While Costco is known for paying its employees higher wages than its competitors, the union is accusing the company of not sharing its recent success with workers.

About 18,000 Costco workers will go on strike beginning Feb. 1 if their union doesn’t reach a deal with the warehouse retailer, the union announced Sunday. The Teamsters represent Costco workers in 56 warehouses across five states,

Costco’s average hourly rate was approximately $31 an hour at the close of the fiscal year ended Sept. 1, according to the company’s latest annual 10-k filing with the Securit