In China, Wal-Mart meets its match: Sun Art Retail Group

At the store in Shanghai, signs promote "everyday low prices", along with temporary promotions - just like Wal-Mart Store Inc does.

But this isn't an outpost of the world's largest retailer. It's an RT-Mart, a branch of a chain that is doing better in China than Wal-Mart.

Wal-Mart ranks No 3 in market share in the big store sector and faces stiff competition from local and regional players like the No 2 that is Sun Art Retail Group, RT-Mart's parent.