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.

Nov. 14, 2019: Membership Update

Bargaining with ASARCO Yields No Progress

Local 5613 Rallies for Fair Contract with ASARCO

USW Local 63B Begins Strike over Carley Foundry’s Unfair Labor Practices

About 220 hourly production and maintenance workers this morning began a strike against unfair labor practices at Carley Foundry, which supplies parts for customers in the aerospace industry and others. Click for more...

Negotiations Set to Resume November 14 as ASARCO ULP Strike Continues

We are confirming that negotiations for a new contract covering about 2,000 hourly workers at five ASARCO, LLC, locations in Arizona and Texas will resume on Nov. 14, 2019. More...

Thousands to Strike against ASARCO’s Unfair Labor Practices

About 2,000 hourly workers at five ASARCO LLC, locations in Arizona and Texas voted overwhelmingly to strike against unfair labor practices rather than to accept the Grupo México subsidiary’s so-called “last, best and final” offer. More...