Nationwide, more than 18,000 Teamsters at Costco are demanding a new contract and are prepared to strike if Costco doesn't meet requests, the union said in a release.

The union representing 18,000 Costco workers says executives at the warehouse retailer “abruptly ended” collective bargaining negotiations last week.  “

Hundreds of Costco Teamsters from throughout Southern California held a practice picket today as the January 31 deadline of the Costco National Master Agreement approaches. Nationwide, more than 18,000 Teamsters at Costco are demanding an historic,

The Costco Teamsters represent more than 18,000 workers nationwide.