Biggest industrial CO₂ emitters in South Korea

#	Facility	Type	Country	t CO₂e/yr
1	POSCO Gwangyang steel plant	Steel Plant	South Korea	34,799,208
2	POSCO Pohang steel plant	Steel Plant	South Korea	24,457,044
3	Hyundai Steel Dangjin steel plant	Steel Plant	South Korea	20,049,392
4	GS-Caltex Yeosu Refinery	Refinery	South Korea	8,882,869
5	SK Ulsan Refinery	Refinery	South Korea	7,295,436
6	S-Oil Onsan Refinery	Refinery	South Korea	6,196,517
7	Sungshin Cement Danyang Cement Plant	Cement Plant	South Korea	6,146,734
8	Hyundai Oilbank Daesan Refinery	Refinery	South Korea	5,778,641
9	Sampyo Cement Samcheok Cement Plant	Cement Plant	South Korea	3,255,726
10	Yeochon NCC, Yeochun	Petrochemical	South Korea	3,098,945
11	LG Petrochemical Yeosu, Yeochun	Petrochemical	South Korea	2,712,425
12	Hanil Cement Danyang Cement Plant	Cement Plant	South Korea	2,473,723
13	Union Corp Pohang Cement Plant	Cement Plant	South Korea	2,377,321
14	Hanwha TotalEnergies Petrochemical, Daesan	Petrochemical	South Korea	2,068,224
15	LG Petrochemical Daesan, Daesan	Petrochemical	South Korea	1,763,076
16	Lotte Petrochemical Yeosu, Yeochun	Petrochemical	South Korea	1,668,141
17	Asia Cement Jecheon Cement Plant	Cement Plant	South Korea	1,622,527
18	Ssangyong Cement Yeongweol Cement Plant	Cement Plant	South Korea	1,602,319
19	Lotte Petrochemical Daesan, Daesan	Petrochemical	South Korea	1,491,834
20	SK Incheon Oil Refinery	Refinery	South Korea	1,451,565
21	Ssangyong Cement Donghae Cement Plant	Cement Plant	South Korea	1,310,666
22	KPIC Onsan Plant, Ulsan	Petrochemical	South Korea	1,220,591
23	SK geo centric, Ulsan	Petrochemical	South Korea	1,166,343
24	Hyundai Chemical, Daesan	Petrochemical	South Korea	1,152,780
25	GS Caltex Yeosu, Yeochun	Petrochemical	South Korea	1,017,159
26	Hanwha Total Condensate Splitter	Refinery	South Korea	946,920
27	Korea Cement Jangseong Cement Plant	Cement Plant	South Korea	906,174
28	Hyundai Lotte Daesan Condensate Splitter	Refinery	South Korea	895,888
29	Hanil Hyundai Cement Yeongweol Cement Plant	Cement Plant	South Korea	694,780
30	KG Steel Dangjin steel plant	Steel Plant	South Korea	638,221
31	Halla Cement Okgye Main Cement Plant	Cement Plant	South Korea	630,971
32	Hanil Hyundai Cement Samgok Cement Plant	Cement Plant	South Korea	579,830
33	SK Incheon Condensate Splitter	Refinery	South Korea	527,326
34	S-Oil Onsan Condensate Splitter	Refinery	South Korea	470,625
35	Hyundai Steel Incheon steel plant	Steel Plant	South Korea	276,367
36	SeAH Steel Pohang plant	Steel Plant	South Korea	238,892
37	Hyundai Steel Pohang steel plant	Steel Plant	South Korea	200,053
38	KG Steel Incheon steel plant	Steel Plant	South Korea	199,077
39	KISCO steel Changwon plant	Steel Plant	South Korea	176,517
40	Paper Corea Pulp Mill	Pulp & Paper Mill	South Korea	135,954
41	Moorim Paper Co. Ltd - Moorim P&P	Pulp & Paper Mill	South Korea	135,954
42	South Korea	Chemical Plant	South Korea	130,609
43	Dongkuk Steel Incheon steel plant	Steel Plant	South Korea	129,446
44	SeAH Besteel Gunsan steel plant	Steel Plant	South Korea	123,621
45	Union Corp Cheongju Cement Plant	Cement Plant	South Korea	104,036
46	Dongkuk Steel Pohang steel plant	Steel Plant	South Korea	82,375
47	SeAH Changwon Integrated Special Steel plant	Steel Plant	South Korea	70,607
48	DaehanSteel Noksan Steel Plant	Steel Plant	South Korea	58,839
49	YK Steel Busan plant	Steel Plant	South Korea	54,720
50	Hansco Hwanyoung Steel Dangjin plant	Steel Plant	South Korea	47,071
51	Yeongam County	Aluminium Smelter	South Korea	16,579

Method: ranked from open data — capacity and CO₂e from Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0). Sorted server-side; company-level data only.