May 10, 2021
Tierra Group to conduct the San Jose TSF Technical Review for Quintana Resources
May 6, 2021
Tierra Group to provide Quintana Resource Corporate Tailings Management Standard
May 5, 2021
Calibre awards Tierra Group the San Jose EAP
April 28, 2021
Minera Andina del Sol S.R.L. awards Tierra Group International the contract for an Engineering Review of Phase 7
April 21, 2021
Tierra Group to provide Final Engineering Design for the Stage 4 TSF for the El Limon project
April 19, 2021
Tierra Group will provide an Independent Technical Review of Asarco’s four active TSFs
April 15, 2021
Doe Run has engaged Tierra Group for Construction Support of the Sweetwater 1138 Raise
April 7, 2021
Tierra Group will perform a Geotechnical Field Investigation for a proposed Underground mine for Calibre Mining
March 26, 2021
Tierra Groups assists Hecla-Klondex with the Aurora TSF1 FPCP and TSF2 Closure Review
March 12, 2021
Tierra Group to support construction of two lined ponds by serving as Resident Engineer for a mine in Nevada