2Q 2020 Earnings Release

July 2020

DISCLAIMER

Financial results for 2Q 2020 are provisional and subject to change according to the outside independent auditors' review.

This presentation contains forward-looking statements that are based on our current expectation, assumptions, estimates and projections about S-OIL and the refinery industry. We caution you not to place undue reliance on any forward- looking statement which may involve various risks and uncertainties.

Please also note that although we believe that the assumptions on which our forward-looking statements are based are reasonable, any of those assumptions could prove to be inaccurate, and, as a result, the forward-looking statements based on those assumptions could be incorrect. Except as required by law, we do not undertake to release the results of any revisions of these forward-looking statements to reflect future events or circumstances.

2

2Q 2020 Performance

2Q 2020 Financial Result ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ 4 Financial Status ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ 5 Performance by Business Segment∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ 6 CAPEX & Operation ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ 7

Market Environment & Outlook

Refining ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙

∙ ∙ ∙ ∙ ∙ ∙

8

Contents

Petrochemical - Aromatics ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙

∙ ∙ ∙ ∙ ∙ ∙

9

Petrochemical

-

Olefins

∙ ∙

10

Lube Base Oil

∙ ∙ ∙ ∙ ∙ ∙ ∙

∙ ∙

∙ ∙

∙ ∙

∙ ∙

∙ ∙ ∙ ∙

∙ ∙

∙ ∙

∙ ∙ ∙

∙ ∙

11

Appendices

Summarized Income Statement ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ 12 Quarterly Trend of Sales by Region ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ 13 Efforts and Activities in ESG ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ 14 S-OIL'sPetrochemical Product & Value Chain ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ 15 Long-termMargin Trend ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ ∙ 16

2Q 2020 Financial Result

Revenue

(Unit: bil. Won)

6,257.3 6,234.5 6,476.2

Operating Income

(Unit: bil. Won)

230.7

-1.4%

3.7%

9.5

-164.3

Income before Tax

(Unit: bil. Won)

74.1 74.8

5,198.4

3,451.8

70.1

69.1

-90.5

0.1%

-4.8%

-19.4%

-195.8

-156.5

66.5

67.0

65.0

2Q '19

3Q '19

4Q '19

1Q '20

2Q '20

Revenue

Sales Volume (mil. bbl)

Decreased 33.6% QoQ due to oil price drop

  • Quarterly average selling price: 37.6%, QoQ
  • Sales volume: 6.4%↑, QoQ

-1,007.3

2Q '19

3Q '19

4Q '19

1Q '20

2Q '20

Operating Income

OP Margin

Increased 843.0 bil. Won QoQ

due to the decrease of inventory-

related loss

  • Inventory-relatedloss: 169 bil. Won

(Inventory-related loss in 1Q '20: 721 bil. Won)

  • Singapore complex margin($/bbl): 2Q -1.7 (2.3↓, QoQ)

-1,209.3

2Q '19

3Q '19

4Q '19

1Q '20

2Q '20

Increased 1,052.8 bil. Won on the reduction of operating loss

  • F/X gain: 34 bil. Won
    (1Q '20 F/X loss: 141 bil. Won)
  • /$ rate: 2Q-end 1,200.7 (21.9, QoQ)

4

Financial Status

Assets

Liabilities & Equities

(Unit: bil. Won)

15,955

16,333

16,318

16,835

(Unit: bil. Won)

15,955

16,333

16,318

16,835

15,087

15,087

1,131

1,430

723

1,216

2,352

3,239

598

3,150

3,457

4,781

4,508

3,457

2,833

3,401

4,330

3,401

3,555

4,147

3,771

3,475

2,935

2,825

7,969

9,741

10,139

10,093

10,060

1,370

4,234

4,299

2,191

1,552

2,513

6,843

6,469

6,497

5,584

5,526

711

555

2017-end

2018-end

2019-end

1Q'20-end

1H'20-end

2017-end

2018-end

2019-end

1Q'20-end

1H'20-end

Cash

Tangible asset

A/R & inventory

Others

Equity

S-T borrowing

L-T borrowing

Other liabilities

18.8%

14.5%

3.9%

1.0%

3.1%

2.2%

-19.4%

-34.8%

-31.5%

-58.3%

2017

2018

2019

1Q'20

1H'20

Return on equity

Return on capital employed

Financial Highlights

7,150

5,625 6,137 5,854

128.0%

105.9%

2,653 86.9% 94.5%

38.8%

'17-end'18-end'19-end1Q'20-end1H'20-end

Net debt (bil. Won) Net debt to equity

  • Net debt: Short-term borrowing + Long-term borrowing
    • Lease obligation - Cash

219 220

-60

-19

-1,065

2Q'19 3Q'19 4Q'19 1Q'20 2Q'20

EBITDA (bil. Won)

  • EBITDA: Income before tax + Net interest expense
    • Depreciation(Excluding catalyst amortization cost)

5

Performance by Business Segment

Segment

(Unit: bil. Won)

2Q '20

1Q '20

QoQ

2Q '19

YoY

Revenue

2,591.5

3,956.4

34.5%↓

5,001.8

48.2%↓

Refining

Operating Income

-358.7

-1,190.0

-136.1

(Margin)

(-13.8%)

(-30.1%)

(-2.7%)

Revenue

589.1

808.1

27.1%↓

911.2

35.3%↓

Petrochemical

Operating Income

91.1

66.5

37.1%↑

4.2

2,069.0%↑

(Margin)

(15.5%)

(8.2%)

(0.5%)

Revenue

271.3

433.9

37.5%↓

344.3

21.2%↓

Lube Base Oil

Operating Income

103.3

116.2

11.1%↓

41.4

149.5%↑

(Margin)

(38.1%)

(26.8%)

(12.0%)

Revenue

3,451.8

5,198.4

33.6%↓

6,257.3

44.8%↓

Total

Operating Income

-164.3

-1,007.3

-90.5

(Margin)

(-4.8%)

(-19.4%)

(-1.4%)

Operating Income Trend

305

81

170102 43

151 47

Refining

Petrochemical

Lube Base Oil

300

91151 28

41

100 79 52

21 96

91 103

17

4

66 116

0

-300

-136

-107

-359

-600

-532

-900

-1,200

-1,190

2018.2Q

2018.3Q

2018.4Q

2019.1Q

2019.2Q

2019.3Q

2019.4Q

2020.1Q

2020.2Q

6

CAPEX & Operation

CAPEX & Depreciation

(Unit: bil. Won)

2019

2020 Plan

1H '20

(Unit: bil. Won)

604

569

Land acquisition*

79.1

5.5

-

350

287

294

Upgrade & Maintenance

383.7

424.2

122.9

Others

185.3

60.1

16.8

2,505

1,965

1,079

Total CAPEX

648.1

489.8

139.8

648

490

Depreciation

569.1

604.3

284.7

2016

2017

2018

2019

2020(P)

CAPEX

Depreciation

* For future project

Maintenances

Utilization Rate

2018

2019

1H '20

3Q '20

2018

2019

1Q'20

2Q'20

#2 CDU

#3 CDU

-

#1 CDU

CDU

99.1%

95.4%

93.4%

99.8%

CFU

Refining

#1,2 RFCC

#2 RFCC

RFCC/HYC

94.2%

86.8%

96.2%

89.6%

HYC FH

HYC FH

(Jun.~Jul.)

PX Plants

81.2%

75.6%

98.5%

95.7%

PP/PO

Petrochemical

#1 PX

#2 PX

(Jun.~Jul.)

PP/PO Plants

65.6%

75.4%

94.1%

75.7%

Lube Base Oil

-

HYC SH

-

#1 HDT

Lube Plants

92.3%

88.7%

93.5%

80.1%

7

Market Environment & Outlook - Refining

2Q '20 Market Environment

Singapore Margin

Refining margins tumbled into negative territory due to the

3.9

GRM-Variable Cost

(Unit:$/bbl)

massive product inventories built up in 1Q.

However, demand is recovering thanks to the easing of

0.9

0.6

lockdowns and stimulus measures in major countries.

-0.2

World Product Demand Compared with Dec-19(Unit: mmb/d)

0 -5-10-15-20-25

Jan-20Feb-20Mar-20Apr-20May-20Jun-20

-1.7

2Q '19

3Q '19

4Q '19

1Q '20

2Q '20

Global Net Capacity Increase vs. Demand Growth

3Q '20 Outlook

1.59 1.35

1.04

0.46

(Unit: mmb/d)

1.35

6.29 ~ 6.81

0.87

0.69

0.13

Refining margins will continuously recover amid easing of

COVID-19 related restrictions.

-10.04 ~ -6.79

2017

2018

2019

2020(E)

2021(E)

Capacity Addition

Capacity Closure

Demand Growth

Net Capacity Increase

Source: IEA, OPEC, EIA, FACTS Global Energy, Wood Mackenzie, The Company

8

Market Environment & Outlook - Aromatics

2Q '20 Market Environment

  • Para Xylene spread narrowed due to oversupply from new plants while operating rates were reduced in the region.
  • Benzene spread plummeted due to sluggish downstream demand and high inventory in China.

3Q '20 Outlook

  • Para Xylene & Benzene spread will remain weak due to slower-than-expecteddownstream demand recovery and high inventory levels.

Product Spread (Vs. Naphtha)

Para Xylene

Benzene

(Unit:$/ton)

349

300

242

249

204

185

84

132

174

98

2Q '19

3Q '19

4Q '19

1Q '20

2Q '20

PX & PTA Net Capacity Expansion

(Unit: k tpa)

6,300

6,700

6,590

4,601

3,377

1,785

2,000

1,500

1,538

800

2018

2019

2020(E)

2021(E)

2022(E)

PX Net Capacity

PTA Net Capacity

9

Source: Wood Mackenzie, IHS, The Company

Market Environment & Outlook - Olefins

2Q '20 Market Environment

  • Polypropylene(PP) spread widened as Chinese PP market remained relatively stable on robust demand from personal protective equipment amid plunge of feedstock naphtha price.
  • Propylene Oxide(PO) spread slightly increased on concentrated maintenances in the region despite bearish downstream demand due to ongoing pandemic.

3Q '20 Outlook

  • PP spread is expected to stay at a decent level on demand from fiber and packaging sector amid reduced supply due to heavy maintenance schedule in China.
  • PO spread would continue moving around a current healthy level as regional plants begin to resume operation from regular maintenances amid gradual downstream Polyol-PU demand recovery from COVID-19.

Product Spread (Vs. Naphtha)

PP

PO

(Unit:$/ton)

635

642

576

632

639

531

518

526

408

401

2Q '19

3Q '19

4Q '19

1Q '20

2Q '20

Increase of PP Capacity and Demand (Asia & ME)

(Unit: k tpa)

5,645

6,145

2,527

2,896

3,279

3,053

2,211 2,371

2019 2020(E) 2021(E) 2022(E)

PP Capacity

PP Demand

Source: ICIS, IHS, The Company

10

Market Environment & Outlook - Lube Base Oil

2Q '20 Market Environment

Product Spread (Asia)

  • Overall LBO spreads maintained a healthy level on low feedstock prices, despite global lockdowns.

LBO-HSFO(Unit:$/bbl)

51.3 50.6

41.5

26.3 23.9

2Q '19 3Q '19 4Q '19 1Q '20 2Q '20

3Q '20 Outlook

LBO Capacity Addition

(Unit: kbd)

65.8

53.3

  • LBO spreads are expected to be supported by a gradual demand recovery amid stable crude oil prices.

16.0

14.8

5.9

2018

2019

2020(E)

2021(E)

2022(E)

Group II

Group III

Source: ICIS, Argus, The Company

11

Appendix 1

Summarized Income Statement

(Unit: bil. Won)

2Q '20

1Q '20

QoQ

2Q '19

YoY

Revenue

3,451.8

5,198.4

33.6%↓

6,257.3

44.8%↓

Operating Income

-164.3

-1,007.3

-

-90.5

-

(Margin)

(-4.8%)

(-19.4%)

-

(-1.4%)

-

Finance & Other Income

7.3

-202.2

-

-106.5

-

- Net Interest Gain

-37.7

-42.9

-

-42.4

-

- Net F/X Gain*

34.4

-141.5

-

-66.5

-

- Others

10.6

-17.8

-

2.4

-

Equity Method Gain

0.5

0.2

128.6%↑

1.3

59.9%↓

Income before Tax

-156.5

-1,209.3

-

-195.8

-

Net Income

-66.9

-880.6

-

-147.4

-

* Including gain/loss from F/X derivatives for hedging

12

Appendix 2

Quarterly Trend of Sales by Region

(Unit: k bpd, %)

2Q '19

3Q '19

4Q '19

1Q '20

2Q '20

Sales Total

731

728

762

714

760

Domestic

338

349

371

340

358

Export

393

379

391

374

401

(% in Total)

(53.8%)

(52.0%)

(51.2%)

(52.3%)

(52.9%)

China

22.5%

16.4%

16.9%

15.3%

31.5%

Japan

18.9%

18.0%

17.2%

22.9%

16.0%

Australia

8.3%

10.7%

8.2%

8.8%

14.1%

South East Asia

12.9%

16.1%

19.1%

10.5%

9.9%

Singapore

10.6%

11.3%

2.9%

14.5%

6.1%

Taiwan

2.2%

1.9%

8.0%

0.6%

4.8%

USA

5.8%

7.8%

7.8%

10.8%

2.1%

13

Appendix 3

Efforts & Activities in ESG

Environment Management

Social Contribution

Air Pollutant Emissions

Waste Recycling

Performance in

Green

Participants in

Volume & Intensity

Social Activities

Purchasing

Sharing Campaign

(Unit: KT)

(Unit: KT)

(Unit: ppm)

(Unit: billion won)

(Unit: billion won)

(Unit: Persons)

Legal

40.1

7.6

32.5

Standard

84.8

6.1

6.9

7.0

1,889

1,871

1,845

5.3

24.1

3.5

72.3

16.6

15.7

15.5

SOx 82.0

52.7

NOx

29.6

4.5

2017

2018

2019

2017

2018

2019

2017

2018

2019

2017

2018

2019

2017

2018

2019

2017

2018

2019

Certification ISO 14001

Operating ISO 14301 -

The social contribution activity called 'Sunshine Sharing' to

- Environmental

Environmental performance

create a bright and warm society with topics including hero,

management system

evaluation system

isolated neighbor, environment, and Local community

Governance

Assessment by external bodies in 2019

  • Establish transparent and sound corporate governance through organizing BOD and sub-committees with Diversity, Independence, and rich Expertise and ensuring Checks and Cooperation
  • Well organized Compliance system & Ethics management

Acquired A + grade

The first local manufacturing

of governance for 4

Company to acquire ISO

consecutive years

19600 - Compliance

since 2016

management system

Listed in Dow Jones

2019 Best

Winner of 2019

Sustainability

Governance

Korea Accounting

Indices (DJSI)

Company from

Grand Prize

World for 10

KCGS

consecutive years

14

Appendix 4

S-OIL's Petrochemical Product & Value Chain

The Company's

end product

PX

(1.85 Mil. ton/y)

PTA / DMT

SM

Applications

Polyester

Polyester fiber, Polyester film, PET Resin for bottles

PS, ABS, SBR Electronics packing, Building materials, Automobile, Tires

Benzene

(672,000 ton/y)

Propylene

(910,000 ton/y)

Cyclohexane

Alkyl Benzene

Phenol,

Acetone

AN

Octanol,

Butanol

Acrylic Acid

PP

(300,000 ton/y)

PO

(405,000 ton/y)

Caprolactam

PC,

BPA Epoxy

Resin

Polyol PU

PG,

Glycol Ether

Nylon fiber, Carpet, Engineering Plastics

Powder, Detergent

Flooring material, Electronic applications, Paint

Acrylic fiber, Synthetic resin (ABS, SAN)

Adhesive, Plasticizer

Adhesive, Paint

Film for packaging, Tape, Clothing, Home appliances, Automobile

Insulation material for buildings, Home appliances, Automobile

Cosmetics, Additives for beverage, Textile, Solvent, Detergent

15

Appendix 5

Long-term Margin Trend

Refining

Petrochemical

Lube base Oil

Singapore Complex Margin

Product spread (Vs. Naphtha)

Product spread

$/ton

GRM-Variable Cost(R)

Para Xylene(L)

Propylene(L)

ICIS150N-HSFO380(L)

$/bbl

800

16.0

604

600

550

554

552

12.0

517

454

420

420

434

409

405

469

369

378

383

360

400

386

359

359

351

352

8.0

416

332

421

312

308

316

372

341

363

296

339

357

298

338

255

312

228

296

281

257

251

204

200

246

249

4.0

6.4

7.3

5.3

4.6

3.4

3.9

3.1

3.3

2.4

2.0

0.5

1.5

1.5

0.6

0

0.0

-1.7

-200

-4.0

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

1Q20

2Q20

16

Thank You

S-OIL IR Team

Contact : IRteam@s-oil.com

Winner of 2019 Korea Accounting Grand Prize

S-OIL was awarded 2019 Korea Accounting Grand Prize for enhancing accounting transparency.

S-OIL, the only company named to DJSI World for the 10th consecutive year among Asia Pacific refiners and won 2019 Best Governance Companies from KCGS.

Attachments

Disclaimer

S-Oil Corporation published this content on 24 July 2020 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 24 July 2020 01:35:06 UTC