The operator of the Red Chris gold and copper mine in northwestern British Columbia says it is moving ahead with a planned expansion of its underground operations, drawing on safety lessons from a collapse last year. Multiple reports say the prior collapse trapped three workers and prompted a reassessment of working conditions and safety measures at the site. The expansion is framed as a continuation of the mine’s development plans, with the company stating that safeguards informed by the earlier incident are being incorporated into the underground work. The reporting also places the mine within broader narratives of investment and resource development, but the core focus across sources is the safety response following the collapse. The company’s approach emphasizes implementing revised procedures and precautions before and during the expansion, rather than changing the overall direction of the project. Details on the specific engineering changes or timelines are not included in the provided excerpts.