Representatives of the Culinary Union on Monday said more than 300 food service workers at the Las Vegas Convention Center could authorize a strike vote in early December, one month before the city hosts CES.

Culinary Secretary-Treasurer Ted Pappageorge said a strike authorization vote could occur Dec. 7-8 if Sodexo Centerplate — the Convention Center’s exclusive provider of hospitality, food and beverage services — fails to offer an acceptable contract that includes higher pay to union workers.

Sodexo and the union are scheduled to meet in contract negotiations Nov. 29-30. The contract expired last month.

Food and beverage service workers have authorized or could authorize strike votes in four other convention cities as well. Culinary representatives in Orlando, Florida; Sacramento, California; Detroit; and New Orleans, said workers have similar pay issues.