BRIEF-Zhuhai BoYuan Investment to implement delisting risk warning from March 31

March 30 (Reuters) - Zhuhai BoYuan Investment Co Ltd * Says to implement delisting risk warning from March 31 after the company was suspected of violating regulations in information disclosure and financial fraud Source text in Chinese: http://bit.ly/19ylz3b Further company coverage: (Reporting by Hong Kong newsroom)