Chang Yun Chung

Chang Yun Chung (; 27 August 1918 – 4 September 2020), also known as Teo Woon Tiong, was a Singaporean billionaire and shipping magnate who founded Pacific International Lines (PIL). He was the world's oldest billionaire after the death of David Rockefeller in 2017.

Early life Chang was born on Kinmen Island on 27 August 1918. He had two brothers and three sisters.

Education Chang attended primary school in Kinmen and high school in Xiamen,

World War II When the Japanese invaded China in 1937, Chang fled to Singapore along with his mother and siblings to join his father who had moved there in 1935. In 1940, Chang moved to Malacca to do business with his uncle, who transported goods from Sumatra to Malacca. During the Japanese occupation of Malaya, Chang hid in rubber plantations outside of Malacca. When he returned to Singapore, which was also occupied by Japan, in search of his father, he found out that his father had been killed by the Japanese after being caught by the Kempeitai. He then returned to Malacca with his mother and continued to do business with his uncle. Originally formed as a coastal operator, PIL operated a route from Jakarta to Bangkok with two used ships that Chang had bought.

Wealth According to Forbes, Chang became a billionaire in 2014, with his net worth reaching as high as $2.7 billion in 2015. In March 2017, at age 98, Chang became the world's oldest living billionaire after the death of David Rockefeller.