EXHIBIT 1.1 U.S. and International Underwriting Agreement July 27, 2000 Roth Capital Partners, Inc. Gruntal & Co., L.L.C. As Representatives of the Several U.S. Underwriters c/o Roth Capital Partners, Inc. 24 Corporate Plaza Newport Beach, CA 92660...Underwriting Agreement • September 11th, 2000 • Keryx Biopharmaceuticals Inc • Services-commercial physical & biological research • New York
