Petaquilla Copper Delivers Arbitration Notice to Teck Cominco

VANCOUVER, British Columbia, April 30/PRNewswire/ --

Petaquilla Copper Ltd. ("Petaquilla") announces that it has delivered a
Notice of Request to Arbitrate to Teck Cominco Limited ("Teck Cominco") with
respect to a dispute about the Petaquilla Copper Project, Panama.

On March 28, 2008, Teck Cominco purported to deliver to Petaquilla a
"Final Commitment" with respect to the Project. A "Final Commitment" is
defined as a written notice given by Teck to each of Petaquilla and Inmet
Mining Corporation unconditionally confirming that it will participate in all
required Work Plans and Budgets for Development Operations for the purpose of
achieving Commercial Production, in accordance with the terms of the Initial
Feasibility Study relating thereto and in accordance with the terms of the
Minera Petaquilla S. A. Shareholders' Agreement, and that it will arrange or
provide Petaquilla's and Teck's share of the financing of the required
Development Costs and specifying the terms of this financing.

The sole document supporting Teck Cominco's Final Commitment is a draft
Interim FEED study delivered on January 31, 2008.

Petaquilla's position is that:

-- Teck Cominco has failed to satisfy the preconditions for the making of
the Final Commitment;
-- Teck Cominco's interest in the Petaquilla Copper Property has now
terminated;
-- the Petaquilla Copper Property is now owned by Petaquilla Copper as to
a 52% interest and by Inmet Mining Corporation as to a 48% interest.

Without prejudice to Petaquilla's position that Teck Cominco failed to
satisfy the preconditions for the making of the Final Commitment, Petaquilla
has advised Teck Cominco and Inmet that it has elected to have its interest
in the Property fully carried.

About Petaquilla Copper -Petaquilla Copper Ltd. is a mineral exploration
company headquartered in Vancouver, Canada. Its shares are listed on the
Toronto Stock Exchange under the symbol PTC. The Company holds 52% of Minera
Petaquilla, S.A., a joint venture company developing its world-class copper
deposit in the Republic of Panama. Petaquilla Copper also owns 49% of the
issued shares of Petaquilla Infrastructure Ltd., a company incorporated to
manage and expedite the development of the power, port and related
infrastructure in support of the Molejon Gold Mine of Petaquilla Minerals
Ltd.

On behalf of the Board of Directors of
PETAQUILLA COPPER LTD.
Richard Fifer Chief
Executive Officer and Director
FOR FURTHER INFORMATION PLEASE CONTACT:
Renmark Financial Communications
Julien Ouimet: jouimet@renmarkfinancial.com
Victoria Stepanova: vstepanova@renmarkfinancial.com
Media - Vanessa Napoli : vnapoli@renmarkfinancial.com
Phone: +1-514-939-3989 / Fax : +1-514-939-3717
www.renmarkfinancial.com

NO STOCK EXCHANGE HAS APPROVED OR DISAPPROVED THE INFORMATION
CONTAINED HEREIN.

Web site: www.renmarkfinancial.com

Source: Petaquilla Copper Ltd.

Julien Ouimet, jouimet@renmarkfinancial.com, or Victoria Stepanova, vstepanova@renmarkfinancial.com, or Media, Vanessa Napoli, vnapoli@renmarkfinancial.com, all of Renmark Financial Communications, +1-514-939-3989, or Fax, +1-514-939-3717

2008-04-29 21:06:46 0348490 PRNEWSWIRE