Yihaodian.com, the Walmart-backed online food seller, posted a 77 percent increase in sales in 2013, according to company head Yu Gang.

Revenue reached 11.54 billion yuan last year from 6.45 billion yuan in 2012, as the country's largest B2C food vendor doubled its stock-keeping unit to 3.4 million, Yu said at a press conference in Shanghai.

The number of registered users almost doubled to 57 million by the end of 2013.

Known for its imported gourmet portfolio, Yihaodian sold 250 million units of imported food.

Almost 40 percent of imported diary products in China were sold from the Yihaodian channel.

Yiihaodian initiated its delivery of fresh food, such as fruits and vegetables, to Beijing, Shanghai and Shenzhen to further tap the online grocery market. Such service will be extended to Chengdu and Wuhan next year.

The e-commerce site aims to further expand its product lineup to 6.8 million in 2014.

Contact the writer at hewei@chinadaily.com.cn