CONSTELLATION COPPER CORPORATION
Lisbon Valley Operations to be Curtailed to Leach Only

Denver, Colorado - November 30, 2007 - Constellation Copper Corporation (the "Company") (CCU :TSX) is providing an update on the status of its Lisbon Valley Mine operations.

Operational Update
As previously reported on November 23, 2007, the Lisbon Valley Mine (LVM) continues to produce below planned capacity.  The primary reason for the lower copper production has been the slower than planned leach recovery rate experienced since the operation started leaching at the end of 2005.  Several significant initiatives to increase production have been undertaken, these include:  selective mining of the ore to minimize dilution and the inclusion of acid consuming materials;   modification of the  ore preparation prior to leaching;  increased the mining, crushing and stacking rates;  increased the placement of ore by utilizing trucks to deliver primary crushed ore directly to the leach pad;  increased solution flows through the plant; and the most recent initiative,  construction and commissioning of an Intermediate Leach Solution (ILS) system.  Although each of t hese efforts has been, or may become successful on its own, at this time the leach recovery rate limits copper production at the mine.   Implementation of these various initiatives has required significant cash disbursements which have not been offset by higher revenues from increased production.  Therefore the Company has determined that the most economic alternative currently available  is to convert to a leach only operation, whereby leaching of the approximately 11 million tons of ore previously placed on the leach pad will continue as long as enough copper is recovered to produce a positive cash flow.  There remains about 900,000 tons of ore that is uncovered and will be mined and placed on the heap before the mining operation is curtailed in early 2008.  This ore will be primary crushed and placed on the pads with trucks.  Including this ore, there will be an inventory of approximately 40 million pounds of contained copper that may be recoverable over the next 1 to 3 years, based on the leach recovery rate, copper market prices, and operating costs.  The secondary crushing plant, agglomerator and stacking system will be shut down, cleaned out, and partially disassembled for eventual sale. 

LVM will reduce its workforce from about 159 to about 58 employees required for the ongoing leach operation.  WARN Act notices will be distributed this afternoon to those employees whose positions will be eliminated, with the layoff date in late January and early February, 2008.  The Company regrets that this action has become necessary, and will try to minimize the impact upon the affected employees.

The Company continues to evaluate financing alternatives.  Negotiations with the counterparty on the Company's forward sales contracts are progressing positively.  In connection with the negotiations, LVM has closed out half of its outstanding copper forward sales contracts, 7.385 million pounds, at a copper price of $3.08 per pound, resulting in a fixed settlement of approximately $9.0 million, to be paid over the original maturities.  In addition, remaining forward sale contracts, originally placed at an average price of $1.86 per pound, will be settled at average monthly copper prices. 

Converting LVM to a leach only will assist in minimizing the cash drain on the Company, but as stated in the November 23, 2007 release, the Company requires additional cash to continue the reduced operations

For further information please contact:

Constellation Copper Corporation
Patrick M. James, Chairman & CEO
Michelle Hebert, Manager-Corporate Affairs
Tel: (720) 228-0055
Toll Free: 1-877-370-5400
Fax: (303) 863-1736
info@constellationcopper.com
www.constellationcopper.com

Renmark Financial Communications Inc.
Neil Murray-Lyon nmurraylyon@renmarkfinancial.com
Barbara Komorowski : bkomorowski@renmarkfinancial.com
Media : Vanessa Napoli : vnapoli@renmarkfinancial.com
Tel.: (514) 939-3989 
Fax : (514) 939-3717
www.renmarkfinancial.com 

This press release contains certain for ward-looking statements. In certain cases, forward-looking statements can be identified by the use of words such as "plans", "expects" or "does not anticipate", or "believes", or variations of such words and phrases or statements that certain actions, events or results "may", "could", "would", "might" or "will be taken", "occur" or "be achieved".   Forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements.  Such factors include, among others, risks related to changes in commodity and power prices, changes in interest and currency exchange rates, inaccurate geological and metallurgical assumptions (including with respect to the size, grade and recoverability of mineral reserves and resources), unanticipated operationa l difficulties (including failure of plant, equipment or processes to operate in accordance with specifications, cost escalation, unavailability of materials and equipment, delays in the receipt of government approvals, industrial disturbances or other job action, and unanticipated events related to health, safety and environmental matters), political risk, social unrest, and changes in general economic conditions or conditions in the financial markets.  Although the Company has attempted to identify important factors that could cause actual actions, events or results to differ materially from those described in forward-looking statements, there may be other factors that cause actions, events or results to differ from those anticipated, estimated or intended.  There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements.  Accordingly, r EADERS SHOULD NOT PLACE UNDUE RELIANCE ON FORWARD-LOOKING STATEMENTS.