Tuesday, January 31, 2023

US HEGEMON'S ECONOMIC WAR IS STILL WAR
U.S. stops granting export licenses for China's Huawei - sources




Hi1710 BMC management chip is seen on a Kunpeng 920 chipset designed by Huawei's Hisilicon subsidiary is on display at Huawei's headquarters in Shenzhen


Mon, January 30, 2023 

By Karen Freifeld, Alexandra Alper and Stephen Nellis

(Reuters) -The Biden administration has stopped approving licenses for U.S. companies to export most items to China's Huawei, according to three people familiar with the matter.

Huawei has faced U.S. export restrictions around items for 5G and other technologies for several years, but officials in the U.S. Department of Commerce have granted licenses for some American firms to sell certain goods and technologies to the company. Qualcomm Inc in 2020 received permission to sell 4G smartphone chips to Huawei.

A Commerce Department spokesperson said officials "continually assess our policies and regulations" but do not comment on talks with specific companies. Huawei and Qualcomm declined to comment. Bloomberg and the Financial Times earlier reported the move.

One person familiar with the matter said U.S. officials are creating a new formal policy of denial for shipping items to Huawei that would include items below the 5G level, including 4G items, Wifi 6 and 7, artificial intelligence, and high-performance computing and cloud items.

Another person said the move was expected to reflect the Biden administration's tightening of policy on Huawei over the past year. Licenses for 4G chips that could not be used for 5g, which might have been approved earlier, were being denied, the person said. Toward the end of the Trump administration and early in the Biden administration, officials had still granted licenses for items specific to 4G applications.

American officials placed Huawei on a trade blacklist in 2019 restricting most U.S. suppliers from shipping goods and technology to the company unless they were granted licenses. Officials continued to tighten the controls to cut off Huawei's ability to buy or design the semiconductor chips that power most of its products.

But U.S. officials granted licenses that allowed Huawei to receive some products. For example, suppliers to Huawei got licenses worth $61 billion to sell to the telecoms equipment giant from April through November 2021.

In December, Huawei said its overall revenue was about $91.53 billion, down only slightly from 2021 when U.S. sanctions caused its sales to fall by nearly a third.

(Reporting by Chavi Mehta in Bengaluru, Stephen Nellis in San Francisco, and Alexandra Alper and Karen Freifeld in Washington; Additional reporting by David Kirton in Shenzhen; Editing by Shailesh Kuber and Stephen Coates)


University of Technology Sydney Associate Professor Zhang on tech curbs on China

Marina Yue Zhang, Associate Professor at the Australia-China Relations Institute of the University of Technology Sydney, says that imposing more tech restrictions on China is not the right strategy for the world, after sources say the Biden administration is considering a full Huawei ban. She speaks to Rishaad Salamat and David Ingles on "Bloomberg Markets Asia."

VIDEO



Japan's chip equipment makers in the dark about new China export restrictions

Mon, January 30, 2023 

TOKYO (Reuters) - Japanese makers of semiconductor manufacturing machinery and materials used to make chips said on Monday they had yet to hear from Japan's government about export restrictions that could directly or indirectly affect their business in China.

Reuters contacted 10 chip-related companies, of which five - Advantest Corp, Nikon Corp, Resonac Holdings Corp, Lasertec Corp and Shin-Etsu Chemical Co Ltd - said they were unaware of any contact from Japan's Ministry of Economy, Trade and Industry about any new restrictions reportedly agreed by Japan, the United States and the Netherlands last week to stymie rival China's technological advancement.

"As we do not know what the situation is, we cannot comment on what the impact is and what our response will be," said a spokesman for Advantest, which makes chip-testing machines and other chip-related equipment.

Past restrictions on advanced semiconductor shipments to China have not affected Japan because the country, which once dominated global chip manufacturing, now only makes around a 10th of the world's semiconductors, most of them less advanced than the chips made by the likes of Taiwan Semiconductor Manufacturing Co Ltd (TSMC) and South Korea's Samsung Electronics Co Ltd.

Japan, however, is a major supplier of machines used to make those leading-edge semiconductors that could come under restrictions following reports Washington and other governments had agreed on a deal to curb their exports to China.

"South Korea has constantly beaten Japan in semiconductors all these years, but one thing they don't have is steppers," which are used to project electronic circuits on to silicon plates, said Tokai Tokyo Research Institute analyst Masahiko Ishino. Without knowing the details of any new restrictions it is impossible to know their impact, he said.

Dutch company ASML Holding NV, a key supplier to chipmakers, said on Saturday it "understood" that progress had been made towards an agreement among several governments.

Its statement followed a Bloomberg report that the United States had secured a deal with the Netherlands and Japan.

The five other Japanese firms Reuters contacted did not respond when asked about the possible impact of tighter export rules and whether they were concerned China would retaliate. Among them was Tokyo Electron Ltd, Japan's biggest semiconductor manufacturing machinery maker.

Shares of Japanese semiconductor equipment makers were mostly flat on Monday, with Tokyo Electron up 0.68% while Advantest Corp fell 0.32%. Nikon Corp was up 0.16%, in line with the benchmark Nikkei average.

(Reporting by Tim Kelly, Mayu Sakoda, Kiyoshi Takenaka and Mariko Katsumura; Editing by Chang-Ran Kim and Christopher Cushing)


China accuses Washington of abusing export controls


Mon, January 30, 2023 

BEIJING (AP) — China’s government on Monday criticized U.S. controls on technology exports as a trade violation, after Japan and the Netherlands agreed to join Washington in limiting Beijing’s access to materials to make advanced processor chips they say can be used in weapons.

The Foreign Ministry didn’t mention the latest development but accused Washington of abusing export controls and organizing other governments to “maintain its hegemony” and contain China.

The United States is trying to block China from acquiring the most powerful processor chips and technology that would help its fledgling industry develop the ability to make them. Washington says they can be used to make weapons and to facilitate the ruling Communist Party’s surveillance and human rights abuses.

“This seriously violates market principles and international trade order,” said a ministry spokeswoman, Mao Ning. She said it “undermines the stability of global industrial and supply chains.”

A person familiar with the agreement told The Associated Press on Sunday that Japan and the Netherlands, important suppliers of technology and raw materials to make chips, agreed to join in U.S. controls.

Mao gave no indication how Beijing might respond to tighter export controls.

The Communist Party has invested billions of dollars to develop its own chip industry, but its vendors still need foreign manufacturing equipment, raw materials and other technology.

Industry experts say Chinese producers are improving but cannot make chips required for the most advanced smartphones and other products.

The Associated Press


"THEY LIKE ME THEY REALLY LIKE ME"
Brazil's Bolsonaro applies for 6-month U.S. visitor visa



 Former Brazil President Jair Bolsonaro, center, meets with supporters outside a vacation home where he is staying near Orlando, Fla., on Wednesday, Jan. 4, 2023. The capital uprising by Bolsonaro's supporters on Jan. 8, 2023 failed to overthrow Brazilian democracy and Bolsonaro flew to Florida, but millions of people in Brazil believe so strongly in Brazilian-style social conservatism that the movement will persist without its namesake, according to academics who study the Bolsonarita movement and members of the movement themselves.
 (Skyler Swisher/Orlando Sentinel via AP, File)

DAVID BILLER
Mon, January 30, 2023 

RIO DE JANEIRO (AP) — Former Brazilian President Jair Bolsonaro has filed a request for a six-month visitor visa to stay in the U.S., indicating he may have no immediate intention of returning home, where legal issues await.

The application was first reported by The Financial Times, citing Bolsonaro's immigration lawyer, Felipe Alexandre. Contacted by The Associated Press, the lawyer's firm, AG Immigration, confirmed the report.

Bolsonaro left Brazil for Florida on Dec. 30, two days before the inauguration of his leftist rival, Luiz Inácio Lula da Silva. The ceremony proceeded without incident, but a week later thousands of Bolsonaro's die-hard supporters stormed the capital and trashed the top government buildings demanding that Lula's election be overturned.

Bolsonaro is being investigated for whether he had any role in inciting that uprising. It is just one of several probes targeting the former president and that pose a legal headache upon his eventual homecoming, and which could strip him of his eligibility in future races — or worse.

For the first time in his more than three-decade political career as a lawmaker then as president, he no longer enjoys the special legal protection that requires any trial be held at the Supreme Court.

It has been widely assumed — though not confirmed — that Bolsonaro entered the U.S. on an A-1 visa reserved for sitting heads of state. If so, he would have 30 days from the end of his presidential term to either leave the U.S. or adjust his status with the Department of Homeland Security.

Meantime, the shape of his political future and his potential return to Brazil has been a matter of rumor and speculation.

Bolsonaro's calculus appears to be to distance himself from the radicals whose destruction in the capital could implicate him in the short term, with the aim of some day returning to lead the opposition, said Mario Sérgio Lima, a political analyst at Medley Advisors.

“He is giving it some time, staying away a bit from the country at a moment when he can begin to suffer legal consequences for his supporters’ attitudes,” said Lima. “I don’t think the fact of him staying away is enough. The processes will continue, but maybe he thinks he can at least avoid some sort of revenge punishment.”

Bolsonaro has been staying in a home outside Orlando, Florida, and video has shown him snapping photos with supporters in the gated community and ambling around inside a supermarket.

In the wake of the rampage in the Brazilian capital this month, a group of 46 Democratic lawmakers sent a letter to President Joe Biden demanding Bolsonaro’s visa be revoked.

“The United States must not provide shelter for him, or any authoritarian who has inspired such violence against democratic institutions,” they wrote.

Bolsonaro's son, a senator, told reporters at an event this weekend that he was not sure when his father would return to Brazil.

"It could be tomorrow, it could be in six months, he might never return. I don't know. He's relaxing,” Sen. Flávio Bolsonaro said.

Asked whether Bolsonaro has filed any request for documentation or help with visa processses, Brazil’s foreign ministry referred AP to U.S. authorities. The U.S. Citizenship and Immigration Services referred AP to the State Department, which has repeatedly declined comment to questions about Bolsonaro’s visa status in the U.S.
THE 51ST STATE
The U.S. on Israel’s far-right government: It is what it is



Ronaldo Schemidt/Pool via AP

Nahal Toosi
Mon, January 30, 2023 

President Joe Biden and his aides are making nice with Israel’s new far-right government — and they’re doing it in a highly public fashion.

The choice to engage the coalition government led by Prime Minister Benjamin “Bibi” Netanyahu was clear Monday, as Secretary of State Antony Blinken arrivedon a two-day visit to Israel and the West Bank. Blinken’s trip follows separate visits to Israel by U.S. national security adviser Jake Sullivan and CIA Director William Burns. It also comes amid a spike in violence between Palestinians and Israelis.

The visits show how, given U.S. worries about Iran, Russia’s war in Ukraine and the Palestinians, distancing the United States from Israel is not a serious option, former officials and analysts said. That’s despite the fact that the new Israeli leadership includes backers of what many critics allege are racist, homophobic and misogynistic policies.

Israel remains an important ally due to its intelligence capabilities and its historical and political resonance in the United States. And Biden’s long-term goal of shifting America’s focus toward Asia will rest in part on remaining on good terms with Israeli leaders, while encouraging their efforts to improve ties with Arab states and bring more stability to the long volatile Middle East.

“The administration will go to great lengths to avoid a confrontation with Netanyahu,” said Aaron David Miller, a former State Department official who took part in many Middle East peace talks. “It’s good policy to engage, and clearly, given the fact that the president is going to announce in the next several weeks or months his intention to seek a second term, it’s also good politics.”

The Biden administration is treading carefully in the new reality presented by Netanyahu’s far-right coalition. Make the visits, but downplay their importance. Meet with Netanyahu, but avoid his more extreme coalition partners. And hold onto the hope that diplomacy can reduce tensions.

The new Israeli government is dotted with religious zealots with antipathy toward Arabs, LGBTQ+ people and others. And as Blinken arrived, there were questions about whether some of these coalition leaders would further stoke recent violence.

On Thursday, Israeli security forces killed nine Palestinians in the West Bank in what Israel called a raid against a terrorist unit. The next day, a Palestinian gunman killed seven Israelis near a synagogue in east Jerusalem.

Blinken urged de-escalation. “It’s the responsibility of everyone to take steps to calm tensions rather than inflame them,” he said upon reaching Israel after a stop in Egypt.

Asked about the significance of the secretary of State’s visit, a U.S. official described it as unexceptional.

“Israel is an important ally with a new government very different from what came before. It’s normal for a secretary of State to make an early trip,” said the senior Biden administration official, who spoke on condition of anonymity because the topic involved sensitive diplomatic issues.

But Blinken has more than meet-and-greets to deal with on his trip.

Iran is one major example. Israel views the Islamist regime, which has called for Israel’s destruction, as an existential threat.

Over the weekend, reports emerged that suspected Israeli drones had attacked a military facility in the Iranian city of Isfahan. Details of that strike, including the type of military facility targeted and whether Washington had advance notice, remain fuzzy.

Netanyahu has long been at odds with the Biden administration on exactly how to deal with Iran. He has opposed the Iran nuclear deal, which lifted many sanctions on Iran in exchange for restrictions on its nuclear program. The Biden team tried to salvage that agreement, which the Trump administration quit in 2018, but the Iranian regime’s oppression of popular protests has put the matter on hold.

But the United States is working to strengthen the ties between Israel and a few Arab countries — some of them also at odds with Iran — through the Abraham Accords. The Biden administration hopes such “integration” — as it calls it — will provide a bulwark against Iran, whose Shiite Islamist regime has harassed its neighbors for years.

Israel’s enmity with Iran also is affecting its policy toward Russia’s war on Ukraine.

Kyiv has urged Israel to donate systems to help it fend off Russian missile and other attacks. But the Israelis want to maintain good relations with Moscow because they want to be able to strike Iranian sites in Syria, where the Kremlin holds significant sway. The issue is further complicated by Iran’s decision to supply Russia with drones that the Kremlin is using against Ukraine.

Blinken pushed Israel to do more to help the Ukrainians.

“Russia’s ongoing atrocities only underscore the importance of providing support for all of Ukraine’s needs — humanitarian, economic and security — as it bravely defends its people and its very right to exist, a topic that we also discussed today,” he said alongside Netanyahu in Jerusalem on Monday.

Blinken did not plan to meet with the more extreme members of the Netanyahu-led coalition — some of whom have views that have alarmed many Israeli Jews, especially secular ones, not to mention Israeli Arabs and Palestinians. Netanyahu has given these allies positions that include overseeing some security forces that deal with Palestinians.

U.S. officials have, however, said they will hold Netanyahu responsible for the actions of his government, noting that he’s stressed that he’s the one in charge.

But Netanyahu, who faces corruption charges, is counting on his coalition partners to help shield him from prosecution. That makes it harder for the United States to pressure him, even though he’s had experience as a prime minister and has a long friendship with Biden.

The new Israeli government Netanyahu leads also is trying to limit the powers of the Israeli judiciary — an effort that worries Washington, though it has little ability to stop it.

Blinken nodded to all of these concerns Monday, stressing that Israel and the United States had shared ideals, among them “our support for core democratic principles and institutions, including respect for human rights” and “the equal administration of justice for all.”

Administration officials also say they will keep pushing Israel to engage with the Palestinians, and the chief U.S. diplomat is supposed to meet Tuesday with Mahmoud Abbas, the Palestinian leader, in the West Bank.

But Netanyahu and his Israeli colleagues appear to have zero interest in talking about peace with the Palestinians. In fact, they are taking steps to make it harder, including by promising more allowances for settlers in the West Bank, which further undermines the possibility of a Palestinian state.

The reality is that the Palestinians themselves are ill-prepared for serious negotiations. Abbas has run the Palestinian Authority for nearly two decades, and he’s unwilling to hold an election for fear of losing to rivals such as Hamas, the militant group that controls the Gaza Strip. Many younger Palestinians are deeply disillusioned with their leaders’ corruption and ineptitude.

Although the Biden administration frequently speaks out in support of human rights for Palestinians, Biden has ruled out conditioning U.S. military aid to Israel on its treatment of the Palestinians — and there are few other levers Washington has to pull with an ally whose cooperation it needs in the Middle East.

While the Biden administration routinely says it supports a two-state solution to the Israeli-Palestinian conflict, it has “abandoned the issue in all but rhetoric,” said Khaled Elgindy, a scholar with the Middle East Institute. “Palestinians are low on the agenda.”
Scholz bid to rally Ukraine support in South America falls flat


 
"Argentina and Latin America are not planning to send weapons to Ukraine or any other conflict zone," Argentine President Alberto Fernandez said during a joint news conference in Buenos Aires with Scholz on Saturday.



Chile's President Boric and German Chancellor Scholz meet at La Moneda palace in Santiago

Sun, January 29, 2023
By Sarah Marsh and Anthony Boadle

SANTIAGO/BRASILIA (Reuters) -German Chancellor Olaf Scholz's bid this week to rally support for Ukraine in the face of Russia's invasion during his first South American tour fell flat, with Brazilian President Luiz Inacio Lula da Silva reiterating his view both parties shared blame.

Scholz has sought to project unity on Ukraine during his whistlestop three-day tour, thanking all three countries he has visited - Argentina, Chile and Brazil - for condemning Russia's invasion at the United Nations General Assembly last year.

But the fallout of the war and harsh sanctions on Russia, such as soaring food and energy prices, have hit the region particularly hard, raising questions over the West's approach. Skepticism also abounds about interventionism and sanctions given its own past.

On the final leg of his South American tour, Scholz on Monday became the first foreign leader to visit Lula since his inauguration. Europe is seeking to re-set ties with Brazil which were frosty under far-right former President Jair Bolsonaro.

In a joint news conference in Brasilia, Scholz said he was delighted by Brazil's return to the world stage. But he grew stony-faced as his fellow leftist leader expounded his views on the Ukraine war.

"I think Russia made the classic mistake of invading another country's territory, so Russia is wrong," Lula told reporters.

"But I still think that when one won't, two won't fight. You have to want peace," he said, adding that he had heard very little from either side about finding a peaceful end to the war.

Lula also said Brazil would not provide ammunition to Ukraine for German-made Gepard anti-aircraft guns, as reportedly requested by Germany.

Brazil would work with other countries to help achieve peace in Ukraine, as his country has not taken sides, he said.

China has an important role to play in peace talks, he added, which he will discuss on a planned visit to Beijing in March.

NO WEAPONS FOR UKRAINE


Earlier on Scholz's tour, designed to boost ties with the region, Argentina and Chile's leaders more clearly condemned the Russian attack but dialed back any hope for support for Ukraine's war effort.

"Argentina and Latin America are not planning to send weapons to Ukraine or any other conflict zone," Argentine President Alberto Fernandez said during a joint news conference in Buenos Aires with Scholz on Saturday.

Chilean President Gabriel Boric defended his condemnation of the invasion despite the fact "some media or opinion makers could believe it was a bad decision to get involved in the politics of other countries".

Dodging a question about whether he agreed with Fernandez on weapons, he said Chile had promised to help Ukraine rebuild after the war, for example clearing mines.

In both countries, Scholz visited memorials to the victims of their military dictatorships that he said underscored the need to fight for democracy and freedom.

"At this memorial to the many victims of the dictatorship here I cannot help but think of the young people who are being killed in Iran because they are fighting for freedom and a better life," he said in Buenos Aires.

In Brasilia, he expressed his full solidarity for Lula and Brazil at large after Bolsonaro supporters earlier this month stormed government buildings.

German government officials say it is understandable Latin American countries have diverging views on the causes of the war and how to handle it, but highlight the importance of continuing to convey the Western perspective - as Scholz has also done in Africa and Asia.

(Reporting by Sarah Marsh and Anthony Boadle; Additional reporting by Brendan O'Boyle and Riham Alkousaa; Editing by Lincoln Feast and Jonathan Oatis)
ATTENTION CYCLISTS
Breathing exhaust fumes ‘impairs human brains within two hours’

Rob Waugh
·Contributor
Mon, 30 January 2023 

Even brief exposure to exhaust fumes has rapid effects on the brain. (Getty)

Even brief exposure to air pollution has rapid and measurable impacts on the human brain, a new study has shown.

Within a matter of hours, diesel exhaust fumes seriously impairs human brain function.

The researchers at the University of British Columbia (UBC) and the University of Victoria used MRI scanners to measure the impact on brain activity.

Senior study author Dr Chris Carlsten, professor and head of respiratory medicine at UBC, said, "For many decades, scientists thought the brain may be protected from the harmful effects of air pollution.

"This study, which is the first of its kind in the world, provides fresh evidence supporting a connection between air pollution and cognition."

Read more: Melting snow in Himalayas drives growth of green sea slime visible from space

The researchers briefly exposed 25 healthy adults to diesel exhaust and filtered air at different times in a laboratory setting.

Brain activity was measured before and after each exposure using functional magnetic resonance imaging (fMRI).

The researchers analysed changes in the brain's default mode network (DMN), a set of interconnected brain regions that play an important role in memory and internal thought.

The fMRI revealed that participants had decreased functional connectivity in widespread regions of the DMN after exposure to diesel exhaust, compared to filtered air.

Dr Jodie Gawryluk, a psychology professor at the University of Victoria, said, "We know that altered functional connectivity in the DMN has been associated with reduced cognitive performance and symptoms of depression, so it's concerning to see traffic pollution interrupting these same networks.

"While more research is needed to fully understand the functional impacts of these changes, it's possible that they may impair people's thinking or ability to work."

The changes in the brain were temporary and participants' connectivity returned to normal after the exposure.

Dr Carlsten speculated that the effects could be long lasting where exposure is continuous.

The researchers advise that people take appropriate steps to minimise their exposure to potentially harmful air pollutants like car exhaust.

"People may want to think twice the next time they're stuck in traffic with the windows rolled down," said Dr Carlsten.

"It's important to ensure that your car's air filter is in good working order, and if you're walking or biking down a busy street, consider diverting to a less busy route."

"Air pollution is now recognised as the largest environmental threat to human health and we are increasingly seeing the impacts across all major organ systems," said Dr Carlsten.

"I expect we would see similar impacts on the brain from exposure to other air pollutants, like forest fire smoke. With the increasing incidence of neuro-cognitive disorders, it's an important consideration for public health officials and policymakers."

The mass closure of schools expected across England and Wales due to teacher strikes next week will be a “good example” to pupils, the head of the UK’s largest teaching union has said.

Kevin Courtney, the joint general secretary of the National Education Union (NEU), told The Independent it was important that children witnessed teachers standing up for what they believed in and said most secondary school students supported the strike.

But his comments risk inflaming a row with the government which has warned of the impact Wednesday’s walkout will have on children’s education.

Gillian Keegan, the education secretary, warned unions against the action, saying the stakes have never been higher for pupils who had already lost months of classroom time because of Covid.

Mr Courtney predicted the 1 February walkout would be the biggest teaching strike in the UK in three decades, with most schools affected and some preparing to close because they can’t guarantee in advance they will have enough staff to open.

But an exclusive poll for The Independent suggests public support is weaker for striking teachers than for other professions.

The Savanta ComRes survey found 40 per cent of people opposed the strikes, while just 54 per cent supported them – a smaller percentage than for striking nurses who had the backing of two-thirds of voters.

Mr Courtney insisted the walkout would be an “important lesson” to pupils. For children to witness “that if you see something that is unjust, that you make a stand about it, I think that's an important lesson in life,” he said.

“That you should stand and challenge things that you think are wrong. And people might disagree about whether it is wrong. They might disagree about how you challenge it. But it's important to say to young people ‘if something's going wrong to challenge it’.

“I think this is showing a good example to pupils, people standing up (for their beliefs)”.

Walkouts could be biggest in 30 years, union says (PA)

He also suggested that older children support the strikes, adding: “I think secondary (school) pupils will, by and large, back their teachers about it”.

Last-ditch talks will be held on Monday in a bid to resolve a teachers’ pay dispute which threatens widespread disruption to schools. Union leaders agreed to meet Ms Keegan after previous talks failed to break the deadlock, but there is little optimism Wedneday’s strike can be avoided.

Mr Courtney also hit back at Ms Keegan’s rhetoric over Covid, pointing out that the government-appointed Covid recovery tsar suggested putting millions of pounds more than the government eventually did into helping pupils catch up on their schooling.

He added: “Covid has been really disruptive to children’s education, but that disruption is just carrying on … because we're having temporary teacher after temporary teacher in primary classrooms, because one in eight math lessons are taught by somebody who doesn't have a degree or a PGCE in maths.

“Education is disrupted because some schools have stopped teaching some subjects because they can’t get teachers for them. So disruption is happening all the time because of the government’s lack of investment in our schools.

“On the other hand, we’re talking about one day of strike action. So we don’t accept that. We are the people who are challenging that disruption. Just as the nurses are standing up for our NHS and challenging the government's lack of funding which means the NHS is not performing on non-strike days.”

Schools and headteachers have warned that sites might close on Wednesday even if they have enough staff to keep them open.

Tom Campbell, chief executive of the E-ACT schools trust, said: “We are aiming to be open for as many pupils as possible right across our schools. However, given the large numbers of teachers who have become NEU members since the original ballot, there remains significant uncertainty as to how many staff will be on strike.

“We are working hard to give our parents as much certainty as possible but there may be closures on the day as we get a clearer picture of numbers of staff.”

Steve Chalke, founder of the Oasis Community Learning trust of 52 academy schools, said: “We don’t know what’s going on at other schools, so we don’t how many teachers will have to be off to look after their own children. It makes the whole situation really quite chaotic.”

Paul Whiteman, the general secretary of the headteachers union, NAHT, said there was still no compulsion for staff to say if they plan to strike, as school leaders decided whether to shut on Wednesday.

“If headteachers can’t be sure they’ll have sufficient staff they should inform parents about closure,” he told The Independent. “We’re seeing schools have announced closure if they can’t know staffing levels. It’s the sensible thing to do.”

Mr Whiteman also said it would be “naive” to rely on volunteers who do not know school procedures, and warned that using supply staff would be seen as “provocative” strike-breaking action.

“It’s incendiary to use supply staff and volunteers to break a strike,” the union leader said. “School leaders have to be careful of unintended consequences. Things that could be seen a strike-breaking might mean harmony takes a long time to recover.”

A source close to the education secretary said she will use Monday’s meeting to reiterate her call from the weekend for teachers to inform schools if they plan to strike. The source also said the government will “continue to be open and collaborative”.