The Iran war is unraveling the supply chains crucial to the AI boom. The conflict in the Middle East has sent oil prices surging and disrupted the flow of key chipmaking materials. CNBC Business reports that companies like TSMC, which makes Nvidia chips, are feeling the heat as they face potential hits to profitability. Helium shortages loom, and rising costs for chemicals and essential metals are likely. Foxconn and Infineon echoed similar concerns, pointing to the worsening supply chain challenges.

Chipmakers are scrambling to adjust. It's not just helium; aluminium and bromine supplies have also been impacted, CNBC Business noted. Europe’s chip buyers are digging into backup stores as air freight routes become unreliable. VAT Group, a supplier to chipmakers, rerouted shipments to navigate these turbulent times.

The AI rally continued this earnings season. But companies building the underlying hardware powering the boom warned that the Iran war is putting pressure on their supply chains and profitability. A spiraling conflict in the Middle East has seen oil prices skyrocket and supply chains crucial to the tech sector hamstrung. Shortages of key chipmaking materials, including helium, are expected as the U.S. and Iran remain locked in a standoff.

TSMC, which manufactures Nvidia chips, said the situation in the Middle East could impact its profitability, with prices for certain chemicals and gases likely to increase. Foxconn, the world's largest contract electronics manufacturer, singled out events in the Middle East as a key challenge this year. Chipmaker Infineon said costs would rise for precious metals, energy and freight as a result of the war. The companies' situation could get worse, Francisco Jeronimo, analyst at IDC, told CNBC. "We can expect further negative impact this year...the price of gas, energy and freight are at an all-time high and are likely to remain high for a few more quarters, even if the situation de-escalates," he said. "Even with a potential ceasefire, the supply-side damage doesn't improve overnight."

Rising costs and supply chain disruption are two areas of concern for chip companies amid the Iran war. Helium, which is mainly produced as a by-product of natural gas production, is crucial to semiconductor manufacturing. Qatar, the world's second-largest supplier which owns part of the world's largest gas field, has seen its export capacity hamstrung by Iranian strikes. Qatar provided over 30% of the market in 2025, according to S&P Global.

Access to other materials crucial to the semiconductor manufacturing process, such as bromine and aluminium, have also been impacted. In March, chip buyers in Europe were paying more and tapping backup stores as the war disrupted air freight. Chip companies "all understand they need to diversify to be less dependent on a specific region," said Jeronimo. From a short-term perspective, TSMC is building inventory buffers and diversifying sourcing, he added. The Taiwanese chipmaker's strategy was "to continuously develop multi-source supply solutions to build a well-diversified global supplier base and to improve the local supply chain," Chief Financial Officer Wendell Huang said on an earnings call in April.

VAT Group, which supplies components to chipmakers, said it experienced supply chain disruption and had to reroute shipments of goods to customers as a result of the war. While the company said it expected no material impact on its 2026 full-year outlook, sales for its first quarter took a hit of 20-25 million Swiss francs ($25.5 million to $32 million), the company reported.

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Prolonged conflict concerns are rising. Rising energy costs are currently a "most acute" problem for manufacturers and fabs, Sebastien Naji, analyst at William Blair, told CNBC. But the longer the conflict in the Middle East lasts, the "more significant the second and third order impacts on component costs, vendor margins and overall AI data center economics," he added. Supply chain impacts and rising costs that have been exposed this company earnings season could just mark the beginning of the headwinds should a U.S.-Iran stalemate continue to play out. "If the blockade continues through the summer, we are more likely to revisit the risks and impacts in future earnings periods," Naji said.

Japanese semiconductor testing equipment maker Advantest said in its earnings that the "business environment surrounding the company remains unpredictable" due to "concerns of escalating tensions in the Middle East potentially leading to a slowdown in the global economy." While the direct impact on earnings was currently limited, the company said, certain costs, including in logistics, had already arisen, and supply chain shortages could emerge.

And yet, amid this turmoil, the AI rally hasn’t faded. Stocks continue to climb, riding a wave of investor optimism. Michael Field at Morningstar highlighted recent gains in the semiconductor sector, even as companies brace for darker days if the conflict drags on.

But there’s a broader picture. Rising energy costs and supply chain disruptions aren't just short-term headaches. Analyst Sebastien Naji pointed out to CNBC that prolonged tensions could lead to deeper economic shifts affecting vendor margins and AI data center economics. Companies are pivoting strategies to lessen regional dependencies. Diversification is the name of the game. TSMC is bolstering inventory buffers and exploring new sourcing avenues. Wendell Huang, the company's CFO, detailed plans to enhance their global supplier base on an April earnings call.

Yet, the risk of a protracted conflict remains. As of now, no diplomatic resolution is in sight. Analysts warn that the current challenges could only be the tip of the iceberg if the standoff extends. A summer blockade could force a re-evaluation of risks in future earnings seasons, Naji told CNBC.

For now, AI’s momentum offers some cushioning. But the unfolding geopolitical saga is a stark reminder of the fragility interwoven into tech’s global supply chains.