Toronto, Ontario, September 24, 2007. Roxmark Mines Limited (TSXV – RMK)

today announced that it has signed a letter of intent with Premier Gold Mines Limited

(TSX – PG) for a joint venture to actively explore and earn interest in certain gold

properties owned by Roxmark in the Geraldton Camp of the Beardmore-Geraldton

Greenstone Belt of Northwestern Ontario.

Under the terms of the agreement which is subject to due diligence by Premier, Premier

has the option to earn a 51% interest in the properties over a four-year period by making

cash payments of $500,000, issuing 250,000 shares of Premier to Roxmark and carrying

out, as operator, $7 million in expenditures to advance the highly prospective high-grade

gold properties to a production decision. Premier also makes a firm commitment to $2.5

million in exploration expenditures in the first 12 months and to pay $100,000 in cash

and issue 100,000 shares of Premier to Roxmark on signing. Premier’s extensive

program, including diamond drilling is expected to begin immediately

The Agreement also provides that on completion of the initial earn-in, Premier will have

the right to increase its interest to 70% by carrying Roxmark at 30% and by paying to

Roxmark an additional $250,000 in cash and an additional 150,000 shares of Premier,

and by bringing one or more properties to a production decision over an additional fiveyear

period.

“This joint venture makes an ideal fit for Roxmark,” said Monir Younan, President. “It

pairs us with a strong, proven gold mining team who shares our enthusiasm for the

development prospects of the Beadmore-Geraldton Greenstone Belt, enables us to

concentrate on exploration and development on Roxmark’s high grade gold properties in

the Beardmore Camp closest to our fully-permitted mill, and creates shareholder value by

accelerating the potential development of our Geraldton properties.”

“Our immediate operational priorities as operators remain unchanged: to produce a 43-

101 compliant report to justify commercial development of the Northern Empire Mine

based on historic and recent drilling—and to advance development prospects for

molybdenum resources at our Nortoba-Tyson property,” Younan added.

About Roxmark Mines Limited:

Roxmark Mines Limited is the leader in gold and molybdenum exploration and

development in the historically significant Geraldton-Beardmore area of Northwest

Ontario. Roxmark has generated cash flow from bulk-sampled gold and molybdenum

processed at its fully-permitted mill and has the advantage of infrastructure from six

formerly highly productive gold mines located on its properties. These mines previously

produced nearly two million ounces of gold from high grade ore but were closed

primarily due to dramatically lower gold prices at the time and to boundary issues,

eliminated by Roxmark’s consolidation of key properties.

Premier Gold Mines Limited is a Canadian-based mineral exploration and development

company with diverse property holdings that include several projects and deposits in

Northwestern Ontario and a joint venture in Mexico. In the Red Lake gold mining camp,

two of these are operated in joint venture with Goldcorp Inc. (TSX - G). Premier’s

website www.premiergoldmines.com provides additional information

For more information, please contact:

Monir Younan, President Tel.: (416) 860-1636

Roxmark Mines Limited Fax: (416) 360-7355

801- 80 Richmond St. West E-mail: roxmark@on.aibn.com

Toronto, Ontario M5H 2A4 Website: www.roxmark.com