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| Horne copper smelter |
Glencore and Canadian Governments Negotiate Smelter Continuity
The Horne Smelter in Quebec faces potential closure due to stricter arsenic emission rules. Glencore has paused nearly C$1 billion investment, signaling uncertainty. As a result, Canada and Quebec are negotiating financial and legislative support to preserve this critical facility, maintaining North America’s copper processing capacity.
Meanwhile, Quebec proposes delaying the new 15 nanograms per cubic meter arsenic cap until 2029 and sustaining it until 2033. Ottawa may provide roughly C$150 million to help cover pollution-control upgrades. Therefore, these measures aim to balance environmental compliance with continued industrial operation.
The smelter processes both copper concentrate and recycled materials, including electronic waste, totaling around 100,000 tonnes annually. Consequently, the Horne facility remains vital to the continent’s circular metal supply chain, supplying copper, gold, silver, platinum, palladium, and sulphuric acid to manufacturers across Canada and the United States.
Strategic Implications for Copper and Circular Metals
North American copper supply is tight, and closure of Horne would intensify shortages. Canada provides approximately 17% of U.S. copper imports, second only to Chile. In contrast, industrial clients such as Nexans depend on the smelter for nearly half of their cathode supply, underscoring the facility’s strategic role.
However, public health concerns persist. Residents face elevated risks from chronic arsenic exposure, and legal actions over historical emissions continue. Meanwhile, Glencore asserts that ambient arsenic levels are influenced by external environmental factors, yet local scrutiny remains high.
Maintaining Horne operations preserves not only copper output but also North America’s scrap and circular metal processing capabilities. This ensures continuity in both primary and recycled metal flows, supporting industrial and environmental objectives simultaneously.
ScrapInsight Commentary
Securing the Horne Smelter mitigates a critical copper supply risk for North America and protects circular metal recycling channels. Continued operations may stabilize prices while encouraging investment in emission-compliant infrastructure. Long-term, this balance could enhance sustainable metal supply chains and support strategic industries reliant on copper and precious metals.
