ISAPRE CHUQUICAMATA LTDA.
December 31st, 2006

Legal Status
Company name: Isapre Chuquicamata Ltda.
RUT Nº 79.566.720-2
Limited liability company.

Capital subscribed and paid in
As of December 31st 2006, capital subscribed and paid-in by Codelco was ThUS$1,414.

Purpose
Provision of health services and benefits, either directly or through financing them, as per the regulations contained in DFL No. 3 published by the Ministry of Health. To meet this objective the company can act and enter into every kind of contract, including forming other companies and joining them.

Board of Directors of the Consultant Council
Sergio Jarpa Gibert, President of the Board of Directors (*)
Alejandro Salinero Berardi (*)
Manuel Zeballos Mundaca (*)
Nemesio Orellana Rojas (*)
Miguel Cortés Gallardo (*)
Jorge Hernández Donoso (*)
Héctor Lagos Fuentes (*)
Hilario Ramírez González
Hernán Polanco Salfate
Hernán Guerrero Maluenda
Paulina Troncoso Espinoza
Juan Blanco Mella
Gualner Ávalos Ibarbe
Guillermo Cárceles

General Manager
María Rosa Martínez

Codelco's share of capital and changes during the fiscal year
Codelco's share: 98.3%
Fusat's share 1.7%

Commercial Relations with Codelco
Provision of health care through medical services to all Codelco workers affiliated with this private health insurance firm (Isapre), their family members, and all Codelco's nonworking
affiliates. The Isapre pays the amount of these services monthly to Codelco.

Contracts with Codelco
Contract for health care services (01 June 1982)
Medical equipment and instrument rental contract (01 June 1998)
Service provision contract (01 June 1998)

Investment as a percentage of total head office
2006 Investment in subsidiary US$2,544,000.
2005 Investment in subsidiary US$2,551,000.
Total Investment as a percentage of head office assets: 0.019%, 2006.