Singapore convicts ‘masterminds’ behind US$6 billion penny-stock crash
- Quah Su-Ling and Malaysian John Soh Chee Wen artificially inflated the value of three companies’ shares preceding the penny-stock crash in 2013, the court found
- The US$5.78 billion scandal battered investor confidence and led to a series of reforms to the city state’s stock trading rules

Quah Su-Ling and Malaysian John Soh Chee Wen were the masterminds behind an elaborate scheme to artificially inflate the value of shares of Blumont Group Ltd (Blumont), Asiasons Capital Ltd (Asiasons) and LionGold Corp Ltd (LionGold), the statement said.

The pair were found guilty on more than 100 offences each, including market manipulation and cheating, it said.
The scandal, which saw those stocks surge multiple times in the months before they slumped, battered investor confidence and led to a series of reforms to the city state’s stock trading rules.
During investigations, Singapore authorities raided more than 50 locations and interviewed over 70 individuals, examining evidence comprising more than 2 million emails, 500,000 trade orders, and thousands of telephone records and financial statements, the joint statement said.