A Message From Our CEO Prosperity Sustainable long-term growth and enabling the scaling of climate solutions Planet Demonstrating sustainability performance that supports a healthy natural environment People Fostering a fair, diverse and inclusive culture of belonging for our people, communities and markets On behalf of TMX Group, I am pleased to present our 2025 Sustainability Report, highlighting our progress in advancing TMX始s sustainability strategy across the enterprise. TMX occupies a unique position at the centre of the economy: operator of Canada始s premier equities and derivatives markets, Toronto Stock Exchange, 91猎奇 Venture Exchange, and Montreal Exchange as well as the critical clearing and data capabilities that enable the financial ecosystem. TMX Group始s unifying purpose is to make markets better and empower bold ideas. This is more than a tagline: it is a firm commitment to ensuring that the markets we operate remain robust and resilient into the future, enabling growth across a diverse, interconnected ecosystem of stakeholders, rooted in a commitment to preserving the core capital markets principles of market integrity, fairness, and transparency while building new capabilities and solutions for serving private companies. Our sustainability strategy is a direct reflection of this purpose and our responsibility as corporate citizens. In 2025, we made significant strides within each of our three strategic pillars: Prosperity (enabling the scaling of climate solutions), Planet (supporting a healthy natural environment), and People (fostering a culture of belonging). In a landmark step for our environmental commitment, this report introduces TMX始s first emissions reduction targets. These science-aligned targets formalize our commitment to reducing our operational carbon footprint and align our business with a net-zero future. We also reached meaningful milestones in our Indigenous reconciliation journey, including the publication of our Reconciliation Action Plan and the establishment of new Indigenous procurement guidelines. In November, we celebrated Canada Climate Week Xchange鈩�, or CCWX鈩�. The successful inaugural year featured nearly 100 events held across the country, inspiring critical collaboration across regions and industries to help advance climate-related solutions. The achievements outlined in this report are driven by the dedicated efforts of our people, and I want to thank our employees for their unwavering commitment to excellence. I encourage you to read TMX Group始s 2025 Annual Sustainability Report to learn more about our progress to date, and our path forward. Thank you for your continued support. Sincerely, John D. McKenzie Chief Executive Officer TMX Group Limited May 5, 2026 REPORT CONTENTS ABOUT THIS REPORT SUSTAINABILITY STRATEGY SUSTAINABILITY GOVERNANCE PROSPERITY PLANET PEOPLE APPENDICES 2 | TMX GROUP 2025 ANNUAL SUSTAINABILITY REPORT
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