The Securities and Exchange Commission (SEC) has commenced civil enforcement proceedings against various individuals and entities involved in U.S. stock transactions involving China Yingxia International, Inc. (China Yingxia or Company), which went public via a 2006 reverse merger. In one action, hedge fund manager Peter Siris (along with two affiliates) is accused of insider trading, acting as an unregistered broker and selling unregistered securities. He is also accused of insider trading in the shares of a number of other small capitalization companies. The SEC reports that he has settled those charges. In a separate action, an investment relations firm employed by China Yingxia is accused of acting as an unregistered broker, and the company’s chief financial officer (CFO) is accused of fraud and a number of reporting violations. The SEC has also entered into consent orders with three other individuals to resolve enforcement proceedings against them relating to their roles in the Company’s stock sales. This article identifies the various players and their roles in China Yingxia’s capital markets activities; summarizes the charges against Siris, the CFO and the investment relations firm; and summarizes the settlements with the individuals. See also “Questions Hedge Fund Managers Need to Consider Prior to Making Investments in Chinese Companies,” Hedge Fund Law Report, Vol. 4, No. 21 (Jun. 23, 2011).