inc Overview

Forward Looking Information This presentation contains certain forward-looking statements and information within the meaning of the United States Private Securities Litigation Reform Act of 1995 and forward-looking information as defined in the Securities Act (Ontario). Forward-looking statements can be identified by the use of words such as “plans”, “expects” or “does not expect”, “is expected”, “budget”, “scheduled”, “estimates”, “forecasts”, “intends”, “anticipates” or “does not anticipate”, or “believes”, or variation of such words and phrases or state that certain actions, events or results “may”, “could”, “should”, “would”, “might” or “will” be taken, occur or be achieved. Forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of Teck Cominco or Inco to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. These forward-looking statements include estimates, forecasts, and statements as to management’s expectations with respect to, among other things, business and financial prospects, financial multiples and accretion estimates, the size and quality of the company’s development projects, mineral reserves and mineral resources, including after its proposed acquisition of Inco, future trends, plans, strategies, objectives and expectations, including with respect to future operations, products, services and projects for the company, including following its proposed acquisition of Inco, the proposed integration of management of the company and Inco, progress in development of mineral properties, future production, capital and mine production costs, demand and market outlook for commodities, future commodity prices and treatment and refining charges, the application of the company’s CESL technology in Inco’s operations, timing for listing Teck Cominco’s Class B subordinate voting shares on the NYSE, expected synergies and cost savings, from the proposed acquisition of Inco, including the timing thereof and the financial results, cash flows and operations of the company and Inco, including following the company’s proposed acquisition of Inco. These forward-looking statements involve numerous assumptions, risks and uncertainties and actual results may vary materially. These statements are based on a number of assumptions, including, but not limited to, assumptions regarding general business and economic conditions, interest rates, the supply and demand for, deliveries of, and the level and volatility of prices of nickel, cobalt, platinum group metals, zinc, copper, coal and gold and other primary metals and minerals as well as oil, natural gas and petroleum products produced by Teck Cominco and Inco, the timing of the receipt of regulatory and governmental approvals for Teck Cominco’s and Inco’s development projects and other operations, the availability of financing for Teck Cominco’s and Inco’s development projects on reasonable terms, Teck Cominco’s and Inco’s respective costs of production and their respective production and productivity levels, as well as those of their competitors, power prices, market competition, the accuracy of Teck Cominco’s and Inco’s reserve estimates (including, with respect to size, grade and recoverability) and the geological, operational and price assumptions on which these are based, the realization of synergies, transaction costs, and the future financial performance of the company and Inco. The foregoing list of assumptions is not exhaustive. Events or circumstances could cause actual results to differ materially.

Forward Looking Information Factors that may cause actual results to vary include, but are not limited to: the Teck Cominco Class B subordinate voting shares issued in connection with the proposed acquisition may have a market value lower than expected, the businesses of Teck Cominco and Inco may not be integrated successfully or such integration may be more difficult, time-consuming or costly than expected, the expected combination benefits and synergies and cost savings from the Teck Cominco/Inco transaction may not be fully realized or not realized within the expected time frame, the possible delay in the completion of the steps required to be taken for the eventual combination of the two companies, including the possibility that approvals or clearances required to be obtained from regulatory and other agencies and bodies will not be obtained in a timely manner, business and economic conditions in the principal markets for the companies’ products, the supply, demand, and prices for metals to be produced, changes in commodity and power prices, changes in interest and currency exchange rates, inaccurate geological and metallurgical assumptions (including with respect to the size, grade and recoverability of mineral reserves and resources), unanticipated operational difficulties (including failure of plant, equipment or processes to operate in accordance with specifications or expectations, cost escalation, unavailability of materials and equipment, government action or delays in the receipt of government approvals, industrial disturbances or other job action, and unanticipated events related to health, safety and environmental matters), political risk, social unrest, changes in general economic conditions or conditions in the financial markets and other risk factors related to the mining and metals industry as detailed from time to time in Teck Cominco’s and Inco’s reports filed with the US Securities and Exchange Commission (“SEC”). Certain of these risks are described in more detail in the annual information form of the company and in public filings with the SEC. The company does not assume the obligation to revise or update these forward-looking statements after the date of this document or to revise them to reflect the occurrence of future unanticipated events, except as may be required under applicable securities laws.

Important Notice  This presentation may be deemed to be solicitation material in respect of Teck Cominco's proposed tender offer for the shares of Inco. On May 23, 2006, Teck Cominco filed the following documents with the Securities and Exchange Commission (SEC) in connection with its offer to purchase all of the outstanding common shares of Inco: (1) a Registration Statement on Form F-10 (containing an offer to purchase and a share take-over bid circular) and (2) a tender offer statement on Schedule T-O. Investors and shareholders are urged to read the Registration Statement, the Schedule T-O and any other relevant documents filed or that will be filed with the SEC when they become available because they will contain important information about the tender offer. These documents will be available without charge on the SEC’s web site at www.sec.gov and may be obtained without charge from the SEC at telephone number 800-SEC-0330. Free copies of these documents can also be obtained by directing a request to Teck Cominco, 600-200 Burrard St. Vancouver British Columbia Canada, V6C 3L9, attention Corporate Secretary, by telephone to (604)687-1117, or by email to: info@teckcominco.com. www.teckcominco.com www.teckcomincooffer.com

ZINC : Global Supply/Demand Balance Mine Production Demand SURPLUS/(DEFICIT) 9,793 10,390 10,358 10,657 (267) 11,290 11,540 11,534 11,835 (351) 9,579 9,878 9,871 9,847 31 ACTUAL FORECAST Source : ILZSG, Teck Cominco10,597 10,881 10,846 11,228 10,019 10,292 10,263 10,643 (347) (295) 2005 2006 2004 2003 2007 Yr-on-Yr Change 8.2% 5.4% 4.9% 5.5% 1.1% Refined Production (Primary & Secondary) Total Supply (Including DLA Disposals) (thousand tonnes)

10 Largest Additions to World Zinc Mine Supply 2006/07 0 50 100 150 200 250 Balmat Cerro Lindo Shaimerden Antamina Tennessee Mines Ust Stolovska Mount Isa Lennard Shelf Dairi * San Cristobal* * at full rate in 2008 Source : Teck Cominco

Chinese Zinc Mine Production Peaking ? 2005 2006 Source : Antaike up 3% up 22% up 28% up 22% up 22% up 13% 0 50 100 150 200 250 Jan Feb Mar Apr May Jun (000s Tonnes Content) MONTHLY MINE PRODUCTION

Quarterly Galvanized Steel Sheet Production Globally Source : CRU, CISA plotted to Q2 2006 15,00017,00019,00021,00023,00025,00027,00029,0001997 1998 1999 2000 2001 2002 2003 2004 2005 2006 (Tonnes 000’s)

Quarterly Galvanized Steel Sheet Shipments in the US 3,0003,2003,4003,6003,8004,0004,2004,400Q1 1999 Q1 2000 Q1 2001 Q1 2002 Q1 2003 Q1 2004 Q1 2005 Q1 2006 Source : AISI/Steelfacts plotted to Q2 2006 (000s Tonnes Content)

Galvanized Production up in China Source : CRU, CISA plotted to Q2 2006 20040060080010001,2001,4002003 2004 2005 2006 (Tonnes 000’s)