Calypso Clarifies Previous Disclosure

Calypso Uranium Corp. ("Calypso" or the "Company") (TSX VENTURE:CLP) is issuing
this news release as a result of a review by the British Columbia Securities
Commission ("BCSC") and to clarify previous disclosure.


La Pintada Project, Argentina

The Company's La Pintada Project is located in Mendoza Province, Argentina. The
Company's website (the "Website") previously included disclosure of a uranium
resource estimate for the La Pintada Project. The La Pintada Project was
previously the subject of diamond core drill programs conducted by the National
Atomic Energy Commission ("CNEA") in the 1970's. The previously reported
historical resource estimate, which was based on information from an unpublished
CNEA technical report (La Pintada, 1980, by Perez, CNEA unpublished), was small
and immaterial to the Company. 


The previously disclosed historical resource estimate did not use the resource
categories prescribed by Canadian National Instrument 43-101 ("NI 43-101")
adopted by the CIM Council and also did not include the information required by
NI 43-101 regarding quantities and grades of resources. A qualified person has
not been able to verify the resource estimate and is not able to classify such
estimate as current mineral resources in accordance with NI 43-101. The Company
is not treating this resource estimate as a current mineral resource as defined
in NI 43-101 and this resource estimate is not necessarily indicative of
potential quantities or grades of mineralization on the Company's La Pintada
Project. Because the previously disclosed uranium resource was not compliant
with NI 43-101 disclosure requirements applicable to all disclosure of resource
estimates, the Company retracts its prior disclosure of the uranium resource.


Adjacent and Proximate Properties

The Website also previously included disclosure of resource estimates for the
Sierra Pintada uranium mine. The Company's La Pintada Project is located
adjacent to and surrounds the southern portion of the Sierra Pintada uranium
mine properties. The Sierra Pintada uranium mine is not owned by the Company and
is controlled by CNEA. The Sierra Pintada uranium mine was in production from
1976 until 1998, after which it was put into stand by. The information relating
to the reserves and grades at the Sierra Pintada uranium mine was derived from
public disclosure made by CNEA including a report titled "Yacimiento Doctor
Baulies y otros depositos del distrito uranifero Sierra Pintada, Mendoza",
Salvarredi, Julio, 1999 at "Recursos Minerales de la Republica Argentina", Ed.
E. O. Zappettini, Instituto de Geologia y Recursos Minerales SEGEMAR, (Anales
35: 895-906, Buenos Aires). A further report titled "The Uranium 2011:
Resources, Production and Demand", 2012, by the Organisation for Economic
Co-operation and Development ("OECD"), Nuclear Energy Agency ("NEA"), and
International Atomic Energy Agency ("IAEA") (OECD 2012 NEA N degrees 7059),
includes new resource estimates for the Sierra Pintada uranium mine as of
January 1, 2011 (the "Uranium 2011 Report").


The Company's news release dated February 22, 2012 (the "February News Release")
and the Website previously included disclosure about resource estimates about
the Cerro Solo uranium deposit. The Cerro Solo deposit referred to in the
February News Release and the Website is a deposit controlled by the CNEA and
not by the Company. CNEA's Cerro Solo deposit is located approximately 30km
north of the Company's San Blas properties included in the Company's San Jorge
Basin Project. The Cerro Solo deposit has been the subject of extensive
historical exploration activity. Resource estimates for the deposit included in
the February News Release and the Website were extracted from in public reports
released by CNEA, titled, "El Deposito Cerro Solo", 2005, Comision Nacional de
Energia Atomica, Argentina" and "El Proyecto Cerro Solo, Provincia de Chubut: Un
proyecto promisorio, 2007, Comision Nacional de Energia Atomica. Argentina".
Further disclosure of resource estimates was included in the Uranium 2011
Report.


The previously disclosed resource estimates regarding the CNEA's Cerro Solo
deposit and the CNEA controlled Sierra Pintada uranium did not use the resource
categories prescribed by NI 43-101 adopted by the CIM Council, and did not
include the information required by NI 43-101 regarding quantities and grades of
resources. A qualified person has not been able to verify the previously
disclosed resource estimates and is not able to classify such estimates as
current mineral resources in accordance with NI 43-101. The Company is not
treating these estimates as current mineral resources as defined in NI 43-101
and these estimates are not necessarily indicative of potential quantities or
grades of mineralization on the Company's own properties. Because of their
non-compliance with NI 43-101, the Company retracts its prior disclosure of the
uranium or U3O8 resource or reserve estimates for the adjacent Sierra Pintada
and nearby Cerro Solo properties.


As previously disclosed by the Company, the Company has placed all operations on
the Company's properties in Argentina on care and maintenance and has closed its
Mendoza office. 


Guillermo Pensado, the Company's VP of Exploration, a Qualified Person as
defined by NI 43-101, approved this news release.


About Calypso

Calypso Uranium Corp. is a mineral exploration company whose principal focus is
the exploration and development of uranium properties in Argentina. Calypso
holds approximately 442,000 hectares or 4,420km2 of claims and mineral
concessions in the provinces of Chubut, Mendoza and Neuquen. Further information
is available under the Company's profile at www.sedar.com.


CALYPSO URANIUM CORP.

Stephen Barley, President & CEO

Shares Outstanding: 50,630,819

FOR FURTHER INFORMATION PLEASE CONTACT: 
Calypso Uranium Corp.
Investor Relations
1-604-639-4671
1-604-639-4670 (FAX)
[e-mail]
www.calypsouranium.com