United States-listed Dangdang Inc, a major e-commerce player in China, and Yhd.com, a Chinese online supermarket that is majority-owned by Wal-Mart Stores Inc, are expected to team up to achieve a breakthrough in market share.

Yhd.com confirmed on Thursday that the Shanghai-based company will form an alliance with Beijing-based Dangdang Inc. The two companies are scheduled to announce their "marriage" in Beijing on March 5.

This type of partnership is becoming more common in China's e-commerce sector.