Performance and Status

Current Performance of investment in environmental safety

Annual investment status

Amount of investment by year (Unit: 1 million won)

Greenhouse gas emissions

Energy usage

Waste Emissions and Recycling Capacity

Water usage

Protecting the Atmospheric Environment

*As of 2022

대기 환경 보전 - 구분, 단위, 배출 허용 기준, 배출 농도, 배출 허용 기준 대비 배출 농도로 구분되어 있습니다.
Type	Unit	Criteria for allowing discharge	Concentration-discharge	Concentration-discharge compared to the allowable discharge standard.
Dust	mg/S㎥	30	1.55	5%
Nitrogen oxide	ppm	40	30.13	75%
Sulfur oxides	ppm	200	0.95	0.5%
Ammonia	ppm	30	6.27	21%
Nickel	ppm	2	0.08	4%

Dust

5% 1.55mg/S㎥

Nitrogen oxide

75% 30.13ppm

Sulfur oxides

0.5% 0.95ppm

Ammonia

21% 6.27ppm

Nickel

4% 0.08ppm

Less than 15% on average compared to the discharge allowance standard.

Protecting the water quality and environment [Ochang Plant]

*As of 2022

수질 환경 보전 - 구분, 단위, 배출 허용 기준, 배출 농도, 배출 허용 기준 대비 배출 농도로 구분되어 있습니다.
Type	Unit	Criteria for allowing discharge	Concentration-discharge	Concentration-discharge compared to the allowable discharge standard.
BOD	ppm	-	-	-
TOC	ppm	25	9.81	39%
SS	ppm	10	3.23	32%
T-N	ppm	20	7.32	37%
T-P	ppm	2	0.39	19%

※ BOD is not a measurement target.

TOC

39% 9.81ppm

TSS

32% 3.23ppm

T-N

37% 7.32ppm

T-P

19% 0.39ppm

Less than 32% on average compared to the discharge allowance standard.

Safety, health & environment management