Delivering Responsibly is at the heart of how CN is building for a sustainable future. It means moving customer goods safely and efficiently, being environmentally responsible, attracting and developing the best railroaders, helping build safer, stronger communities, while adhering to the highest ethical standards.We are raising our game to deliver for a sustainable future, to make a meaningful difference for our people, our customers and the many communities where we operate .We apply the principles of materiality and stakeholder inclusiveness to prioritize the topics that matter most to our business and our stakeholders – helping us to focus our strategic priorities, refine our reporting, and inform the evolution of our sustainability programs. We conducted our most recent biennial materiality assessment in 2022 and 2023 to identify and prioritize sustainability topics. We applied the principles of double materiality through two key phases leveraging the expertise of a third-party consultant .The first phase began by identifying relevant sustainability topics, taking into consideration our activities, business relationships, stakeholders and sustainability context. Our list of topics were updated based on a desktop review of our previous materiality process, most recent Enterprise Risk Management (ERM) priorities, and sustainability- related information requested by third parties such as regulators, industry associations, standard setters, investors, sustainability raters and peers.