Trading Partners



GDSN® Initiative

From its humble beginnings in 1888 as Glaser Bros., a single tobacco storefront in San Francisco, Core-Mark has grown into one of the largest distributors and marketers of consumer goods in North America.

While the past century has brought incredible changes to our business and the world in which we operate, our goal is the same today as it was over 120 years ago — to provide customers with the best possible service and to help them grow their sales and profits.

Core-Mark is excited to announce we have recently entered into a multi-year supply agreement with Walmart to be the primary distributor for candy, tobacco and select snack foods to 530 Walmart stores across 5 states (Arizona, California, New Mexico, Nevada and Utah).

Walmart requires Core-Mark to share supplier product information via data synchronization utilizing the Global Data Synchronization Network (GDSN). We have partnered with 1WorldSync, our GDSN solution provider, to enable us to share product information with Walmart via the GDSN. Core-Mark relies on you, the brand owners and manufacturers to receive critical, accurate and up-to-date product information required by Walmart. Please review the documentation on the left and fill out our Trading Partner Form below to start synchronizing your product information today!


1WorldSync Customer Support
+1 866.280.4013

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