[JOINT FILING AGREEMENT Joint Filing Agreement CAFOONG LIMITED CHENG CHUNG HING, RICKY CHENG TAI PO] [SCHEDULE 13D AMENDMENT NO. 4 SECURITIES & EXCHANGE COMMISSION SCHEDULE 13D (Amendment No. 4)* China Rural-Metro Holdings Ltd (Name of Issuer) Ordinary shares, par value US$0.001 per share (Title of Class of Securities) G3163G 10 4 (CUSIP Number) Cafoong Limited Cheng Chung Hing, Ricky Cheng Tai Po c/o Man Sang International (B.V.I.) Limited Suite 2208, 22/F Sun Life Tower, The]