Hospital laundry services for Saskatchewan will be centralized in Regina and owned and operated by a private company, a move promoted as leading to cost savings but criticized by workers' unions.

K-Bro Linen Systems will build a new plant in Regina to handle linens from all areas of the province.

Health Minister Dustin Duncan says doing this will save the province about $93 million over the next 10 years.

He says the new service will provide a high standard of infection prevention and improved patient safety.

Duncan also says sharing services between health regions will also create efficiencies and contribute to cost savings and a more sustainable health system.

But the union representing laundry workers says the move means 300 people will be losing their jobs.

Barbara Cape, president of Service Employees International Union-West, said the union asked to see the business case for the private, single operator, but was told the information is private.

"Where is the transparency for the citizens of Saskatchewan?" Cape said. "They have a right to know as they will be the ones called upon to pay the extra cost associated with higher borrowing rates and profits."

The move to a single operator follows recent changes in how laundry was handled in different regions.

In 2011, the Saskatoon Health Region closed its central laundry plant after a hoist fell from the ceiling of the facility.

The Valley View Centre in Moose Jaw, which currently processes linen for the Five Hills Health Region, announced in February 2012 that it was closing.

"The central laundries now serving Saskatchewan's health care system, located in Regina, Prince Albert, Weyburn, Yorkton and Moose Jaw, are aging and outdated," according to 3sHealth, the agency that looks after shared services for Saskatchewan's health sector, including regional health authorities and the Saskatchewan Cancer Agency.

"Several million dollars in capital expenditures would be required to improve all of the facilities," the agency added. "These plants will be replaced by the new state-of-the-art plant once it is operational."