Environmental Sustainability|Air Pollution Control

Air Pollution Control

Nuvoton actively reduce the environmental impact of our business operations by investing in innovative technologies and initiating layouts for renewable energy and net carbon zero emissions. We enhance resource use efficiency and implement waste management to respond to the continuously evolving international environmental regulations, extreme climate events, and other risks. By estimating financial impacts and planning management costs in advance, we formulate environmental strategies and build operational resilience for the company.

SDGS
SDG 7 Affordable and Clean Energy
SDG 9 Industry, Innovation and Infrastructure
SDG 12 Responsible Consumption and Production
SDG 13 Climate Action

48.8

Approved SBTi Near-Term Target: Commitment to Reduce Scope 1 and 2 Emissions by 2030 Compared to the 2022 Baseline

25

%

Approved SBTi Near-Term Target: Commitment to Reduce Scope 3 Emissions by 2030 Compared to the 2023 Baseline

1163000

kWh

Nuvoton Taiwan's Annual Electricity Saving Achievement in 2024

Air Pollution Control

 

Nuvoton strictly complies with government environmental regulations and references international standards, striving to continuously reduce air pollutants generated during production processes. These pollutants include volatile organic compounds (VOCs), nitrogen oxides (NOx), sulfur oxides (SOx), ammonia (NH₃), chlorine (Cl₂), hydrochloric acid (HCl), nitric acid (HNO₃), and phosphoric acid (H₃PO₄).

 

The company adopts source control strategies, improving processes to lower exhaust gas concentrations and emissions, and applies appropriate treatment based on the characteristics of the exhaust gases. Air pollution control systems operate 24/7 year-round, with continuous monitoring to ensure proper functioning. In addition, certified laboratories are commissioned annually for testing, and results are reported to the competent authorities. Historical test results have consistently been far superior to regulatory standards.

Air Pollution Prevention Measures

 

To effectively reduce air pollutant emissions, Nuvoton adopts multiple treatment technologies based on the characteristics of exhaust gases, ensuring compliance with environmental standards:

General Exhaust

Heat dissipation exhaust from equipment, which does not contain air pollutants.

Acidic and Alkaline Exhaust

Treated through scrubber tower with water washing

Organic Exhaust

Adsorbed and concentrated using a zeolite rotor, then desorbed at high temperature and incinerated

High-Boiling-Point Organic Exhaust

Processed via condensation treatment, followed by activated carbon adsorption.

Nuvoton Taiwan 2022-2024 Emissions

Nuvoton Japan 2022-2024 Emissions

1  The survey scope of Nuvoton Taiwan is the Yanshin plant, while Nuvoton Japan reported no detection(ND) of VOC and PM values in 2024.

2  The data information here has been recompiled and the adjustment instructions compared with the previous year's report are detailed in Appendix 3.