How the Iran war and rising energy prices are threatening semiconductor demand


SK Hynix Inc. 12-layer HBM3E memory chips, front, and a LPDDR5X CAMM2 memory module arranged at the company’s office in Seongnam, South Korea, on Tuesday, April 22, 2025.

SeongJoon Cho | Bloomberg | Getty Images

A prolonged conflict in the Middle East could impact the semiconductor industry’s access to key materials while rising costs could hit demand for chips that have been central to the artificial intelligence boom, analysts warned.

The U.S.-Israel war with Iran has shone a spotlight on the role countries in the Middle East play in the complex and intricate semiconductor supply chain.

Semiconductor stocks were caught in the sell-off seen in equity markets before President Donald Trump said on Monday that war will end “very soon.”

Memory chipmakers SK Hynix and Samsung have been hit particularly badly with more than $200 billion wiped off their combined value since the start of the war, even with both stocks rallying sharply on Tuesday. The VanEck Semiconductor ETF is down about 3% since the start of the war paring some losses after a 3.6% jump on Monday.

“A prolonged regional conflict could potentially disrupt chipmakers’ manufacturing operations regarding sourcing materials like Helium and Bromine,” Ray Wang, memory analyst at SemiAnalysis, told CNBC.

“For now, the impact appears to be limited. However, a prolonged conflict could eventually lead to disruptions or require adjustments in the sourcing of key materials.”

Middle East key to chip industry

A South Korean lawmaker warned last week that the Iran war could hamper access to key materials from the Middle East such as helium, Reuters reported. The lawmaker also warned a prolonged conflict could lead to higher energy prices.

So, what exactly is the role of certain countries in the Middle East in the semiconductor supply chain?

Qatar produces over a third of the world’s helium supply, according to the U.S. Geological Survey. Helium is used in the manufacturing process to transfer away heat. It is also used in areas like lithography, which is key for printing the intricate circuitry of a chip. There is no viable alternative to helium.

In 2023, the Semiconductor Industry Association warned that if the supply of helium were to be disrupted, “there would likely be shocks to the global semiconductor manufacturing industry.”

Not only is production an issue. Transportation of the element out of the Middle East could become increasingly difficult with the effective closure of the crucial Strait of Hormuz shipping route.

More than 25% of the world’s helium supply would be taken off the market by an extended shutdown of the Strait of Hormuz, Phil Kornbluth, president of Kornbluth Helium Consulting, told CNBC.

How the Iran war and rising energy prices are threatening semiconductor demand

Qatar’s state-owned QatarEnergy produces helium as a byproduct of liquefied natural gas (LNG). QatarEnergy’s Ras Laffan Industrial City was hit by an Iranian drone attack last week, taking the site offline.

Kornbluth said it “is getting hard to imagine” that the world is not looking at a “minimum” two-to-three month shutdown of helium production and a four-to-six month period before the helium supply chain “returns to normal.”

Bromine is another element in focus and is a key part of the semiconductor manufacturing process. Around two-thirds of the world’s bromine production comes from Israel and Jordan, according to the USGS.

“There is modest risk to critical materials. Helium is the main one we are watching. Qatar is one of the largest sources of Helium. Canada and the United States are also large suppliers,” Peter Hanbury, partner in Bain & Company’s Technology practice, told CNBC.

Energy impact on demand

Tim Seymour: If oil prices stay in a range South Korea is the place to invest

The conflict caused the price of Brent crude to rise above $100 before paring some of those gains on Tuesday. The “high depedency” of the U.S. on crude oil “indicates significantly higher costs for AI datacenters” which are roughly three-to-five times “more power-hungry than regular data centers,” Jing Jie Yu, equity analyst at Morningstar, told CNBC.

“This could significantly increase the total cost of ownership (TCO) for hyperscalers, thereby posing a threat towards AI infrastructure adoption,” Yu added. “An extended war would lead to some pullback in AI memory chip demand.”

Why are the Korean chipmakers most hit?

Asia markets and tech are relatively insulated from geopolitical risk, but Korea is an outlier

This, in turn, has fueled strong profits at both Samsung and SK Hynix and a massive rally in the share price over the last nine months or so, which has been built on this AI build out. But rising costs and the threat of weaker demand is making investors nervous.

MS Hwang, research director at Counterpoint Research, said electricity accounts for about half of a data center’s operating expenses and roughly half of that is used to power memory.

“Therefore, if memory prices continue to rise due to supply chain instability while energy-driven operating costs also climb, customers operating data centers may reduce their capital spendings and semiconductor demand,” Hwang told CNBC.

Morningstar’s Yu noted both Samsung and SK Hynix have supply contracts for HBM locked in for the year and “both players have sufficient reserves to sustain production for the time being.”

However, Yu said “an extended war could materially delay AI infrastructure builds” and weigh on more “conventional DRAM” products that are not subject to these longer term contracts. That could lead to weaker DRAM pricing and lower-than-expected revenues.

“An extended war also drives up overall cost of productions, from a utilities angle as well lower yields due to the lack of key stabilizing materials as mentioned above. Coupled with weaker DRAM pricing, we think this potentially weighs on the high margins that the market is currently pricing into valuations,” Yu said.

— CNBC’s Dylan Butts contributed to this report.

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Elon Musk’s xAI wants to build a power plant in Mississippi. Regulators plan a key meeting on Election Day


Elon Musk waves to the crowd during the 56th annual World Economic Forum (WEF) meeting in Davos, Switzerland, January 22, 2026.

Denis Balibouse | Reuters

With Elon Musk’s xAI planning to build a massive, natural-gas burning power plant in Southaven, Mississippi, the state’s environmental authority has scheduled a board meeting for Tuesday — Election Day for the 2026 primaries — to decide whether to grant the company key permits.

The NAACP and other civil rights and environmental advocates tried to get the meeting delayed, arguing that it was being rushed and would conflict with some residents’ efforts to vote. The groups also said that by holding the meeting in Jackson, nearly 200 miles away from Southaven, those directly affected by the plant are impeded from attending.

“This is not only a civic duty conundrum, but an unnecessary financial burden to Black residents and individuals who live in low-income and other communities near the facility,” the NAACP wrote in a letter to the Mississippi Department of Environmental Quality (MDEQ) that’s dated March 8, but was released publicly on Monday.

They asked that the hearing be rescheduled and moved to a site closer to the proposed facility.

The MDEQ denied the request on Monday, writing in a response to the NAACP that its permit board “regularly meets on the second Tuesday of each month, which has been the standard practice for decades,” and that the regulator, “considers matters on a statewide basis.” A copy of the letter was shared with CNBC.

The meeting is set to take place a little over a month after Musk merged xAI with SpaceX, his reusable rocket company, in a transaction that valued the combined entity at $1.25 trillion. Since starting xAI in 2023, Musk has tried to turn the AI company into an OpenAI competitor in the booming generative AI market.

Elon Musk’s xAI wants to build a power plant in Mississippi. Regulators plan a key meeting on Election Day

Training and running AI models requires hefty amounts of compute and power, and rising utility bills have been partly blamed on the massive electricity consumption of new data centers. At a meeting last week with the White House, execs from tech companies, including xAI, signed non-binding pledges to supply their own power for their facilities.

So far, xAI has relied on its Colossus 1 and Colossus 2 data centers in Memphis, Tennessee, just across the Mississippi state line. In Southaven, a roughly 15 minute drive from Memphis, xAI is investing in the proposed power plant, and a large data center dubbed Macrohardrr.

Following the MDEQ’s response on Monday, the NAACP said in a statement that by having the hearing the morning of Election Day, three hours away from the community, “their actions speak volumes.”

“They’re trying to sneak xAI’s data center into the community’s backyard and they don’t care about the people living there,” the letter said.

In February, the NAACP filed a notice of intent to sue xAI over alleged Clean Air Act violations in Southaven.

As CNBC previously reported, residents in the area say they’ve endured round-the-clock noise pollution, and are concerned about air quality and public health issues from xAI’s use of “temporary” natural gas-burning turbines. Research by scientists at the University of Tennessee found that xAI’s earlier turbine use added to air pollution woes in Greater Memphis.

At a public hearing on Feb. 17 in Southaven, about 200 residents turned out to implore state and local officials to deny xAI authorization to rapidly build out data and power infrastructure without greater transparency, community engagement and effective efforts to prevent noise and air pollution.

Physicians, parents, teachers and local officials spoke out at the hearing.

“We are slowly falling out of love with where we have decided to grow our family,” said Taylor Logsdon, a mother of three, citing pollutants, noise levels and negative health effects. “It’s no coincidence that this is happening now. And I feel it will only get worse.”

A recent investigation by Floodlight showed that xAI has been operating more than a dozen “temporary” turbines concurrently in Southaven, as it previously did in Memphis. The company has argued that the turbines did not require federal permits, but environmental compliance experts have disagreed.

Community pushback and regulatory requirements are among the factors driving Musk and other tech executives to explore the potential of data centers in space.

WATCH: SpaceX takes on xAI cash burn after merger

SpaceX takes on xAI cash burn after merger
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‘Sky is the limit’: Analysts warn oil prices could surge further


Women members of Iran’s Red Crescent society stand near smoke plumes from an ongoing fire following an overnight airstrike on the Shahran oil refinery in northwestern Tehran on March 8, 2026.

– | Afp | Getty Images

Analysts warned on Monday that there was no precedent for the surging price of oil, as the Middle East crisis deepens fears of prolonged production shut-ins and disruption to shipments through the strategically vital Strait of Hormuz.

Oil prices were on track for their biggest-ever jump in a single day on Monday, before significantly paring gains, following a fresh wave of U.S. and Israeli strikes across Iran over the weekend. Oil depots were among the targets.

International benchmark Brent crude futures with May delivery traded 12.8% higher at $104.53 per barrel on Monday morning, while U.S. West Texas Intermediate futures with April delivery were last seen nearly 12% higher at $101.76.

Brent futures had climbed as high as $119.5 per barrel earlier in the trading day, while WTI hit a session high of $119.48.

Neil Atkinson, former head of oil at the International Energy Agency, said the effective closure of the Strait of Hormuz is something energy markets had never seen before. Unless something changes very soon “we are in a potentially game-changing and unprecedented energy crisis,” he told CNBC on Monday.

‘Sky is the limit’: Analysts warn oil prices could surge further

Countries across the oil-rich Middle East region have started to scale back crude output. Iraq and Kuwait have already begun to shut-in production, with analysts warning that the United Arab Emirates and Saudi Arabia may also be vulnerable if the Strait of Hormuz remains closed for a sustained period.

“Though there are oil stocks around the world, the point is that if this closure of the Strait persists, those oil stocks if they are deployed will be depleted and we are going to be in a situation where, with the oil production actually shut in, in Iraq and possibly in Kuwait and maybe even in time in Saudi Arabia, that we are going to be in a crisis the likes of which we have never seen before,” Atkinson told CNBC’s “Squawk Box Europe.”

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WTI crude tops , hits highest level since April 2024, Brent crude breaks above  a barrel

Brent crude futures over one day.

Asked what this could mean for oil prices, Atkinson replied: “Sorry, we are getting into the realms of educated guesswork here. I mean, there is no precedent for this. The sky is the limit.”

Typically, about 20% of the world’s oil and gas passes through the Strait of Hormuz, but shipping traffic has all but halted through this key maritime corridor since the war started.

G7 emergency meeting

Oil prices came off their session highs on Monday shortly after the Financial Times reported that finance ministers from G7 economies would hold an emergency meeting on Monday to discuss a possible joint release of petroleum from reserves coordinated by the IEA.

The U.K.’s Treasury and French government confirmed to CNBC that the call would take place on Monday.

Fire breaks out at the Shahran oil depot after U.S. and Israeli attacks, leaving numerous fuel tankers and vehicles in the area unusable in Tehran, Iran, on March 8, 2026.

Anadolu | Anadolu | Getty Images

Tyler Goodspeed, chief economist at ExxonMobil, told CNBC’s “Squawk Box Europe” on Monday that it had been “consensus last week, and to a certain extent still today,” that everyone but Russia had “an interest in normal traffic resuming through the Strait of Hormuz.”

He added the consensus had been that there was “abundant oil on the water and some strategic reserves to cover any short-term gap.” Goodspeed said he was skeptical of this view as the conflict enters its second week.

“When I think of the probability distribution of possible outcomes here, it seems to me there are many more scenarios, and more probable scenarios, in which the strait remains effectively closed harder for longer than there are scenarios in which normal traffic resumes,” Goodspeed said.

Production shut-ins

Analysts at Societe Generale, meanwhile, warned that prolonged production shut-ins from Middle East countries “materially increase” the risk of restart complications.

“The UAE is likely the next producer at risk of shutting in output, potentially within the next five to seven days,” the analysts said in a research note published Monday.

“Qatar is also vulnerable, though its oil volumes are modest relative to its LNG exposure. Saudi Arabia faces less immediate risk but shut ins would become plausible if the Strait of Hormuz remains closed for a further two to three weeks,” they added.

CNBC’s Holly Ellyatt contributed to this report.

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Iran’s strategic oil island thrust into the spotlight as Middle East conflict escalates


A support vessel maneuvers near the crude oil tanker ‘Devon’ as it sails through the Persian Gulf towards Kharq Island oil terminal to transport crude oil to export markets in Bandar Abbas, Iran, on Mar. 23, 2018.

Ali Mohammadi | Bloomberg | Getty Images

Iran’s Kharg Island, a small but strategically vital strip of land nestled in the waters of the northern Persian Gulf, has been left untouched by U.S. and Israeli forces even as the Middle East conflict enters its second week.

The coral island, which is located about 15 miles off the coast of mainland Iran, serves as the centerpiece for Iran’s oil industry.

It is estimated that around 90% of the country’s crude exports pass through it before tankers then travel through the Strait of Hormuz. The island is also said to have a loading capacity of roughly 7 million barrels per day.

Kharg Island’s economic importance to Iran makes it particularly vulnerable to the threat of military action, although analysts say that any attempt to seize it would likely require a ground troop operation, which the U.S. appears reluctant to undertake.

An attack would also likely prompt further energy market volatility at a time when oil prices have soared to more than $100 a barrel.

Seizing the island “would cut off Iran’s oil lifeline,” which is essential for the regime, according to Petras Katinas, a research fellow in climate, energy and defense at RUSI, a London-based defense think tank.

“Of course, with shipping via the Strait of Hormuz now stopped, they cannot sell oil anyway, but looking ahead, seizure would give the US leverage during negotiations, no matter which regime is in power after the military operation ends,” Katinas told CNBC by email.

“Yet, seizure, would require a ground troop operation, which this administration seems hesitant to undertake. At least for now,” he added.

Crude futures climbed to their highest level since mid-2022 on Monday after the U.S. and Israel launched a fresh wave of strikes across Iran over the weekend.

The attacks struck several Iranian fuel sites, including oil storage depots, signaling a new phase of the war as the sprawling Middle East crisis continues into its tenth day.

International benchmark Brent crude futures with May delivery traded nearly 16% higher at $107.18 per barrel on Monday morning, paring earlier gains, while U.S. West Texas Intermediate futures with April delivery were last seen 12.5% higher at $102.1.

Fraught with risk

Fire breaks out at the Shahran oil depot after U.S. and Israeli attacks, leaving numerous fuel tankers and vehicles in the area unusable in Tehran, Iran, on March 8, 2026.

Anadolu | Anadolu | Getty Images

Iran’s strategic oil island thrust into the spotlight as Middle East conflict escalates

“There is one concept or one dimension of this that no one seemingly has mentioned, which is Kharg Island,” Jan van Eck, CEO of VanEck Funds, told CNBC’s “Power Lunch” on March 2.

“It’s where 90% of Iran’s oil gets exported out of — that is a choke point. And if you think that Trump just follows the same playbook that he did in Venezuela. What did he do? He cut off their oil exports, their hard currency, and I think he is going to want that leverage point going forward,” Van Eck said.

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Congressional Democrats demand reversal of Russian oil sales into India as energy prices soar


U.S. Sen. Ruben Gallego (D–AZ) speaks during the “People’s State of the Union” event ahead of U.S. President Trump’s State of the Union address in Washington, D.C., U.S., Feb. 24, 2026.

Elizabeth Frantz | Reuters

Congressional Democrats are demanding that the Trump administration immediately reverse a sanctions waiver allowing Indian refiners to purchase Russian oil as the Iran war wreaks havoc on global energy markets.

“Your recent decision to provide a 30-day waiver is dangerous, self-defeating, and indefensible,” Rep. Sam Liccardo, D-Calif., and Sen. Ruben Gallego, D-Ariz., wrote in a letter to Treasury Secretary Scott Bessent, which was shared exclusively with CNBC. “This waiver constitutes an inexplicable act of material benefit to the enemy.”

The Treasury Department last week issued a temporary 30-day sanctions carveout to allow India to buy Russian oil, an effort to ease skyrocketing oil prices caused by the war and the traffic standstill at the Strait of Hormuz.

The oil surge comes less than eight months before the November midterm elections that could flip the House of Representatives and the Senate to Democratic control, and polls show voters are souring on President Donald Trump’s handling of the economy.

After the sanctions waiver was issued, however, it was reported that Russia is assisting Iran in targeting U.S. ships, aircraft, and bases in the region. Gallego and Liccardo warned in the letter against the temporary lifting of the sanctions, which rewards Russia with a windfall as it helps to target U.S. troops in the Middle East.

“Rather than performing the necessary contingency planning that would keep India and other allies supplied with alternative sources, the Administration’s hapless approach has allowed Russia and other adversaries to profit from oil reserves previously constrained by sanctions, supporting Russian efforts to harm U.S. troops and thwart U.S. intelligence,” Gallego and Liccardo wrote in their letter. “By providing this waiver, you have signaled that the United States will reward attacks on our troops, not deter them.”

About 20% of the world’s oil and gas moves through the Strait of Hormuz, which has been largely impassible since the beginning of the U.S. and Israeli assault on Tehran.

Oil prices have surged in the days since the war began. U.S. crude oil topped $108 per barrel on Sunday, as did the global benchmark Brent, which rapidly approached $110 a barrel. That’s caused U.S. gasoline prices to spike, jumping to $3.44 per gallon on Sunday, according to Gasbuddy.

The price spikes come as both parties seek to win over economically anxious voters ahead of the November midterm elections that will determine whether Democrats or Republicans control Congress for Trump’s final years in office. Trump promised to lower costs, including gas prices, during his 2024 campaign — but his approval on the economy has plummeted as voters express concern about affordability.

Liccardo and Gallego, who are members of the House Financial Services Committee and Senate Banking Committee, argue in their letter that the war is only making life less affordable for Americans.

“A prolonged conflict with Iran and wider military operations throughout the Middle East will only deepen the energy cost-crisis, burdening Americans to pay more at the pump, and exacerbating the affordability crisis facing too many Americans,” they wrote.

Meanwhile, millions of barrels of Russian oil are stranded at sea due to U.S. sanctions imposed as punishment for Russia’s invasion of Ukraine.

Energy Secretary Chris Wright defended the move to temporarily allow the sale of Russian oil into India, calling it a “pragmatic step” that diverts oil that eventually would be sold to China. He said it could help alleviate price spikes in the immediate term, until the U.S. achieves its military aims in Iran.

“We’re not helping Russia by just accelerating the sale of their oil to stop the rise of energy prices and keep European and Asian refineries in oil,” Wright said. “We’re just doing pragmatic things to get through a short period that’ll bring in an era of even lower energy prices.”

Pressed on the reports of Russian intelligence sharing, Wright said, “There have been rumors of that, we don’t know if that’s true or not.”

He added: “Russia is an expert at causing trouble around the world.”

Read more CNBC politics coverage

Liccardo and Gallego asked Bessent whether he plans to continue offering waivers if the Strait of Hormuz remains closed. They also asked whether the Treasury Department had advance notice of the intelligence sharing between Russia and Iran, and whether there are any conditions that would cause the waiver to be revoked.

The pair also demanded information on any emergency oil price stabilization plans the administration had before launching the assault on Iran.

“The questions below address two distinct lines of accountability. The first concerns the specific waiver decision and its immediate consequences for sanctions integrity, energy markets, and troop safety,” they wrote of the questions. “The second concerns the administration’s planning failures prior to its unauthorized military action, and the absence of coordination with allies and partners, whose cooperation is essential to maintaining American sanctions architecture, which this waiver now undermines.”

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Energy prices will fall when U.S. destroys Iran’s ability to attack tankers in Strait of Hormuz: Wright


U.S. Energy Secretary Chris Wright pumps gas at a gas station in Corpus Christi, Texas, U.S., February 27, 2026.

Sheila Dang | Reuters

Energy Secretary Chris Wright said oil and gas prices will begin to fall when the U.S. begins to knock out Iran’s ability to hinder tanker traffic through the Strait of Hormuz, as Americans weather spiking gas prices due to the war in Iran.

“The plan is to get oil and natural gas and fertilizer and all the products from the Gulf flowing through the straits before too long,” Wright said on Fox News Sunday. “We’re massively attriting their ability to strike with missiles and drones, and that rate of attrition will increase in the coming days. So we’ll be cautious, we’ll be careful, but energy will flow soon.”

President Donald Trump was elected to a second term in the White House in part by promising to lower gas prices and defeat high inflation. He has frequently touted lower gas prices ahead of the November midterm elections, which will determine control of Congress for the remainder of his term.

But gas prices and oil have spiked since the war began in Iran, with vessel bottlenecks in the Strait of Hormuz causing the surge. About 20% of global energy supply moves through the strait.

Gas has jumped to over $3.46 per gallon on average in the U.S., according to GasBuddy. U.S. crude oil has soared to more than $91 per barrel, and the global benchmark Brent crude has spiked to over $92 per barrel.

Wright said that “one large tanker has already gone through the straits with no issues at all.” Typically, roughly 100 tankers and cargo ships move through the strait every day.

Wright said the disruption would last for “weeks, certainly not months.”

“We believe this is a small price to pay to get to a world where energy prices will return back to where they were,” Wright said. “Iran will finally be defanged, and now you can see more investment, more free flow of trade, less ability to threaten energy supplies.”

Read more CNBC politics coverage

When asked about potentially tapping the U.S. Strategic Petroleum Reserve to reduce pain at the pump, Wright suggested such a move is not necessary yet. In the past, the SPR has been tapped to mitigate disruptions in oil flows.

“We’re more than happy to use [the SPR] if needed,” Wright said on CBS’s “Face the Nation.” “But … it’s a logistics issue, where do they need oil? They need oil at refineries in Europe and in Asia.”

Trump has also downplayed the option of tapping the SPR.

“We’ve got a lot of oil. Our country has a tremendous amount,” Trump told reporters aboard Air Force One on Saturday. “There’s a lot of oil out there. That’ll get healed very quickly.”

WATCH: No traffic will flow through Strait of Hormuz until a resolution with Iran: Kpler’s Matt Smith

Energy prices will fall when U.S. destroys Iran’s ability to attack tankers in Strait of Hormuz: Wright
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Hidden signal shifts in GPS and BeiDou revealed and stabilized | Newswise


Newswise — Global Navigation Satellite Systems (GNSS) transmit extremely weak signals that are vulnerable to interference and intentional jamming. Flex power technology allows ground controllers to redistribute signal energy, strengthening specific transmissions without increasing total satellite power. While this improves anti-interference capability, it also alters signal characteristics and introduces unexpected errors into high-precision positioning processes. Variations in signal strength can affect parameters such as code bias, satellite clock offset, and ionospheric corrections, potentially degrading positioning accuracy. Existing detection approaches remain limited, especially for the rapidly evolving BDS, and conventional processing models struggle to adapt to dynamic signal behavior. Based on these challenges, in-depth research is needed to understand and mitigate the impacts of flex power on satellite navigation performance.

Researchers from Space Engineering University, the Beijing Institute of Tracking and Telecommunications Technology, the Shanghai Astronomical Observatory of the Chinese Academy of Sciences, Henan Polytechnic University, Shandong University of Science and Technology, and Wuhan University reported the findings (DOI: 10.1186/s43020-026-00190-3) in Satellite Navigation (2026) a comprehensive investigation into flex power operations in the GPS and the BDS. The study analyzed operational modes, developed a new detection method combining signal-to-noise measurements with hardware delay indicators, and evaluated impacts across positioning algorithms. Published in 2026, the work presents an integrated framework designed to maintain resilient PNT services under dynamically changing satellite signal conditions.

The team first examined how flex power redistributes signal energy across satellite channels. Unlike normal operations, flex power produces step-like variations in carrier-to-noise ratios, creating detectable signatures in observation data. Building on this insight, researchers proposed a dual-indicator detection approach combining carrier-to-noise density (C/N₀) measurements with hardware delay variations. This method significantly reduces false alarms while enabling accurate detection across both GPS and BDS.

The study then evaluated how flex power influences multiple components of high-precision navigation. Results showed that GPS signals remain relatively stable, whereas BDS satellites exhibit stronger sensitivity, with noticeable changes in code bias and observation consistency. To address these disruptions, the researchers introduced “resilient” estimation strategies that dynamically adjust processing models in response to flex power events.

New algorithms were developed for code bias correction, satellite clock offset estimation, and phase bias modeling, allowing navigation systems to switch seamlessly between normal and flex-power states. The framework also improves ionospheric modeling accuracy by compensating for signal fluctuations that traditional models treat as constant. Validation experiments demonstrated improved continuity and stability in Precise Point Positioning (PPP), confirming that navigation accuracy can be preserved even during active signal power redistribution.

According to the researchers, resilient positioning is becoming essential as satellite systems adopt more adaptive signal strategies. Flex power enhances anti-jamming capability but fundamentally changes signal behavior, meaning traditional static models are no longer sufficient. The team emphasized that detecting flex power in real time and adapting processing algorithms accordingly represents a key step toward next-generation integrated PNT systems. By linking signal monitoring with adaptive estimation, the approach ensures that navigation services remain reliable for both civilian and scientific users operating in challenging electromagnetic environments.

The proposed framework has broad implications for aviation navigation, autonomous transportation, disaster monitoring, and precision timing infrastructure. As GNSS systems increasingly employ adaptive transmission strategies to counter interference, resilient processing methods will be critical for maintaining uninterrupted services. The study’s detection and correction strategies could be integrated into global monitoring networks and next-generation GNSS receivers, improving robustness without requiring hardware changes. Beyond GPS and BDS, the methodology may also support future multi-constellation navigation systems, contributing to more secure and dependable global positioning services. Ultimately, the work advances the transition from static navigation models toward adaptive, interference-resilient satellite navigation architectures.

###

References

DOI

10.1186/s43020-026-00190-3

Original Source URL

https://doi.org/10.1186/s43020-026-00190-3

Funding information

This research was funded by Scientific Research Key Laboratory Fund (Grant No. SYS-ZX02-2024-01).

About Satellite Navigation

Satellite Navigation (E-ISSN: 2662-1363; ISSN: 2662-9291) is the official journal of Aerospace Information Research Institute, Chinese Academy of Sciences. The journal aims to report innovative ideas, new results or progress on the theoretical techniques and applications of satellite navigation. The journal welcomes original articles, reviews and commentaries.




WTI crude tops $86, hits highest level since April 2024, Brent crude breaks above $89 a barrel


Oil prices jumped to their highest levels in months on Monday as Iran and Israel escalated attacks in the Middle East, disrupting shipments from the region.

Bloomberg Creative Photos | Bloomberg Creative Photos | Getty Images

Oil prices rose on Friday morning as investors continued to assess the impact of the U.S.-Iran war on global energy markets.

By 6:58 a.m. ET, global benchmark Brent crude futures added 4.5% to trade at $89.23 a barrel, notching a fresh 52-week high and levels not seen in nearly two years. U.S. West Texas Intermediate crude futures were last seen 6.3% higher at $86.06, hitting their highest level since April 2024.

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WTI crude tops , hits highest level since April 2024, Brent crude breaks above  a barrel

Crude oil prices

Prices dipped overnight as investors continued to assess the impact of the U.S.-Iran war on global energy supply.

Crude prices are on track for their biggest weekly gain since Russia’s full-scale invasion of Ukraine in early 2022.

The spike comes as the U.S.-Iran conflict spreads across the Middle East, disrupting energy production and bringing traffic in the Strait of Hormuz, a critical shipping route, to a near standstill.

On Friday morning, the Financial Times reported that Qatar’s energy minister said the war in the Middle East could see Gulf energy exporters stop shipments within days. Saad al-Kaabi told the FT that crude prices could reach $150 a barrel in the coming weeks if oil tankers were unable to pass through the Strait of Hormuz.

Qatar's energy minister warns of $150 oil amid Iran conflict

Prices briefly dipped overnight after the U.S. issued a 30-day waiver to India — the world’s third-largest oil importer — to resume purchases of Russian oil. Washington had earlier imposed 25% “penalty” tariffs on India for buying Russian crude, which were revoked last month. The retreat in prices also came after news agency Reuters, citing an unnamed White House official, reported that the U.S. Treasury is planning to announce measures to curb energy price spikes, including potential interventions in the oil futures market.

The average price for a gallon of regular gasoline jumped nearly 27 cents since in the week to Thursday to $3.25, according to data from U.S. travel organization AAA.

The conflict between Iran and the U.S. enters its seventh day on Friday. In a press conference on Thursday, U.S. Defense Secretary Pete Hegseth said the U.S. had “only just begun to fight.”

“Iran is hoping that we cannot sustain this, which is a really bad miscalculation,” he told reporters.

“There’s no shortage of American will here … If you think you’ve seen something, just wait. The amount of combat power that’s still flowing, that’s still coming, that we’ll be able to project over Iran is at multiples of what it currently is right now when you add up our capabilities and those of the Israeli Defense Forces.”

Inflation boost?


Is Cuba next? What the fallout from the Iran war means for Havana


Cuba’s President Miguel Diaz-Canel (C) takes part in the “Anti-Imperialist” protest in front of the US Embassy against the US incursion in Venezuela, where 32 Cuban soldiers lost their lives, in Havana on January 16, 2026.

Yamil Lage | Afp | Getty Images

“Cuba’s next,” said Sen. Lindsey Graham, a Republican and ally of U.S. President Donald Trump, after the U.S. and Israel began strikes on Iran.

The U.S. has imposed an oil blockade on the communist-run island nation since January, shortly after its ally and a key provider of oil, Venezuelan President Nicolás Maduro, was seized in an extraordinary U.S military operation. It has caused a worsening economic crisis and left Cuba facing its biggest test since the collapse of the Soviet Union.

Now Iran, with which Cuba has a strategic partnership, is under sustained attack. “This communist dictatorship in Cuba, their days are numbered,” Graham told Fox News’s “Sunday Night in America.”

Before the Iran strikes, Trump said he wanted a “friendly takeover” of the island, without giving details. The comments, alongside the U.S. attacks on Iran and Venezuela, have done little to allay growing fears in Havana, experts told CNBC.

The message from Cuba is one that has been constant since 1959: survival will only be achieved through adaptation to the changing geopolitical context.

Par Kumaraswami

professor at the University of Nottingham

A “friendly takeover” could resemble Venezuela in the aftermath of Maduro’s removal, “where you still have an authoritarian regime in power but moving in the direction and at the speed that the US determines,” said Carlos Solar, senior research fellow, Latin American Security at RUSI, a London-based defense think tank.

Solar told CNBC by email that Cuba had lost support from Venezuela and Iran “at a moment of maximum pressure” from the Trump administration.

But he added: “What is unclear is how the US will make the Cuban regime break, forcing Havana to capitulate.”

“We are not seeing the kind of military buildup prelude to operation Absolute Resolve that eventually led to Maduro being captured in January. It could well be that the US approaches Cuba in a totally different way,” Solar said.

A Turkish Airlines plane takes off at Jose Marti International Airport in Havana on February 9, 2026.

Yamil Lage | Afp | Getty Images

A spokesperson for the White House and Cuba’s embassy in London did not respond to a CNBC request for comment.

Cuba’s Foreign Affairs Ministry has called for an end to the Middle East conflict and said it “condemns in the strongest terms” the joint U.S. and Israel attack on Iran on Feb. 28.

‘Cubans are increasingly concerned’

Russia recently warned that the situation in Cuba appeared to be escalating after Cuban forces killed four people who were off its coast in a U.S.-registered speedboat.

The blockade has effectively cut Cuba off from Venezuelan oil since launching a military operation to capture Maduro on Jan. 3. Cuba said 32 of its citizens were killed in the attack.

Trump has also said Cuba’s government poses “an unusual and extraordinary threat” and pledged to impose tariffs on any country that supplies it with oil. The U.S. Treasury said late last month, however, that it would allow the resale of Venezuelan oil to Cuba’s private sector.

The move appeared to reflect a small step to alleviate the island’s acute fuel shortage, which has forced a wave of airlines cut flights to the country. Tourism has long been a significant source of revenue for Cuba’s cash-strapped government.

A bicitaxi rides past garbage piled up on a street in Havana on February 17, 2026.

Yamil Lage | Afp | Getty Images

Par Kumaraswami, professor of Latin American Studies at the U.K.’s University of Nottingham, told CNBC the Trump administration’s strikes against Iran and recent comments about Cuba’s regime had increased the mood of uncertainty and anxiety in Havana.

“Cubans are increasingly concerned about how they will survive in the midst of such global chaos, and the recent violence against Iran will have done nothing to allay their fears,” Kumaraswami said by email.

“At the same time, there are indications that the US administration is negotiating with the Cuban government regarding changes to Cuba’s economy, and this is indeed mirrored by Cuban President Miguel Díaz-Canel’s current focus on economic improvement as the priority,” she added.

Kumaraswami said the “message from Cuba” had been “constant” since the communists came to power in 1959: “Survival will only be achieved through adaptation to the changing geopolitical context.”

‘Cuba just bought itself a window’

Cuba has adopted measures to protect essential services and ration fuel supplies for key sectors. The United Nations has previously warned of a possible humanitarian “collapse” as the country’s oil supplies dwindle.

“Cuba just bought itself a window — but it’s a narrow one,” Robert Munks, head of Americas research at risk intelligence company Verisk Maplecroft, told CNBC by email.

“The operation against Iran removes Cuba – temporarily – from Washington’s sights, as the US administration will be preoccupied with the Gulf campaign in the coming weeks.”

But Munks said he expected Cuba to return to the headlines, adding that the Cuban diaspora in South Florida would apply pressure and Washington has shown it is prioritizing the Western Hemisphere in its remodeled national security strategy.

“The regime in Havana remains in control, for the moment. Any unrest caused by economic hardship could be sudden and spontaneous, which would give Washington a pretext to refocus on pressuring the regime,” Munks said.


“Smart” Molecular Self-Assembly for Safer, Longer-Lasting Solid-State Batteries | Newswise


Newswise — As the global demand for electric vehicles and portable electronics surges, high-energy-density and inherently safe energy storage systems has become more important than ever. However, while solid-state lithium batteries (SSLBs) offer high safety due to their non-flammability, traditional solid electrolytes face significant bottlenecks, including low ionic conductivity, poor interfacial contact, and mechanical brittleness.

In a review published in Supramolecular Materials, a team of researchers from China highlight a new approach: using supramolecular chemistry to engineer “smart” battery components. The study provides a molecular engineering foundation for realizing practical, high-efficiency, and safe next-generation batteries.

“Unlike traditional materials that rely on rigid covalent bonds, supramolecular materials utilize reversible non-covalent interactions such as hydrogen bonding, halogen bonding, and π-π stacking to create highly ordered, self-assembled structures,” explains senior and corresponding author Kai Liu.

Notably, supramolecular chemistry provides a programmable molecular-level design framework for solid-state batteries. “These dynamic interactions act as a ‘smart glue,’ allowing electrolytes to self-heal microcracks and adapt to the volume changes of electrodes during cycling,” adds Liu. “This flexibility is crucial for suppressing lithium dendrite growth, which often leads to short circuits in conventional designs.”

The researchers also detailed how these molecular interactions build efficient ion transport pathways, lowering energy barriers and improving the battery’s rate performance. “By precisely regulating the interfacial composition, supramolecular strategies significantly reduce impedance and enhance long-term cycling stability,” says Liu.

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References

DOI

10.1016/j.supmat.2025.100118

Original Source URL

https://doi.org/10.1016/j.supmat.2025.100118

Funding Information

This research was supported by the Tsinghua University-China Petrochemical Corporation Joint Institute for Green Chemical Engineering (224247) and the Tsinghua-Toyota Joint Research Fund.

About Supramolecular Materials

Supramolecular Materials is a publication of peer-reviewed research. It covers all aspects of these materials, which are based on supramolecular interactions or self-assembly.