A Supply War More Than a Technology War The rivalry over semiconductors has long been told as a competition of engineers: who etches the finest, who designs the most powerful architecture. That readin

A Supply War More Than a Technology War

The rivalry over semiconductors has long been told as a competition of engineers: who etches the finest, who designs the most powerful architecture. That reading is now insufficient. The central stakes have shifted upstream, toward the physical resources without which no chip leaves the factory: rare earths, base metals, energy, and manufacturing capacity itself. Artificial intelligence acts as an accelerator. Sector projections point to semiconductor industry revenues approaching ?.3 trillion, growth that upends the sector's traditional economics and realigns supply chains.

In this context, every restriction, every threat of sanctions, and every industrial sovereignty decision reshapes the geography of trade. States no longer settle for subsidizing their champions: they seek to lock down access to inputs, impose local processing of their resources, and reduce their exposure to suppliers deemed unreliable. The result is a gradual fragmentation of technology trade routes, with the knock-on effect of cost overruns that ripple through the entire value chain.

Physical infrastructure is thus becoming the new strategic nodes of the digital economy: data centers, foundries, fiber-optic networks, power generation. The concentration of power around these assets mechanically raises barriers to entry and turns the industrial question into a geopolitical one.

Rare Earths: The West Tries to Break Its Asian Dependence

The Separation Bottleneck

The West's Achilles' heel is not so much extraction as separation. Turning a concentrate of mixed rare earths into usable individual oxides remains a complex, costly, and energy-intensive chemical operation, and effective mastery of it today lies mostly in Asia, and particularly in China. This dependence concerns heavy rare earths in particular, which are indispensable to many cutting-edge industries.

It is precisely this lock that the Franco-American alliance between USA Rare Earth, quantum computing specialist Pasqal, and Riven Systems, an automation and autonomous laboratory platform, aims to break. The idea is to use quantum machine learning and automated experimentation to identify new, higher-performing extraction molecules. The industrial goal is explicit: to make possible smaller, cheaper, and less energy-hungry processing facilities, in order to build a Western supply chain that is both safer and more competitive. The program combines automated experiments, comparisons of quantum models, and optimization of USA Rare Earth's processing flows, whose assets include the Round Top mine.

The strategic appeal of this approach is twofold. On one hand, it attacks the problem through cost, where the Western industry has historically lost the battle. On the other, it bets on a technological breakthrough rather than a simple replication of existing processes, which could help bypass a scale gap that is difficult to close through conventional means.

Recovering Waste Rather Than Digging

Another path consists of exploiting deposits that have already been extracted. In Brazil, Rainbow Rare Earths is moving its Uberaba project into the pre-feasibility phase, in collaboration with The Mosaic Company. The principle: recover rare earth oxides from phosphogypsum waste using proprietary technology. The pre-feasibility study is expected in the second half of 2027, but early economic assessments are already spectacular, with a projected net present value of ? million and an internal rate of return of 45%.

These figures explain the appetite for alternative sources. When access to raw materials becomes uncertain, the ability to produce high-purity rare earths from industrial residues changes the game: it shortens timelines, reduces the environmental footprint, and, above all, creates supply points outside circuits dominated by a single country. The project also serves as a demonstrator for the replicability of the technology at other phosphogypsum deposits, such as Phalaborwa.

Africa, the New Front in the Competition

The race is not limited to the Americas. Tanzania has uncovered rare earth deposits containing neodymium and praseodymium, two elements essential to clean energy technologies, in the village of Mkiu, Ludewa district, Njombe region. The discovery was made in partnership with Chinese company Hongji Mining Co. Ltd, and authorities are now assessing its economic potential with a view to large-scale investment and export development.

This case illustrates the ambivalence of the ongoing realignment. While the West seeks to diversify its sources, China is consolidating its role in the African mining sector. The new rare earth routes therefore do not mechanically replace the old ones: they overlap, and the question of who will control the processing of Tanzanian ores will be as decisive as that of their extraction.

Resource Nationalism Redraws Trade Flows

Brazil Rejects the Raw Export Model

Brazil embodies a major shift: the transformation of natural resources into an instrument of sovereignty. President Lula now explicitly links the development of oil and rare earths to national industrialization, rejecting what he presents as the historic colonial model of exporting raw minerals to reimport high-value-added manufactured goods. The government simultaneously defends oil exploration in the Equatorial Margin, seen as the next frontier after the pre-salt, with a Petrobras investment program through 2030.

For foreign industrial players, this stance has concrete consequences. Demanding local processing effectively means conditioning access to the resource. Investors will have to contend with on-site processing and technology transfer requirements. It is not an export ban, but it is a soft version of one: raw material will circulate, provided part of the value stays in Brazil.

This choice rests on real strengths. The country is seen as well positioned to become a hub for data centers thanks to its clean energy, critical minerals, and a technologically savvy population, while its fintech ecosystem serves as a laboratory for consumer AI applications. Morgan Stanley, through co-president Daniel Simkowitz, sees it as a potential beneficiary of "enormous" AI demand over the next decade, despite persistent fiscal difficulties.

Mexico and India: Positioning on the New Map

Other countries are seeking to capture displaced flows. Mexico has a major geographic and industrial asset: its integration into the North American space and its manufacturing capacity. Yet it must still guarantee the energy, connectivity, and legal certainty indispensable to investors, conditions without which near-shoring will remain theoretical.

India, for its part, is mobilizing its production-linked incentive (PLI) programs and the India Semiconductor Mission to strengthen its industry's resilience. Hisashi Takeuchi, managing director of Maruti Suzuki India, called on manufacturers to leverage these localization schemes, while warning of a new risk: the growing digitalization of automobiles exposes factories to cyberattacks, as shown by production halts suffered by Jaguar Land Rover and Suzuki Motorcycle India. Securing supply chains is no longer only about materials, but also about systems.

China Accelerates Its March Toward Self-Sufficiency

Faced with constraints on access to foreign technology, China is responding by intensifying domestic substitution. Electric vehicle manufacturers, starting with global leader BYD, are increasing the integration of locally produced semiconductors. The automotive sector, a major consumer of chips, is thus becoming a lever for national autonomy: every order placed with a Chinese supplier reduces dependence on circuits that could be cut off.

Memory is another battleground where this strategy is bearing fruit. China's leading DRAM manufacturer, CXMT, posted a 1,688% jump in profit amid a global memory shortage, ahead of a planned initial public offering. The rise of AI is clearly accelerating Beijing's self-sufficiency efforts. In the AI chip segment, competition between Nvidia and Huawei in the Chinese market reflects the same movement.

This fervor nonetheless has its excesses. Struggling real estate developers are diversifying into semiconductor production, triggering retail investor enthusiasm that is sometimes disconnected from fundamentals. The case of Metro Land, whose stock surged after announcing a stake in a chipmaker before retreating under scrutiny from the Shanghai Stock Exchange over financial losses, illustrates the bubble risk. Governance also raises questions: at Maxone Semiconductor Suzhou, the transfer by chairman Zhou Ming of 10.86% of issued shares to his ex-wife, a movement of assets worth 6 billion yuan, alarmed tens of thousands of individual shareholders less than a year after the IPO.

Production Costs Under Pressure

Metals, the Leading Source of Tension

The fragmentation of supply chains comes amid an already high-price environment. As of August 1, 2026, benchmark industrial metal quotations painted a tense picture: copper stood at ?,326, tin at ?,385, nickel at ?,751, zinc at ?,875, aluminum at ?,251, and lead at ?,855, while iron ore traded at ?.30.

These levels are far from trivial for electronics. Copper feeds interconnections, data centers, and the power grids that supply them; tin is indispensable for soldering boards and components; aluminum goes into casings, cooling systems, and infrastructure. As data centers multiply at the pace imposed by AI, demand for base metals adds to that for rare earths, and any supply disruption amplifies volatility.

Energy and Rates: The Cost of Capital Grows Heavier

On top of the materials bill comes the cost of energy and financing. Oil held above ? a barrel, fueling inflation concerns, while US Treasury yields exceeded 5%. The Federal Reserve carried out its first rate hike in more than three years, in a tightening move shared by other central banks facing inflation aggravated by geopolitical conflicts.

For an industry as capital-intensive as semiconductors, this rise in credit costs weighs directly on the construction of new plants and on mining diversification projects. Reshoring initiatives, already more costly by nature than yesterday's optimized chains, are becoming harder to finance. Geopolitics also weighs through other channels: the prospect of new US sanctions targeting countries maintaining trade ties with Iran contributed to market nervousness, and optimism sparked by a possible agreement between Washington and Tehran and the reopening of the Strait of Hormuz propelled the Nikkei beyond 65,000 points, driven by semiconductor stocks.

Giants Reconfigure Their Value Chains

Manufacturing Capacity, the New Scarce Currency

In a constrained world, securing production capacity becomes as strategic as designing a good product. The case of Arm Holdings is illuminating. Historically a licensor, the group is moving into selling complete chips with its AGI CPU processor for data centers, with a revenue target of ? billion. Its CEO, Rene Haas, expresses increased confidence between May and September 2026, mainly thanks to better visibility on supply, which had until then been his main concern. In a sector where competition for manufacturing capacity is intense, that visibility is worth almost as much as demand.

Custom Chips as a Cost-Cutting Weapon

Large buyers are also seeking to reduce their dependence on dominant suppliers. The agreement between Marvell Technology and Google, which allows the latter to acquire up to ?.2 billion of Marvell shares by fiscal 2033, fits this logic: it covers custom chips for AI workloads, including inference accelerators and products for Google's TPU ecosystem. Along with Amazon, Meta, and Microsoft, Google is seeking to develop cheaper custom silicon to limit its dependence on Nvidia. Verticalization is becoming a response to price tensions as much as to disruption risks.

The automotive industry is following the same path. Stellantis is expanding its partnership with Qualcomm Technologies to integrate Snapdragon Digital Chassis solutions into its STLA Brain platform, including the Snapdragon Ride Pilot driver-assistance platform. Further upstream, Broadcom, Meta, Applied Materials, GlobalFoundries, and Synopsys are launching a semiconductor research center at UCLA, with a five-year commitment, to accelerate innovation and train the workforce. The chip battle is also a battle for skills.

Asia and Europe: Markets That Reveal the Imbalances

South Korea sits at the heart of this tension. Samsung Electronics saw its quarterly profit multiply by 19, yet still did not greatly exceed expectations, triggering profit-taking even in the European sector, starting with BE Semiconductor Industries, despite Oddo BHF's reaffirmed support for the adoption of hybrid bonding. Labor conflict also reminded markets of capacity fragility: Samsung's stock rose 6% after a strike was suspended following a provisional wage agreement reached with government mediation. The AI chip boom is also creating unprecedented pay gaps in the country, with sector employees' bonuses pushing other prestigious professions into the background.

Financially, the asymmetry between the United States and Asia is widening. Companies in the Philadelphia Semiconductor Index (SOX) trade at valuations more than twice those of their Asian peers. Citigroup accordingly anticipates a wave of Asian technology group listings on Wall Street via American depositary receipts. Paradoxically, even as physical chains fragment, capital continues to converge on New York. In Europe, the STOXX 600 hit a record, driven by stocks such as Aixtron, Soitec, and BE Semiconductor, as investors seek more moderate valuations than across the Atlantic.

Outlook: Toward a More Expensive but More Redundant Value Chain

The trajectory taking shape is that of a more redundant industrial system, but structurally more costly. Three dynamics deserve particular attention in the coming months.

The first concerns the speed at which alternative rare earth supply chains mature. Projects like Uberaba or the separation work led by USA Rare Earth, Pasqal, and Riven Systems will not produce massive effects for several years. Until then, dependence on Asian processing will remain a major geopolitical lever.

The second relates to the spread of resource nationalism. If the Brazilian doctrine of local processing sets a precedent, particularly in countries like Tanzania that are assessing their new deposits, industrial players will have to invest where the minerals are rather than import them to their existing plants. Trade routes will be durably reorganized as a result.

The third is financial: with oil above ?, bond yields above 5%, and industrial metals at high levels, the cost of resilience could slow some reshoring projects. The ability of players to arbitrate between supply security and competitiveness will determine the winners of the decade.

The chip war is therefore no longer just a matter of nanometers. It is playing out in the mines of Njombe, the phosphogypsum tailings of Minas Gerais, the automated extraction chemistry laboratories, and the trading rooms where capacity contracts are decided. Those who master both the resource, its processing, and access to factories will hold an advantage that technological excellence alone can no longer guarantee.

This article was written with the assistance of artificial intelligence and verified by our editorial team.