WBAI [500.com] 6-K: 500.com Entered into Cooperation Agreement with the Tianjin
[500.com Entered into Cooperation Agreement with the Tianjin Municipality Sports Lottery Administration Center to Develop Physical Sales Channels SHENZHEN, China, May 17, 2018 — 500.com Limited (NYSE: WBAI) (“500.com” or the “Company”), a leading online sports lottery service provider in China, annou]