Posted: May 7, 2014 at 2:39 a.m.

Wal-Mart unit buys California tech firm Wal-Mart Global eCommerce, an Internet technology company within the world's largest retailer, has acquired product-search company Adchemy in California's Silicon Valley, adding more than 60 technology specialists to one of the retailer's fastest-growing business segments, Wal-Mart said Tuesday.

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