Supply fell short of demand despite efforts to boost production by introducing AI for improved productivity

- Supply of 200 mm and smaller wafers was tight due to strong demand for automotive, consumer and industrial

- Existing long-term agreement prices are being kept

Rises in spot prices for both 300 mm wafers and 200 mm and smaller wafers are taking hold

■ 4Q-2021 Forecast
	Volume	- In the face of continued supply and demand tightness for 300 mm wafers for logic and memory,
		we will be unable to meet calls to raise production
		- Supply of 200 mm and smaller wafers will continue falling short of demand
	Pricing	- Existing long-term agreement prices will be kept. Spot prices will continue rising

■ Green-field Investment

 Capital investment in new buildings, utility equipment and manufacturing equipment was decided in order to make possible ongoing phased production increases for 300mm leading-edge silicon wafers

Location	Classification	Investment Amount (billion yen)		Schedule
		Subtotal	Total	G. Total	Start Construction	Start Production	Full Operation
Imari, Saga	A plant bldg and utility	78.6	201.5		at the beginning	Phased	in 2Q25
（SUMCO）	Wafer mfg equipment	122.9
	228.7	implementation
Omura, Nagasaki	A plant bldg and utility	16.5		at the end
27.2		of 2022	from 2H23
（SUMCO TECHXIV)	Wafer mfg equipment	10.7			of 2023

SUMCO CORPORATION

3Q-2021 Results	7
November 4, 2021

2-2. 200mm Wafer Trend

(K wafres/month)

8,000
6,000
4,000
2,000	2014	2015	2016	2017
	2018	2019	2020	2021
0	1Q	2Q	3Q	4Q

(Source： SUMCO estimation)

SUMCO CORPORATION

3Q-2021 Results	8
November 4, 2021

2-3. 300mm Wafer Trend
(K wafers/month)
8,000
6,000
4,000
2,000	2014	2015	2016	2017
	2018	2019	2020	2021
0	1Q	2Q	3Q	4Q

		(Source： SUMCO estimation)
SUMCO CORPORATION	November 4, 2021	9
	3Q-2021 Results

2-4. Customer 300mm Wafer Inventory Trend

Volume（Index）			Turnover days（Index）
Input volume	Purchase volume	Customer inventory	Turnover days

14/3	6	9	12	15/3	6	9	12	16/3	6	9	12	17/3	6	9	12	18/3	6	9	12	19/3	6	9	12	20/3	6	9	12	21/1	2	3	4	5	6	7	8	9
																														(Source： SUMCO estimation)

SUMCO CORPORATION

3Q-2021 Results	10
November 4, 2021