The Full NI 43-101 Report for Macusani Yellowcake Corachapi Uranium Project in Peru is Now Available on SEDAR

TORONTO, ONTARIO -- (Marketwire) -- 10/25/10 -- Macusani Yellowcake Inc. (the 'Company') (TSX VENTURE: YEL) (FRANKFURT: QG1) is pleased to announce the full independent National Instrument ('NI') 43-101 compliant resource estimate for its 100% owned Corachapi Property, Peru is now available on SEDAR (www.sedar.com).

A summary of the Company's Corachapi resource estimate (previously issued in a September 8th, 2010 press release) and the recently updated Colibri 2&3 resource estimate (see August 3rd, 2010 press release) are summarized in the table below.

                                     Corachapi                   Colibri 2&3
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Measured                   0.3 M lbs (1.0 M t)
Resources (i)       0.014% U3O8 (0.28 lbs/ton)                            na
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Indicated                 4.7 M lbs (10.6 M t)           5.4 M lbs (9.2 M t)
Resources (i)       0.020% U3O8 (0.40 lbs/ton)    0.027% U3O8 (0.53 lbs/ton)
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Inferred                    1.9 M lbs(3.8 M t)         15.1 M lbs (34.3 M t)
Resources (i)       0.023% U3O8 (0.46 lbs/ton)    0.020% U3O8 (0.40 lbs/ton)
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Ownership                                 100%                          100%
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Strike Length
Drilled                                    32%                           82%
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Down-dip
Extension                                 open                          open
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(i)75 ppm cutoff grade

The full NI 43-101 reports are available at www.sedar.com or www.macyel.com/reports.

Private Placement Update

Further to the Company's October 20, 2010 press release announcing a private placement offering, the lead agent will have the right to over-allot the offering by up to an additional 25%, if required.

Qualified Person

Mr. David Robert Young, B.Sc. (Hons), FGSSA, MSAIMM, FAusIMM, Pr Sci Nat (400989/83) of The Mineral Corporation, South Africa, an independent consultant to the Company, is a Qualified Person as defined under National Instrument 43-101, and has reviewed the scientific and technical data contained in this release.

About Macusani Yellowcake

Macusani Yellowcake Inc. is a Canadian uranium exploration company with over 24,000 hectares (240 km2) of mineral properties in southeastern Peru, on the Macusani Plateau. The shares are traded on the TSX Venture Exchange under the symbol 'YEL' and on the Frankfurt Exchange under the symbol 'QG1'.

There are 59,881,284 common shares of Macusani Yellowcake Inc. outstanding.

This news release includes certain forward-looking statements concerning the future performance of Macusani's business, operations and financial performance and condition, as well as management's objectives, strategies, beliefs and intentions. Forward-looking statements are frequently identified by such words as 'may', 'will', 'plan', 'expect', 'anticipate', 'estimate', 'intend' and similar words referring to future events and results. Forward-looking statements are based on the current opinions and expectations of management. All forward-looking information is inherently uncertain and subject to a variety of assumptions, risks and uncertainties, including the speculative nature of mineral exploration and development, fluctuating commodity prices, competitive risks and the availability of financing, as described in more detail in the Company's recent securities filings available at www.sedar.com. Actual events or results may differ materially from those projected in the forward-looking statements and Macusani cautions against placing undue reliance thereon. Neither Macusani nor its management assume any obligation to revise or update these forward-looking statements.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Contacts:

Macusani Yellowcake Inc.

Peter Hooper

President

(416) 360-3402
peter@macyel.com
www.macyel.com