Shares of the Toronto-based company fell 15% to 18 Canadian cents during morning trading following the disclosure. The company confirmed that scheduled fuel deliveries to the Moa site have ceased, with no clear timeline for when shipments will resume.

Impact of Energy Constraints

The operational freeze comes as Cuba grapples with a systemic energy collapse. According to the company, U.S. sanctions have crippled oil imports, leading to rolling blackouts and a near-total depletion of fuel reserves required for heavy industry. These logistical hurdles have made sustaining large-scale mining activities untenable in the short term.

Sherritt intends to transition its processing plant to standby mode within the next seven days. While primary mining activity remains paused, management stated the workforce will pivot to essential maintenance tasks to minimize the impact of the forced downtime and prepare for an eventual restart of the facility.