China Gold CSH mine restart: slope failure lessons for pit design teams
Reviewed by Joe Ashwell

First reported on MINING.com
30 Second Briefing
China Gold International Resources has restarted open-pit mining at the Chang Shan Hao (CSH) gold mine in Inner Mongolia after a 22 May slope instability halted operations for nearly five months, while keeping 2026 guidance at 70,732–83,592 oz of gold. Remediation followed geotechnical assessments and included haul road restoration, removal of loose rock, reinforcement of the landslide body, new drainage systems and continuous slope monitoring, enabling regulatory sign-off in late September. The processing plant ran throughout on low-grade stockpiles, and the mine will now blend fresh ore with stockpiled material to stabilise throughput and grades.
Technical Brief
- Localised slope instability on 22 May 2026 triggered a precautionary shutdown of the CSH open pit.
- Failure mechanism appears as a shallow landslide within the pit wall, with no equipment damage reported.
- Geotechnical investigation relied on post-failure slope inspections to map the slide body and loose rock zones.
- Remediation included mechanical scaling of unstable blocks and structural reinforcement of the landslide mass.
- New surface drainage was installed to divert runoff away from the affected wall and reduce pore pressures.
- Continuous slope monitoring is now in place, implying ongoing survey or instrument-based tracking of wall movement.
- Chinese emergency management authorities required formal filings and safety verification before authorising mining to resume.
Our Take
With China Gold International’s CSH and Jiama assets both tagged to copper and gold in our database, a five‑month failure‑related shutdown at one mine increases operational concentration risk at the remaining flagship asset from a portfolio and covenant‑testing perspective.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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