Appendix D: Our Emissions Data INVENTORY CATEGORY ACTIVITY (tCO2e) 2025 202419 202320 % VARIATION 2025 VS. 2024 METHODOLOGY NOTES Scope 1 Stationary Combustion 80 95 110 -16% Emission factors were revised in conformity with datasets maintained by government agencies. Data collection and ongoing process improvements. Scope 2 (Location-Based) Electricity21 2,482 2,239 2,368 11% Scope 2 (Market-Based)22 Electricity 2,417 2,225 2,368 9% Calculations include environmental attribute certificates. Scope 323 Cat. 1 - Purchased Goods & Services 19,061 16,938 14,891 13% Calculated using a combination of available supplier-specific activity and spend-based data. Data collection and ongoing process improvements enabled access to expanded datasets. Cat. 2 - Capital Goods 908 709 580 28% Cat. 3 - Fuel and Energy Related Activities 518 493 520 5% Data collection improvement enabling calculation of upstream purchased fuels, electricity and transmission and distribution losses. Cat. 4 - Upstream Transportation & Distribution 0.03 1 1 -96% Data collection and ongoing process improvements enabled access to expanded datasets. Cat. 5 - Waste Generated in Operations 125 125 103 0.02% In cases where datasets were inaccessible, estimates were incorporated for waste emission calculations. Data collection and ongoing process improvements enabled access to expanded datasets. Cat. 6 - Business Travel 870 794 771 10% Emission factors were revised in conformity with datasets maintained by government agencies. REPORT CONTENTS ABOUT THIS REPORT SUSTAINABILITY STRATEGY SUSTAINABILITY GOVERNANCE PROSPERITY PLANET PEOPLE APPENDICES 35 | TMX GROUP 2025 ANNUAL SUSTAINABILITY REPORT 19 2024 emissions have been recalculated to reflect changes in our operational boundaries, methodology updates, emission factor improvements and adjusted for inflation. 20 2023 emissions have been recalculated to reflect changes in our operational boundaries, methodology updates, and emission factor improvements and adjusted for inflation. 21 The GHG Protocol requires organizations to quantify emissions from the generation of acquired and consumed electricity, steam, heat, or cooling (collectively referred to as 鈥渆lectricity水). 22 Scope 2 accounting uses both the location-based method, calculating emissions based on the average emissions intensity of the grids where energy is consumed (primarily using grid-average data), and the market-based method, reflecting emissions from a company始s specific electricity choices through contractual instruments like environmental attribute certificates. 23 Category 10, 11, 12 and 14 were not included because they are not applicable to TMX始s upstream or downstream activities or are included in other categories.
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