As the world's oldest financial center, the UK is currently the country with the most complete financial services and the most sound institutional framework in the world. The UK regulates all financial service institutions registered in its territory through the UK Financial Market Conduct Authority (FCA).

Estonia joined the World Trade Organization in September 1999. Estonia joined the EU on May 1, 2004. At present, Estonia's economy is developing rapidly and its information technology is relatively developed.
On January 1, 2011, Estonia officially joined the euro zone, becoming the 17th country in the euro zone. Also worth mentioning is the Digital Citizen Program launched in 2007. For the supporters of blockchain, Estonia is one of the most attractive countries.

Singapore Mas announced that it will formally implement the Payment Services Law in 2020, and all crypto exchanges must operate in compliance. That is to say, if you want to be an exchange in Singapore and carry out coins, wallets, contracts, OTC service providers, you must file in advance and comply with the relevant anti-washing rules.