The House of Klynveld resigned as the auditor Shanghai-based ShengdaTech, Inc. effective April 29th after less than three years. According to the 8-K filed yesterday, KPMG was none too impressed with management blowing off their concerns:

KPMG previously informed the Company’s Audit Committee of certain concerns arising during its incomplete audits of the Company’s consolidated financial statements as of and for the year ended December 31, 2010, and the effectiveness of internal control over financial reporting as of December 31, 2010. These concerns included serious discrepancies and unexplained issues relating to, among others: (i) the Company’s bank balances; (ii) transactions with major suppliers; (iii) VAT invoices and payments; (iv) sales and payments for sales by third parties; (v) sales to the Company’s second largest customer; (vi) discrepancies between KPMG’s direct calls to customers and confirmations returned by mail; and (vii) concerns raised by directly confirming customer sales and accounts receivables.

In a letter dated April 19, 2011, KPMG informed the board of directors of the Company that in KPMG’s view the Company’s senior management has not taken, and the board of directors has not caused senior management to take, timely and appropriate remedial actions with respect to these discrepancies and/or issues, and KPMG stated that the continued lack of resolution of the issues would materially impact the financial statements for the year ended December 31, 2010 and possibly prior periods.

And as you might expect, this resulted in KPMG taking its audit reports and going home:

On April 29, 2011, we were also informed by KPMG, our former independent accounting firm, that disclosures should be made and action should be taken to prevent future reliance on their previously issued audit reports related to the consolidated balance sheets of ShengdaTech, Inc. and its subsidiaries as of December 31, 2008 and 2009, and the related consolidated statements of income, shareholders’ equity and comprehensive income, and cash flows for the years then ended and the effectiveness of internal control over financial reporting as of December 31, 2008 and 2009.

8-K [SEC via ShengdaTech]