workers

Calls to the company were not immediately returned Tuesday.

The mine laid off more than 80 workers in 2016.

That compares to 30% of wage earners in the top 25%.

This is the first national strike by the UAW since 2007, when the union shut down General Motors for two days.

The Gillette Office of the Department of Workforce Services, 551 Running West Drive, will extend its hours this week and next week.