Vancouver, May 21, 2008 - Canasil Resources Inc. ("Canasil" TSX-V: CLZ) announces that 16 HQ diamond drill holes for a total of 1,539 metres have been completed to investigate mineralized veins in the south-western area of the Colibri Project in Durango, Mexico. The Company has received assay results from the first 6 drill holes for a total of 519 Metres, and expects results from the remaining 10 drill holes for a total of 1,020 metres within the next 4 to 6 weeks.

The initial results from the 6 drill holes confirm the continuity of the Claudia vein with silver, lead and zinc mineralization for 165 metres along strike and to a depth of 110 metres. Significant intercepts are listed below (drill hole SC-08-03 did not return significant assays):

The Company has recently been informed of an outstanding historical claim covering the Claudia vein area where these initial 6 drill holes are located. This claim covers 48 hectares and does not affect the Sara vein area where the remaining 10 drill holes are located. Initial investigation of this claim indicates multiple irregularities, including non-payment of taxes for over 20 years. The Company is continuing to investigate and evaluate the status of this claim, which covers a very small part of the overall Colibri project claim area of over 16,000 hectares.   

The 100% owned Colibri project covers an area of 16,074 hectares (39,700 acres), located 70 km south-southeast of the City of Durango. There are numerous veins and mineralized structures, which have been traced on surface over a cumulative strike distance of 14 kilometres, within highly altered zones observed throughout the project area. The project has excellent road access and good local infrastructure for supporting exploration and mining operations, and is located within 75 km of the San Martin mine of Grupo Mexico, the La Colorada mine of Pan American Silver Corp., and the La Parrilla mine of First Majestic Resource Corp.  

The diamond drill program was supervised and carried out by the Company's wholly owned Mexican subsidiary, Minera Canasil S.A. de C.V., under the direction of Erme Enriquez, Director of Exploration and Development. Drill core was sent to the Company's core processing and storage facility in Durango, for processing and preparation of assay samples. Samples are cut by diamond saw, and half is sent for assay and half secured for reference. Samples are sent to the BSI Inspectorate Laboratories in Durangio for preparation and on to BSI Inspectorate Laboratories, Reno, Nevada for assay analysis for gold and silver by fire assay with an atomic absorption finish ("FA-AA") on a 30 gram split, and for copper, lead and zinc by digestion of 1.00 gram sample in aqua regia and analysis by AA. A duplicate set of pulp samples were also sent to ALS Chemex Laboratories in Vancouver for duplicate assays. Reference samples are routinely included in the sample stream. Gary Nordin, P. Geo. British Columbia and Director of Canasil, is the designated Qualified Person for this project in accordance with National Instrument 43-101.

About Canasil:

Canasil is a Canadian mineral exploration company with interests in precious and base metal properties in Durango, Sinaloa and Zacatecas States, Mexico, and in British Columbia, Canada. The Company's directors and management include industry professionals with a consistent track record of identifying and advancing successful mineral exploration projects. The Company is actively engaged in the exploration of mineral properties and evaluating additional acquisition opportunities.

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This news release contains certain statements that may be deemed "forward-looking statements".  All statements in this release, other than statements of historical fact, that address future production, reserve potential, exploration drilling, exploitation activities and events or developments that the Company expects to occur, are forward looking statements.  Although the Company 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 may differ materially from those in the forward-looking statements. Investors are cautioned that any such statements are not guarantees of future performance. Forward-looking statements are based on the beliefs, estimates and opinions of the Company's management on the date the statements are made.