EXHIBIT 3 --------- PLEDGE AGREEMENT RESPECTING NOTES Teck Cominco Limited (hereinafter called "Teck") hereby pledges, assigns, hypothecates and deposits with The Bank of New York (the "Trustee") those documents described in Schedule "A" hereto (as...Pledge Agreement • September 29th, 2005 • Teck Cominco LTD • Mining & quarrying of nonmetallic minerals (no fuels) • British Columbia
