More than 1,700 workers are represented by eight unions at Asarco's copper mines and processing facilities at five locations in Arizona and Texas.

USW Backs NewRange Studies of NorthMet Mining Project

The United Steelworkers (USW) union today announced its support for NewRange Copper Nickel’s plan to conduct a series of studies for the company’s NorthMet project.

USW Mourns Loss of Conway: Steelworkers’ President Spent 45 Years Fighting for Justice for Workers

Known for his quick wit, formidable negotiating skills and unwavering devotion to justice and fairness, Conway served as the union’s president since his election in 2019, following 14 years of service as international vice president.

Fighting Killer Dust

USW Members Ratify Three-Year First Contract at Cliffs Northshore Mining

The USW also represents approximately 2,000 workers at four other Cliffs mining facilities in Minnesota and northern Michigan. Northshore Mining was the last remaining taconite mine on Minnesota’s Iron Range without a union.

USW Announces Memorandum of Cooperation with NewRange Copper Nickel

We've reached an agreement to work together with NewRange Copper Nickel LLC (New Range) as it looks to mine a variety of critical minerals in northeastern Minnesota.