March 28, 2017 - The court ordered the authorization of the distribution of the net settlement fund.
September 25, 2015 - The court approved the settlement and entered the orders approving the plan of allocation, the motion for attorneys’ fees and expenses, and dismissing the action with prejudice).

June 8, 2015 - The court preliminarily approved the settlement.

April 22, 2015 - Parties filed a stipulation of settlement.

August 12, 2014 - The court granted the other motion to dismiss.

July 1, 2014 - The court denied one motion to dismiss without prejudice.

November 25, 2013 - The defendants filed motions to dismiss.

October 28, 2013 - The lead plaintiff filed a third amended complaint.

August 22, 2013 - The court granted the motion to dismiss of 2 additional defendants.

August 6, 2013 - The lead plaintiff filed a second amended complaint.

February 17, 2013 - The court granted the voluntary dismissal of a particular defendant.

December 27, 2012 - The defendants filed a motion to dismiss.

October 15, 2012 - The lead plaintiff filed an amended consolidated complaint on behalf of investors who purchased ShengdaTech Inc (NASDAQ: SDTH) common shares between May 6, 2008 and March 15, 2011. The lead plaintiff alleges that the defendants violated the Securities Exchange Act of 1934 by issuing false and misleading statements between May 6, 2008 and March 15, 2011.

December 6, 2011 - Lead plaintiff and lead counsel were appointed and all cases were consolidated.

May 17, 2011 - Lead plaintiff motions were filed.

March 18, 2011 - An investor in shares of ShengdaTech Inc (NASDAQ: SDTH now trading on the OTC sheets as SDTHQ) filed a lawsuit in the U.S. District Court for the Southern District of New York against ShengdaTech Inc over alleged violations of Federal Securities Laws in connection with certain allegedly false and misleading statements made between March 15, 2010 and March 15, 2011.

According to the complaint the plaintiff alleges on behalf of purchasers of ShengdaTech Inc (NASDAQ: SDTH) common stock during the period between March 15, 2010 and March 15, 2011 that ShengdaTech Inc and certain of its officers and directors violated the Securities Exchange Act of 1934 by issuing between March 15, 2010 and March 15, 2011 materially false and misleading statements regarding its business and prospects.

ShengdaTech Inc’s 12months Total Revenue increased from $72.60million in 2006 to $102.12million in 2009. Its Net Income went from $17.53million in 2006 to $23.10million in 2009. For the first three quarters in 2010 ShengdaTech Inc reported a combined nine months Total Revenue of $97.89million with a combined nine months Net Income of $20.65million.

Shares of ShengdaTech Inc traded during 2007 as high as $14.34 per share and fell during 2009 to as low as $2.97 per share. Since then SDTH shares were able to gain value und traded as recently as October, November, and December 2010 over $6 per share. SDTH shares fell sharp from $6.12 on Dec 8 to $4.67 on Dec 17 and continued to decrease to as low as $4.02 per share on Feb 9. SDTH shares then increased to $4.38 on Feb 16. However, on March 15 the NASDAQ Stock Market (NASDAQ: NDAQ) announced that the trading halt status in ShengdaTech Inc (NASDAQ: SDTH) was changed to additional information requested from the company. Trading in the company's stock had been halted on March 15, 2011 at 7:55:20 a.m. Eastern Time for news pending at a last sale price of $3.551. Trading will remain halted until ShengdaTech Inc has fully satisfied NASDAQ's request for additional information. The same day ShengdaTech Inc (NASDAQ: SDTH), announced that it had appointed a special committee of the Board of Directors to investigate potentially serious discrepancies and unexplained issues relating to the Company and its subsidiaries' financial records identified by the Company's auditors in the course of their audit of the consolidated financial statements for the fiscal year ended December 31, 2010.

ShengdaTech Inc also said that due to the pendency of the internal investigation, ShengdaTech Inc will not be able to file its Annual Report on Form 10-K in a timely manner.