Chinese Bitcoin mining hardware firm under investigation in US Posted On November 21, 2025 Bitmain Technologies, a Beijing-based crypto mining rig firm, is under investigation over potential surveillance in the U.S. Tags:Crypto, Doge, News Related Posts Swiss bank Sygnum partners with Debifi to launch multi-sig Bitcoin loan platform Analyst Warns Bitcoin’s $150K Surge Could Be Followed by Decade-Defining Collapse CBDCs and DeFi: Can Central Banks and Crypto Coexist? About The Author DogeMan