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Letterhead of: LUX METAL LTDA.. DATE: Santiago, October 28, 2003 Mssrs. COMERCIALIZADORA IZHE LTDA. Dear Sirs, According to your request, I am submitting our experience in jobs carried out using Omega Lubricants or Magna Welding Solutions Equipment or piece repaired (or lubricated): Use of Omega 57 Grease in back- driving gears of # 30 - 28 machines. After two maintenance services, it was not necessary to lubricate again, since the grease was kept in good condition in the different points checked. Product (Magna or Omega, with the letter of the product): Application of Omega 73 Grease in travelers and tower of # 23 machine. It was observed that the lubricant covered all the surfaces and did not shift. Outcome: In the first example, we could extend the lubrication period. Sincerely, (signed) Ricardo Navarro Lux Metal Ltda. Santiago - Chile

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Letterhead of: COPRIN LTDA. COMERCIAL DE PRODUCTOS INDUSTRIALES Y MINEROS LTDA. DATE: Santiago, October 31, 2003 Mssrs. COMERCIALIZADORA IZHE LTDA. Dear Sirs, According to your request, I am submitting our experience in jobs carried out using Omega Lubricants or Magna Welding Solutions. Equipment or piece repaired (or lubricated): Wiring Machinery, 19 threads; double torsion. Continuous Annealing Machinery. Wire-Drawing Machine. Stainless steel pipes, tool machine, etc. Product (Magna or Omega, with the letter of the product): M-470 , M-F 33 , M-401 , M-440, O-690, O-57 Outcome: Good results as regards time, quality, cost, cleanliness, easy application. Congratulations! Sincerely, (signed) César Jara Villablanca COPROIN LTDA. Santiago - Chile

Av. J. J. Prieto 5601 – Tel: 5222557 – 5223265 – 5224184 – 5226954 –Fax: (562) 5219907

E-mail: coproin@netline.cl. Postal Code: 721364 Pedro Aguirre Cerda – Santiago - Chile