TSM Performance Rating System

Mining facilities annually self-assess their performance against each indicator under the TSM protocols. For each indicator, they assign a letter grade that reflects their performance, ranging from Level C to Level AAA. The performance results of each facility are published in the annual TSM Progress Report available on the COMP website once public reporting becomes mandatory. Facilities must externally verify their results every three years.

One of the key strengths of TSM is that mining companies are measured where the mining activity actually takes place— at the facility level. The results provide local communities with a meaningful view of how a nearby mine is faring.

COMP has established the goal of having all of its member facilities achieve a Level A or better in all indicators and meet all of the requirements of the Crisis Management and Communications Planning Protocol.

Level A is broadly defined as good practice and Levels AA and AAA are defined as excellence and leadership.