Australian gold miner Northern Star Resources has rejected an unsolicited takeover proposal from South Africa-based Gold Fields for $27.2bn (A$38.7bn).
Received on 14 September 2026, the proposal would have resulted in the creation of the world’s second-largest gold miner by total production.
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The default consideration was 0.3125 new Gold Fields shares, issued as CHESS Depositary Interests for Australian holders, plus A$7.25 in cash for each Northern Star share.
The terms implied A$27 per Northern Star share on 11 September, valuing the target’s equity at A$38.7bn and representing premiums of 22% to its closing price and 15% to its 30-day volume-weighted average price.
However, by 25 September, the offer’s implied value had declined to A$25.19 per share, a 14% premium to Northern Star’s then share price. The offer’s value has fluctuated in line with Gold Fields’ share movements.
Northern Star’s board, after consulting with financial and legal advisers, unanimously rejected the approach.
The board said the bid materially undervalued Northern Star’s portfolio of long-life gold assets in what it described as low-risk locations, and argued the offer exposed its shareholders to greater jurisdictional and operational risk.
The company also emphasised that the offer arrived ahead of significant operational milestones including the ramp-up of the Fimiston Mill and the appointment of a new managing director and CEO.
Northern Star chairman Michael Chaney said: “Gold Fields has sought to acquire one of the world’s premier gold portfolios at a price that falls well short of what the Board considers to be its fundamental value and at a highly opportunistic time.
“Furthermore, Gold Fields has asked our shareholders to take nearly three-quarters of the consideration in Gold Fields stock, which carries a meaningfully higher jurisdictional risk profile than the exposure they hold today.”
Gold Fields responded that it had engaged in discussions with Northern Star over the past six months and viewed a merger as a strategic fit, given overlap in Western Australian operations.
Gold Fields estimated that combining the businesses could generate $4bn–5bn in synergies and yield annual production of 4.1 million ounces (moz) of gold, with 80% coming from Australia, North America and Chile.
Under the terms, Northern Star shareholders would retain a 33% stake in the combined entity, which would also seek a secondary Australian Securities Exchange listing.
