Exhibit 10.15 FLOATING CONVERTIBLE DEBENTURE NEITHER THIS SECURITY NOR THE SECURITIES ISSUABLE UPON CONVERSION HEREOF HAVE BEEN REGISTERED WITH THE UNITED STATES SECURITIES AND EXCHANGE COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE OR CANADIAN...Floating Convertible Debenture • April 14th, 2004 • Tengtu International Corp • Services-business services, nec
