COMPLEJO PORTUARIO MEJILLONES S.A.
December 31st, 2006

Legal Status
Company Name: Complejo Portuario Mejillones SA private limited company.
RUT: 96.819.040-7
Society registered under repertory number: 18 March 1997
Notary: Hugo Leonardo Pérez Pousa.
Inscription fs.7188 Nº 5679 in Santiago's commercial registry, 24 March 1997.

Capital subscribed and paid in
As of December 31st, 2006, the capital subscribed and paid in by Codelco: US$32,596,000.

Purpose
The purpose of this company is to project, build and run a port in Mejillones Bay, Second Region of Antofagasta. The CPM developed the project and won the building and operation of Terminal 1 through a 30-year concession contract granted to the Compañía Portuaria Mejillones SA, a private consortium formed by Ultramar, constructora Belfi, and Inversiones Portuarias Norte Grande SA.

Board of Directors
President of the Board of Directors:
Roberto Souper Rodríguez (*)
Vice-president: Jaime Gibson Aldunate
Director: Sergio Jarpa Gibert (*)
Director: Alfonso Dulanto R.
Director: Iván Simunovic Petricio

General Manager
Jorge Taboada Rodríguez

Codelco's share of capital and changes during the fiscal year
As of 31 December 2006: 99.99%
No change during the 2006 fiscal year

Commercial relations with Codelco
Codelco provides various services to CPM, which is charged to its cost centre. These include:
• Transportation (air fares, commuting, etc.)
• Computer equipment, software, Internet access and email.

For its part, CPM rents Codelco offices in the Terminal 1 Administration Building and provides consulting services for specific projects.

Contracts with Codelco
• Codelco guarantee contract: this is a guarantee signed by Codelco, the Complejo Portuario Mejillones SA (the port complex) and the Compañía Portuaria Mejillones SA (the port company), in which Codelco guarantees the Compañía Portuaria Mejillones SA payment of any and all sums that CPM owes the port company as part of the contract to build port facilities and providing port services in Terminal 1, Mejillones (a BOT contract), signed by both, in the event that CPM fails to do so.
• Contract for providing port services for shipping copper, dated 15 November 1999 (CTA contract): This contract governs the provision of port services (copper shipping and others) that the Compañía Portuaria Mejillones SA provides to Codelco. CPM has also signed this contract, in its supervisory role.
• Contract in which CPM rents offices to Codelco, in the Terminal 1 Administration building, October 2003.
• Consulting contract to develop the Baquedano - Mejillones route project.
• Consulting contract with the Projects Vice-Presidency.

Investment as a percentage of total head office
2006 Investment in subsidiary US$22,699,000.
2005 Investment in subsidiary US$24,113,000.
Total investment as a percentage of head office assets: 0.177%, 2006.