The Hong Kong Stock Exchange (HKEX) has tightened listing rules for at least five companies seeking to shift to core crypto treasuries or DAT. The exchange group has questioned their compliance with regulations prohibiting large liquid holdings, sources told Bloomberg. Further, the HKEX has reiterated that all listing applicants must operate “viable and sustainable” businesses. Per the stock exchange’s framework, companies aiming to transform into Digital Asset Treasury (DAT) entities must integrate crypt ...