Macusani Yellowcake Inc.
TSX VENTURE : YEL

Macusani Yellowcake Inc.

May 14, 2008 10:44 ET

Macusani Yellowcake Announces That the Strike Length of Anomaly Continues to Grow. It has now Been Tested Over a Continuous 1.8 Kilometres and Still Open Ended East and West

TORONTO, ONTARIO--(Marketwire - May 14, 2008) - In the press release issued today at 9:27AM ET, the title was broken up into two sections. It should be read as one complete title. The complete release follows.

Macusani Yellowcake Inc. ("Macusani") (TSX VENTURE:YEL) -

Peter Hooper, President of Macusani stated: "We continue to step out to the West with two drills and to date every hole has been mineralized with potential heap leach uranium material".

Macusani Yellowcake Inc. ("Macusani") (TSX VENTURE:YEL) is pleased to announce assay results from the ongoing drilling program at its Colibri II uranium property on the Macusani Plateau in southeastern Peru. These latest holes were drilled from the two drill collars that have been designated as Platform 5 ("P05") and Platform 14 ("P14"). The locations of the drill platforms are shown on the Macusani web site.

As with the previous intercepts (see previous press releases dated November 12, 2007, December 14, 2007 and February 18, 2008) each hole intersected multiple horizontally-oriented uraniferous zones at depths starting at surface down to 62.00 m. The uranium minerals are hosted in acidic volcanic rocks of rhyollite composition that cover large portions of the Macusani Plateau in "blanket like" formations from surface to a depth of approximately 100 m.

The assay results from our last seven holes are shown in the table below (Note: The interval lengths are measured along the core length and may not represent true widths.):



Borehole Depth
From To Interval U3O8 U3O8
(m) (m) (m) (%) (lb/t)

DD1 Vertical-P14 (66.6m) 0.00 4.80 4.80 0.1534 3.068

DD2 NorthWest-P14 (71.10m) 0.00 2.30 2.30 0.0653 1.306

DD3 SouthWest-P14 (70.00m) 0.00 9.00 9.00 0.1341 2.682

DD1 Vertical-P05 (90.40m) 0.00 12.05 12.05 0.0130 0.260
17.10 22.22 5.12 0.0149 0.298

DD3 South-P05 (72.43m) 0.00 3.65 3.65 0.0088 0.176
23.40 28.70 5.30 0.0113 0.226

DD3 East-P05 (47.30m) 0.00 1.37 1.37 0.0116 0.232
9.67 18.90 9.23 0.0276 0.552
26.90 30.00 3.10 0.0146 0.292
34.72 36.72 1.87 0.0130 0.260

DD5 West-P05 (80.20) 0.00 1.50 1.50 0.0068 0.136
7.70 13.20 5.50 0.0218 0.436
17.22 18.20 0.98 0.0105 0.210
20.90 21.80 0.90 0.0103 0.206
24.90 25.33 0.63 0.0194 0.388
37.40 38.80 1.40 0.0113 0.226
42.25 43.65 1.40 0.0180 0.360
46.37 47.77 1.40 0.0136 0.272


Quality Control

The Company employs a QA/QC protocol on all aspects of its analytical procedures. Whole core samples are sent to SGS Laboratories Peru in Lima, Peru. Samples are taken in intervals depending on the geological boundaries and type of mineralization (veins, veinlets, stockwork, dissemination, non-mineralized) but usually not more than 1m per sample. At SGS in Lima the core samples are crushed, pulverized, homogenized and a 250g riffled representative sample analyzed for Uranium using ICP-MS techniques on a suite of 50 chemical elements.

Two blank sample and two standards covering a range of grades are inserted every 50(th) sample. The pulps are stored at present at SGS in Lima.

Mr.Ian Foreman P.Geo., of Foremost Geological Consulting, is the Qualified Person, as defined under National Instrument 43-101, for the Colibri Property and has reviewed the technical information used in the preparation for this release. All aspects of the exploration program, are supervised by Dr.Laurence Stefan, Ph.D. (Economic Geology), a Director of Macusani, who is responsible for all scientific and technical information.

About Macusani Yellowcake Inc.

Macusani controls over 20,000 hectares (2,000 km2) of mineral properties on the Macusani plateau in Peru.

There are 24,296,285 common shares of Macusani Yellowcake Inc. outstanding, 32,876,260 common shares, fully diluted.

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

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