Core-Mark Announces Fourth Quarter 2010 Investor Call

| Source: Core-Mark Holding Company, Inc. Core-Mark Holding Company, Inc.

SOUTH SAN FRANCISCO, CA--(Marketwire - March 11, 2011) - Core-Mark Holding Company, Inc. (NASDAQ: CORE) announced today that it will host an investor call to review the results of the fourth quarter and year ended December 31, 2010. The call will be held on Wednesday, March 16, 2011 at 9:00 a.m. Pacific time. The call may be accessed by dialing 1-800-588-4973 using the code 29023189. The call may also be listened to on the Company's website www.core-mark.com.

An audio replay will be available for two weeks following the call by dialing 888-843-8996 using the same code. The replay will also be available via webcast at www.core-mark.com for approximately 90 days following the call.

Core-Mark
Core-Mark is one of the largest marketers of fresh and broad-line supply solutions to the convenience retail industry in North America. Founded in 1888, Core-Mark offers a full range of products, marketing programs and technology solutions to approximately 26,000 customer locations in the U.S. and Canada through 24 distribution centers (excluding two distribution facilities the Company operates as a third party logistics provider). Core-Mark services traditional convenience retailers, grocers, drug, liquor and specialty stores, and other stores that carry convenience products. For more information, please visit www.core-mark.com.