Core-Mark to Host Second Quarter Conference Call August 9, 2007


SOUTH SAN FRANCISCO, CA--(Marketwire - August 6, 2007) - Core-Mark Holding Company, Inc. (NASDAQ: CORE) announced today that it will host an earnings call Thursday, August 9, 2007 at 9:00 a.m. Pacific time where management will review the results of the second quarter ended June 30, 2007. The call is expected to last approximately one hour.

The call may be accessed by dialing 866-877-3102 or for international callers 706-679-6987 using the code of 12302020. You can also listen to the call on the internet webcast at www.core-mark.com.

An audio replay will be available for two weeks following the call by dialing 800-642-1687 or 706-645-9291 using the same access code. The replay will also be available via webcast at www.core-mark.com

Core-Mark

Core-Mark is one of the largest broad-line, full-service wholesale distributors of packaged consumer products to the convenience retail industry in North America. Founded in 1888, Core-Mark provides distribution and logistics services as well as marketing programs to over 21,000 retail locations in 45 states and five Canadian provinces through 24 distribution centers, two of which Core-Mark operate as third party logistics providers. Core-Mark services traditional convenience retailers, grocers, drug, liquor and specialty stores, and other stores that carry consumer packaged goods. For more information, please visit www.core-mark.com

Contact Information: Contact: Ms Milton Gray Draper Director of Investor Relations 650-589-9445 X3027