Finance
China’s antimony export controls rattle the tungsten industry
Pictured are are crystals of the antimony ore stibnite (antimony sulphide).
Universalimagesgroup | Universal Images Group | Getty Images
BEIJING — China’s latest export controls has rattled insiders of the critical minerals industry, and some are concerned that Beijing will leverage its global supply chain dominance in unprecedented ways.
China’s Ministry of Commerce announced Thursday that export controls on antimony would take effect Sept. 15. Antimony is used in bullets, nuclear weapons production and lead-acid batteries. It can also strengthen other metals.
“Three months ago, there’s no way [any] one would have thought they would have done this. It’s quite confrontational in that regard,” Lewis Black, CEO of Canada-based Almonty Industries, said in a phone interview. The company has said it’s spending at least $125 million to reopen a tungsten mine in South Korea later this year.
Tungsten is nearly as hard as a diamond, and used in weapons, semiconductors and industrial cutting machines. Both tungsten and antimony are on the U.S. critical minerals list, and less than 10 elements away from each other on the periodic table.
“My sector is now thinking this is getting much closer to home than graphite,” Black said, referring to China’s previous export controls. Last year, Beijing, the world’s largest graphite producer, said it would enforce export permits for the crucial battery material amid scrutiny from foreign countries worried about its dominance.
“I can’t explain this move and I think that’s what rattled a lot of people in this sector, my customers, and they don’t have a plan B, which China is very aware of. There hasn’t been one for 30 years,” he said.
“There’s always been an equilibrium … they were never weaponized because they could create this snowball of escalation,” he said.
China accounted for 48% of global antimony mine production in 2023, while the U.S. did not mine any marketable antimony, according to the U.S. Geological Survey’s latest annual report. The U.S. has not commercially mined tungsten since 2015, and China dominates global tungsten supply, the report said.
“I think it’s the start of some export restrictions in a number of rare earths, minerals,” Tony Adock, executive chair of Tungsten Metals Group, said in a phone interview. He said he found it hard to believe that China would just restrict antimony.
“The way that the [Chinese Commerce Ministry] statement was written, we’ve extrapolated that to tungsten and other rare earths. It may not happen,” Adock said, noting that “tungsten is probably the highest economic importance.”
China’s Ministry of Commerce did not immediately respond to a request for comment.
Tungsten’s military importance
The U.S. has sought to restrict China’s access to high-end semiconductors, following which Beijing announced export controls on germanium and gallium, two metals used in chipmaking.
While tungsten is also used to make semiconductors, the metal, like antimony, is used in defense production.
“China has a declining tungsten production, but tungsten is absolutely vital, far more than antimony, in military applications,” said Christopher Ecclestone, principal and mining strategist at Hallgarten & Company.
He expects China will put export controls on tungsten by the end of the year, if not in the next month or two.
“During a situation where there’s a bit of a race to secure metals in case there is some sort of flare up in tensions, frankly we talk about South China Sea or Taiwan, you want to have as much tungsten as you can,” Ecclestone said. “But you also want people on the other side to have as least tungsten as you can engineer.”
The U.S. is already keen to reduce its reliance on China for tungsten.
Starting in 2026, the U.S. REEShore Act prohibits the use of Chinese tungsten in military equipment. That refers to the Restoring Essential Energy and Security Holdings Onshore for Rare Earths Act of 2022.
The House Select Committee on the Strategic Competition between the United States and the Chinese Communist Party in June announced a new working group on the U.S. critical minerals policy.
Ecclestone said that last week, the niche market of antimony trading noticed that the U.S. price for buying the metal from Rotterdam was exponentially higher than the price for delivery out of Shanghai. That’s after antimony prices kept rising even after pandemic-related shipping disruptions ended, he said.
“There’s a suspicion that the Pentagon has been re-stuffing its reserves of certain metals, and most notably antimony because it needs antimony for munitions,” said Ecclestone, who founded the mining strategy firm in 2003.
The U.S. Department of Defense did not immediately respond to a request for comment.
China is acting more in retaliation “against what it views as an intrusion into its national interests,” Markus Herrmann Chen, co-founder and managing director of China Macro Group, said in an email.
He pointed out that China’s Third Plenum meeting of policymakers in July “put forward a completely new policy goal of better coordinating the entire minerals value chain, likely reflecting the further heightened supply importance of ‘strategic mineral resources’ for both business and geoeconomic interests.”
Emerging alternatives
As China seeks to ensure its national security, companies in the U.S. and elsewhere are looking to tap a nascent opportunity.
“Energy Fuels has been the largest supplier of uranium oxide to the U.S. for several years supporting domestic nuclear energy production,” Mark Chalmers, president and CEO of Colorado-based Energy Fuels, said in a statement. He said the company is creating a U.S. rare earths product line.
“We recognized that our 40-year expertise working in naturally radioactive materials give us a competitive advantage to duplicate China’s success separating multiple [rare earth elements] from low-cost and plentiful monazite,” Chalmers said, referring to a mineral from which the desired metals can be extracted.
It remains unclear whether China will follow through with a blanket implementation of the latest export controls.
“They don’t want to acknowledge that this could escalate,” Black said. “But I don’t think China wants this to escalate either. The last thing you want to create is another boogey man [at] the beginning of a U.S. election. Let’s see in a week whether this is really a policy or not.”
Cybersecurity and enterprise software stocks have been market dogs in 2026, with fears that AI will wipe out a wide range of companies in the enterprise space dominating the narrative. But they snapped a brutal losing streak this past week, joining in the broader market rally that saw all losses from the U.S.-Iran war regained by the Dow Jones Industrial Average and S&P 500.
Cybersecurity has been “a victim of some of the AI-related headlines,” Christian Magoon, Amplify ETFs CEO, said on this week’s “ETF Edge.”
It wasn’t just niche cybersecurity names. Take Microsoft, for example, which was recently down close to 20% for the year. Its shares surged last week by 13%.
A big driver of the pummeling in software stocks was a rotation within tech by investors to AI infrastructure and semiconductors and some other names in large-cap tech, Magoon said, and since cybersecurity stocks and ETFs are heavily weighted towards software companies, they were left behind even as those businesses continue to grow on a fundamental basis.
But Wall Street now has become more bullish with the stocks at lower levels. Brent Thill, Jefferies tech analyst, said last week that the worst may be over for software stocks. “I think that this concept that software is dead, and then Anthropic and OpenAI are going to kill the entire industry, is just over-exaggerated,” he said on CNBC’s “Money Movers” on Wednesday.
“Big Short” investor Michael Burry wrote in a Substack post on Wednesday that he is becoming bullish about software stocks after the recent selloff. “Software stocks remain interesting because of accelerated extreme declines last week arising from a reflexive positive feedback loop between falling software stocks and changes in the market for their bank debt,” he wrote.
The Global X Cybersecurity ETF (BUG), is down about 12% since the beginning of the year, with top holdings including Palo Alto Networks, Fortinet, Akamai Technologies and CrowdStrike. But BUG was up 12% last week. The First Trust NASDAQ Cybersecurity ETF (CIBR) is down 6% for the year, but up 9% in the past week.
Piper Sandler analyst Rob Owens reiterated an “overweight” rating on Palo Alto Networks which helped the stock pop 7% — it is now down roughly 6% on the year. Its peers saw similar moves, including CrowdStrike.
Performance of Global X cybersecurity ETF versus S&P 500 over past one-year period.
Magoon said expectations may have become too high in cybersecurity, and with a crowding effect among investors, solid results were not enough to to push stocks higher. But the down-and-then-back-up 2026 for the sector is also a reminder that when stocks fall sharply in a short period of time, opportunity may knock.
“Once you’re down over 10% in some of these subsectors, you start to see the contrarians start to say, ‘well, maybe I’ll take a look at this,'” Magoon said.
He said AI does add both opportunity and uncertainty to the cybersecurity equation, increasing demand but also introducing new competition. But he added, “I think the dip is good to buy in an AI-driven world,” specifically because the risks to companies may lead to more M&A in cyber names that benefits the stocks.
For now, investors may look for opportunity on the margins rather than rush back into beaten-up tech names. “I think investors are still going to remain underweight software,” Thill said.
But Magoon advises investors to at least take the reminder to keep an eye on niches in the market during pronounced downturns. “The best-performing are often the least bought and do the best over the next 12 months versus late-in-the-game piling on,” he said.
While that may have been a mindset that worked against the last investors into cybersecurity and enterprise software in mid-2025 when the negative sentiment started building, at least for now, it’s started working for the stocks in the sector again.
Meanwhile, this year’s biggest winner is also a good example of what can be an extended trade in either a bullish or bearish direction. Last year, institutional ownership of energy was at multi-year lows, Magoon said, referencing Bank of America data. “Reverse sentiment can be a great indicator,” he said.
But he cautioned that any selective buying of stocks that have dipped does have to contend with the risk that there is a potentially bigger drawdown in the market yet to come in 2026. That is because midterm election years historically have been marked by large drawdowns. “If you think it is bad right now, it could get a lot worse,” Magoon said. But he added that there’s a silver-lining in that data, too, for the patient investor. The market has posted very strong 12-month returns after midterm election drawdowns end. So, for investors with a longer-term time horizon and no need for short-term liquidity, Magoon said, “stick in there.”
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New innovation in the exchange-traded fund industry could come at a cost to investors during extreme conditions.
According to MFS Investment Management’s Jamie Harrison, ETFs involved in increasingly complex derivatives and less transparent markets may be in uncharted territory when it comes to violent downturns.
“Those would be something that you’d want to keep an eye on as volatility ramps up,” the firm’s head of ETF capital markets told CNBC’s “ETF Edge” this week. “As innovation continues to increase at a rapid pace within the ETF wrapper, [it’s] definitely something that we advise our clients to be really front-footed about… Lack of transparency could absolutely be an issue if we’re going to start seeing some deep sell-offs.”
His firm has been around since 1924 and is known for inventing the open-end mutual fund. Last year, ETF.com named MFS Investment Management as the best new ETF issuer.
“It’s important to do due diligence on the portfolio,” he said. “Having a firm that has deep partnerships, deep bench of subject matter experts that plays with the A-team in terms of the Street and liquidity providers available [are] super important.”
Liquidity as the real issue?
Harrison suggested the real issue is liquidity, particularly during a steep sell-off.
“We’ve all seen the news and the headlines around potential private credit ETFs. That picture becomes much more murky,” he added. “It’s up to advisors, to investors [and] to clients to really dig in and look under the hood and engage with their issuers.”
He noted investors will have to ask some tough questions.
“What does this look like in a 20% drawdown? How does this liquidity facility work? Am I going to be able to get in? Am I going to be able to get out? And if I’m able to get out, am I able to get out at a price that’s tight to NAV [net asset value], and what’s the infrastructure at your shop in terms of managing that consideration for me,” said Harrison.
Amplify ETFs’ Christian Magoon is also concerned about these newer ETF strategies could weather a monster drawdown. He listed private credit as a red flag.
“If your ETF owns private credit, I think it’s worth taking a look at, kind of what the standards are around liquidity and how that ETF is trading, because that should be a bit of a mismatch between the trading pace of ETFs and the underlying asset,” the firm’s CEO said in the same interview.
Magoon also highlighted potential issues surrounding equity-linked notes. The notes provide fixed income security while offering potentially higher returns linked to stocks or equity indexes.
“Those could potentially be in stress due to redemptions and the underlying credit risk. That’s another kind of unique derivative,” Magoon said. “I would very closely look at any ETF that has equity-linked notes should we get into a major drawdown or there be a contagion in private credit or something related to the banking system.”
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