CANADIAN NATIONAL RA

MONTREAL - CN (TSX: CNR) (NYSE: CNI) is pleased to announce its support for the recommendations of the Task Force on Climate-related Financial Disclosures (TCFD).

CN is the first North American railroad company to formally support the framework, which promotes more effective climate-related financial disclosures, joining more than 1,500 organizations globally. Putting words into action, CN is proud to release its first TCFD report. The report outlines the incorporation of climate change risks and opportunities in the management of CN's business and operations and our commitment towards a more sustainable future.

'Our 2019 Task Force on Climate-related Financial Disclosure Report release marks another milestone in our commitment to support the transition to a low-carbon economy. For us, an environmentally sustainable future means thinking and acting in the interests of generations to come. We are working to build a strong environmental legacy of leadership, by means of carbon-efficient operations, conserving resources and protecting and restoring natural ecosystems.'

JJ Ruest, president and chief executive officer of CN

CN's TCFD report reinforces the Company's long-standing commitment to transparent disclosure on Environmental, Social, and Governance (ESG) matters through its Delivering Responsibility and CDP (Carbon Disclosure Project) reports. CN's approach to sustainability disclosure aligns with international standards, including the UNGC (United Nations Global Compact), the GRI (Global Reporting Initiative), the SASB (Sustainability Accounting Standards Board), the UNSDG (United Nations Sustainable Development Goals), and the World Bank Mobility Goals. Through its work with the Railway Association of Canada, CN furthermore supports the Pan Canadian Framework on Clean Growth and Climate Change.

CN continues to lead the North American rail industry in fuel consumption, by consuming approximately 15% less locomotive fuel per gross ton-mile than the average of the Class 1 peers. Since 1993, CN has reduced its locomotive emission intensity by 40%, avoiding 46 million tons of carbon. With approximately 85% of its GHG emissions generated from rail operations, the Company aims to continue to decouple its growth from GHG emissions to achieve its long-term science-based target and limit and reduce its absolute direct and indirect emissions.

About the Task Force on Climate-related Financial Disclosures

On December 4, 2015, the Financial Stability Board established the industry-led Task Force on Climate-related Financial Disclosures. The TCFD was asked to develop voluntary, consistent, climate-related financial disclosures for use by companies in providing information to lenders, insurers, investors and other stakeholders, which were published in the TCFD Recommendations Report on June 29, 2017. More information about the TCFD can be found at www.fsb-tcfd.org.

About CN

CN is a world-class transportation leader and trade-enabler. Essential to the economy, to the customers, and to the communities it serves, CN safely transports more than 300 million tons of natural resources, manufactured products, and finished goods throughout North America every year. As the only railroad connecting Canada's Eastern and Western coasts with the Southern tip of the U.S. through a 19,500-mile rail network, CN and its affiliates have been contributing to community prosperity and sustainable trade since 1919. CN is committed to programs supporting social responsibility and environmental stewardship.

Contacts:

Media Investment Community

Jonathan Abecassis Paul Butcher

Senior Manager Vice-President

Media Relations Investor Relations

(514) 399-7956

media@cn.ca (514) 399-0052

investor.relations@cn.ca