...they are Chinese Mauritians (third- or fourth-generation Chinese immigrants)~the Founder of ABC Mauritius is Moilin Jean Ah-ChuenDo you really want to use ABC? ABC Mauritius is basically a Chinese run bank now with all Chinese management. I thought their focus was now as an Asian offshore hub in Africa.
Not a hugely profitable bank either.
https://www.abcbanking.mu/wp-content/uploads/2021/11/AR2021_2022_WEB.pdf
https://en.wikipedia.org/wiki/Moilin_Jean_Ah-Chuen
so it is normal for many of the bank's customers to be Chinese. It started out as a business between Mauritius and China.