AMENDMENT NO. 1 TO U.S. GUARANTEE AND SECURITY AGREEMENT AMENDMENT dated as of December 12, 2002 among NORTEL NETWORKS LIMITED ("NNL"), NORTEL NETWORKS INC. ("NNI"), the SUBSIDIARIES listed on the signature pages hereof, and JPMORGAN CHASE BANK, as...u.s. Guarantee and Security Agreement • December 13th, 2002 • Nortel Networks LTD • Telephone & telegraph apparatus • New York
