Olivia Lum - founder of water treatment company Hyflux in Singapore .

张震亮度 -创办人的水处理公司凯发在新加坡举行。

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Singaporean Olivia Lum, age 45, debuts at number 39 as the list's youngest, and only female, member.

FORBES: Southeast Asia's 40 Richest

Olivia Lum, ranked 35 on the list, was born in poverty in Malaysia, and narrowly escaped a future as a child labourer.

FORBES: Asian Women At The Top Of World Business

When Olivia Lum had just started her water treatment firm, Hyflux, in Singapore, she could not afford a professional welder to build her first projects.

FORBES: Water Queen