Teck Resources Limited Class A · TSX:TECK.A

Teck Resources Limited Class A — Teck Cominco — Technical Presentation (October 2001)

28 slides from Teck Resources Limited Class A's technical presentation, October 2001

1. Slide 1: An Update on General Galvanizing Alloy Developments

   An Update on General Galvanizing Alloy Developments AGA Meeting October 2001 J. Zervoudis

2. Slide 2: General Galvanizing R&D

   General Galvanizing R&D ƒ Improvements in the Ni-Zn Direct Alloying Process (DAP) ƒ Update on V-Sn-Bi alloy ƒ Introduction of BritePlus™ alloy

3. Slide 3: Direct Alloying Process

   Direct Alloying Process ƒ The Ni-Zn galvanizing alloy: – controls steels with up to about 0.2%Si (SE) – improves Zn fluidity and drainage. ƒ The DAP process: – Ni powder dissolves within minutes at 450ºC (850ºF) galvanizing temperature – Ni powder addition: 1.8 lbs/1,000 lbs Zn to maintain 0.055%Ni

4. Slide 4: Direct Alloying Process

   Direct Alloying Process ƒ DAP mixer ƒ DAP dispenser

5. Slide 5: DAP Mixer Developments

   DAP Mixer Developments ƒ Ni dispensed one to two feet below bath surface ƒ Minimizes surface disturbance and oxidation ƒ Reduces amount of Ni to ash ƒ Improves mixing of Ni powder in bath ƒ Ni powder addition to maintain bath same as pre-alloy

6. Slide 6: DAP Dispenser Developments

   DAP Dispenser Developments • Improved handling • Minimized exposure

7. Slide 7: Effects of Alloying Additions on Coating Thickness

   Reactive Steel Galvanizing V-Sn-Bi Alloy Effects of Alloying Additions on the Coating Thickness on Various Steels (10 Minute Immersion at 450°C) 450 SHG 400 1Sn+0.05V+0.1Bi Ni-Zn 350 Coating Thickness (µm) 300 250 200 150 100 50 0 0.07 0.14 0.15 0.21 0.32 0.41 0.46 0.51 0 Silicon Equivalent (%)

8. Slide 8: Reactive Steel Galvanizing V-Sn-Bi Alloy: Advantages

   Reactive Steel Galvanizing V-Sn-Bi Alloy ƒ Advantages: – Controlled reactivity on all steel – Eliminated grey coat – Shiny spangled coatings – Reduced coating thickness by 10-50%

9. Slide 9: Reactive Steel Galvanizing V-Sn-Bi Alloy: Disadvantages

   Reactive Steel Galvanizing V-Sn-Bi Alloy ƒ Disadvantages: – Trapped ash was sticky/black – More effort in racking

10. Slide 10: Reactive Steel Galvanizing V-Sn-Bi Alloy: Conclusions

    Reactive Steel Galvanizing V-Sn-Bi Alloy ƒ Conclusions: – Alloy would work in a dedicated plant with captive product lines – For a general galvanizing shop, a more compatible flux is required

11. Slide 11: Reactive Steel Galvanizing V-Sn-Bi Alloy

    Reactive Steel Galvanizing V-Sn-Bi Alloy ƒ Flux development work ƒ Pilot trial work ƒ Results very encouraging ƒ Ready for plant trial ƒ Progress was slowed because of BritePlus™

12. Slide 12: BritePlus

    BritePlus™ ƒ Not everyone needs an alloy that controls reactive steel ƒ Everyone could benefit from an alloy that improves coating quality

13. Slide 13: BritePlus Objectives

    BritePlus™ ƒ Objectives: – low cost – improved quality/appearance – easy bath maintenance – flexibility/versatility ƒ The alloy: – Zn-Sn-Bi-Al

14. Slide 14: BritePlus

    BritePlus™ ƒ Zn-Sn-Bi-Al alloy bars: 18 lbs ƒ Virtual replacement of brightener bars ƒ Maintenance: 25 lbs BritePlus™/ton of Zn ƒ Cost of alloy is comparable to the cost of DAP ƒ Cost premium: offset by reduction in Zn pick-up

15. Slide 15: BritePlus Plant Trials

    BritePlus™ ƒ Plant trials: – PW: 8 kettles – SHG: 2 kettles – > 12 months < 1 – all are continuing use

16. Slide 16: BritePlus

    BritePlus™ ƒ Improvement in coating appearance and reduction of grey coat ƒ Customer enthusiasm regarding new spangled coating appearance ƒ Reduction in Zn pick-up ƒ Reduction in finishing work

17. Slide 17: BritePlus

    BritePlus™ ƒ Reduction in white rust on freshly galvanized product in yard ƒ Ash production: – same or more than PW ƒ Dross production: – same or less than PW

18. Slide 18: BritePlus Laboratory Testing

    BritePlus™ Laboratory Testing ƒ Pilot plant galvanizing with different steels ƒ Fluidity/drainage tests: 1/2 and 1/4 in. wire mesh ƒ Humidity/stacking: chromated/non- chromated ƒ Atmospheric corrosion test: three sites ƒ Coating adhesion test: impact/scribe ƒ Kettle steel corrosion test: 50 days, 45

19. Slide 19: Coating Appearance

    Coating Appearance SHG SHG + BritePlus™

20. Slide 20: BritePlus

    | teckcominco ) BritePlus™

21. Slide 21: Cost-effectiveness

    BritePlus™ ƒ Cost-effectiveness ƒ Optimization of Sn-Bi-Al additions ƒ High quality coatings ƒ Improved drainage

22. Slide 22: BritePlus

    | BritePlus™

23. Slide 23: Easy maintenance

    BritePlus™ ƒ Easy maintenance: – one bar maintains operating levels – quick bath conversion/no disruption – immediate benefits – meets minimum 98% Zn specification

24. Slide 24: BritePlus

    | teckcominco ) BritePlus™

25. Slide 25: Versatility

    BritePlus™ ƒ Versatility: – use with PW – use with SHG – use with Ni

26. Slide 26: BritePlus

    BritePlus™

27. Slide 27: Teck Cominco technical support

    BritePlus™ ƒ Teck Cominco technical support: – bath management – customer problem investigation

28. Slide 28: BritePlus - Examples

    BritePlus™ - Examples

Teck Cominco — Technical Presentation (October 2001) on 6ix