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Energy Usage and Greenhouse Gas Organizational Inventory

Energy Consumption

Weikeng’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 2024, electricity consumption was 971,718 kWh, petrol consumption was 8,230.49 liters, and diesel consumption was 3,617.91 liters. After conversion, the total energy consumption was 3,891.03 GJ, and energy intensity was 0.0873 GJ/individual turnover in millions.

Weikeng’s Energy Consumption
Item Unit 2022 2023 2024
Electricity consumption GJ 2,487.54 2,781.51 3,498.18
Petrol consumption GJ 370.53 361.37 262.03
Diesel consumption GJ 35.32 33.15 130.82
Total energy consumption GJ 2,893.38 3,176.03 3,891.03
Individual turnover (Taiwan parent company) NT$ million 28,811.49 33,150.27 44,564.88
Energy intensity (total energy consumption/individual turnover) GJ / NT$ million 0.1004 0.0958 0.0873
Note:
  1. The scope of electricity consumption calculation for 2022 covered operating locations of Weikeng (parent company) in Taiwan: the Taipei Neihu Head Office, the Neihu Tanmei Warehouse Center, the Taoyuan Housheng Warehouse Center, and the South-Central Liaison Offices (Hsinchu, Taichung, and Kaohsiung). In 2023 and 2024, the scope of electricity consumption calculation expanded to include warehousing locations of Weikeng (parent company) in Hong Kong and China: Shatin Warehouse in Hong Kong and Futian Warehouse in Shenzhen China.
  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)2022 and 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: 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 = 35,145.6 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’s Greenhouse Gas Emissions and Intensity
Scope Category Description Unit 2022 2023 2024
Scope 1 Category 1 Direct greenhouse gas emissions tCO2e 29.40 104.43 51.23
Scope 2 Category 2 Indirect greenhouse gas emissions from energy tCO2e 342.04 369.11 465.85
Total: Scope 1+ Scope 2 tCO2e 371.44 473.54 517.07
Emission Intensity(emission volume/individual sales revenue): Scope1+ Scope 2 tCO2e / NT$ million 0.0129 0.0143 0.0116
Scope3 3.1 Upstream transportation and distribution (packaging materials) tCO2e - 0.19 0.52
3.2 Downstream transportation and distribution tCO2e - 634.56 1,046.51
3.3 Employee commuting tCO2e - 244.33 239.84
3.4 Client and visitor transportation tCO2e - Non-significant Non-significant
3.5 Business travel tCO2e - 40.02 50.25
Total: Category 3 Indirect greenhouse gas emissions from transportation tCO2e - 919.11 1,337.12
4.1 Purchased goods (packaging materials) tCO2e - 92.32 119.56
4.2 Capital goods tCO2e - Non-significant Non-significant
4.3 Handling solid and liquid wastes tCO2e - Non-significant Non-significant
4.4 The use of assets tCO2e - Non-significant Non-significant
4.5 The use of other undescribed services tCO2e - Non-significant Non-significant
Total: Category 4 Indirect greenhouse gas emissions from products used by the organization tCO2e - 92.32 119.56
Total: Scope 5 Indirect greenhouse gas emissions from using products of the organization tCO2e - Non-significant Non-significant
Total: Scope 6 Indirect greenhouse gas emissions from other sources tCO2e - Non-significant Non-significant
Total: Scope 3 tCO2e - 1,011.43 1,456.67
Scope3 Emission Intensity(emission volume/individual turnover) tCO2e / NT$ million - 0.0305 0.0327
Individual turnover (Taiwan parent company) NT$ million 28,811.49 33,150.27 44,564.88
Note:
  1. Greenhouse gas inventory adopts the operation control method. 2024 will be established as the GHG emissions base year for Weikeng (Taiwan parent company). The data of 2022 and 2023 are the result of internal verification by the parent company; the data of 2024 had been verified and validated by BSI.
  2. The boundary of GHG inventory for 2022 covered operating locations of Weikeng (parent company) in Taiwan: the Taipei Neihu Head Office, the Neihu Tanmei Warehouse Center, the Taoyuan Housheng Warehouse Center, and the South-Central Liaison Offices (Hsinchu, Taichung, and Kaohsiung). In 2023 and 2024, the boundary of GHG inventory expanded to warehousing locations of Weikeng (parent company) in Hong Kong and China: Shatin Warehouse in Hong Kong and Futian Warehouse in Shenzhen China.
  3. Refrigerant R-600A and R-22(HCFC) are not included in the seven greenhouse gases specified by ISO 14064-1: 2018, both are removed and excluded from the calculation starting from 2024.This is the main reason why the Scope 1 emission of 2024 was lower than 2023.
  4. The types of greenhouse gases inventoried in 2022 included 3 types of greenhouse gas, including carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O). The types of greenhouse gases inventoried in 2023 and 2024 included 7 types of greenhouse gas, including carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), Hydrofluorocarbons (HFCs), Perfluorinated chemicals (PFCs), Sulfur Hexafluoride (SF6), and Nitrogen trifluoride (NF3).
  5. In 2022, Scope 1 included gasoline and diesel, which are mainly used in official vehicles and trucks. In 2023 and 2024, Scope 1 expanded to include: (1) gasoline and diesel, mainly used in official vehicles and trucks; (2) refrigerant supplement; (3) night soil (septic tanks); and (4) firefighting activities (CO2 fire extinguishers).
  6. Scope 2 mainly includes purchased electricity.
    • (1)The boundary of Weikeng (the parent company) in Taiwan: As per the electricity carbon emission coefficient announced by the Energy Administration, Ministry of Economic Affairs, the electricity emission coefficient cited in 2022 was calculated at 0.495 kilograms CO2e/kWh, while the carbon emission coefficient of electricity in 2023 was calculated at 0.494 kg CO2e/kWh. 2024 continued the carbon emission coefficient of electricity in 2023 and calculated at 0.494 kg CO2/kWh.
    • (2)The carbon emission coefficient for Hong Kong, which is 0.39 kg CO2e/kWh, was cited from the 2022 Climate-related Disclosures Report of CLP.
    • (3)The carbon emission coefficient for China was 0.5703 tCO2/MWh by citing the grid emission factor announced by the Ministry of Environment of the People’s Republic of China in 2022 and 2023. The carbon emission coefficient for China has been updated to 0.5366 tCO2/MWh on December 23, 2024 by citing the “Regarding the announcement of the 2022 electricity carbon dioxide emission factors” announced by the Ministry of Environment of the People’s Republic of China.
  7. Data of inventory activities for Scope 3 (Category 3 and Category 4) are as follows:
    • (1)Category 3: a. upstream transportation and distribution (packaging materials); b. downstream transportation and distribution; c. employee commuting, d. business travel.
    • (2)Category 4: a. purchased goods (packaging materials); b. indirect emissions from purchased energy - purchased electricity; c. indirect emissions from purchased energy - transportation.
  8. The GWP values of 6th IPCC report (2021) was cited.
  9. Source of conversion factor used for greenhouse gas emissions: 2022 and 2023 applied Version 6.0.4 of the latest greenhouse gas emission factor management table published by the Ministry of Environment, Executive Yuan, International Energy Agency, Table 3.10 in Chapter 3 of Volume 3 of 2006 IPCC, Guidelines to Account for and Report on Greenhouse Gas Emissions and Removals for Buildings in Hong Kong 2010, SME Carbon Audit Toolkit, 2022 Climate-related Disclosures Report of CLP, and the grid emission factor announced by the Ministry of Environment of the People’s Republic of China; in 2024, “greenhouse gas emission factor published on February 5, 2024 by the Ministry of Environment” was applied instead of “Version 6.0.4 of the latest greenhouse gas emission factor management table published by the Ministry of Environment, Executive Yuan” ,and “Regarding the announcement of the 2022 electricity carbon dioxide emission factors” announced on December 23, 2024 by the Ministry of Environment of the People’s Republic of China.” was applied instead of “the grid emission factor announced by the Ministry of Environment of the People’s Republic of China”.