Fraud allegations
On June 2, 2011, shares in Sino-Forest plummeted following the release of a negative research report
by Carson Block of Muddy Waters Research, which made allegations that Sino-Forest had been fraudulently inflating its assets and earnings, and that the company's shares were essentially worthless. Muddy Waters claimed that Sino-Forest was a "multibillion-dollar Ponzi scheme" that was "accompanied by substantial theft". Sino-Forest rejected the allegations of fraud and launched an independent investigation by PricewaterhouseCoopers. Shares in Sino-Forest fell by 82% following publication of the Muddy Waters report, with prominent investor John Paulson selling his entire stake in the company at a $720 million loss.
On June 30, debt rating agency Standard & Poors downgraded Sino-Forest's long-term corporate credit rating from "BB" to "B+". A second downgrade to "B" followed on August 23.
On August 15, 2011, Sino-Forest announced that the results of the PwC probe into the allegations would be delayed to the end of the year due to difficulties in gathering data from the Chinese companies involved.
Suspension of trading of shares
On August 26, 2011, the Ontario Securities Commission suspended trading of the shares of Sino-Forest, stating that the company had engaged in practices they "knew or should have known" perpetuated a fraud. The OSC also initially ordered that five directors of Sino-Forest resign, but rescinded this demand a few hours later as the Ontario Securities Act does not allow the commission to summarily force the resignation of a company director without a hearing.
Bankruptcy protection
On March 30, 2012, Sino-Forest filed for bankruptcy protection in Canada under the framework laid out in the Companies' Creditors Arrangement Act.
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On April 4, 2012, Sino-Forest's auditors, Ernst and Young, resigned.
Defamation lawsuit
On March 29, 2012, one day before filing for bankruptcy protection, Sino-Forest sued Muddy Waters in the Ontario Superior Court of Justice for defamation. Sino-Forest sought damages of $4 billion. In response to the lawsuit, Muddy Waters stated that Sino's bankruptcy protection filing vindicated its accusations since the company would not require bankruptcy protection if it was really generating close to $2 billion in cash flow.
Settlement of investors' lawsuits
In 2015, the firm's auditors Ernst and Young, a group of financial institutions (Credit Suisse Securities (Canada) Inc., TD Securities Inc., Dundee Securities Corp., Merrill Lynch Canada Inc., RBC Dominion Securities Inc., Scotia Capital Inc., CIBC World Markets Inc., Canaccord Financial Ltd. and Maison Placements Canada Inc.), and former Sino-Forest chief executive David Horsley paid $117 million, $32.5 million and $5.6 million respectively to settle investor's lawsuits.
Ontario Securities Commission decision
On July 13, 2017, the OSC released its decision finding that "Sino-Forest, Chan, Ip, Hung and Ho engaged in deceitful or dishonest conduct related to Sino-Forest's standing timber assets and revenue they knew constituted fraud." The OSC also found that the individual respondents violated Ontario securities law by misleading commission staff during the investigation.