It takes three months for the CSRC, a subsidiary of a domestic securities company in Hong Kong, to put on record. According to the inquiry of official website of CSRC, domestic securities companies need to go through a series of legal, regulatory and approval procedures to set up Hong Kong subsidiaries, including submitting relevant application documents to the Hong Kong Securities and Futures Commission (CSRC), and meeting relevant laws and regulatory requirements in Hong Kong. The specific time depends on the completeness and complexity of the application materials and the approval progress of the Hong Kong regulatory authorities. The whole process takes three months.