The company hoping to eventually develop a graphite mine in Grenville-sur-la-Rouge has been halted from trading on the Toronto Stock Exchange (TSX).

On August 12, the TSX announced that trading in shares of Canada Carbon (CCB) would be halted on August 14 due to the company’s failure to pay Sustaining Fees. Those are the fees companies pay annually to be listed on the stock exchange.

The decision to halt trading of Canada Carbon shares on the TSX was made by the Canada Investment Regulatory Organization (CIRO), which is the national self-regulatory organization which oversees all investment dealers and trading activity on debt and equity marketplaces in Canada.

On March 18, 2025, the Commission de protection du territoire agricole du Québec (CPTAQ) ruled against authorizing Canada Carbon’s proposed Miller graphite project, arguing that it would have a negative impact on the general interest of protecting the land and agricultural activities. The CPTAQ is also not convinced of the economic benefits associated with the Miller project.