(“Queenston or the Company”) is pleased to announce high-grade results from two drill holeson the 100% owned Upper Beaver property located in Kirkland Lake, Canada

Highlights

Hole UB11-200W1 is the first deep drill hole to target the down plunge extension of the East Porphyry Zone at 190 metres (“m”) below and 100 m east of the existing mineral resource.

This hole intersected 13.7 grams per tonne (“g/t”) gold (“Au”) with 0.6% copper (“Cu”) over 6.0 m including 30.2 g/t Au with 1.15% Cu over 2.5 m at a depth of 1,450 m.

Hole UB11-174W12 is part of the infill drilling program to grade the mineral resource in

the East Porphyry Zone and intersected 49.9 g/t Au with 0.8% Cu over 7.0 m including 261.4 g/t Au with 3.13% Cu over 1.0 m at a depth of 1,000 m.

Charles Page, President and CEO of Queenston states, “We are excited with the results of drill hole UB11-200W1 that extends the Porphyry Zone a further 190 m down plunge. This is the deepest exploration drill hole on the property to date and the assay results from both this intercept and infill hole UB11-174W12 continue to display the high-grade nature of the deposit. The strength of these deep results provides confidence that further exploration will continue to extend the deposit to depth and to

the east. These new holes along with 84 others completed in 2011 will be included in a resource update at Upper Beaver, due in the third quarter. As the deposit expands we anticipate a solid increase in the resource size and to accelerate exploration, we will be increasing the number of drill rigs on the property from four to six.”

Details of the new drilling results are listed in Table 1 accompanying this news release.

To view a schematic showing the new hole locations, please see accompanying figure.

Activity at Upper Beaver

Four drill rigs continue to operate on the property both grading/expanding the existing resources and

extending the footprint of the new near surface mineralization. Two additional drills will be added to the

Upper Beaver property to assist in the shallow drilling program.

In addition to the ongoing exploration activity and as a result of the positive Preliminary Economic

Assessment (“PEA”) prepared by P&E Mining Consultants Inc. of Brampton, Ontario (see news release

dated February 16, 2012) the Company is advancing the project to feasibility and has approved the

development of an exploration shaft to provide access for bulk sampling and confirmation of the

mineability/continuity of the deposit.

The PEA incorporated the mineral resource at Upper Beaver that was announced in May 2011

containing 3,074,000 t grading 6.98 g/t Au (690,000 ounces (“oz”)) with 0.54% Cu (36.6 million pounds

(“M lbs”)) (Indicated) and 3,093,000 t grading 6.19 g/t Au (616,000 oz) with 0.42% Cu (28.0 M lbs)

(Inferred). The mineral resource does not include drill results after December 31, 2010. During 2011

an additional 84 drill holes and wedge holes (41,019 m) were drilled on the project both upgrading and

extending the footprint of the deposit. A resource update is planned for the third quarter of 2012 and

will include the drilling conducted in calendar 2011 as well as the early part of 2012.

Quality Control

The design of the Queenston’s drilling programs, Quality Assurance/Quality Control and interpretation

of results is under the control of Queenston’s geological staff including qualified persons employing a

QA/QC program consistent with NI 43-101 and industry best practices. The Upper Beaver project is

supervised by Queenston’s Vice President Exploration, William McGuinty, P.Geo. A detailed review of

Queenston’s QA/QC procedures is filed in the 2010 Annual Information Form on SEDAR. The drill core

is logged and split with half-core samples shipped to Swastika Laboratories of Swastika, Ontario and

Accurassay Laboratories Ltd. of Thunder Bay, Ontario and analyzed employing the appropriate gold

fire assaying techniques. For QA/QC purposes the Company as well as the lab submit standards and

blanks every 25 samples. Approximately 5% of sample rejects and/or pulps are sent to other

laboratories for check assaying.

This news release was reviewed by Queenston’s Vice President Exploration and QP, William

McGuinty, P. Geo.

About Queenston

Queenston is a Canadian mineral exploration and development company with a primary focus on its

holdings in the historic Kirkland Lake gold camp comprising 235 km² of prime exploration lands. The

Company’s assets include 6, 100% owned gold deposits, all with NI 43-101 compliant mineral

resources and ongoing exploration and development. The objective of the Company is to advance the

flagship Upper Beaver project towards feasibility and production. The project is currently being

permitted for advanced exploration leading to new shaft development with site preparation beginning in

2012. The Company is also very active in exploring and advancing five other 100% owned deposit that

will provide additional feed for a central milling facility. The Company has cash and short-term

investments of approximately $75 million, no debt and a fiscal 2012 exploration/development budget of

$35 million.