Canaan CEO Nangeng Zhang:Gradually, countries such as the U.S., Russia, and Kazakhstan have started to make their mark in the bitcoin mining industry, by Colin Wu(Wu Blockchain)December 14, 2020 Canaan CEO Nangeng Zhang:Gradually, countries such as the U.S., Russia, and Kazakhstan have started to make their mark in the bitcoin mining industry, https://t.co/AdsWg2k87v Source Tagged : All News / Bitcoin / Bitcoin Mining / Canaan / Countries / Kazakhstan / Mark / Russia / SourceTwitter / U.S.