Oilsands Quest assessed the results of the formal strategic alternatives process launched on August 17, 2010, which explored options to enhance shareholder value. After opening a data room and holding discussions with several entities in recent months, Oilsands Quest has achieved a clear understanding of asset development that potential partners or purchasers are seeking.

Canpotex Limited (Canpotex) today signed a contract with Sinofert Holdings Limited (Sinofert) to supply 630,000 tonnes of potash during the second half of calendar 2011 at price levels which reflect an approximate $70.00 per tonne increase above the first half China price level.

Rubicon Minerals Corporation is pleased to announce the positive results of a Preliminary Economic Assessment ("PEA") for its 100% owned F2 Gold System, part of its Phoenix Gold Project located in the heart of the Red Lake, Ontario gold district. The PEA was prepared by AMC Mining Consultants (Canada) Ltd. ("AMC") with metallurgical sections prepared by Soutex Inc. ("Soutex") both of which are independent of the Company.

Silver Quest Resources Ltd. has entered into an agreement with a syndicate led by Paradigm Capital Inc. and including Stonecap Securities Inc. and Scotia Capital Inc. in respect of a private placement financing to be undertaken on a best efforts basis for gross proceeds of up to C$8 million. In addition, the company will complete a non-brokered private placement of units for gross proceeds of up to C$2 million.

Yukon-Nevada Gold Corp. announces that proven and probable reserves at its 100% owned Jerritt Canyon operating gold mine in Elko County, Nevada, estimated as of January 1, 2011, is 717,000 ounces of gold at an average grade of 0.164 ounces of gold per ton (opt) or 5.62 grams of gold per tonne (gpt).

CALGARY, June 23, 2011 /CNW/ - Ironhorse Oil & Gas Inc. ("Ironhorse" or the "Company") (TSXV: IOG) has released its financial and operating results for the period ended March 31, 2011.

Platmin Limited advises that on Thursday, 23 June, certain employees of mining contractor MCC illegally disrupted operations at the Pilanesburg Platinum Mine. These disruptions comprised intimidation of supervisors, illegal industrial action and damage to property and equipment. The South African Police Services was called in to safeguard employees, prevent further damage and stabilize the situation.

Northgate Minerals Corporation is pleased to provide an update on the progress of building its 100% owned Young-Davidson mine located near the town of Matachewan, in northern Ontario.

Today, Vale is pleased to announce a $100,000 gift to the Ma-Mow-We-Tak Friendship Centre in Thompson, Manitoba. This support will enable the Friendship Centre to provide enhanced programming to Aboriginal and non-Aboriginal members of the community.
The Ma-Mow-We-Tak Friendship Centre recently finished building a brand new, 20,422 square foot facility to house its various service and programs under one roof. Life skills, recreation and employment, as well as education and training are specific areas of focus for the Centre. Vale's contribution will help to outfit the new space with modern recreational and technical equipment allowing the Centre to continue delivering relevant and effective programs and services.

Capstone Mining announced the result of a National Instrument 43-101 compliant mineral resource estimate for the Wildfire/Copper Keel area at the Minto Mine in Yukon, Canada. Wildfire/Copper Keel is now recognized as a southeastwardly extension of the Area 2/118 deposit which is currently being pre-stripped in preparation for mining. The combined Area 2/118/Copper Keel/Wildfire mineral resources are now recognized as a single mineral deposit and will be referred to as the Minto South Deposit ("MSD"). The Copper Keel region of this larger deposit model is still open and exploration drilling is currently in progress with two drills. Image of Minto mine from Capstone Mining.

The investment will allow ArcelorMittal Mines Canada to increase its annual production of iron ore concentrate from 14 million tons to 24 million tons by 2013. AMMC is also evaluating increasing its production of iron ore pellets from 9.2 million tons to 18.5 million tons. The scheme represents a total investment of CAN$2.1 billion dollars that will create 8,000 jobs during construction and more than 900 permanent jobs once completed. Commenting, Peter Kukielski, Member of the Group Management Board and Head of Mining for ArcelorMittal, said “ArcelorMittal Mines Canada is a flagship mining asset for the Group, which offers considerable opportunity for expansion. We have already announced our intention to grow our iron ore production to 100 million tons by 2015 and this expansion forms an important part of that.”

Harry Winston Diamond Corporation (TSX:HW) (NYSE:HWD) (the "Company") is pleased to announce that it has entered into a business relationship with Diamond Asset Advisors AG ("DAA") who are in the process of establishing a polished diamond investment fund. The fund will be structured as a limited partnership, of up to US$250 million, offering institutional investors direct exposure to the wholesale market price of polished diamonds. Under the terms of the Company's arrangements with the fund, the Company's expert diamond team will source diamonds that have the same high quality characteristics that Harry Winston uses in its jewelry and timepieces, with a portion coming from the Company's existing inventory.