Rich Products Corp., a company that produces appetizers and snacks at a plant in Waycross, plans to invest $11 million to expand the food manufacturing facility, the company announced this week.

The expansion will increase the plant’s size by 40 percent, allowing capacity to make dough, fillings and packaging to grow by 30 percent, the company said in a statement.

The plant makes snacks such as mozzarella bites and mini stuffed-pizza slices for Rich Products’ Foodservice Division and its Farm Rich brands sold by retailers.

The company also will add at least 55 workers to the 70 already at the Waycross plant.

The plant, one of 19 in the U.S. and 36 globally operated by Rich Products, has been in operation in Waycross since 2002. It had been a meat processing factory.