Unifor members at Local 3018 were forced to take strike action at the Gibraltar copper mine on June 1, 2024 after the company refused to negotiate basic terms of a new collective agreement. Negotiations for a new contract began in February 2024. After many hours of meetings, Unifor says that the company has shown little interest in avoiding a disruption at the copper mine.

Taseko has five mining projects in various stages of development but Gibraltar is currently the only mine actively producing. The Gibraltar Mine is the second largest open-pit copper mine in Canada and the largest employer in the Cariboo region. The current collective agreement expired on May 31, 2024.

Local 3018 represents 550 workers at the copper mine north of Williams Lake in British Columbia.