Warehouse club operator Costco Wholesale Corp said it will make its China market debut through the opening of an online flagship store on Alibaba Group Holding Ltd's Tmall Global Platform, a wing of Tmall.com. Costco's online store launch targets consumers in mainland China. The warehouse chain's online store will initially provide a range of products including food and healthcare product listings at competitive prices, the company said in a statement. Costco said it will continue to introduce new products and brands to Chinese customers while Tmall.com's warehouse store helps to cut logistics costs and delivery time. (Reuters)