RT-Mart

 
RT-MART International Ltd. (), trading as RT-Mart (), is a hypermarket chain in Taiwan. Its headquarters is in Neihu District, Taipei. The company opened its 23rd store in 2004. RT-Mart and Auchan created a joint venture, Sun Art Retail Group Ltd.
In 2010, in terms of turnover, RT-Mart became the first foreign-based hypermarket chain in mainland China, compared to other foreign hypermarkets such as Walmart, Tesco, and Carrefour.
Sun Art Retail Group, a joint venture of Ruentex and Auchan, made its initial public offering (IPO) at the Hong Kong Stock Exchange in 2011. 19.4% of its capital is currently held by institutional investors and the public.
As of September 2012, Sun Art has 12% of the hypermarket share in mainland China. 
On 28 June 2013, a milestone in Auchan's expansion in Asia was reached with the opening of its 300th hypermarket under the name of RT-Mart in the Hechuan district of Chongqing, China. 