424B3 1 memo424b3clinuvel.txt November 26 2010 SECURITIES EXCHANGE COMMISSION 450 Fifth Street NW Washington DC 20549 Attn. Document Control RE American Depositar y Receipts representi ng ten deposited shares of Clinuvel Pharmace uticals Limited Form F6 Registratio n No. 33311672 1 Ladies and Gentlemen Pursuant to Rule 424b3 under the Securities Act of 1933 as amended on behalf of The Bank of New York Mellon as Depositary for securities against which American Depositary Receipts are to be issued we attach a copy of the new prospectus Prospectus reflecting the change in number of ordinary shares represented by one American Depositary Share the Ratio. As required by Rule 424e the upper right hand corner of the Prospectus cover page has a reference to Rule 424b3 and to the file number of the registration statement to which the Prospectus relates. Pursuant to Section III B of the General Instructions to the Form F6 Registration Statement the Prospectus consists of the ADR certificate with the revised ratio for Clinuvel Pharmaceuticals Limited. The Prospectus has been revised to reflect the new ratio and has been overstamped with Effective November 26 2010 the ratio has changed to One 1 American Depositary Share represents One 1 deposited Shares. Please contact me with any questions or comments at 212 8152729 Mark Gendler Senior Associate The Bank of New York Mellon ADR Division Encl. CC Paul Dudek Esq. Office of International Corporate Finance 101 Barclay Street, 22nd Floor West, New York, NY 10286