The calculation of a product’s carbon footprint typically involves several steps:

1. Setting Objectives and Scope Boundaries: The first step is to establish goals and define the scope boundaries. For B2B products, the boundary can be set as ‘cradle to gate,’ while for B2C end-user products, it can be set as ‘cradle to cradle.’
2. Mapping the Production Process: In the second step, you create a process map of the product’s production, identifying each production stage and the scope of activity data that needs to be collected. In some cases, whole factory activity data allocation may be necessary.
3. Collecting Emission Factors: The third step involves gathering emission factors, which can come from information provided by suppliers or internationally recognized databases of emission factors.
4. Calculating the Carbon Footprint: In the fourth step, you multiply the ‘activity data’ for the target product by the corresponding ’emission factors’ and sum them to calculate the carbon footprint of the entire product.

• Financial Industry: Up to 56% disclose in Scope 1 to Scope 3, with external verification. However, only three financial institutions report on their investment emissions, which is a critical aspect of the industry.
• Cement Industry: 54% disclose in Scope 1 to Scope 3, with external verification, and some go further to calculate product carbon content.
• Steel Industry: 31% disclose in Scope 1 to Scope 3, with product carbon content calculations, but only four undergo third-party verification.
• Electronic Component Industry: 23% disclose in Scope 1 to Scope 3, with external verification; 27% disclose in Scope 1 to Scope 2, also with external verification.
• Semiconductor Industry: 17% disclose in Scope 1 to Scope 3, with external verification; 28% disclose in Scope 1 to Scope 2, with external verification.
• Textile Industry: 12% disclose in Scope 1 to Scope 3, with external verification.
• Food Industry: 18% disclose in Scope 1 to Scope 3, with external verification.
• Electrical Machinery Industry: 7% disclose in Scope 1 to Scope 3, with external verification.
• Note: The disclosure rates are calculated based on the total number of listed companies on the Taiwan Stock Exchange (excluding over-the-counter companies) and are sourced from the Taiwan Stock Exchange website.