Compass Minerals announced that its unionized miners at its Goderich salt mine in Ontario have ratified a new five-year collective bargaining agreement (CBA). The five-year term represents the longest CBA ever negotiated at the Goderich mine since it first opened in 1959.

“This agreement is a reflection of our shared commitment to treat each of our employees with fairness and respect as we partner together toward our common objective to operate safely and responsibly,” said Peter Baker, vice president of operations at Compass Minerals’ Goderich mine. “We strive to be an employer of choice and recognize our responsibilities as part of the Goderich community.”

The CBA clarifies a number of operating protocols at the mine and codifies a competitive pay and benefits package for the term of the agreement.

Located 1,800 ft beneath Lake Huron, the Goderich mine is the largest underground salt mine in the world, producing about 8 million metric tons per year. The rock salt produced at the mine is shipped to hundreds of communities around the Great Lakes and along the St. Lawrence Seaway for de-icing purposes. Some of the salt is packaged for distribution and sale at retailers in North America. The salt is also sold in bulk to manufacturers that make plastics, detergents, disinfectants and other important products.