HashKey Group, based in Hong Kong, has launched its Ethereum layer-2 mainnet, HashKey Chain, on December 18. Following a successful testnet phase with over 860,000 wallet addresses and 24.72 million transactions, the mainnet aims to enhance user experience with advanced OP-Stack and Rollup technology. It promises a secure and efficient environment for decentralized applications. This launch aligns with Hong Kong's push for blockchain growth and coincides with legislative efforts to regulate stablecoins. Additionally, four new Virtual Asset Trading Platforms have been approved by Hong Kong's financial regulator.