Originally a mainland resident, he opened an A-share securities account in the mainland and now immigrated to Macao. Do I need to go through the formalities in a securities company?

You can definitely use it until the mainland ID card expires. That's what I did. I didn't get an account until I came to Macau in February. Because my original ID card expired, he sealed my account. He said he had to go through the formalities to continue the transaction. I'll get my ID card before I close my account, and then I'll ask you the same question. She said that as long as your formalities are not overdue, and as long as you settle the account before the formalities expire, they don't care so much. Now I have all my Macao certificates. Still continue to stock market.