Eleven Asians, including two Japanese, were ranked Tuesday among the world's next generation of super rich by Fortune magazine.

Roman Abramovich, a Russian billionaire oil tycoon and owner of English soccer club Chelsea, was top ranked with $8.3 billion in the U.S.-based fortnightly's international list of the 40 richest business executives under the age of 40 outside the United States.

Japan's Hiroshi Mukitani came in 20th, with $576 million, followed by Yasumitsu Shigeta at 21, with $531 million.

Mukitani, founder of popular Japanese Internet shopping mall Rakuten, saw his ranking plummet from No. 6 last year. Shigeta, chairman of Hikari Tsushin Inc., made his debut in the magazine's ranking.

Top of the Asians is Kumar Birla, chairman of India's Aditya Birla Group. Worth $1.3 billion, he ranked 10th.

Hong Kong's Richard Li, chairman of Pacific Century Group, took the No. 17 position with $741 million, and South Korea's Kim Taek Jin, founder of computer games maker NCSoft, gained the No. 35 spot.

Six multimillionaires from mainland China also made the latest list.

They are William Ding, chief architect of Netease, one of China's largest Web portals, at No. 14; Liu Hanyuan, chairman of Tongwei Enterprise Group, China's largest aquatic feed producer, at No. 23; Wang Chuanfu, chairman of BYD, a top Chinese maker of batteries for computers, at No. 30; Guo Guangchang, chairman of Fosun High-Tech Group, at No. 32.