Di Gang, deputy director of the Digital Currency Research Institute of the People's Bank of China, mentioned that the authorities had conducted some enterprise research earlier and found that many enterprises had problems such as single channels in international trade, high costs, and low efficiency. Some enterprises expressed their desire to participate in bilateral trials similar to those between mainland China and Hong Kong, using digital renminbi to reduce cross-border costs. He believes that the two places can study the cross-border payment applications of digital renminbi in various bulk commodity trades or service trades under the bilateral cooperation framework. Di Gang mentioned at the Hong Kong Fintech Week Forum that the digital renminbi application has supported mobile phone number registration accounts in more than 100 countries and regions. In order to facilitate the public to open wallets, the application supports the association of overseas VISA, MasterCard, and wallets, and recharges the wallet. Hong Kong users can also use local bank accounts in Hong Kong to recharge the wallet through Transfer Express, and the process does not charge any handling fees.