Mondelez International Inc., the maker of Oreo cookies and Toblerone chocolates, will raise prices next year on some of its products as the company faces pressure from cocoa and sugar costs.

FILE - Feb. 9, 2011, Nabisco products, a Mondelez International brand: Premium saltines, Triscuits, Ritz crackers and Wheat Thins, at a Ralphs Fresh Fare supermarket in Los Angeles.

Mondelez said the union is misinterpreting the proposed contract. The company wants to move a small number of workers to 12-hour workdays, working seven days over a two-week period, Guzzinati said.