Independent practitioner’s reasonable assurance report of Teck Resources Limited’s Performance Statement of Carmen de Andacollo

Effective COI AAA ● Made enquiries and conducted interviews of Engagement and management of CdA: Dialogue ○ To observe their understanding and implementation of policies and practices in place for COI engagement and dialogue. [...] ● Obtained and inspected policies and management programs to review the alignment of policies and commitments with the MAC Safety and Health Framework. [...] ● Reviewed and inspected the programs for monitoring and tracking the risks and controls related to health and safety. [...] responsibly and to ● Obtained and assessed Teck's standards of ethics, safety, approach to supply chain to confirm health, human rights, and that policies and practices are in social and environmental place to define their expectations in performance comparable the value chain with respect to to those of the reporting health and safety, environmental, company. [...] Labour Rights Respect the rights of Fully ● Conducted interviews with CdA workers by eliminating Meets management to observe their harassment and understanding of the organization’s discrimination, respecting policies, availability of relevant freedom of association policies and training and and collective bargaining, mechanisms in place to respect the and providing a right to freedom of associati.