2007-05-30 - News Release

Mr. Alexander Helmel reports

PRELIMINARY TRENCH AND PIT RESULTS CONFIRM HIGH SURFACE COPPER AND CLARIFY GOLD ZONE AT CALDERA

Vancouver, British Columbia: Network Exploration Ltd. (the "Company") (TSX.V: NET.H) is pleased to announce encouraging preliminary results from the phase II exploration program at its Caldera gold and copper project in Chile. Initial sample results from trench and test pits indicate high surface copper values of up to .48% copper and the discovery of two 35 meter trench sections averaging .43 g/t gold clarify a gold zone on the property.

The Company’s recent trenching program was designed to analyze the near-surface presence of copper and gold at the 2700 hectare Caldera property located in the mineral-rich Huasco Province of Chile. After careful consideration, senior geologist Mr. Marco Fernandez-Concha determined locations for 12 exploration lines and 11 excavator trenches across both the copper and gold targets on the property.

Preliminary assay results over trench N15 - a 105 meter trench at the North East edge of the copper zone – have shown two 35 meter sections averaging 0.43g/t gold. These findings clarify the presence of a gold zone at Caldera previously suspected due to anomalous surface gold samples found on the property of up to 6.6 g/t (reported Aug ‘06). The newly discovered gold zone will require further exploration.

Copper target results from test lines and trenches indicate widespread near-surface copper values averaging up to .48% copper over 10 meter lengths. Preliminary trench results in the copper zone show 150 meters of 1921ppm, 180 meters of 1628ppm copper, and 170 meters of 1311ppm copper. The highest values received from 10 meter trench and pit samples were 4770ppm, 4440ppm, and 4300ppm copper.

These values are encouraging as the potential for significant subsurface mineralization due to weathering and leaching of surface rock is indicated by assay values over 100ppm copper and 100ppb gold at surface. These surface factors can result in an accumulation of mineralization at lower levels. Exhibiting this theory, the Quebrada Blanca mine in Chile has found a subsurface supergene mineralization averaging 80 meters in thickness overlain for the most part by a 100 meter thick, low-grade or waste leached cap, and unmineralized rock and gravels. As 29.4% of Caldera’s 494 trench and test pit samples returned copper values over 500ppm, this is an indication of a possible ore-body at depth.

“The Chuquicamata Copper mine in Chile – one of the worlds largest open pit copper mines - was extracting copper ore at grades averaging 0.65% from depths up to 650 meters,” says Director of International Operations Mr. Richard Schnoor. “As weathering and leaching of surface rock over time can lead to lower mineral presence at surface and an accumulation of mineralization at depth, the consistent copper values we are finding in our trenches may indicate subsurface mineralization and the potential for an economic ore body. Our upcoming drill program will test this possibility.”

“I am pleased with the results from this exploration program at Caldera. The results show high copper values on surface and substantiate the presence of a gold zone surrounding Trench N15. We are now prepared for the upcoming drill program at the Caldera property,” says Senior Geologist Mr. Marco Fernandez-Concha.

Complete results are expected in early June and will be added to the NI 43-101 report by independent Geological Engineer Mr. Peter Folk. Upon completion of Mr. Folk’s report and the closing of the current financing, Network Exploration will apply for graduation to Tier II of the TSX using the Exchange-approved Caldera property as its qualifying property. Successful Tier II graduation will result in the removal of the .H from the trading symbol, less restrictive financing and operating restrictions, and exposure to a larger group of both private and institutional investors in the public equities markets.

Network Exploration Ltd. is a mineral exploration Company committed to building shareholder value through the acquisition of base and precious metal properties in North and South America. For additional information, contact the company at 604 638-7363 (toll free 866 637-5138).

Network Exploration Ltd.
www.networkexploration.com
(604) 638-7363

We seek Safe Harbor.

THE TSX VENTURE EXCHANGE HAS NOT YET REVIEWED AND DOES NOT TAKE RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THE CONTENT OF THIS NEWS RELEASE. This news release contains certain "Forward-Looking Statements" within the meaning of Section 21E of the United States Securities Exchange Act of 1934, as amended. All statements, other than statements of historical fact, included herein are forward-looking statements that involve various risks and uncertainties. These statements include "characteristics of a gold and copper porphyry system with excellent geological potential". There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from the Company's expectations are disclosed in the Company's documents filed from time to time with the British Columbia Securities Commission and the United States Securities & Exchange Commission.