External Verification

Companies Undergoing External Verification in 2022

In 2022, the following companies will undergo external verification of TSM performance. Communities of interest with information relevant to the external verification process for a particular facility are encouraged to contact the verifier with this information. As verifiers are identified for the below scheduled verifications, their contact information will be added alongside that of the company being verified.



Hudbay Minerals 

Newmont Mining (Porcupine, Musselwhite)

Pan American Silver



Teck (Greenhills, Trail, Elkview, Fording River)

Vale – Dianne S. Rubinoff, Rubinoff Environmental Inc. (416)-488-5032

Yamana Gold

TSM Verifier Training

Individuals interested in becoming TSM verifiers can complete the TSM online training program at their own pace or register for the Mining Association of Canada’s annual verifier training workshop. The next workshop for verifiers will take place in January 2023. For more information, please visit our Eventbrite page.

TSM Verification Guide

In December 2021, the Mining Association of Canada published new policies and guidance realted to the TSM external verification process. The new TSM Verification Guide provides verifiers with guidance on expectations related to the verification process, and includes in appendices an updated Terms of Reference for Verifiers, a new Verification Oversight Policy, and a template for a public Verification Summary Report.

TSM Terms of Reference for Verifiers

To become a TSM Verifier, qualified individuals must meet meet the conditions outlined in the TSM Terms of Reference for Verifiers.

List of TSM Verification Service Providers

Contact details for qualified TSM verifiers are made available on this public list.

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