Sri Prakash Lohia

Sri Prakash Lohia made much of his fortune producing PET and other petrochemicals.

In the 1970s he and his father moved from India to Indonesia, where they cofounded Indorama Corporation as a maker of spun yarn.

It is now a petrochemicals powerhouse, making industrial products including fertilizers, polyolefins, textile raw materials and medical gloves.

Lohia remains chairman but lives in London. His son Amit is vice chairman.

His younger brother Aloke Lohia, also a billionaire, lives in Thailand, where he runs PET polymer maker Indorama Ventures Public Co.