This file photo dated Dec 14, 2017 shows Amazon CEO Jeff Bezos arriving for the premiere of The Post, in Washington, DC. (MANDEL NGAN / AFP)

SAN FRANCISCO - Amazon founder and CEO Jeff Bezos has become the richest man in the world with a net wealth of US$141.9 billion, the Forbes World's Billionaires list showed Monday.

Bezos' wealth has grown more than US$5 billion since June 1 to beat Bill Gates, the principal founder of Microsoft Corporation, who is the second richest man in the world with US$92.9 billion.

Warren Buffet, one of the most successful investors in the world, trailed in the third place with a total of wealth of US$82.2 billion.

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Bezos officially became the richest person in the world earlier this year, and his business behemoth of online retailing, Amazon, grew into the second most valuable company in the world after Apple.

Fortune's last list release showed that Amazon ranked eighth on the 2018 list of America's largest companies, with revenues of US$177.87 billion.

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