Pollution Prevention

  1. Go to Home
  2. Sustainability
  3. Environmental
  4. Pollution Prevention

Environmental Compliance Principles

Hyosung Heavy Industries adheres to the following principles to minimize pollution and environmental impacts and effectively manage environmental risks by adhering to environmental laws and regulations.

  • In accordance with environmental
    management policies, manuals,
    and procedures, we shall immediately
    reflect any amendments to environmental
    laws and regulations, carefully review
    environmental laws to manage
    environmental risks efficiently,
    and assess compliance annually.
  • We shall make efforts to reduce our environmental impact by establishing internal standards that are more stringent than legal requirements.
  • We shall transparently disclose our compliance with environmental laws and regulations to stakeholders through various channels, such as sustainability reports, the Env-Info System, and the CDP.
Environmental Management Policy

Environmental Management System

Every year, Hyosung Heavy Industries sets KPIs and objectives for environmental management items (e.g. environmental qualification management, environmental impact assessment, environmental compliance assessment, regulation management, air and water pollutant concentrations, waste generation, responding to stakeholder complaints), develops annual plans, and evaluates whether or not these objectives are met.

  • Water Quality

    Hyosung Heavy Industries has set a target to reduce wastewater emissions by 39% 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.

    Water Quality
    Category 2022 2023 2024 2025 2026 Target Achievement Strategy
    Performance Target Performance Target Target Target
    Wastewater (metric tonnes) 8,449 5,856 5,194
    (Achieved)    		 5,300 5,200 5,150

    · Conduct filter replacement work at the wastewater treatment plant

    · Revise the wastewater treatment plant operation manual

    · Improve 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 a target to reduce dust and THC emissions by approximately 40% each by 2026, compared to 2022, to minimize air pollutants. To achieve this goal, the company plans to implement a strategy for advanced air management and undertake activities to reduce dust and THC emissions.

    Air Quality
    Category 2022 2023 2024 2025 2026 Target Achievement Strategy
    Performance Target Performance Target Target Target
    Dust Emissions
    (metric tonnes)    		 4.19 2.95 2.61
    (Achieved)    		 2.54 2.50 2.48

    · Installation of high-efficiency dust collectors and replacement with high-efficiency filter media

    · Replacement with high-performance activated carbon

    · Improvement of low-efficiency dust collectorss
    THC Emissions
    (metric tonnes)    		 41.99 41.85 26.09
    (Achieved)    		 25.40 25.20 25.10

    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 target to limit excess emissions of hazardous chemicals to approximately 5.9% above 2022 levels by 2026. This goal takes into account the anticipated increase in emissions to 17.6% in 2024 due to the addition of new VI (Vacuum Interrupter) processes. To achieve this target, the company plans to minimize emissions by preemptively replacing hazardous chemicals used in the new processes.

    Chemical Substances
    Category 2022 2023 2024 2025 2026 Target Achievement Strategy
    Performance Target Performance Target Target Target
    hazardous chemicals
    (metric tonnes)    		 8.5 8.4 8.5 10.0 9.5 9.0

    Replacement of newly used hazardous chemicals (e.g., varnish, lead):

    · (Existing) 100% Styrene Varnish → (Revised) Eco-friendly Varnish without Styrene

    · (Existing) Lead Products → (Revised) Lead-free Solder

    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.