 OVERLAND PARK, Kan.--BUSINESS WIRE--Compass Minerals NYSE: CMP, a leading global provider of essential minerals, today announced that unionized employees at its Goderich mine 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 