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Glencore suspends crucial investments to Quebec Horne Smelter

Glencore halted $300 million emissions upgrade at Horne Smelter due to lack of regulatory certainty; plant emits 39.1 ng/m³ arsenic, exceeding provincial standards, union warns 1,000 jobs at risk.

  • Glencore Canada said in a news release Tuesday that it has suspended a $300 million investment tied to emissions reductions at the Horne Smelter, Rouyn‑Noranda, Quebec, as conditions to proceed 'aren't in place.'
  • Glencore says it lacked regulatory certainty and therefore repeatedly asked the Quebec government to adjust timelines and lock in stable regulatory conditions before investing, but negotiations since the summer of 2025 failed to secure assurances.
  • Glencore had proposed nearly $1 billion in modernization plans, with the smelter averaging 45 ng/m³ between March 16, 2023 and March 15, 2024 under the 2023 ministerial authorization requiring 45 ng/m³ and 15 ng/m³ .
  • Scaling back investments at the CCR refinery in Montreal, Glencore warned the suspension raises the threat of closure by March 2027 and endangers about 1,000 jobs.
  • Local unions and doctors urged intervention as the Quebec Superior Court class‑action advances and Dr. Tanguy Veret pressed for safeguards to protect residents.
Insights by Ground AI

20 Articles

Center

All are still hoping for a solution that combines respect for the environment, public health and local economy.

·Montreal, Canada
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Lean Left

As of Tuesday, the Horne Foundry in Rouyn-Noranda is beginning a “demobilization plan” for its work teams in preparation for a possible closure within a year, it said in a press release.

·Montreal, Canada
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Lean Left

Quebec said no to a $149 million cheque requested by Glencore to clean up the Horne Foundry, which is now threatening to close its doors.

·Montreal, Canada
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Winnipeg Free Press broke the news in Winnipeg, Canada on Tuesday, February 3, 2026.
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