Four Malaysians - the Tan brothers of Mr DIY Group (M) Bhd, Westport Holding Bhd's G Gnanalingam and Greatech Technology Bhd co-founder Tan Eng Kee - made their debut in the Forbes billionaire list this year.

Brothers Tan Yu Yeh and Tan Yu Wei were valued at US$1.8 billion (RM7.43 billion) and US1.1 billion (RM4.54 billion) respectively...