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Will Biden force China into a green energy investment race?

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Newly inaugurated US President Joe Biden has hit the ground running after only a few days in office, with ambitious plans unveiled and a score of executive orders signed reversing much of the Trump administration’s environmental and energy regulations.

The 78-year-old president is also poised to make good on his campaign pledge to lay the groundwork for the country’s most aggressive climate change agenda in history, rivalling and surpassing even that of the Obama administration.

While it remains to be seen if he will have enough bi-partisan support to push through all of his energy initiatives, especially the so-called Green Deal, there is no doubt that the US, currently the world’s largest crude oil producer and third largest liquefied natural gas (LNG) producer, is about to see abrupt changes that will forever change the country’s energy landscape.

Biden has already set in motion the process to have the US re-join the 2015 Paris Climate Accord that Trump pulled out off.

He has also issued an executive order to effectively kill the Keystone XL pipeline project designed to carry crude oil from tar sands in Canada’s Alberta province, as well as halting oil and gas leasing in Alaska’s Arctic National Wildlife Refuge – moves that have already set the US oil and gas sector on edge.

However, even before Biden took office, the US was leading China in total overseas green energy project financing. For fiscal year 2020, the US spent some US bn on climate financing to support low-carbon development in developing countries, a Brookings Institute report revealed two weeks ago.

China, the world’s top oil and natural gas user, and by far its largest greenhouse (GHG) gas emitter, is still largely financing overseas oil and gas deals in developing countries.

PROJECT INVESTOR

China, also the largest global energy project investor, financed a total of US$196.7 bn in overseas energy sectors between 2007 and 2016, the Brookings report added.

Over that time period, energy loans issued by China Development Bank (CDB) and Chinese Export-Import Bank (EXIM) amounted to as much as all the energy finance of major Western-backed multi-lateral development banks combined.

Even more troubling from a carbon footprint perspective, of all CDB and EXIM globally financed energy projects, fossil fuel projects received around 75% of the total credits.

Renewable energy at home under the Biden administration, for its part, is expected to deliver around 70% of the new generation capacity built this year, according to a new analysis from the US Energy Information Administration (EIA).

Expect that greener footprint to continue overseas, including joining a move already underway in Europe to not only move away from dirtier burning coal-fired power plants, but to even no longer finance LNG projects needed for both industrial and power demand usage.

PRO-GREEN PIVOT

The Catch-22 for Biden is that a pro-green pivot including hitting the US LNG sector would create headwinds, not to mention fierce partisan bickering, with the US vying with both Qatar and Australia for the top two LNG production slots.

Waiting in the wings are a host of other producers, including an ambitious Russia which aims to also compete for one of the top LNG import slots and capture as much Asia-Pacific market share as possible, including China the world’s second largest LNG importer.

China seems to have no greener build-out plans for its overseas energy infrastructure investment strategy. However, to its credit, it has put more money in both domestic solar and wind projects in recent years, but given the country’s enormous population and its massive energy demand, more needs to be done.

This includes both at home and abroad to help China reach what can still be called an overly ambitious objective set by Chinese President Xi Jinping in September before a viral UN audience to make China carbon neutral before 2060.

TIT FOR TAT

Given the pressure that Xi has now put not only on himself and his own legacy, but on China’s global reputation by his carbon neutral pledge, along with Beijing’s growing habit of trying to match the US tit for tat on the global stage, Beijing could be positioning itself to launch another green energy initiative.

However, it seems that Beijing will wait until Biden more completely unveils his green plan before it formulates or claims to advance any new greener policy change with accompanying media fanfare.

Boston University’s Global Development Policy Center said in a November report that 777 power plants in 83 different countries received funding from Chinese banks and entities. That total includes plants that are operational, under construction and in planning, and together represents 186.5 gigawatts (GW) of generation capacity.

COAL-FIRED

Coal-fired plants form the largest share of these investments by capacity, at over 74 GW, or about 40% of the capacity tracked.

However, the type of power projects financed by China may be finally shifting, the report added. Of the projects that are under construction or planned from November 2020 until 2033, wind and solar represent around 12% of total capacity, with the share of hydropower higher in future capacity (33%) than for currently operating plants (27%).

But, unfortunately for both China and the world, the distribution of these future projects is still far too heavily centered on fossil-based generation to be compatible with global climate needs and objectives.

ATF

Government Seeks To List Biggest Mining Company

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ZIMBABWE, banking on mining to end two decades of economic stagnation, plans to list the company in which it has placed state mining assets to raise cash to meet government obligations, the nation’s finance minister said.

Late last year, the government created Kuvimba Mining House Ltd., in which the state pension fund and sovereign wealth fund hold 65%, to house its holdings in platinum, gold and nickel. It intends to use revenue from the company to meet a laundry list of requirements ranging from compensating White farmers for infrastructure on farms that were seized two decades ago to improving pensions.

“In the next two years, it will be a highly profitable group,” Finance Minister Mthuli Ncube said in an interview last week. “When we eventually list, government will offload some of its shareholding.”

The creation of Kuvimba, which means trust in the Shona language, is the latest attempt by the government to kick-start its mining industry. While companies have been deterred by local ownership requirements and a frequently changing currency regime, investors from Russia, Cyprus and Nigeria are now exploring digging platinum mines in Zimbabwe, which has the world’s third-biggest reserves of the metal.

‘Hard Currency’

In addition to partnering Russian investors in a platinum venture, Kuvimba plans to rehabilitate aging mines and develop new ones. The company will likely be listed on a dollar-denominated stock exchange that was established in the resort town of Victoria Falls last year, as well as another “hard currency” exchange, the minister said.

The rest of the company is owned by a consortium headed by David Brown, the former chief executive officer of South Africa’s Impala Platinum Holdings Ltd., he said, without giving details about the arrangement.

“We are looking for international skills, skills with a track record and he has a track record,” Ncube said.

Money from Kuvimba will also be used to back entrepreneurs, compensate people who lost the value of their bank deposits when the local currency crashed, bolster funding for veterans of the 1970s liberation war and provide seed capital for a new government worker pension fund, he said.

Zimbabwe’s initial refusal to compensate White farmers was an issue that’s soured Zimbabwe’s relationship with multilateral lenders and the west. Now the country plans to appoint advisers to help it raise the $3.5 billion it has agreed to pay.

With Kuvimba “the government has put something on the table, it has skin in the game,” Ncube said.

“Everything now hinges on concluding the appointment of the adviser and then the work of fund raising will begin in earnest.”

 

Bloomberg News

‘Green hydrogen’ hailed as a way to clean up the steel industry

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(ATF) One of Australia’s richest men, iron ore magnate Andrew Forrest, is urging government leaders to develop “green” steel-making facilities. The billionaire from Perth says he aims to begin work on a pilot plant later this year to capitalize on the country’s vast iron ore reserves and powered by a new form of energy that is emissions-free and has the potential to replace coal: green hydrogen.

Forrest is the founder of Fortescue Metals Group, which is generating considerable sums currently – with output reportedly worth US$940 million in December alone – by selling iron ore to China at prices that now top US$170 a tonne.

Forrest and his wife are philanthropists who have pledged to give away the bulk of their wealth to charity and support a range of worthy causes, such as education, indigenous Australians, the fight against slavery, and now, the fight against climate change.

The mining boss’ latest endeavour has vast money-making potential but his focus is more on cleaning up the ‘dirty business’ he has made his fortune from – by eliminating emissions caused by the production of steel and combating global warming.

“The green hydrogen market could generate revenues – at the very least – of $US12 trillion (A$15 trillion) by 2050, bigger than any industry we have,” he said in a lecture that was shown on national television on Saturday.

“And Australia, with characteristic luck, is sitting on everything it needs to be the world leader – but only if it acts fast.”

The steel-making industry involves heating iron ore with coking coal in blast furnaces at very high temperatures. This sector is a significant contributor to global warming, reportedly responsible for 8% of global emissions.

Forrest wants to eliminate those emissions. He says companies producing steel can use hydrogen in a much better process, because it burns cleanly and emits only water.

“Green hydrogen” is the term for the process in which hydrogen is generated via renewable energy, as it is emissions-free.

“You replace coal in the furnace with our old friend, green hydrogen. You get steel – but instead of emitting vast clouds of CO2, you produce nothing more than water vapour,” Dr Forrest said.

But the technology is generally not used in steel making because of the costs involved, and experts say it could take years before the process is economically feasible.

‘Scrap the blast furnace’

However, Forrest wants his company, Fortescue, to try more “radical” methods – “scrap the blast furnace and just zap the iron ore with renewable electricity”.

“We produce over 40% of the world’s iron ore. And our potential green energy and hydrogen resources are immeasurable,” he said.

“If Australia were to capture just 10% of the world’s steel market, we could generate well over 40,000 jobs – more than what’s required to replace every job in the coal industry. Not any old jobs, but similar jobs – construction workers, mechanics, electricians, engineers – all of the sectors that’ll be hit when coal is phased out.”

Energy experts are unsure if hydrogen can replace coal in the steel-making process but they have said it is feasible, particularly for someone like Forrest, given his deep pockets.

Hydrogen is abundant, cheap and clean burning, but it is reportedly difficult to transport – it may need to be converted to ammonia, then converted back into hydrogen at the destination where it will be used. It can make metal brittle and is also a lot more explosive than petrol. However, solutions to these issues are the subject of intense research currently.

Many shades of hydrogen

There are, in fact, many different shades of hydrogen, but Forrest appears to have timed his venture well, with the new US President Joe Biden keen to boost clean energy and the European Union scaling up renewable hydrogen projects. Meanwhile, the biggest countries in Asia are all anxious to reduce pollution and develop renewable sources of power.

Tim Buckley, an energy market analyst from the Institute for Energy Economics and Financial Analysis (IEFA), told the ABC it was estimated that the price of green hydrogen will drop 70% over the coming decade in countries with access to cheap renewable power.

“Where green hydrogen is almost inevitably going to work is where green energy is going to be almost free,” he said. “Places like Rajasthan in India or the Pilbara in Australia.”

And the Pilbara, of course, if where Forrest’s Christmas Creek iron ore mine is located, along with many other rust-coloured mountains, some of them up to 95% iron ore.

Currently, the Australian government is headed by a prime minister, Scott Morrison, who has long been an unabashed fan of coal. So, it is no surprise to hear that ‘ScoMo’ and his much-criticized advisers are cool on ‘green hydrogen’.

But it’s early days and it might take braver leaders to make this new source of energy happen.

Forrest has met Xi Jinping and is sometimes hailed as a friend of China. Maybe he will find backers more receptive to this sort of venture among the CCP in Beijing than Down Under. He plans to travel there soon.

 

ATF

Rehabilitation of Kariba on course

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WORK on the US$294 million Kariba Dam Rehabilitation Project is well on course with the Zambezi River Authority (ZRA) saying plunge pool reshaping is now 60 percent complete.

The authority, which is jointly owned by Zimbabwe and Zambia expressed satisfaction over the work so far covered ahead of the project’s 2024 completion deadline.

The rehabilitation project, which commenced in 2017, comprises the reshaping of the plunge pool and the refurbishment of the spillway gates.

According to local media ZRA chief executive officer Engineer Munyaradzi Munodawafa, highlighted that works at the project site are continuing in strict adherence to World Health Organisation covid-19 guidelines and the health authorities in the two contracting states.

“It is worth mentioning that the overall objective of the KDRP (Kariba Dam Rehabilitation Project) is not to seal cracks as has previously been speculated by some sections of the media, but rather to increase the lifespan of the dam wall.

“The project is on schedule while the contract implementation timeframe is 48 months from the commencement date.

“Consequently, the completion of the works will be accomplished in 2024,” he was quoted as saying.

The project is being funded by the European Union, World Bank, African Development Bank, the government of Sweden, and the ZRA on behalf of the governments of Zambia and Zimbabwe, through a combination of grants and loans.

The rehabilitation of Kariba Dam is aimed at enhancing the structural integrity of the Kariba Dam wall for efficient power generation.

Meanwhile, water levels at Lake Kariba continue to rise due to increased rainfall activity pushing the overall lake levels to 3,21 metres above the Minimum Operating Level (MOL) of 475,50m as of January 18, 2021.

“It is very encouraging to note that the lake levels, which should generally be in a decreasing trend at this time of the year have continued to record a steady rise due to increased rainfall activity on and around the lake, leading to a lake level of 478,71m with 22,45 percent live/usable storage on 18th of January 2021,” said Eng Munodawafa.

 

Business Weekly

Oil prices fall for second session

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Oil prices slipped for a second straight session on Monday as renewed COVID-19 lockdowns raised fresh concerns about global fuel demand.

Brent crude futures for March fell 15 cents, or 0.3%, to $55.26 a barrel by 0158 GMT, while US West Texas Intermediate crude for March was at $52.19 a barrel, down 8 cents, or 0.2%.

“Signs of weaker demand weighed on the market,” ANZ analysts said, pointing to lockdowns in Hong Kong, China and possibly France as COVID-19 cases rise, restricting business activity and fuel consumption.

China reported a climb in new COVID-19 cases on Monday, casting a pall over demand prospects in the world’s largest energy consumer, the main pillar of strength for global oil consumption.

Last Friday prices came under further pressure after data from the US Energy Information Administration showed US crude inventories surprisingly rose by 4.4 million barrels in the week to January 15, versus expectations for a draw of 1.2 million barrels.

The number of oil and natural gas rigs added by US energy firms rose for a ninth week in a row in the week to January. 22, but are still 52% below this time last year, data from Baker Hughes showed.

Some support for prices has come in recent weeks from additional production cuts from the world’s top exporter, Saudi Arabia. But investors are watching for a resumption of talks between the United States and Iran on a nuclear accord – which could see Washington lifting sanctions on Tehran’s oil exports, boosting supply.

Iran’s oil minister said on Friday the country’s oil exports have climbed in recent months and its sales of petroleum products to foreign buyers reached record highs despite US sanctions.

On Sunday, Indonesia said its coast guard had seized the Iranian-flagged MT Horse and the Panamanian-flagged MT Freya vessels over suspected illegal fuel transfers off the country’s waters_Reuters

key lithium mining projects around the world

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Positive project progressions in UK and EU lithium development will bode well for their respective battery supply chains and mission to reduce dependence on Chinese critical raw materials, market analyst Fitch Solutions asserts in its latest industry report.

The race to secure strategic materials for the green and digital economy remains a key theme for mining and metals in 2021, Fitch emphasizes.

Primary importing economies, such as the EU and the US have increasingly implemented policies to secure critical minerals sourcing and diversify away from China, following a multi-pronged approach. Domestic lithium extraction progress is needed to advance diversification of the battery value supply chain, Fitch asserts.

Zero-carbon lithium makes strides in EU

The EU offers the most promising, near-term development of lithium extraction with several projects in its pipeline likely beginning production around 2023, Fitch says. The European Commission added lithium to its list of critical raw materials for the first time in 2020, signifying its shift to the forefront of attention.

Also this month, Vulcan Resources released a pre-feasibility study for its much-anticipated Zero-Carbon lithium project in Germany, reporting its lithium resources to be the largest in Europe.

The company has pioneered a lithium extraction technique using geothermal power which it claims to emit no carbon dioxide (CO2), matching the EU stringent climate agenda, Fitch reports. The project is expected to produce enough lithium for 1mn EV batteries per annum, with possible production beginning in 2024, strengthening the EU’s capability to supply its domestic EV fleet.

Recent investment in Savannah Resources’ Mina do Barroso lithium project in Portugal will advance the project timeline by helping finance the definitive feasibility study, Fitch says. In January, Savannah reached a $6.4 million investment agreement with Galp Energia which will enable Galp to acquire a 10% maximum stake in Mina do Barroso.

Portugal is currently Europe’s largest lithium producer, accounting for 1.6% of global production in 2019, however Portuguese lithium is not marketed to the auto sector, but instead ceramics and glassware, Fitch points out. While Savannah Resources CEO David Archer says the lithium oxide at Mina do Barroso will be well-suited for implementation in EV batteries, initial lithium oxide spodumene will be exported to China.

Bacanora Lithium sells 50% of German project to Erris
The Zinnwald lithium project is located in the heart of Europe’s chemical and car industries, about 35km from Dresden (Image courtesy of Deutsche Lithium GmbH .)

Other key lithium projects in the development pipeline in the EU include CEZ Group and European Metals’ Cinovec project in the Czech Republic. European Metals announced that it has entered into a support and financial agreement with EIT InnoEnergy, the innovation engine of the European Battery Alliance initiated by the European Commission. European Metals said this partnership will facilitate the accelerated construction financing and commercialization of the largest hard rock lithium deposit in Europe.

In Austria, European Lithium’s Wolfsberg project is making progress, and operations could start around 2023Keliber Oy’s eponymous project in Finland could also begin operations in 2023, as could Erris Resources and SolarWorld’s Zinnwald project in Germany. Infinity Lithium’s San Jose lithium project in Spain is making progress and could start operations around 2024-25 as it received in December a key exploration permit required to progress towards an exploitation concession.

Lithium Australia’s Sadisdorf project in Germany is on hold. The company did not renew the Sadisdorf license after it ran full term, relinquished the 133-square kilometre Eichight exploration license, and is yet to make a decision on the future of the Hegelshöhe license as covid-19 restrictions have limited Lithium Australia’s acitivities in the country.

Exore Resources and Preseus Resources’ Sepeda project in Portugal has made no recent progress.

Fitch emphasizes China’s maintained dominance in downstream activities will prove much more difficult for Europe to overcome.

Thacker Pass approval in US

Lithium Americas shares up on Thacker Pass approval
The Thacker Pass lithium mine is host to the largest known lithium resource in the US. Image from Lithium Americas.

On January 15, the US Bureau of Land Management issued the Record of Decision for Lithium Americas Corp’s Thacker Pass lithium project, signaling a successful leap in the US reshoring of lithium extraction.

The project, located in Humboldt County, Nevada, is the largest known lithium resource in the country with 6mnt of lithium carbonate equivalent (LCE). According to Lithium Americas, US battery production capacity will require more than 250kt of LCE by 2030, with Thacker Pass well-positioned to contribute at a competitive cost of $4,088/tonne of lithium. Thacker Pass is expected to begin producing by 2023, making it one of the most advance-staged lithium developments in the US.

Meanwhile, Albemarle, owner of the only producing lithium mine in the US, Silver Peak, announced in January 2021 that it plans to double production capacity by 2025.

US homegrown lithium developments well-positioned near Tesla battery factory

UK needs more domestic investment

The recent successful achievement of lithium carbonate production in the United Kingdom will boost the country’s potential to provide for its domestic supply chain in the longer term, Fitch forecasts. On January 18, Li4UK (Securing a Domestic Lithium Supply Chain for the UK) reported positive lithium production from two projects within the UK, including Cornish Lithium (CLL)’s Trelavour project in Cornwall.

Li4UK is a project commissioned by the UK government to evaluate the viability of producing battery-grade lithium from domestic sources. The initiative was carried out by a consortium that includes Wardell Armstrong International (WAI), The Natural History Museum (NHM) and CLL. Cornish Lithium is also trialing a pilot plant using a zero-carbon, direct lithium extraction technology (DLE), similar to Vulcan Resources in Germany.

Fitch‘s autos team forecasts EV sales in the UK to surpass 296,000 units in 2021, representing y-o-y growth of 70.6%, and placing the UK as the third largest European EV market by sales volume.

Australia still dominates

Australia will maintain its position as the number one global lithium producer in the short term, underpinned by strong government support and a robust project pipeline, Fitch asserts. According to the USGS, Australia accounted for 54.4% of global lithium production in 2019, more than double the output of the world’s second-largest producer, Chile.

Core Lithium’s Finniss lithium project remains on track for targeted construction in H221 and commercial production in 2022. Located in the Northern Territory, it is expected to produce 175kt of high-quality lithium spodumene concentrate annually.

Core Lithium’s largest offtake partner, Yahua Industrial Group, has signed a supply agreement with Tesla to provide the auto manufacturer lithium hydroxide for battery use, sustaining demand for Australian lithium.

Other significant domestic lithium projects underway include Wesfarmer’s Mount Holland project and Liontown Resources’ Kathleen Valley project. The Mount Holland project is expected to produce 45kt of battery-grade lithium hydroxide per year (post ramp-up), and the firm plans to reach an investment decision during the first quarter of 2021, Fitch says.

In January, Liontown Resources reportedly proceeded to the next stage of project development, with a definitive feasibility study (DFS) for Kathleen Valley scheduled to be complete by Q42021. The project has an annual expected production of 295kt of lithium oxide spodumene concentrate_Mining.com

TIMELINE: The battle for Simandou

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Simandou in Guinea is home to the world’s richest untapped deposits of iron ore but legal wrangling, alleged corruption and the difficulty of access to the mountain region mean it has yet to be developed.

On Friday, a Swiss criminal court found Israeli businessman Beny Steinmetz guilty of corruption and sentenced him to five years in jail over a mining deal his company secured for the Simandou project. Steinmetz has said he will appeal the verdict.
The following is a chronology outlining the history of the deposit so far.

1997 – Rio Tinto granted first exploration licence to develop blocks 1,2,3, and 4 in the Simandou mountains, a 110-kilometre-long range, 550 kilometres south of Guinea’s capital Conakry.

2006 – BSGR granted exploration permits in blocks adjoining Rio concessions.

July 2008 – President Lansana Conté strips Rio of rights to half the project (blocks 1 and 2) in a presidential decree. He later awards it to BSGR.

Rio Tinto questions the legality of the actions. In answer to Guinea’s complaint that it was moving too slowly, Rio said in a statement at the time that the project was a very large, complex undertaking.

April 2010 – BSGR signs a framework agreement to sell 51% of its Guinean assets to Brazil’s Vale for $2.5 billion.

October 2012 – Vale says it is putting its Simandou project on hold, blaming falling iron ore prices. In the same month, the Guinean mining committee writes to BSGR detailing bribery allegations. Extracts of the letter have been published in legal filings.

January 2013 – U.S. grand jury opens investigation into potential breaches of the Foreign Corrupt Practices Act relating to BSGR practices in Guinea.

The probe concludes with Frédéric Cilins, a French businessman, pleading guilty to one count of obstructing a criminal investigation. He was sentenced to 24 months in jail in July 2014. He served 12 months. BSGR has stated repeatedly that it had nothing to do with Cilins and his “alleged actions”.

April 2014 – Guinean government announces it is stripping BSGR of its mining rights after a government inquiry concludes it won them through bribery.

Rio Tinto files a U.S. lawsuit against Vale, Beny Steinmetz and BSGR accusing them of conspiring to misappropriate its mining rights in the Simandou region.

The United States District Court of the Southern District of New York later dismisses the complaint on the grounds Rio had waited too long to file it. Rio said the judge’s decision had focused on a narrow point of law, not the merits of the case. Vale, Steinmetz and BSGR had all denied any wrongdoing. They repeated those denials when contacted by Reuters this week.

April 2017 – BSGR files a lawsuit in the U.S District Court in the Southern District of New York accusing financier George Soros of manipulating the government of Guinea and elected officials to strip BSGR of mining contacts. The suit has yet to be resolved. A statement from George Soros and Open Society Foundations said the claim is “entirely false”.

March 2018 – BSGR announces it has voluntarily entered administration to protect its assets because of the legal action it faces.

February 2019 – BSGR says it will walk away from the Simandou project as part of a settlement with the Guinean government, in which both parties agreed to drop outstanding legal action.

(By Barbara Lewis and Marta Nogueira; Editing by Carmel Crimmins) Reuters

Another fatal shaft collapse in Bindura

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Reports reaching Mining Zimbabwe say some artisanal miners have been trapped in a shaft at Gatawa Farm in Bindura.
The farm belongs to Hon Mashonganyika. One is reported dead and two injured. It has not yet been established how many are trapped.
Images in Mining Zimbabwe possession are too graphic to post.
This is a developing story more to follow…

11 of 22 Chinese miners trapped for over two weeks in gold mine rescued

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Eleven miners who were trapped in a gold mine for more than two weeks in eastern China have been rescued, Chinese state media reported.

Authorities have been racing to dig out 22 people trapped underground in the city of Qixia, Shandong Province, since an explosion blocked their exit on January 10.
The first miner was rescued on Sunday morning at about 11:13 a.m. local time, and was in “extremely weak condition,” according to state-run news wire Xinhua. State broadcaster CCTV said he was sent to a hospital.
The next 10 were lifted from a deeper section of the mine. At least one of them was injured, according to CCTV, but it is not clear how seriously.
One miner is believed to be dead, according to state media.
Authorities had previously said 10 people who were stuck in the mine’s chamber 600 meters (1,969 feet) underground were in contact with the outside world after rescue workers drilled a channel into a section the mine and installed a telephone line, according to Xinhua. It is not yet clear if those 10 are among those who have been rescued.
Efforts have been underway to reach the workers since the blast occurred about 240 meters (800 feet) from the mine’s entrance, but Chinese officials had said Thursday it could take 15 days to drill through 70 tons of debris trapping many of the miners.
Food, medical supplies, blankets, and batches of nutrient solution have been passed down a shaft to the 10 workers who have been located. They are in good physical and psychological condition, Xinhua reported.
According to state media, rescue teams are hoping to pull the miners out through a 711-millimetre (28-inch) diameter passage. By noon Thursday, rescuers had drilled 18 meters (59 feet) into the mineshaft but heavy debris could slow efforts.
Concern has been growing for the uncontacted miners. Some of the workers in the chamber are trying to help rescuers locate their missing colleagues by using laser pointers and loudspeakers, but they have received no response, Xinhua reported.
Rescuers have also drilled smaller channels into other sections of the mine and are lowering nutrient solutions and other means to detect breathing or movement, but no signs of life have been encountered.
Rescue workers are reported to have first heard knocking sounds from those trapped on January 17, followed by pulling on iron ropes. On Monday, miners were able to get a note to rescuers. Xinhua quoted the note as saying: “We are heavily exhausted and in urgent need of stomach medicine, painkillers, medical tape, external anti-inflammatory drugs, and three people have high blood pressure.”
Explosions and deaths are not uncommon in Chinese mines. In September, at least 16 workers in southwestern China died after they became trapped underground in a coal mine and exposed to unsafe levels of carbon monoxide, state media reported.
And in 2016, dozens of workers were confirmed dead after a gas explosion at a coal mine in the city of Chongqing.
Source: CNN

Researchers use niobium, molybdenum to find heat-tolerant alloys for aircraft

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Researchers at Kyoto University in Japan have measured what happens at the micro-level when pressure is applied on tiny samples of metals containing niobium silicide, which are promising materials that can withstand high temperatures and improve efficiency of gas turbines in power plants and aircraft.

In a paper published in the journal Science and Technology of Advanced Materials, the scientists report their results demonstrate the cutting edge of research into plastic deformation behaviour in crystalline materials.

Plastic deformation describes the distortion that occurs at the atomic level when a sustained force is applied to a crystal. By using a new approach to systematically measure plastic deformation in crystals, the team led by Kyosuke Kishida has discovered that the process shows promise for use in high-temperature gas turbines.

PLASTIC DEFORMATION DESCRIBES THE DISTORTION THAT OCCURS AT THE ATOMIC LEVEL WHEN A SUSTAINED FORCE IS APPLIED TO A CRYSTAL

In detail, the team measured plastic deformation in a niobium silicide called alpha-Nb5Si3. Tiny ‘micropillars’ of these crystals were exposed to very small amounts of stress using a machine with a flat-punch indenter at its end.

The stress was applied to different faces of the sample to determine where and how plastic deformation occurs within the crystal. By using scanning electron microscopy on the samples before and after the test, they were able to detect the planes and directions in which deformation occurred.

This was followed by simulation studies based on theoretical calculations to further understand what was happening at the atomic level. Finally, the team compared the results with those of a boron-containing molybdenum silicide (Mo5SiB2) they had previously examined.

“We found that instantaneous failure occurs rather easily in alpha-Nb5Si3, which is in marked contrast to Mo5SiB2,” Kishida said in a media statement.

This could mean alpha-Nb5Si3 is at a disadvantage compared to Mo5SiB2 for use as a strengthening component in metal-based alloys. Kishida and his team think, however, that this material’s inherent brittleness could be improved by adding other alloying elements.

Mining.com