UW Underworld Resources Inc.

Underworld Resources Inc. (TSX VENTURE: UW) is pleased to announce that results have been received from a new, deep gold-silver rich zone at the White Gold Property, Yukon Territory. Hole WD09-31 returned 10.5 meters averaging 4.8 g/t Au and 38.2 g/t Ag starting at 401.5 meters within a breccia zone underlying the Golden Saddle Zone. Previously released results from the overlying zone at Golden Saddle include (see NR UW2009 NR#7, May 27 2009):

- WD09-28: 1.84 g/t Au over 102.5 meters from 105 to 207.5 meters

- WD09-29: 3.94 g/t Au over 59.9 meters from 146.1 to 206.0 meters

- WD09-31: 3.59 g/t Au over 98.3 meters from 105.7 to 204.0 meters

The deep breccia zone within WD09-31 occurs from 401.5 to 412.0 meters and includes 9.40 g/t Au and 73.3 g/t Ag over 3.4 meters, underlying the upper zone in this hole. WD09-31 was lost at 414.8 meters due to depth limits of the diamond drills currently in use at Golden Saddle. Underworld is mobilizing a more powerful drill rig to the White Gold Property with capacity to test this new zone to greater depth.

Mineralization in the deep Hole 31 breccia zone is hosted in a milled hydrothermal breccia with interstitial pyrite and specular hematite. The discovery of this zone suggests the potential for stacked mineralized structures within Golden Saddle. Furthermore, the Ag/Au ratios within the "upper" Golden Saddle zone are typically greater than 1:3 whereas the Ag/Au ratios in the "lower breccia" Golden Saddle zone is 8:1. This type of mineral zonation is often associated with intrusion-related gold deposits is suggestive and suggests that there may be an intrusive source to mineralization at depth.

Two diamond drills are currently on the White Gold Property, and have completed nine holes at the Golden Saddle zone, and five holes at Arc zone (located two kilometers southeast of Golden Saddle). Results from these drill holes will be released following closure of the Company's pending financings (see UW NR#8 June 3rd, 2009).

Quality Assurance

Underworld has implemented a rigorous QA/QC program at the White Gold Property using best industry practice. Elements of the program include chain of custody of samples, standard and blank samples are submitted, with drill core sawn in half and shipped in sealed bags to ALS Chemex Laboratories in Vancouver. The ongoing 2009 Exploration Program is directed by Adrian Fleming, M.A.I.G, RPGeo, M.Aus.I.M.M., President of Underworld Resources and a Qualified Person as defined by NI43-101. Mr. Fleming prepared, and approves of the content of this release.

Underworld Resources is a well-structured junior exploration company targeting precious metals in the Americas.

ON BEHALF OF THE BOARD OF DIRECTORS

Adrian Fleming, President

Forward Looking Statement

Some of the statements contained in this press release are forward-looking statements. Forward-looking statements are not historical facts and are subject to a number of risks and uncertainties beyond the Company's control, including, but not exclusively, statements regarding potential mineralization, exploration results, completion of work program and studies, and future plans and objectives of the Company. Resource exploration, development and operations are highly speculative, characterized by a number of significant risks, which even a combination of careful evaluation, experience and knowledge may not eliminate, including, among other things, unprofitable efforts resulting not only from the failure to discover mineral resources but from finding mineral deposits which, though present, are insufficient in quantity and quality to return a profit from production.

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

Contacts: Underworld Resources Inc. Jeff Sundar Investor Relations 604-684-4001 604-484-7155 (FAX) info@underworldresources.com www.underworldresources.com