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Organizational Greenhouse Gas Inventory and Verification Schedule Planning Climate Change Energy Usage and Greenhouse Gas Organizational Inventory Policies to Improve Energy Efficiency Water Resource Management Waste Management
Energy Usage and Greenhouse Gas Organizational Inventory

Energy Consumption

Weikeng Parent Company’s energy consumption categories include electricity and non-renewable fuels (including petrol and diesel), with electricity being the majority and no utilization of renewable energy. In 2025, electricity consumption was 939,180 kWh, petrol consumption was 7,232.57 liters, and diesel consumption was 3,925.71 liters. After conversion, the total energy consumption was 3,753.25 GJ, and energy intensity was 0.0823 GJ/individual turnover in millions.

Weikeng Parent Company’s Energy Consumption
Item Unit 2023 2024 2025
Electricity consumption GJ 2,781.51 3,498.18 3,381.05
Petrol consumption GJ 361.37 262.03 230.26
Diesel consumption GJ 33.15 130.82 141.95
Total energy consumption GJ 3,176.03 3,891.03 3,753.25
Individual turnover (Taiwan parent company) NT$ million 33,150.27 44,564.88 45,630.65
Energy intensity (total energy consumption/individual turnover) GJ / NT$ million 0.0958 0.0873 0.0823
Note:
  1. As of 2024 and 2025, electricity consumption data has been expanded to fully cover the shared public area utilities across all Weikeng operating sites. For 2023, the coverage of public area electricity included all operating sites, with the exception of the Taipei Neihu Head Office.
  2. The scope of gasoline and diesel consumption calculation primarily covered the operating locations of the parent company in Taiwan.
  3. Source: Electricity usage refers to the data listed in the monthly electricity bill of each operating location; gasoline and diesel are mainly based on the actual amounts used.
  4. Calorific value conversion coefficients of each energy source:
    • （1）2023: electricity 1 kWh = 3,600 KJ; gasoline 1 L = 32,635.2 KJ (7,800 kcal); diesel 1 L = 35,145.6 KJ (8,400 kcal).
    • （2）2024 and 2025: gasoline 1 L = 31,836.1 KJ (refers to the low calorific value of 7,609 kcal/L for automotive in 2024 announced by the Ministry of Environment on February 13, 2025); diesel 1 L = 36,158.1 KJ (refers to the low calorific value of 8,642 kcal/L for automotive in 2024 announced by the Ministry of Environment on February 13, 2025).
  5. 1 gigajoule (GJ) = 109 joules (J).

Greenhouse Gas Organizational Inventory

Weikeng adopts the operation control method in the organizational boundaries of ISO 14064-1:2018. Summarization of GHG emission/reduction were conducted for the parent company of Weikeng in 2024, the inventory boundary included the Taipei Neihu Head Office, the Neihu Tanmei Warehouse Center, the Taoyuan Housheng Warehouse Center, the South-Central Liaison Offices (Hsinchu, Taichung, and Kaohsiung), Shatin Warehouse in Hong Kong and Futian Warehouse in Shenzhen China. The reporting boundary of emission sources included gasoline and diesel (primarily used for official vehicles and trucks), Refrigerant replenishment, water and fertilizer (septic tanks), fire activities (CO2 fire extinguishers) of Scope 1(Category 1); purchased electricity from external sources of Scope 2 (Category 2); Scope 3 included upstream transportation and distribution (packaging materials), downstream transportation and distribution, employee commuting, business travel of category 3. and purchased goods (packaging materials), indirect emissions from externally purchased energy - purchased electricity, indirect emissions from externally purchased energy – transportation of category 4. The inventory covered all GHG emission sources requested. Categories not included in the inventory are due to operational activity data not being considered as significant indirect emission sources.

The results of GHG inventory for 2024 had undergone external audit conducted by an external audit and verification organization (the British Standards Institution Taiwan branch) in March, 2025. The verification process was in accordance with ISO 14064-3:2019 and followed the standards of ISO 14064-1:2018. Scope 1 and 2 (Categories 1 and 2) were verified at the "reasonable assurance" level (unqualified opinion), while Scope 3 (Categories 3 to 4) followed the conclusion of "validation and agreed-upon procedures, AUP". The Opinion Statement issued by the BSI was received in April, 2025 (Opinion Statement No. GHGEV 817395).

Weikeng Group’s Greenhouse Gas Emissions and Intensity
Scope Category Description Unit 2025
Scope 1 Category 1 Direct greenhouse gas emissions tCO2e 131.59
Scope 2 Category 2 Indirect greenhouse gas emissions from energy tCO2e 939.35
Total: Scope 1+ Scope 2 tCO2e 1,070.94
Emission Intensity（emission volume/individual sales revenue）: Scope1+ Scope 2 tCO2e / NT$ million 0.0099
Scope3 3.1 Upstream transportation and distribution (packaging materials) tCO2e 12.18
3.2 Downstream transportation and distribution tCO2e 2,630.05
3.3 Employee commuting tCO2e 561.41
3.5 Business travel tCO2e 555.86
Total: Category 3 Indirect greenhouse gas emissions from transportation tCO2e 3,759.50
4.1 Purchased goods (packaging materials) tCO2e 731.02
Total: Category 4 Indirect greenhouse gas emissions from products used by the organization tCO2e 731.02
Total: Scope 3 tCO2e 4,490.52
Scope3 Emission Intensity（emission volume/individual turnover） tCO2e / NT$ million 0.0413
Individual turnover (Taiwan parent company) NT$ million 108,716.38
Weikeng Parent Company’s Greenhouse Gas Emissions and Intensity
Scope Category Description Unit 2023 2024 2025
Scope 1 Category 1 Direct greenhouse gas emissions tCO2e 104.43 51.23 49.24
Scope 2 Category 2 Indirect greenhouse gas emissions from energy tCO2e 369.11 465.85 436.68
Total: Scope 1+ Scope 2 tCO2e 473.54 517.07 485.93
Emission Intensity（emission volume/individual sales revenue）: Scope1+ Scope 2 tCO2e / NT$ million 0.0143 0.0116 0.0106
Scope3 3.1 Upstream transportation and distribution (packaging materials) tCO2e 0.19 0.52 0.39
3.2 Downstream transportation and distribution tCO2e 634.56 1,046.51 1,715.35
3.3 Employee commuting tCO2e 244.33 239.84 247.49
3.5 Business travel tCO2e 40.02 50.25 97.57
Total: Category 3 Indirect greenhouse gas emissions from transportation tCO2e 919.11 1,337.12 2,060.80
4.1 Purchased goods (packaging materials) tCO2e 92.32 119.56 141.77
Total: Category 4 Indirect greenhouse gas emissions from products used by the organization tCO2e 92.32 119.56 141.77
Total: Scope 3 tCO2e 1,011.43 1,456.67 2,202.57
Scope3 Emission Intensity（emission volume/individual turnover） tCO2e / NT$ million 0.0305 0.0327 0.0483
Individual turnover (Taiwan parent company) NT$ million 33,150.27 44,564.88 45,630.65
Weikeng Subsidiaries’(consolidated) Greenhouse Gas Emissions
Scope Category Description Unit 2025
Scope 1 Category 1 Direct greenhouse gas emissions tCO2e 82.35
Scope 2 Category 2 Indirect greenhouse gas emissions from energy tCO2e 502.67
Total: Scope 1+ Scope 2 tCO2e 585.01
Scope3 3.1 Upstream transportation and distribution (packaging materials) tCO2e 11.79
3.2 Downstream transportation and distribution tCO2e 914.7
3.3 Employee commuting tCO2e 313.92
3.5 Business travel tCO2e 458.29
Total: Category 3 Indirect greenhouse gas emissions from transportation tCO2e 1,698.7
4.1 Purchased goods (packaging materials) tCO2e 589.25
Total: Category 4 Indirect greenhouse gas emissions from products used by the organization tCO2e 589.25
Total: Scope 3 tCO2e 2,287.95
Note:
  1. The inventory scope includes Category 1, Category 2, and Categories 3–6. Among these, Category 3.4 (Client and visitor transportation), Category 5 (Indirect greenhouse gas emissions from using products of the organization), and Category 6 (Indirect greenhouse gas emissions from other sources) are excluded from the table above due to their insignificance. Furthermore, the inventory utilizes Global Warming Potential (GWP) values from the IPCC 2021 Sixth Assessment Report (AR6).
  2. The GHG inventory covers seven types of greenhouse gases: Carbon dioxide (CO2), Methane (CH4), Nitrous oxide (N2O), Hydrofluorocarbons (HFCs), Perfluorocarbons (PFCs), Sulfur hexafluoride (SF6), and Nitrogen trifluoride (NF3).
  3. The 2025 GHG data is currently based on the Weikeng Group’s internal self-inventory. Following the completion of external verification (scheduled for March 2025), this table will be updated based on the verified results and published on the official website. Beginning in 2025, the Group's subsidiaries have conducted their first formal greenhouse gas (GHG) inventory.
  4. Scope 2 mainly includes purchased electricity. The 2025 electricity emission factors are cited as follows:
    • （1）Taiwan: 0.474 kg CO2e/kWh, as published by the Energy Administration, Ministry of Economic Affairs for 2024. The 2025 data adopts the official electricity emission factor of 0.474 kg CO2e/kWh for 2024 announced by the Energy Administration. For 2024, the calculation adopts the 2023 emission factor.
    • （2）Hong Kong: 0.38 kg CO2e/kWh, cited from the CLP 2024 Climate-related Disclosures Report.
    • （3）China: 0.5777 CO2e/kWh, cited from the Ministry of Ecology and Environment of the PRC (Announcement on the 2024 Grid Emission Factors, Oct 23, 2025).
    • （4）Thailand: 0.397 CO2e/kWh, cited from the Energy Policy and Planning Office (EPPO), Ministry of Energy.
    • （5）Singapore: 0.408 CO2e/kWh, cited from the Energy Market Authority (EMA).
    • （6）Malaysia: 0.603 CO2e/kWh, cited from the 《Grid Emission Factor (GEF) for the Electricity Grids in Malaysia》published by the Energy Commission (Suruhanjaya Tenaga) of Malaysia.
  5. GHG emissions are primarily calculated using the "Emission Factor Method," supplemented by the "Mass Balance Method." In addition to the sources used in 2024, new conversion factor sources for 2025 include: the Taiwan High Speed Rail (THSR) website, Carbon Footprint Information Network, ICAO Carbon Emissions Calculator (ICEC), EPPO of Thailand, EMA of Singapore, Energy Commission of Malaysia, NDRC 2014 Guidelines for GHG Accounting and Reporting for Coal Production Enterprises, and the China Life Cycle GHG Emission Factor Database of China.
  6. For the standards, methodologies, assumptions, and calculation tools used in the 2023 and 2024 inventories, please refer to sections 3.4 (Climate Change Mitigation) and 3.5 (Environmental Protection) of the 2024 Sustainability Report.