Core-Mark Holding Company CEO Michael Walsh to Retire January 18th 2013, to be Succeeded by Thomas Perkins

Core-Mark Holding Company

today announced a leadership transition that is the culmination of a multi-year succession plan under which current President and Chief Executive Officer J. Michael Walsh will retire on January 18, 2013 and be succeeded by Thomas B. Perkins, Core-Mark's current Senior Vice President of Resources. In connection with his promotion to President and CEO, Mr. Perkins will be appointed to the Company's Board of Directors. Mr. Walsh will remain on the Board of Directors following his retirement from management. Mr. Perkins has successfully served in a number of important positions with increasing responsibility during his more than 19 years with the Company, including President of two distribution centers, Vice President of the U.S. Divisions and, most recently, Senior Vice President of Resources. In this current management role, Mr. Perkins leads the team providing IT, HR and operations support services to all of Core-Mark's operating divisions. Mr. Perkins also plays a vital role in a wide range of activities across the Company, including strategy development, business and corporate development, marketing, customer relationship management, pricing analyses, bidding and profitability reviews. Mr. Perkins has an established track record of increasing sales and profits in each of the operating entities he has led within Core-Mark. He was the manager responsible for the Company's efforts into "third party logistics," involving the successful planning, start-up and subsequent operations of a major distribution center in Arizona. Recently, Mr. Perkins was in charge of planning, mobilizing and creating the infrastructure in an extremely short timeframe that resulted in the successful supply of over 1,000 stores located in the southeastern U.S., leading to approximately $600 million of new annualized revenue. His consistent leadership performance over the years led to the Board's decision to appoint him as Mr. Walsh's successor. "On behalf of the entire Board of Directors, I want to thank Mike for his tireless efforts spanning two decades in which he helped to build Core-Mark into an industry leader, and I look forward to continuing to work with him closely on the Board in the years ahead," said Randy Thornton, Chairman of Core-Mark's Board of Directors. "We are also very pleased to name Tom as the Company's next President and CEO. After nearly twenty years with the Company, he knows Core-Mark's day-to-day business inside and out and has been integral to the Company's success. In addition to his breadth of skills and experience, including the insights he gained through the Company's tailored management development program, Tom's strategic contributions and proven leadership abilities make him an excellent choice to lead Core-Mark into the future. We are confident that under Tom's stewardship, Core-Mark will continue to deliver superior value for customers and shareholders."