A sign is shown to mark the countdown to the "Singles' Day" shopping promotion on Nov 11. by a Tmall online shop in Guangzhou, capital of South China's Guangdong province, Nov 5, 2013. Alibaba Group, operator of China's biggest e-commerce platforms, will launch a shopping festival on Nov 11 on its consumer-oriented platform Tmall.com, highlighting big discounts. Sales on Tmall.com reached 13.2 billion yuan ($2.2 billion) on that day last year. [Photo/Xinhua]