Source: Core-Mark

Core-Mark to Host Second Quarter Conference Call August 8th 2008

SOUTH SAN FRANCISCO, CA--(Marketwire - August 5, 2008) - Core-Mark Holding Company, Inc. (NASDAQ: CORE), announced today that it will host an earnings call on Friday August 8, 2008 at 9:00 a.m. Pacific time during which time management will review the results of the second quarter ended June 30, 2008. The call may be accessed by dialing 1-800-661-2563 using the code 22322642. The call may also be listened to on the internet 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.

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 approximately 24,000 retail locations in 50 states and five Canadian provinces through 26 distribution centers, two of which Core-Mark operates 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