Water Quality

Hyosung Heavy Industries has set a target to reduce wastewater emissions by 32.5% by 2026 compared to 2022. To achieve this goal, the company plans to undertake activities such as replacing filters at the wastewater treatment plant, revising the wastewater treatment plant operation manual, and improving wastewater leakage in the recycling tanks.

At Hyosung Heavy Industries' Changwon Plant, monthly water quality tests are conducted to continuously monitor the concentration of water pollutants. Activated carbon and filter media in the wastewater treatment plant are regularly replaced to ensure that the wastewater discharge concentration remains within 50% of the legal limit. Additionally, compliance with the Water Environment Conservation Act is maintained through a comprehensive survey of pollution levels in wastewater directly discharged into rivers (pressure testing and infiltration

Air Quality

Hyosung Heavy Industries has set reduction targets for dust and THC emissions to minimize air pollutant emissions by 2026. These targets aim to reduce emissions by approximately 40.8% and 40.2%, respectively, compared to 2022 levels. To achieve these goals, the company plans to implement advanced air quality management strategies and carry out initiatives to reduce dust and THC emissions.

At the Changwon Plant, Hyosung Heavy Industries has established stringent internal emission standards set at 50% of the legal limit for air pollutants. If internal emission standards are exceeded, preventive replacement of activated carbon and bag filters is carried out, ensuring thorough monitoring of air pollutants. The company sets rational replacement cycles for activated carbon and bag filters relative to production volume, continuously monitors production levels, and replaces these components in a timely manner once the replacement cycle is reached. The Ultra High Voltage Transformer Manufacturing Team has addressed previous issues by introducing injector-type pulses to the de-dusting facilities, which extends the lifespan of bag filters and reduces compressed air consumption. Additionally, the Casting Team has introduced, for the first time in the country, an adsorption and catalytic oxidation facility (Veraria) using regenerative filters to handle the large amount of pollutants generated from the dipping painting facility, which was previously managed by activated carbon adsorption towers. This new system has shortened the replacement time by addressing the short breakthrough time of activated carbon.

Ozone-Depleting Substances

Hyosung Heavy Industries rules out the use of substances containing chlorofluorocarbons, which are governed by the Montreal Protocol, an international treaty designed to protect the ozone layer.

Soil

Hyosung Heavy Industries has no facilities that cause soil pollution.

Chemical Substances

Hyosung Heavy Industries has set a reduction target for hazardous chemical usage by 2026. This target aims to reduce usage by approximately 46.5% compared to 2021 levels. Although a new Vacuum Interrupter (VI) process is planned to be added in 2024, the company intends to achieve its goal by proactively substituting hazardous chemicals in the new process to minimize usage.

* The 2022 usage of hazardous chemicals was significantly lower than in other years due to the shutdown of the casting process at Changwon Plant 1.

Hyosung Heavy Industries has enhanced the efficiency of chemical substance management used in production processes by implementing a new Chemical Management System (ECMS) on top of the existing ERP-based computerized system. This upgrade improves management efficiency. All purchased materials are evaluated through the system to determine if they contain chemical substances. If they do, the relevant chemical data provided by the supplier must be reviewed by the responsible staff at each plant, who check regulations and permit requirements in their own database before approval for purchase. Additionally, the system is designed to ensure that MSDS training is conducted simultaneously upon the receipt of all materials, allowing for more systematic management. At the Changwon Plant, the company is building an eco-friendly workplace by replacing existing hazardous chemicals with safer alternatives annually and is working to prevent new hazardous chemicals through pre-environmental safety reviews.

Zero-Emission Vehicles (ZEVs)

Hyosung Heavy Industries operates ZEVs, including electric vehicles, that can reduce air pollution and GHG emissions. We plan to increase the proportion of ZEVs to total vehicles over time.