Ten years of hard work were wasted in the end; Glencore and Rio Tinto’s “century-defining mining merger” ultimately failed to materialize.

Ten years of hard work were wasted in the end; Glencore and Rio Tinto’s “century-defining mining merger” ultimately failed to materialize.

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Glencore and Rio Tinto’s century-long mining merger dream, which lasted for over a decade, has finally shattered.

According to Bloomberg, on February 5 local time, negotiations between Glencore and Rio Tinto broke down completely. Glencore insisted on holding 40% of shares in the merged company, while Rio Tinto’s executives ultimately realized extending the talks would be a waste of time and decided to end the deal.

The failure of this deal is a major setback for both parties. Glencore’s copper production has dropped by more than 40% over the past decade, and it is working hard to convince investors that its business has been transformed. Meanwhile, Rio Tinto hoped this merger would help it reduce its excessive reliance on the iron ore market.

After the deal fell through, Glencore’s ADR stock price plummeted over 6% that day, and investors began to question whether it could develop its copper business independently.

Collapse in the final 24 hours

According to Bloomberg, Rio Tinto hired Evercore led by senior UK dealmaker Simon Robey, as well as JPMorgan and Macquarie Group as advisers.

The report pointed out that Glencore brought in veteran dealmaker Michael Klein, who had previously worked with the company on its failed 2023 bid for Teck Resources.

Klein’s core task was to convey the value of Glencore’s business to Rio Tinto’s executives. Glencore founder Glasenberg, as the company’s largest shareholder, also became more actively involved as the deadline approached, partly to alleviate Rio Tinto’s concern that he was unwilling to reach a deal.

But in the final 24 hours before the deadline, things suddenly deteriorated. Rio Tinto increasingly realized that Glencore and Glasenberg were not going to make significant concessions on the 40% equity demand.

On Glencore’s side, they were frustrated by Rio Tinto tying the offer to the stock price on the day the deal was announced. Glencore believed such an arbitrary ratio did not reflect the companies’ past and future performance.

According to more than six people familiar with the matter interviewed by Bloomberg, on Thursday morning while negotiations continued, Rio Tinto internally still hoped Glencore would show a willingness to lower its asking price. Glencore CEO Nagle and Rio Tinto CEO Trott held two calls to try to break the deadlock.

But as the deadline approached, it became clear that an extension would be pointless. During the last call between Nagle and Trott, the discussion was about how to announce the collapse of the deal to investors.

According to UK rules, unless a competing bidder appears or Glencore formally requests to restart negotiations, the two parties cannot resume talks for at least six months.

Negotiation Process and Main Disagreements

Glencore CEO Gary Nagle laid the foundation for negotiations as early as last summer.

He made informal contact with Rio Tinto’s newly appointed CEO, senior executive Simon Trott. After Trott settled into his new role, the two sides formally began negotiations in December, with Rio Tinto Chairman Dom Barton also playing a leading role.

This secret negotiation ended in early January, when the Financial Times first reported that talks were underway. This triggered a countdown: according to UK acquisition rules, Rio Tinto had to make an offer, withdraw, or obtain an extension by 5 pm London time on February 5.

In the early stages, the heads of both companies were largely uninvolved. Rio Tinto’s deal team and advisers repeatedly traveled to Glencore’s Swiss headquarters for due diligence. This was a daunting task as Glencore’s business is extremely complex, spanning mines, smelters, refineries, and a vast trading and logistics business.

As due diligence progressed, both sides believed that, given the workload, an extension was likely. Due diligence found no red flags; the core sticking point was the price Rio Tinto would need to pay. The target was to make a bid before mid-February results were announced.

For mining billionaire Ivan Glasenberg, a Glencore-Rio Tinto merger was the deal he had wanted most for over a decade. The founder who turned Glencore from a commodity trader into a mining giant has tried multiple times to bring about this union.

Over the past month, this dream seemed within reach. The two sides launched merger talks for at least the fourth time, and most participants believed this time was the most serious ever. Yet in less than 24 hours, everything collapsed.

A Strategically Significant Deal

The deal had significant strategic value for both parties.

Glencore’s copper production has fallen over 40% in the past decade as it works to convince investors that its business has turned around, just as the price of this key industrial metal has soared to record highs.

Rio Tinto, which considers itself one of the industry’s shrewdest operators, hoped to unlock growth potential in Glencore’s copper asset portfolio through this deal. Without this transaction, Rio Tinto’s profit outlook remains tied to the iron ore market, which is facing both supply increases and weak demand.

The merger would have made Rio Tinto overtake BHP to become the world’s largest mining company. Glencore’s vast coal, copper, and trading arms would be combined with Rio Tinto’s giant iron ore business. For Rio Tinto, the key was that copper output would double, likely establishing it as the world’s top copper miner and add 1 million tons of future capacity.

Although previous attempts to inject Glencore’s aggressive mining and trading culture into the conservative corporate culture of Rio Tinto quickly failed, as rivals also pursue major copper acquisitions, the risk of inaction is rising and the opportunity is hard to ignore.

Market Impact and Future Speculation

Glencore’s stock fell 7%, highlighting the impact of the failed deal on company management and investors, as analysts are starting to question whether the company can develop its copper business independently.

For Rio Tinto, the continued decline in iron ore prices is a reminder of the risks of walking away from what would have been the sector's largest ever deal. The industry’s focus quickly shifted to whether a competing bidder would emerge.

RBC Capital Markets analyst Ben Davis wrote in an email report:

We have always thought BHP would be the most likely to get involved. Now BHP has a chance to make a move, but the challenge is how to explain to value-focused Australian investors what BHP can see in Glencore that Rio Tinto did not.

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