NR 73 -Liberty Star Receives Expression of Interest by More Than One Global Mining Company for JV at Big Chunk

TUCSON, Ariz.–April 10, 2008–Liberty Star Uranium & Metals Corp. (the “Company”) (OTCBB: LBSU ) is pleased to announce that there have been expressions of interest by more than one large global mining company in Joint Venturing the Company’s Big Chunk Super Project adjacent to the Northern Dynasty Pebble Deposits. It is worth noting that these expressions came within two days of NR-72 expressing the Company’s interest in finding such a JV partner.

It is early in the process and the Company has no way of judging whether such a joint venture partnership deal will come to fruition. However, we are optimistic that it will. The technical data including geologic, geophysical and geochemical data are extensive, detailed (please see News Release 72) and of the highest standards of accuracy. They have undergone QA/QC (Quality Assurance/ Quality Control) and meet Canadian Instrument 43-101 rules, though a technical report has not been written, as Liberty Star is a U.S. company. The data clearly show anomalies and characteristics of the caldera structure. A virtual data room will be set up to allow potential partners to review all of the pertinent data during an examination period. The Company will then be able to evaluate Joint Venture proposals received, if any.

ON BEHALF OF THE BOARD OF DIRECTORS

“James A. Briscoe”

James A. Briscoe, President/Director

About Liberty Star’s Big Chunk Super Project

The Company currently holds 707 State of Alaska 160 acre mineral claims, spanning about 177 square miles centered 25 miles northwest of the village of Iliamna on the north shore of Lake Iliamna. The Big Chunk claims adjoin Northern Dynasty’s Pebble Project on the north and west borders, forming a large half donut shape. Included is the Baltusrol block about 8 miles north which covers a large area of Porphyry copper mineralization. Three properties held by Liberty Star, Northern Dynasty and Full Metal Minerals cover the entirety of the Big Chunk caldera, the volcanic-intrusive feature thought to be the source of mineralization in the area. For many decades it has been known by geologists that Porphyry copper-gold-moly deposits occurred in clusters. It is now well recognized that this clustering is related to very large explosive volcanic features known as calderas. The circular moat structure in a caldera is frequently mineralized. Examples of mineralized caldera moat structures or caldera edges include Silver Bell, AZ, Round Mountain, NV, Tombstone, AZ, Mission–Sierrita mining District, AZ. The similarity of the Pebble mineral pattern published by Northern Dynasty Mining in 1973 led geologist Jim Briscoe to recognize its similar pattern to the Silver Bell, AZ Porphyry copper-moly deposits on the moat structure of the Silver Bell caldera and resulted in the land acquisition by Liberty Star along the moat structure of the Big Chunk Caldera, which includes the Pebble deposit.

SAFE HARBOR STATEMENT

Statements in this news release that are not historical are forward-looking statements. Forward-looking statements in this news release include that we will joint venture with a partner to explore our Big Chunk property. It is important to note that the Company’s actual outcomes may differ materially from those statements contained in this press release. Factors which may delay or prevent these forward-looking statements from being realized include misinterpretation of data; that we may not be able to get any major mining company or any other potential partner interested in joint venturing exploration of our properties; we may not be able to get equipment or labor as we need it; that we may not be able to raise sufficient funds to complete our intended exploration; that weather, logistical problems or hazards may prevent us from exploration; that equipment may not work as well as expected; that analysis of data may not be possible accurately and at depth; and that despite encouraging data there may be no commercial

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