Wedoany.com Report on Mar 17th, Canada's only primary antimony mine, the Beaver Brook mine located in Newfoundland and Labrador, is currently idle, raising concerns about dependence on critical mineral supply chains. The mine is owned by China's state-owned mining group, China Minmetals, which has controlled it for over 15 years since its acquisition in 2009.

Antimony, a strategic critical mineral, is widely used in flame retardants, lead-acid batteries, semiconductors, and defense technologies. The Beaver Brook mine first went into production in 2012 but has suspended operations multiple times in 2013, 2019, and 2023 due to market volatility. Analysis indicates that operating at full capacity, the mine could produce approximately 6,000 tons of antimony concentrate annually, accounting for about 5% of global supply.

In recent years, the antimony market has faced supply shortages, partly due to declining ore grades and increasing demand. In 2024, following China's implementation of export restrictions, global antimony prices rose significantly, highlighting the risks of market dependence on a single source. BMO analysts Helen Amos and George Heppel noted in a report, "China's 2024 export controls caused prices to quadruple and triggered severe material shortages in Western markets."

This situation has drawn attention from policymakers and industry observers. Investigative journalist Sam Cooper emphasized that this idle Canadian mine underscores Western vulnerabilities in critical minerals. Anthony Vaccaro, President of The Northern Miner Group, mentioned in a 2025 speech, "There are rumors that the Beaver Brook mine is in care and maintenance, but if antimony prices remain high and other projects come online, they could turn on the taps, slightly flood the market, depress prices, and prevent other competitors from entering."

Although Canada has promoted reducing foreign participation in other mining sectors, the Chinese ownership of the Beaver Brook mine remains unchanged. As Western governments accelerate spending on defense and energy infrastructure, demand for antimony is expected to increase. Countries like the United States and Canada have launched initiatives aimed at rebuilding domestic production capacity for critical minerals to reduce reliance on external supply chains.

In the United States, the government has provided funding to domestic antimony producers, such as U.S. Antimony Corporation and Perpetua Resources, to promote a secure supply of the metal. BMO analysts wrote, "Despite recent easing of supply concerns, antimony remains a critically strategic market, with mining and refining capacity highly concentrated in China, Russia, and Tajikistan." Industry insiders say that as countries seek to secure reliable sources of strategic metals, projects like the Beaver Brook mine could become increasingly important.