Qu Long, a former business partner of Guo Wengui - one of China's most-wanted fugitives who is still at large in the United States - accused Guo on Wednesday during a small news conference of committing fraud and bribery that he said amounted to more than 1 billion yuan ($150 million).

Qu said he is preparing materials and working closely with his legal team to have Guo criminally prosecuted in a Chinese court. He said he will offer solid evidence to judicial authorities in the US.

"I will take the chance of exposing his crimes to the media and the public in case other innocent people might be cheated by him, and I hope US law enforcement officers will repatriate him back to China to face trial as soon as possible," Qu said during the news conference at a Beijing hotel, which was attended by domestic and foreign media.