BTCC  (btcc.com) was launched in Shanghai in 2011 as a provider of Bitcoin exchange services.

Huobi (huobi.com) was launched in Beijing in 2013 as a provider of Bitcoin and Litecoin exchange services.

Segregated witnesses will be activated on Litecoin, and Bitcoin exchange Bitfinex appears to be in serious trouble.

Ever since Bitcoin’s inception its trust-minimizing consensus has been enabled by its proof-of-work algorithm. The work is performed by so-called miners; power hungry machines

F2Pool is now supporting segregated witnesses, and Russia is seeking to regulate Bitcoin.