2025 Annual Sustainability Report

Appendix B: Climate-Related Risk & Opportunity Data We track the resource-related exposure of our markets and the evolution of the clean technology, renewable energy and low-carbon mineral sector on our markets, and of our own voluntary carbon offset credit trading platform (TVCM). SECTOR RISK METRICS16 2025 2024 2023 Oil and Gas % of overall market capitalization on TSX and TSXV 6% 8% 9% % of overall volume traded on TSX and TSXV 13% 14% 16% Mining % of overall market capitalization on TSX and TSXV 18% 12% 12% % of overall volume traded on TSX and TSXV 43% 36% 34% Utilities and Pipelines % of overall market capitalization on TSX and TSXV 7% 8% 7% % of overall volume traded on TSX and TSXV 5% 6% 5% SECTOR OPPORTUNITY METRICS17 2025 2024 2023 Clean Technology and Renewable Energy Issuers on TSXV 54 58 58 Issuers on TSX 28 33 35 Issuers on TSX that are TSXV Graduates 10 11 10 Combined TSX & TSXV market capitalization (in billion) $46 $42 $47 % of overall market capitalization on TSX and TSXV 1% 1% 1% % of overall volume traded on TSX and TSXV 2% 3% 3% Low-Carbon Mineral Issuers18 TSX & TSXV issuers contributing at least one metal or mineral 632 639 688 TSX & TSXV issuers exclusively producing metals/minerals for low-carbon economy 201 204 230 Overall mining sector proportion of low-carbon mineral issuers 19% 19% 21% % of overall market capitalization on TSX and TSXV 2% (10% of mining sector) 1% (11% of mining sector) 1% (12% of mining sector) % of overall volume traded on TSX and TSXV 8% 6% 6% The Voluntary Carbon Marketplace (TVCM) Number of Firms 64 59 55 Number of Users 133 166 153 REPORT CONTENTS ABOUT THIS REPORT SUSTAINABILITY STRATEGY SUSTAINABILITY GOVERNANCE PROSPERITY PLANET PEOPLE APPENDICES 33 | TMX GROUP 2025 ANNUAL SUSTAINABILITY REPORT 16 TSX/TSXV Market Intelligence Group Report (MiG) - December 2023, December 2024 and December 2025. 17 Idem. 18 Represents a subset of the mining sector that produces metals and minerals used in the transition to a low-carbon economy (Aluminum, Chromium, Copper, Graphite, Iron, Lead, Lithium, Manganese, Molybdenum, Silver, Titanium, Uranium (U308), Vanadium and Zinc).

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