Gold Fields has made an unsolicited takeover proposal for Australian gold producer Northern Star Resources, in a deal that would have created one of the world’s largest gold mining groups.
Northern Star confirmed that it received the non-binding and conditional proposal on 14 September 2026 and has unanimously rejected it, saying the offer materially undervalues the company and its long-life gold assets.
A$38.7 billion proposal
“Gold Fields has sought to acquire one of the world’s premier gold portfolios at a price that falls well short of its fundamental value.”
Under the proposal, Gold Fields offered Northern Star shareholders 0.3125 new Gold Fields shares and A$7.25 in cash for every Northern Star share.
At the time the proposal was submitted, this implied a value of A$27.00 per Northern Star share and an equity value of approximately A$38.7 billion.
Around 73% of the proposed consideration would have been paid in Gold Fields shares, with the remaining 27% in cash. Northern Star shareholders would have owned approximately 33% of the combined company if the transaction had proceeded.
The proposal represented a 22% premium to Northern Star’s closing share price on 11 September and a 15% premium to its 30-day volume-weighted average price.
However, movements in Gold Fields’ share price subsequently reduced the implied value of the offer to about A$36.1 billion by 25 September.
Northern Star rejects the approach
Northern Star’s board said the proposal did not adequately reflect the value of its portfolio, which includes major gold operations across Western Australia and Alaska.
The company also raised concerns about the large equity component of the proposal, arguing that accepting Gold Fields shares would expose Northern Star investors to additional operational and jurisdictional risks.
Northern Star further described the timing of the approach as opportunistic, pointing to upcoming developments including the commissioning and ramp-up of its Fimiston Mill and the arrival of incoming Managing Director and CEO Suresh Vadnagra.
Northern Star informed Gold Fields on 25 September that it did not consider further discussions appropriate in relation to the proposal.
A potential global gold heavyweight
Gold Fields had argued that combining the two businesses could create substantial scale, with the merged group producing around 4.1 million ounces of gold annually.
The company estimated potential synergies of between US$4 billion and US$5 billion, while significantly increasing its exposure to operations in Australia and North America.
The proposed transaction comes as major mining companies continue to pursue consolidation to increase production scale, secure long-life reserves and spread the rising cost of developing new mines across larger portfolios. Reuters
For Gold Fields, the approach would also have deepened its already significant presence in Australia, where the South African-headquartered miner operates several assets.
Northern Star operates three major production centres across Western Australia and Alaska and describes itself as one of the world’s leading gold producers.
For now, no transaction has been agreed, and Northern Star has rejected the proposal. Gold Fields has confirmed that its approach was non-binding, indicative and conditional.