Bitmain have their tentacles in other cryptocurrencies too, e.g. Ethereum: "As recently as April 2018, mining equipment provider Bitmain Technologies announced an Ethereum version of its POW application-specific integrated circuit (ASIC) hardware, a decision that is particularly notable in the context of Casper's planned switch to POS... With this much capital, Bitmain could theoretically continue supporting development of the POW version of Ethereum by itself, even without the consent of Ethereum leader Vitalik Buterin." [0] You could call them the "great vampire squid" of the crypto world.