Singapore's richest man — who is chairman and co-founder of a company that makes ventilators — has added $3.5 billion to his net worth this year

Singapore's richest man — who is chairman and co-founder of a company that makes ventilators — has added $3.5 billion to his net worth this year https://t.co/53uiKJcgYx

— Bloomberg (@business) April 3, 2020