Slide 1: 2023.1Q Earnings Briefing
2023.1Q 실적발표 EARNINGS BRIEFING May 2023
Slide 2: Disclaimer
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Slide 3: Business Highlights
Business Highlights 2023.1 EARNINGS BRIEFING We SK inc. 5 DHS +1.9% QoQ, A5.5% YoY, EBITDA +3.4% QoQ, A49.3% YoY + E&S SMP SotA| SS AX GAM AY o/s 4,693 one , 4,349 ’ Naa age 1,236 1,006 999 EBITDA 1Q22 2Q22 3Q22 *E8S, HS, SEE, HElAISACIC Bat 2A 627 606 4Q22 1Q23 SSAt At AAS TA CHY] SSPE! YSt SOAS AS
Slide 4: 32.70 30.03 8.89% 1.13 2.99 △62.23% 0.01 3.26 △99.55% 1.64 .05 56.27% 1.12 0.58
32.70 30.03 8.89% 1.13 2.99 △62.23% 0.01 3.26 △99.55% 1.64 1.05 56.27% 1.12 0.58 92.91% 0.99 0.80 24.39% 19.14 16.26 17.72% 0.38 1.65 △77.26% 0.16 1.38 △88.64% 0.01 0.92 △98.79% △0.64 0.35 적자전환 △0.62 0.41 적자전환 4.37 4.28 2.22% 0.49 0.43 14.43% 0.42 0.33 28.72% 2.45 2.50 △2.04% 0.05 0.04 22.63% 0.01 0
Slide 5: 1Q23 Results: SK E&S
We 1Q23 (Wow he ost > SK E&S 2023.10 EARNINGS BRIEFING SK Inc. ~ aE * * oo SMP 2etAl] Sst Sat, BASE StcHot SI7p Mol] AHO] ASI] Chy] Szt Ast — SKE&S SMole! — 0) Highlights [etl] sored 640 5 1023 SHOA2 SH7| ASS YS WZ Freeport LNG 52] AHH O|S S17}24~yey S]S0}| Hat Sx} ASE + 1023 HH +41% QoQ, A22% YoY 4
Slide 6: 1Q23 Results: CDMO business
1023 HYMA St : SKEET We 2023.10 EARNINGS BRIEFING SK Inc. ABL AE 49 BAe 187] WA42 AAS AIOLY, 71Z Core ME Zt Upo|weayol Sey BW Warsy] Sa ASS — SKBHIZ Yeol} 0) Highlights Tete] etal 24 6 CHSSAJOFA fe) SLY AIS A AAS 1Q23 AAPA + THe|2| Seol C2} S24 CDMO SSACe® ASB AAA ASt 15 5 5 o Product Offering Ct2ts
Slide 7: 1Q23 Results: SiC wafer business
1023 BYLA HS: SKAEE sou.soeannes eens SRR. Wafer $2 GAS SB] Al AEE VS AIS SALSIROL AA YSOR OS ofet — SKE EBITDA — apopat2te 0) Highlights = Bz019 0 1023, BEA] St opStol| Sopa BI] A/F J]Et eave 35 Sz se W ch} ls Sey He Aa . a 251 235 O# +4% YoY, EBITDA Flat YoY 219 219 © 300mm/200mm Bz EY} 242+ YoY A
Slide 8: 1Q23 Results: semiconductor materials
We SK inc. 2023.1 EARNINGS BRIEFING ATE HIE OFS SCH SZ, AY Ate! IS! S}2foH MPS SAA AQ zow MAH] Az ZA — QE|2|42 EBITDA — apopatoty) 0) Highlights a BHoly 0 1Q23, HAt IPSS OfetOl] CE SPA Troy SSI. conven Eb, Hais{M/PR-S APAICH DME AIS OS Bt AIS S . ” 135 140 126 OH A11% YoY, EBITDA A27% YoY 120 + SAIA
Slide 9: 1Q23 Results: IT services (C&C)
1Q23 AMAA ost : ITAHJA i (C&C) 2023.1 EARNINGS BRIEFING she TAHA ABS SAVE S AEA ASA FP, Aa Ae SSW SS — ITHHIA YHO/S | opto} wer — 0) Highlights O 1Q23, SetPESt C[z|B Wee Ate Sie AS] CH) HE SI ALS Essencore MIT Service 47 50 FY1Q23 HB +12.1% YoY 34 + BYoys relay el ziey| Abs Yee AlsSloj Ys 27 36 28 1
Slide 10: [Appendix] Quarterly financial tables
[Appendix] 2023.1Q EARNINGS BRIEFING she l FQ Wes ASA B71 2A eA: NAA! % 1920 2020 3Q20 4Q20 1021 2021 3021 4Q21 1022 2022 3022 4022 | 7) | i[eve) one 212, 227, «247,268. «955. 262, «280, 307, 340.s«d1,189' 348. 37 396 414. «1,530 311 Sxol>} 53 57 62 62 234 62 68 83 78 291 84 99 103 92 379 51 DYE|AIA
Slide 11: Thank You
THANK YOU 2023.1Q EARNINGS BRIEFING SK Inc.