Tintina Resources Inc.: In-Fill Drill Results Further Reinforce Continuity of Upper Copper Zone at Sheep Creek Copper-Cobalt-Silver Project

VANCOUVER, BRITISH COLUMBIA--(Marketwire - June 28, 2011) - Tintina Resources Inc. ("Tintina" or the "Company") (TSX VENTURE:TAU) is pleased to announce that it has received additional assay results for a further 11 drillholes from this year's drill program on its Sheep Creek Copper-Cobalt-Silver property ("Sheep Creek") located in Central Montana, USA (see Image 1 & 2: http://media3.marketwire.com/docs/tau-maps-0628.pdf).

Highlights from Upper Copper Zone in-fill drill program at Strawberry Butte:

• Drill hole SC11-039 drilled 9.34 meters grading 2.38% Copper (Cu), 0.32% Cobalt (Co) and 21.9 g/tonne Silver (Ag)

• Drill hole SC11-041 drilled 10.13 meters grading 2.03% Cu, 0.11% Co and 11.4 g/tonne Ag and a second interval of 6.80 meters grading 2.45% Cu, 0.06% Co and 14.7 g/tonne Ag

• Drill hole SC11-043 drilled 11.99 meters grading 1.51% Cu, 0.12% Co, and 24.0 g/tonne Ag

• Drill hole SC11-044 drilled 6.30 meters grading 2.06% Cu, 0.13% Co, and 20.6 g/tonne Ag.

The Company has two drill rigs currently completing in-fill and expansion drilling of the Upper Copper Zone (UCZ) massive sulfide on the Strawberry Butte target area. In addition, the Company has completed 25 drill holes for which assay results are pending and plans an additional 6 holes to further in-fill and expand the UCZ resource. The results of this drill campaign will be used to upgrade the UCZ resource to Measured and Indicated status. These results further confirm the continuity of high copper grades throughout the UCZ and continue to expand the known margins of the deposit.

The UCZ currently has an Inferred Resource containing 7 MMT grading 2.4% Cu, 0.12% Co, and 12.3 g/tonne Ag using a 1.5% Cu cut-off grade – see News Release dated January 6, 2011. The Company has initiated a Preliminary Economic Assessment on the UCZ to determine project economics and has started collecting environmental baseline information in preparation for an environmental assessment report and project permitting.

The Company is also preparing an initial Inferred Resource estimate for the Lower Copper Zone massive sulfide at Strawberry Butte, and has initiated resource definition drilling on both the Lower Copper Zone and Middle Copper Zone massive sulfides on the Strawberry East target area where copper mineralization is associated with multiple mineralized horizons.

Jerry Zieg, Vice President of Exploration for the Company is a Qualified Person for the purposes of National Instrument 43-101 and has reviewed and approved the information of a scientific nature contained in this news release. Assays for this program have been completed by ALS Chemex including duplicates, standards, and blanks for QA/QC purposes.

About Tintina

Tintina Resources is a growth company focused on the exploration and development of precious and base metal properties around the world. The Company's experienced Board of Directors and Management Team, are focused on advancing the Sheep Creek Copper-Cobalt-Silver property in Montana towards a production decision. The Company is also exploring an impressive portfolio of gold and base metal projects in Alaska, including the Colorado Creek gold project located in southwest Alaska in the same region as the 40 million ounce Donlin Creek project.

About Sheep Creek

The Sheep Creek deposit is located approximately 27 km north of White Sulphur Springs along a well maintained gravel road and within two miles of U.S. Highway 89. The Sheep Creek property consists of approximately 12,225 acres of fee simple lands and mining claims in central Montana. The property contains sediment-hosted zones of massive sulfide mineralization originally explored by Cominco American Inc. and BHP during the 1980's and early 1990's. Historical drilling encountered significant zones of strata-bound copper sulfide with associated cobalt and silver mineralization in multiple bedded massive pyrite horizons in the lower part of the Precambrian Belt Supergroup. This same stratigraphic unit hosts the famous Sullivan zinc-lead-silver deposit in southeastern B.C. In a short period of time the Company has been able to establish an Inferred Resource on the Upper Copper Zone at Strawberry Butte (please see the Company's News Release dated January 6, 2011) and continues to evaluate four additional known tabular mineralized zones along a four kilometer strike length. The Company has two drill rigs on site and will continue drilling over the course of 2011.

ON BEHALF OF THE BOARD OF DIRECTORS

Louis A. Lepry, Jr., President & CEO

Cautionary Note Regarding Forward-Looking Statements: Certain disclosure in this release, including statements regarding the Company's plans for and intentions with respect to exploration of the Company's Sheep Creek property, constitutes "forward-looking statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and Canadian securities legislation. In making the forward-looking statements in this release, the Company has applied certain factors and assumptions that the Company believes are reasonable, including that the Company is able to obtain any government or other regulatory approvals and any financing required to complete the Company's planned exploration activities, that the Company is able to procure equipment and supplies in sufficient quantities and on a timely basis, that the Company's exploration activities on the Sheep Creek property will not be affected by actions of environmental activists or other special interest groups and that actual results of exploration activities are consistent with management's expectations. However, the forward-looking statements in this release are subject to numerous risks, uncertainties and other factors relating to Tintina's operation as a mineral exploration company and the Sheep Creek property that may cause future results to differ materially from those expressed or implied in such forward-looking statements.Such uncertainties and risks include, among others, actual results of the Company's exploration activities being different than those expected by management, uncertainties involved in the interpretation of drilling results and geological tests, delays in obtaining or inability to obtain required government or other regulatory approvals or financing, interference with Tintina's exploration activities by environmental activists or other special interest groups, inability to procure equipment and supplies in sufficient quantities and on a timely basis, equipment breakdowns, and bad weather. There can be no assurance that such statements will prove to be accurate, and actual results and future events could differ materially from those anticipated in such statements. Readers are cautioned not to place undue reliance on forward-looking statements. Tintina Resources Inc. does not intend, and expressly disclaims, any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise, except as required by law.