The HBUS platform had been in development since January of 2018. They registered with the Financial Crimes Enforcement Network (FinCen) ahead of their launch on March 21, 2018.  Frank Fu was appointed the CEO of HBUS on June 25, 2018, coming from his last roles at Meitu as managing director and international investor.  HBUS was a sponsor of the Blockchain Connect Conference in San Jose, California on June 26th to June 27th.  They launched their platform on July of 2018, opening for registration on July 6th and for trading on July 10th.  On July 17th, 2018 they opened their API to the public.  HBUS is the strategic partner of Huobi meaning they are not a branch or affiliate, they are two seperate companies and entities. 
HBUS currently offers trading of many digital assets, including Tether (cryptocurrency), Bitcoin , TrueUSD, Ethereum , Bitcoin Cash, Ethereum Classic, Litecoin , Dash, and Qtum. Their platform uses some of the same security features of Huobi, including cryptocurrency wallet technology, distributed architecture, and a DDos-mitigation layer. HBUS uses the security verification system Onfido to verify users.
HBUS is a FinCen registered MSB. They operate in 41 US States with the exception of Alabama, Connecticut, Georgia, Louisiana, New York, North Carolina, Hawaii, Vermont, and Washington.