Any big bank in South Korea can remit money to the mainland, as long as you have the swift line number, payee account name and payee account number of the domestic payee bank, but it will be faster if you remit money to China Bank in South Korea. As for whether the Bank of China has a branch in Korea, I don't know. I'm from ICBC. I only know that Industrial and Commercial Bank of China (ICBC) and Bank of China (BOC) have overseas branches in Seoul, South Korea, or choose Bank of East Asia in Wilfred Bungei, South Korea. They have branches (big cities) in our country.

There are two other points to note: 1. Your home city must have a branch of your remittance bank (ICBC or BOC is the best choice for small cities).

According to the regulations of the State Administration of Foreign Exchange, an account can only receive the foreign exchange account equivalent to 5W dollars a year.

I hope my answer is helpful to you.