HALIFAX, NOVA SCOTIA--(Marketwire - March 1, 2010) - Ucore Uranium Inc. (TSX VENTURE:UCU) is pleased to provide an update on detailed mineralogical studies on surface and drill core samples from its Bokan Mountain rare earth element (REE) project.

The work is being led by Dr. A.N. Mariano, a renowned expert on REE minerals. Analyses are being made by traditional and state-of-the-art methods including standard petrography, cathodoluminescence, scanning electron microscope/backscattered electron imaging with energy dispersive X-ray analyses, X-ray energy mapping, and ultraviolet fluorescence.

To date, a wide variety of REE-bearing minerals have been identified, including apatite, iimoriite, kainosite, gadolinite, allanite, bastnaesite, parisite, brannerite, thalenite, xenotime, fergusonite, synchysite (Y), and monazite. Significantly, concentrates of iimoriite ((Y, REE)₂(SiO₄)(CO₃)) were made using simple heavy media separation techniques, with grain sizes up to 2 mm.

"Characterizing the mineralogy is an important aspect of evaluating any REE deposit," said Jim McKenzie, Ucore's President & CEO. "Many REE minerals have similar physical and chemical characteristics. Separating the complex REE minerals from the waste rock can be a challenge at any REE deposit. We are encouraged by the coarse grain size and liberation of iimoriite, a key REE mineral that has high concentrations of the more valuable heavy rare earths and has relatively simple refining properties. We already have previous metallurgical test reports by the US Bureau of Mines that indicate recoveries of more than 95% yttrium, and results of our new mineralogical studies will be used to develop bench-scale metallurgical investigations to determine the potential recovery of the full suite of light and heavy rare earth minerals and elements."

Preliminary results of the mineralogical studies will be presented at the Society for Mining, Metallurgy and Exploration (SME) Annual Meeting in Phoenix, Arizona this week by Ucore's Harmen Keyser and Dr. Mariano. The SME has recognized the increasing demand for, and a potential shortage of, rare earths to supply the US industrial and military complex with a special dedicated session.

The Bokan-Dotson Ridge project, located on Prince of Wales Island in southeastern Alaska, is 100% owned by Ucore with purchasable NSR's ranging from 2 to 4% on 84 of 512 claims. Additional properties continue to be held in Nunavut, Ontario, Labrador, and Newfoundland.

The technical content of this news release has been approved by Harmen Keyser, P.Geol., Ucore's Vice President of Project Development and a qualified person in accordance with NI 43-101.

About Ucore Uranium Inc.

Ucore Uranium Inc. is a junior exploration company focused on establishing REE and uranium resources through exploration and property acquisition. With multiple projects, Ucore's primary focus is the Rare Earth One operated Bokan – Dotson Ridge rare earth element and uranium project. The project is located on the southern part of Prince of Wales Island in southeastern Alaska, with excellent deep water access and proximity to major sea and rail shipping routes across North America and to Asia.

For more information, please visit our website: www.ucoreuranium.com.

On behalf of the Board of Directors

Ucore Uranium Inc.

James McKenzie

This press release includes certain statements that may be deemed "forward-looking statements." All statements in this release, other than statements of historical facts, that address future exploration drilling, exploration activities and events or developments that Ucore expects, are forward-looking statements. Although Ucore believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include exploitation and exploration successes, continued availability of financing, and general economic, market or business conditions.