GHG Management

TSC plays a vital role in the semiconductor manufacturing chain and also endorses the concept of “Extended Producer Responsibility”. The Company is committed to producing and designing environmentally friendly products, reducing product packaging, and researching environmentally friendly materials that are easily biodegradable. To implement various environmentally friendly projects more efficiently, TSC’s Corporate Sustainability Office has set up an “Environmental and Energy Management Team” functional group to be responsible for annual carbon reduction goals and Implement various greenhouse gas reduction plans, promote renewable energy layout, etc., from the system to reduce greenhouse gas emissions.

Greenhouse Gas Inventory

TSC has implemented a greenhouse gas inventory mechanism in accordance with ISO 14064-1. The Li-Je Site has been conducting inventories for scope 1 and 2 (categories 1 and 2) since 2014, and expanded to include scope 3 (categories 3 to 6) in 2022. The I-lan Site began conducting inventories for categories 1 and 2 in 2022. TSC plans to further expand its inventory scope in 2024 to include TSC headquarters and overseas business locations, demonstrating its ongoing commitment to Climate Action. In 2022, TSC saw a slight increase in categories 1 and 2 compared to 2021, attributed to increased production capacity. However, the intensity of carbon emissions per unit has been reduced for three consecutive years. TSC will continue to implement energy-saving and carbon reduction initiatives through various programs in the future.

In 2022, the primary carbon emissions at two sites are attributed to outsourced electricity in category 2. The direct greenhouse gas emissions (category 1) at TSC’s I-lan Site amount to 0.9059 tCO₂e, while the emissions from outsourced electricity (category 2) total 3,997.2177 tCO₂e, accounting for 99.98% of the site’s total emissions. Similarly, at the Li-Je Site, the main source of greenhouse gas emissions is outsourced electricity in category 2, which amounts to 10,341.862 tCO₂e. This is followed by other indirect emissions (categories 3 to 6) totaling 4,672.2161 tCO₂e, and finally, direct greenhouse gas emissions (category 1) of 34.247 t-CO₂e.

Greenhouse Gas Emissions at the I-lan and Li-Je Sites in 2022

Greenhouse Gas Emissions Intensity

Other Indirect GHG Emissions (Categories 3 to 6)

Since 2022, Li-Je Site has conducted an inventory of other indirect GHG emissions. In 2022, the Li-Je Site’s Category 3 and Category 4 were the largest suppliers of raw material intake –  materials transportation emissions, as well as for upstream fuel-energy related activities and operational waste treatment, the results were 4,672.2161tCO₂e.

SiteCategoryEmission SourceGHG TypeEmissions(tCO₂e)Total(tCO₂e)
Li-Je SiteCategory 3Transport EmissionsCO₂2,675.77144,672.2161
Category 4Product Emissions from Organization UseCO₂1,996.4447

Future Carbon Reduction Program

The carbon reduction programs for both short and medium-term are divided into five categories: equipment replacement, energy-saving projects, clean energy utilization, building management systems, and digital management systems. TSC optimizes energy efficiency through a “source-first” reduction strategy, along with optimizing process conditions and replacing inefficient processing equipment. This helps to reduce both direct and indirect greenhouse gas emissions in our operations and processes. For more detail, please refer to TSC 2022 ESG Report 5.1 Resources Management


DateValid UntilTitleFile
Aug 12, 2021Aug 10, 2024ISO 14001:2015 (I-lan & Li-je)
Aug 19, 2021Nov 09, 2024ISO 14001:2015 (YEW)
Jun 09, 2022June 20, 2025ISO 14001:2015 (TEW)
Aug 17, 2023N/AISO 14064-1:2018 (YEW)
Nov 13, 2023N/AISO 14064-1:2018 (Li-je)
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