Rio Cristal Zinc Grants Stock Options 

VANCOUVER, BRITISH COLUMBIA – (May 29, 2008) – Rio Cristal Zinc Corporation (the “Company” or “RCZ”) (TSX.V: RCZ), announces that 150,000 incentive stock options have been granted to Dr. Hans Flury, a Director of the Company, on April 14, 2008 pursuant to the Company’s Stock Option Plan.  The options are exercisable for a period of five (5) years at a price of $0.50 per share and are subject to vesting in accordance with the Company’s Stock Option Plan.

About Rio Cristal Zinc Corporation

Rio Cristal Zinc is a Canadian corporation focused on the discovery and future development of zinc deposits in Peru.  The principal asset of RCZ is the Charlotte Bongará claim block located in northern Peru within an emerging Mississippi Valley-type zinc district.   Additional information can be found on the Company’s website, www.riocristalzinc.com. 

For further information please contact Ross Knutson at:

Telephone:        (778) 588-6880

Toll Free:          (866) 609-9644

Fax:                  (604) 609-9946

E-mail:              This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

This news release includes certain "forward-looking statements" under applicable Canadian securities legislation. All statements other than statements of historical fact included in this release, including, without limitation, statements regarding potential exploration results, future plans and objectives of the Company are forward-looking statements that involve various risks and uncertainties. There can be no assurance that such statements will prove to be accurate and actual results and future results, events and objectives could differ materially from those anticipated in such statements.  Important factors that could cause actual results to differ materially from Rio Cristal’s expectations include exploration and other risks detailed from time to time in the filings made by the Company with securities regulators. 

THE TSX VENTURE EXCHANGE DOES NOT ACCEPT RESPONSIBILITY FOR THE ADEQUACY OR ACCURACY OF THIS NEWS RELEASE.