The move could pave the way for the former car trader to relocate its headquarters outside the Chinese Mainland, with Singapore, Hong Kong and the U.S. as possible destinationsKey Takeaways:Cango announced it completed the sale of its China business, including its car-trading and financing services in a deal valued at $352 millionThe company also announced a major overhaul of its board, bringing in new members with financial expertise, reflecting its new focus on bitcoin miningWhere is recently minted bitco ...