Rio Tinto looming talks with Mongolia to decide Oyu Tolgoi’s fate

Shaft 2 and above-ground infrastructure to support underground development at Oyu Tolgoi. Credit: Turquoise Hill Resources.

The next three to six months will be crucial to the future of the vast Oyu Tolgoi copper-gold mine in Mongolia, as the companies behind the operation engage in talks to find a way to improve the government’s financial benefits from an ongoing underground expansion.

Based on a definitive estimate for the development of the new mine level, announced by Rio Tinto (LSE: RIO; NYSE: RIO; ASX: RIO) last month, the underground section of Oyu Tolgoi will begin production in October 2022. The project will cost US$6.75 billion, about US$1.4 billion higher than its original estimate, as established in the 2015 agreement.

That deal is commonly known in Mongolia as the “Dubai agreement”, because the nation’s then Prime Minister Chimediin Saikhanbileg struck it with former Rio Tinto’s boss Jean-Sebastien Jacques in a Dubai hotel, ending an impasse that had lasted close to three years.

Ulaanbaatar is not happy with the updated figures. Last week it announced that it would ask Rio Tinto and its majority-owned Turquoise Hill Resources (TSX: TRQ; NYSE: TRQ) to revisit the economic benefits the expansion will bring to the nation.

“The government of Mongolia supports the Oyu Tolgoi underground mine development, which is viewed as holding benefits to the Mongolian economy because 80% of Oyu Tolgoi’s value lies beneath the surface,” Solongoo Bayarsaikhan, Mongolia’s Deputy Chief at Cabinet Secretariat said on Thursday.

“It is calculated that Mongolia will not receive dividend payments until 2051 and will incur debts of US$22 billion. In addition, Oyu Tolgoi is estimated to pay profit taxes or corporate income taxes only in four years until 2051,” she noted.

In Bayarsaikhan’s view, the government of Mongolia may never receive a dividend from Oyu Tolgoi, in which the state has a 34% interest. This is because the billions of dollars in loans taken on to develop the existing open pit mine and the underground expansion have to be repaid before the state gets a dividend. 

Both Rio Tinto and Turquoise Hill have said they are ready to engage with local authorities, with analysts warning the looming renegotiations could cause further delays to the already deferred project.

“Any delays in obtaining approvals beyond the first half of 2021 may result in further value erosion of the project, which we expect to ramp up in October 2022,” Morgan Stanley analyst Alain Gabriel wrote this week. “A potential renegotiation of the mining agreement could result in some value leakage as the government seeks to accelerate its access to cash flows.”

BMO Jackie Przybylowski said the government’s claims highlight its legitimate concerns over the distribution of cash flows from the mine.

“Although we don’t model any change to the structure of the investment agreement, we do believe that a change is possible, which would improve the structure for all sides,” she wrote, adding that BMO did not anticipate a disruption to production or ownership. 

The best scenario for everyone involved in the mine development, which will make Oyu Tolgoi the world’s fourth-largest copper operation once completed, is uncertain.

The Mongolian Parliamentary Working Group, formed in 2019, recommended exploring possibilities for a production sharing agreement and/or replacement of the equity interest with a special royalty.

Rio Tinto and Turquoise Hill are focused on bringing the underground expansion into production. But the road continues to be full of bumps as there are many soft issues on the table.

The two companies are at odds over roles and obligations of each in securing the remaining funding. An arbitration tribunal is expected to settle the matter in the coming months.

The miners also need to extend an existing power agreement beyond March. The operation is powered by coal-fired electricity imported from neighbouring China via overhead cables.

Then there is a potential restructuring of Oyu Tolgoi’s management team, as well as the need to ratify a 2019 statement of resources and reserves and a feasibility study prepared in 2020.

All these topics need to be addressed before Rio Tinto makes a major mining decision — an undercut — in May.

All the parties involved seem sure that the project won’t be halted, though they acknowledge that further delays are possible. Oyu Tolgoi is a crucial part of Mongolia’s economy. Not only it is the country’s biggest source of foreign direct investment, it also provides thousands of well-paid jobs. Close to 94% of the workforce are Mongolian nationals.

The current negotiation environment is more favourable than in 2013, when Rio considered halting construction of the open pit mine due to Mongolian authorities demanding a greater share of profit from the mine.

The special committee looking into the cost overrun and delays is comprised of four members: two members nominated by Turquoise Hill and two members nominated by Erdenes Oyu Tolgoi (the government) with extensive financial and economic background.

There is also a presidential election coming up in June, with the two biggest parties the left-wing Mongolian People’s Party (MPP) and the centre-right Democratic Party (DP) rooting for Oyu Tolgoi.

Rio Tinto has repeatedly said the underground expansion is its most important growth project. Once completed, Oyu Tolgoi will churn out 480,000 tonnes of copper a year from 2028 to 2036.

It is understood that the miner has offered Mongolia to cut the fee it charges for managing development of Oyu Tolgoi and has already reduced the interest rate on loans provided to the project.


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