On March 31, Teck announced that its Quebrada Blanca Phase 2 (“QB2”) project has produced its first primary copper concentrate (bulk concentrate), as the project progresses through commissioning and start-up and ramps up its total production to 2023. The QB2 project incorporates leading sustainability practices, including the first large-scale use of desalinated seawater for mining in the Tarapacá Region of Chile, and there is an agreement in place to obtain 100% renewable energy from AES Andes for the operation beginning in 2025. Teck has also engaged with local communities in the QB2 project area since 2012, including working collaboratively to create tangible benefits in the region, which will continue throughout the life of the operation. Teck owns an indirect 60% interest in Compañía Minera Teck Quebrada Blanca SA (“QBSA”), the owner of QB2. Sumitomo Metal Mining Co., Ltd. together with Sumitomo Corporation have a collective indirect 30% interest in QBSA. ENAMI has a 10% non-financial interest in QBSA. Teck at Expomin In this edition of Expomin, Teck assumes a strategic partner role, leading the space the vice-president of Teck South America, Amparo Cornejo, in her role as president of the Expomin 2023 International Congress. In addition, Teck will have a stand in the mining pavilion where some of the main pillars of its Sustainability strategy will be presented: About Us, Imagine yourself at Teck (learn about and apply for job opportunities), QB2 Project, Sustainability and Archaeological Heritage and Social Management. The mining company will also have an important participation in the Expomin Congress, participating in six panels that will address, among other topics: The Challenges of Mining, People Development, Inclusion and Gender Equity and Trends in Sustainability and Socio-Environmental Axes. The full program is available at www.expomin.cl/programa-congreso/ About Teck As one of Canada’s leading mining companies, Teck is committed to responsible mining and mineral development with major business units focused on copper, zinc and steelmaking coal. High-quality copper, zinc and steelmaking coal are necessary for the transition to a low-emissions world. transition to a low-carbon world. Headquartered in Vancouver, Canada, Teck’s shares are listed on the Toronto Stock Exchange under the symbols TECK.A and TECK.B and on the New York Stock Exchange under the symbol TECK. Learn more about Teck at www.teck.com or follow @TeckResources.