In 2023, two employees with practical experience in GHG inventory were appointed to participate in the GHG verification professional certification course, which covers standards such as ISO 14064-1, ISO 14067 and PAS 2060. In addition, a number of administrative supervisors attended a series of corporate carbon reduction and net-zero strategic planning courses and all passed the exam and obtained certificates. They became the Group’s internal lecturers to continuously promote GHG inventory and carbon reduction plans. It is scheduled to invite relevant personnel from suppliers for a meeting in 2024 to promote concepts and knowledge related to net-zero carbon reduction for joint efforts towards net-zero.
An inventory of WT and its subsidiaries included in the consolidated reports is 100% developed, earlier than legally required.
Since 2018, WT has been working on GHG inventory with reference to the Specification with Guidance at the Organization Level for Quantification and Reporting of Greenhouse Gas Emissions and Removals (ISO 14064-1) and the GHG inventory protocol. The inventory is verified by a third party to assure its accuracy and reliability every year. A complete inventory of all its individual companies was developed in 2022. With 2022 as the base year, WT is committed to reducing Scopes 1 and 2 GHG emissions by 2% every year, and keeping its management policies updated according to the reduction situation.

Base on the result of major indirect emission sources identification, indirect GHG emissions from purchased electricity (Category 2: Capital Goods), upstream transportation and distribution (Category 4) and business Travel (Category 3) were included within the boundaries. In addition, the emissions of all the locations where operate WT’s companies and Taiwan subsidiaries included the consolidated statements were verified by a third-party in accordance with ISO 14064-1
GHG emission reductions target was met again in 2023
In 2023, WT emitted 3152.10 tonnes CO2e (using location-based accounting), or 3,147.15 tonnes CO2e (using marketbased accounting). Third-party verified Scopes 1 and 2 GHG emissions was 1,541.94 tons CO2e, down by 3.49% relative to 2022 (1597.75 tonnes CO2e), meeting the reduction target of 0.0041 tonnes CO2e/NTD million.