Mining City is a project that provides Bitcoin (BTC) mining investment services through Cloud Mining. Its goal is to help investors own Bitcoin at a great price, by lowering electricity costs and supporting major, renowned partners in the cryptocurrency mining industry. Mining City compared to other Bitcoin mining projects is that Mining City cooperates with the main players in the cryptocurrency mining industry, in Bitcoin mining, an important factor that decides the efficiency is that the larger the group of “Digging of swimming pools ”, the greater the competitiveness and vice versa.