Carbon Emissions Management

Greenhouse Gas Emissions Inventory

Since 2012, WNC (Taiwan) has defined organizational boundaries in accordance with the operational control approach and by referencing ISO 14064-1 and the GHG Protocol standards, and in turn calculated its GHG emissions with 2020 set as the base year. The major greenhouse gases emitted include carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and hydrofluorocarbons (HFCs).

Scope Type of Emission Sources Corresponding Activities/Equipment
Scope 1:
Direct Emissions
Stationary combustion Diesel fuel used in emergency generators or for winter heating
Mobile combustion Gasoline used by company vehicles
Fugitive emissions ■ Emissions from septic tanks
■ Emissions from the refrigerant used in air conditioners/refrigerators, SMT cooling devices, and company vehicles
■ Emissions from carbon dioxide fire extinguishers
Scope 2:
Energy indirect emissions
GHG emissions from the generation of purchased electricity, heat, steam, or other fossil fuels consumed by WNC Electricity purchased from utilities companies
■ Taiwan: Taipower
■ China: Huazhi Sell Electricity
■ Vietnam: Electricity of Vietnam-Northern Power Corporation (EVN NPC)
Scope 3:
Indirect emissions
Indirect emissions from sources not owned or controlled by WNC, such as rental services, outsourced operations, ■ Emissions produced during business operations

Reduction of GHG Emissions

0 %

WNC has been gradually expanding its business development and production lines, and thus electricity consumption has gradually increased each year. The main source of greenhouse gas emissions is externally purchased electricity, and Scope 2 greenhouse gas emissions account for more than 90% of the total greenhouse gases. To truthfully reflect the impact of changing production capacity on GHG emissions and reduction targets, emission intensity will also be presented to illustrate the relationship between production capacity and emissions. Given the establishment of the S2 and V1 sites, a new GHG emission target has been set: reducing the total Scope 2 greenhouse gas emission intensity (scope 2 GHG emissions / consolidated revenue in millions of NT$) by 5% in 2022 (using 2019 as the base year).

WNC Scope 2 GHG Emissions Intensity

(Total emission unit: tonne CO2e;Emission intensity unit: tonnes CO2e/ million NT$)