EXHIBIT 4.1 China Grentech Corporation Limited Matter : 710220 Issued to: Type of Share : Ordinary Certificate # : Date of Record : # of Shares : Transfer to cert. # : Amount Paid : 100% # of Shares : Par Value : US$0.00002 Transfer Date : CHINA GRENTECH CORPORATION LIMITED INCORPORATED IN THE CAYMAN ISLANDS This is to certify that of is the registered shareholder of: No. of Shares Type of Share Par Value US$0.00002 Date of Record Certificate Number % Paid 100 The above shares are subject to the Memorandum and Articles of Association of the Company and transferrable in accordance therewith. GIVEN UNDER THE COMMON SEAL OF THE COMPANY Director Director/Secretary - --------------------- --------------------