GPM Investments, LLC announced the signing of an extended 32-month master supply agreement with Core-Mark International, Inc. as part of a consolidation of the company’s wholesalers and continued growth strategy. The agreement will increase the number of GPM store locations for which Core-Mark provides service from 865 to 1,055. Under the supply agreement, Core-Mark agreed to provide transition services to facilitate the transfer of services from certain of GPM’s previous wholesalers. Core-Mark will also continue offering support services for GPM’s imports and specialty products program. Core-Mark distributes fresh food and broad-line merchandise to convenience stores in the United States. Core-Mark will continue to be GPM’s largest single supplier, distributing products across 29 different categories to its portfolio of approximately 1,400 stores.