NORTHERN STAR RESOURCES LTD — Board/Management Information 2012

May 20, 2012

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Experienced investment specialist Peter O'Connor joins Board as independent Director Appointment forms part of gold miner's strategy to grow through acquisition as well as exploration

Highlights

• Experienced director Peter O’Connor has agreed to join the Northern Star Board as an independent NonExecutive Director

Code: NST

Board of Directors

• Mr O’Connor brings a wealth of global experience in the fund management and private equity industries

• Appointment forms part of Northern Star’s strategy to grow through aggressive exploration and acquisition

• Northern Star on track to grow production from 80,000 to 200,000ozpa

• Three-pronged exploration campaign underway designed to significantly grow resources at both Paulsens and Ashburton projects

• +$80m cash war-chest means Northern Star is ideally positioned to capitalise on current share market volatility

Issued Capital

Northern Star Resources (ASX: NST) is pleased to announce that global investment specialist Peter O'Connor has joined the Board as an independent Non-Executive Director, strengthening the Company's credentials as it pursues growth through increased production, exploration and acquisition.

Mr O’Connor has extensive global experience in the funds management industry, both public and private companies in developed and emerging economies.

He was a co-founder, director and deputy chairman of FundQuest UK Ltd which had €50 billion of assets under management or advice from 1998-2008 and deputy chairman from 2008-2010.

Projects Commodities

In addition he has held a number of senior public company directorships, including some listed in the UK, Canada and Australia in the following sectors: • Material engineering (NEO Material Technologies Inc – TSX Listed)

• Emerging economies (Advance Developing Markets Fund - LSE Listed)

• Palm oil (Anglo-Eastern Plantations plc – LSE Listed)

Zn, Cu, gold

• Mining exploration (Brazilian Metals Group Ltd – ASX)

Mr O'Connor, who is Northern Star's second independent Director alongside Chairman Chris Rowe, will further emphasise the Company's strong focus on disciplined capital management and shareholder returns.

ASX ANNOUNCEMENT 21 MAY 2012

Northern Star Chairman Chris Rowe said the Company was delighted to have secured the services of someone of Mr O'Connor's calibre.

"His knowledge and experience in maximising shareholder returns- as both a takeover bidder and a target - will be invaluable to Northern Star as we progress our growth strategy," Mr Rowe said.

"We have more than $80 million in our war-chest, which is growing by the week, and we have a clear plan to increase production to 200,000ozpa at our two operations.

"We look forward to taking full advantage of Mr O'Connor's experience in the investment and corporate arenas as we embark on our next chapter of growth."

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Chris Rowe

Non-Executive Chairman

Level 1, 1 Puccini Court, Stirling WA 6021 Tel: +6 8 6188 2100 Fax: +6 8 6188 2111

Email: info@nsrltd.com Website: www.nsrltd.com