'XX': A couple of letters. Sequence starting from ‘A’, followed by ‘B’ etc. 'O' and 'I' usually are not applied right here to prevent confusion Using the digits 0 or 1 Notice: By subscribing, you let us to ship you the newest tax news, product updates, marketing written content, and https://br-number-search43219.alltdesign.com/what-does-hong-kong-cr-registration-number-mean-50017371