Original sentence: , which later faced multiple shareholder lawsuits alleging the company had manipulated its revenues in order to boost the company's stock price.However, about a year later, CELM delayed its regulatory filings, trading in the stock was halted and the company's auditor resigned.In 1998 the Los Angeles Times reported that Roth had been criticized for its underwriting practices, citing the company's role in the initial public offering of Aviation Distributors Inc.In 2010 Barron's cited questions that had been raised by investors about Orient Paper, China Natural Gas and China Green Agriculture, firms underwritten by Roth, and which were later investigated for fraud by the SEC.In October 2011, CELM was delisted and several lawsuits were filed.Roth issued five 'buy' ratings on the stock.The Washington Post reported in September 2013 that Roth had been involved in the initial public offering of China Electric Motor Company (NASDAQ: CELM) following its reverse takeover in 2010.The company initially went public at $5 per share and later traded as high at $12.88 per share before falling to just 97 cents per share following the announcement of the lawsuits.The company was featured in the 2017 financial documentary The China Hustle for its underwriting relationships with Chinese companies that led to losses for American stockholders