A staff member scans a QR code from a customer's Alipay app at Julius Meinl, a coffee shop in Vienna, Austria, on Jan. 9, 2020. China's mobile payment company Alipay started its business in Vienna in 2018. After two years' development, payments with Alipay have been available in many stores in Vienna, allowing the increasing number of Chinese visitors to use the mobile payment here. (Xinhua/Guo Chen)

A sign supporting Alipay payment is displayed at a cashier counter of Julius Meinl, a coffee shop in Vienna, Austria, on Jan. 9, 2020. China's mobile payment company Alipay started its business in Vienna in 2018. After two years' development, payments with Alipay have been available in many stores in Vienna, allowing the increasing number of Chinese visitors to use the mobile payment here. (Xinhua/Guo Chen)

A sign supporting Alipay payment is displayed at Peek & Cloppenburg, a large clothing department store chain in Vienna, Austria, on Jan. 9, 2020. China's mobile payment company Alipay started its business in Vienna in 2018. After two years' development, payments with Alipay have been available in many stores in Vienna, allowing the increasing number of Chinese visitors to use the mobile payment here. (Xinhua/Guo Chen)

Photo taken on Jan. 9, 2020 show a list of merchants supporting Alipay payment in Vienna, Austria. China's mobile payment company Alipay started its business in Vienna in 2018. After two years' development, payments with Alipay have been available in many stores in Vienna, allowing the increasing number of Chinese visitors to use the mobile payment here. (Xinhua/Guo Chen)