HSBC can transfer money to Bank of China or HSBC in the Mainland, or log in to online banking and transfer it to a mainland account by wire transfer. Only when it is converted into Hong Kong dollars or US dollars can it be transferred, and it cannot be directly converted into RMB. At present, Hong Kong banks transfer funds to the mainland mainly by wire transfer and cash. Due to the restriction of the People's Bank of China, the amount of telegraphic transfer in domestic accounts is 50,000 USD per person per year, so those larger than this amount can be transferred to the accounts of relatives and friends, but now the country strictly checks foreign exchange, so many times domestic banks will ask you to provide payment certificates and other documents.