Sustainability Accounting Standards Board Index

Topics	Code	Metrics	Categories	Report Contents or Explanation
Topics	Code	Metrics	Categories	Unit	2023	2024	2025
Greenhouse Gas Emissions	TC-SC-110a.1	Gross global Scope 1 emissions	Quantitative	Metric tons CO₂-e	1,596,031	1,825,872	2,196,494
	TC-SC-110a.1	Amount of total emissions from perfluorinated compounds	Quantitative	metric tons CO₂-e	335,714	347,206	403,167
	TC-SC-110a.2	Discussion of long- and short-term strategy or plan to manage Scope 1 emissions, emissions reduction targets, and an analysis of performance against those targets	Discussion and Analysis	Please see Climate and Energy: Drive Low-carbon Manufacturing
Energy Management in Manufacturing	TC-SC-130a.1	Total energy consumed	Quantitative	Gigajoules	89,190,327	98,840,381	111,735,926
		Percentage grid electricity		%	94%	93%	93%
		Percentage renewable		%	10.50%	13.20%	18.63%
				Please see Climate and Energy
Water Management	TC-SC-140a.1	Total water withdrawn and percentage in regions with High or Extremely High Baseline Water Stress	Quantitative	Thousand m³	113,610	128,779	149,855
				%	2.80%	6.10%	6.40%
		Total water consumed and percentage in regions with High or Extremely High Baseline Water Stress		Thousand m³	106,323	116,840	135,065
				%	0.40%	1.20%	1.20%
				Please see Water Stewardship: Sustainable Water Stewardship
Waste Management	TC-SC-150a.1	Amount of hazardous waste from manufacturing and percentage recycled	Quantitative	Hazardous waste from manufacturing: metric tons	563,392	660,176	788,638
				%	99%	99%	99%
				In-house recycled hazardous waste: metric tons	192,155	206,023	259,569
				Please see Circular Resources
Workforce Health & Safety	TC-SC-320a.1	Description of efforts to assess, monitor, and reduce exposure of workforce to human health hazards	Discussion and Analysis	Please see Occupational Safety and Health
Workforce Health & Safety	TC-SC-320a.2	Total amount of monetary losses as a result of legal proceedings associated with employee health and safety violations	Quantitative	The Company has no significant monetary losses as a result of legal proceedings associated with employee safety and health violations
Recruiting & Managing a Global & Skilled Workforce	TC-SC-330a.1	Percentage of employees that require a work visa^{Note 1}	Quantitative	Taiwan fabs and Visera: %	1.03%	1.11%	0.98%
Recruiting & Managing a Global & Skilled Workforce	TC-SC-330a.1	Percentage of employees that require a work visa^{Note 1}	Quantitative	Operation sites outside of Taiwan^{Note 2}: %	3.74%	7.82%	8.87%
Product Lifecycle Management	TC-SC-410a.1	Percentage of products by revenue that contain IEC 62474 declarable substances	Quantitative	%	0.02%	0.01%	<0.01%
Product Lifecycle Management	TC-SC-410a.2	Processor energy efficiency at a systemlevel for: (1) servers, (2) desktops and (3) laptops	Quantitative	As a dedicated IC foundry, TSMC manufactures customer designs and has no semiconductor products of its own. This metric is not applicable to TSMC.
Materials Sourcing	TC-SC-440a.1	Description of the management of risks associated with the use of critical materials	Discussion and Analysis	Please see Sustainable Supply Chain: Improve Sustainability Risk Management
Intellectual Property Protection & Competitive Behaviour	TC-SC-520a.1	Total amount of monetary losses as a result of legal proceedings associated with anti-competitive behaviour regulations	Quantitative	TSMC is not involved in any ongoing investigations related to anti-competitive practices.
Activity Metrics	TC-SC-000.A	Total production	Quantitative	Million 12"-equivalent wafers	~16	~17	>17
	TC-SC-000.B	Percentage of production from owned facilities		%	100%	100%	100%
	TC-SC-000.B			Please see Financial Performance

Note 1: The data excludes assignees, employees holding permanent residency, or Employment Gold Cards prior to joining TSMC.

Note 2: Operation sites outside of Taiwan encompass all overseas subsidiaries, with TSMC Arizona included in the data scope starting from 2024.