Trott, 50, takes on the role after Rio sought a leader with more mining experience to focus on portfolio growth. Rio has many expansions in the pipeline, including a $13 billion splurge on iron ore, a range of new lithium projects, and plans to keep growing in copper.
The potential development could see up to 1 million tonnes per annum (mtpa) of primary aluminium smelting and 2 mtpa of alumina production
Rio Tinto will acquire the United States-based lithium producer for $5.85 per share, it said.
The two groups are in advanced talks about a co-management of mining agreement, the Puutu Kunti, Kurrama and Pinikura (PKKP) said.
Rio has been battling with a surge in production costs, while iron ore prices are on track to end 2022 at their lowest in the last three or four years, as China and Europe cut steel output amid mounting pressure from additional supply.
“The short-term outlook might look a little bit challenged,” Rio Tinto Plc Chief Executive Officer Jakob Stausholm said in an interview at Bloomberg Headquarters in New York.
Unifor issued a 72-hour strike notice on Wednesday after nearly seven weeks of unproductive talks over proposed changes to workers' retirement benefits and unresolved grievances.
Rio Tinto faced a growing investor revolt over the destruction of the sacred site in the Juukan Gorge in Western Australia's remote Pilbara region -- one of the earliest known locations inhabited by Australia's indigenous people.
The central state of Madhya Pradesh was likely to invite bids in the first week of November to explore the deposit, which is estimated to hold around 32 million carats of diamonds, a senior state government official said.
The action raises the world no.2 miner's total buybacks this year to $4 billion following announcements in February and August, as miners benefit from recovering prices and costs reduced by years of cutbacks. Investors have been pressing for greater returns.
There is no suggestion that the officials or consultant acted illegally. But emails detailing payments, which involve two former Rio Tinto chief executives, are a blow to a group that has campaigned for transparency even in complex countries and in projects as tough as Guinea's USD 20 billion Simandou mine.
The Bunder deposit, about 500 km (300 miles) southeast of New Delhi and discovered by Rio Tinto in 2004, is estimated to contain about 27.4 million carats of diamonds potentially worth billions of dollars.
The world's third-largest coal importer wants private companies to contribute about a third of an annual production target of 1.5 billion tonnes by 2020, but the hold up in opening the sector to non-government companies for the first time in over 40 years may mean India will fall well short of that mark.
"2016 should end much better than it has started off for investors, ultimately providing okay investment returns, but expect a continued volatile ride," Shane Oliver, head of investment strategy at AMP Capital, said in a note Thursday.
The Shanghai composite tumbled 168 points, or 5.29 percent, to 3,017.99, while the Shenzhen composite plunged 130.61 points, or 6.6 percent, to close at 1,848
The move comes in the backdrop of government's plans to encourage mines exploration in the country, which has so far not been able to attract private participation on account of lack of policy bottlenecks as well as favourable business opportunities.
Stocks that are in Limelight: Bharat Heavy Electricals, Vedanta Resources, Glencore, Anglo American, KAZ Mineral, BHP Billiton, Rio Tinto, United Spirits, Larsen and Toubro, Visa Steel, Sterlite Technologies, Concord Drugs, Tide Water Oil, Maruti Suzuki India, Motherson Sumi Systems.
Carroll, who sits on the board of oil major BP, will join as the chairwoman of Vedanta Resources Holdings Ltd, in an advisory role.
On challenges, the report said increasing regulatory pressure, uncertainty on mine allotments after passing of the MMDR Amendment Act, 2015, along with increased competition and growing threat from imports of iron ore are some of the issues that may impact the company's performance.
The topic was discussed in a meeting held yesterday between Steel and Mines Minister Narendra Singh Tomar and his Australian counterpart, Minister for Industry, Science and Resources Ian Macfarlane, an official statement said on Thursday.
Benchmark API2 2016 coal futures last settled at USD 52.85 a tonne, a level not seen since November 2003
Mining baron Anil Agarwal-run Vedanta Ltd on Friday said itsmerger with cash-rich Cairn India is not for refinancing its Rs 77,752 crore gross debt, but to simplify the group's business structure.
Australian Trade and Investment Minister Andrew Robb, who is here for a three-day visit, will also attend the Australia-India CEO Forum. The co-chairs of the forum are Rio Tinto CEO Sam Walsh and Adani Group Chairman Gautam Adani.
IRONORE-CITIGROUP-FORECAST:Citigroup cuts long-term iron ore forecast to $55 as demand shrinks
The abrupt departure over the weekend of Martens, a former Ford executive who took over the role in 2009, comes as Novelis has successfully positioned itself as a key supplier of flat rolled aluminum products to the automotive industry, where demand for the lighter metal is burgeoning as automakers seek to design more energy-efficient vehicles.