Introduction
The global EUV photoresists market is highly consolidated. A small group of suppliers, most of them headquartered in Japan, holds the large majority of qualified positions on EUV layers at the world's leading foundries, logic IDMs and DRAM makers. This structure results from the very high barriers to entry described by the market's technical requirements: EUV-specific chemistry, ultra-high-purity manufacturing, access to EUV exposure for development and testing, and long customer qualification cycles that favour suppliers with established track records. The concentration of demand among a few chipmakers reinforces consolidation, since each customer qualifies only a limited number of suppliers per layer and tends to retain them for the life of a node.
Competition in this market is fought primarily on technology, quality and service rather than on price. Suppliers compete to have their resists qualified on new layers at each node transition, each new DRAM generation and each step toward High-NA EUV, because a layer won at the start of a node is usually retained for its production life. The main competitive levers are resist performance on the resolution, roughness, sensitivity and defectivity trade-off; batch-to-batch consistency and contamination control; the ability to supply from multiple sites, including plants near customers; technical support embedded in customers' process teams; and partnerships that extend a supplier's capabilities into new chemistries or into integration with deposition, etch and purification technologies.
The basis of competition is shifting in three ways. First, metal oxide and dry-deposited resists are creating new competitive arenas in which positions are not yet settled, and in which intellectual property and partnerships matter as much as formulation skill. Second, equipment companies, led by Lam Research, have entered the market through dry resist, changing the boundary between materials and equipment. Third, customers' push for second sources and local supply is opening opportunities for challengers and specialists while requiring incumbents to invest heavily in new plants. Ownership is also changing, with Japan Investment Corporation taking JSR private in 2024 and Reuters reporting in November 2026 that JIC plans to sell JSR to Mitsui Chemicals.
Key Player Positioning
The leading companies in the market can be grouped into leaders, challengers and niche players according to their breadth of EUV resist products, the strength of their qualified positions at major customers, their regional manufacturing presence and their role in emerging chemistries. The grouping is qualitative and does not represent numeric market shares.
The leaders are JSR Corporation, Tokyo Ohka Kogyo (TOK) and Shin-Etsu Chemical. JSR combines a long-established chemically amplified resist business with the leading metal oxide resist platform through Inpria, which it acquired in 2021; it operates EUV resist development and production in Japan, Belgium, the United States and South Korea, completed its dedicated MOR plant in Ochang on 30 September 2026, and is establishing production in Taiwan through a joint venture. Its cross-licensing agreements with Lam Research (2025) and Entegris (2026) position it at the centre of the MOR and dry resist ecosystem. TOK is one of the most broadly qualified EUV resist suppliers, with production in Japan, Taiwan and South Korea, a new photoresist manufacturing building at Koriyama due to start operation in the second half of 2026, a new plant under construction in Pyeongtaek, and a strategic investment in Irresistible Materials to extend its chemistry portfolio. Shin-Etsu Chemical brings an integrated lithography materials business, including EUV resists, multilayer materials and photomask blanks, with production in Japan and Taiwan and a major new base under construction in Gunma Prefecture. All three hold long-standing positions on critical layers at the leading chipmakers.
The challengers are Fujifilm, Sumitomo Chemical, Qnity Electronics and Lam Research. Fujifilm, a leader in ArF negative-tone imaging, entered EUV resist sales in October 2024 with negative-tone EUV resists and a dedicated developer and has expanded production and quality evaluation in Japan and South Korea. Sumitomo Chemical, a major ArF resist supplier, sells EUV resists from its Osaka Works, plans EUV production in South Korea and is developing next-generation organic molecular resists. Qnity, independent from DuPont since November 2025, offers a broad electronics materials portfolio including lithography materials, with production in South Korea and elsewhere. Lam Research competes through a different model, with its Aether dry resist platform selected as the production tool of record for advanced DRAM in January 2025 and a five-year High-NA collaboration with IBM. Each challenger has strong technology and customer relationships but a narrower set of qualified EUV positions than the leaders.
The niche players are Merck KGaA, Dongjin Semichem and Irresistible Materials. Merck's electronics business is a major supplier of patterning materials and focuses on EUV ancillaries such as rinse and underlayer products, alongside resist development and PFAS-alternative research. Dongjin Semichem is South Korea's leading domestic photoresist producer and was the first Korean company to supply EUV resist to a production layer at Samsung, with a role tied closely to Korean localisation policy and to Samsung's U.S. expansion. Irresistible Materials is a UK developer of the Multi-Trigger Resist platform for low-NA and High-NA EUV, now backed by TOK. These companies have specialised positions or technologies but limited volume on EUV production layers.
Competitor Dashboard
The ratings reflect the grouping of companies. The leaders score highest on product portfolio and industry experience, reflecting their broad, long-qualified EUV resist ranges, while JSR's alliances with Lam Research, Entegris, imec and Applied Materials give it the highest rating on partnerships. Lam Research's high alliance and regional presence ratings reflect its global equipment service network and its collaborations with JSR, IBM and research institutes, while its product portfolio rating reflects a focus on dry resist alone. Niche players score lower on portfolio and presence but can hold important technology or regional positions.
Porter's Five Forces framework is used here to assess the structural attractiveness of the EUV photoresists market for suppliers. The market's small customer base, demanding technical requirements and long qualification cycles produce a structure that differs markedly from that of commodity chemicals: barriers to entry are very high and substitution risk is limited, but customers hold significant bargaining power and competition among the few qualified suppliers is intense on each new node. The analysis treats the market as a whole, but the balance of forces differs somewhat by segment: chemically amplified resists for mature EUV nodes face stronger buyer pressure and more competition from second sources, while metal oxide and dry-deposited resists for the newest layers are supplied by fewer companies and are protected by patents and by the scarcity of production-ready alternatives.
The threat of new entrants is rated Low. A new supplier must develop resist chemistry that meets EUV requirements for resolution, roughness, sensitivity and stochastic defectivity, which requires sustained research spending, specialised synthetic capability and regular access to EUV exposure tools that cost well over US$150 million each or to shared facilities with limited capacity. It must then build manufacturing capable of producing material with trace metal levels in the parts-per-trillion range and with lot-to-lot consistency that chipmakers can rely on, and it must pass customer qualification on specific layers, a process that can take a year or more and that customers are reluctant to start without evidence of prior success. Patents covering key chemistries, including the metal oxide resist portfolio built by Inpria since 2007, add a further barrier, although recent cross-licensing agreements have reduced litigation risk for some players. The few entrants that have progressed, such as Dongjin Semichem in South Korea and Irresistible Materials in the United Kingdom, have done so with strong support from a domestic customer, government policy or a strategic investor, rather than purely on their own.
Dry resist represents a different form of entry, in which an equipment company enters the market through its tools, but this route is open only to firms with established positions in deposition and etch equipment. Government policy could raise the threat of entry in specific countries. South Korea's support for domestic materials suppliers since 2019, China's push to localise photoresist supply and the incentives available under industrial policies in the United States, Japan and India all lower the cost of entry for locally based firms. However, these measures address capital and market access rather than the core technical barriers, and the evidence to date is that policy-supported entrants gain production positions slowly, starting with less critical layers. Acquisitions provide another route: a company outside the market can enter by buying an established resist maker, as Mitsui Chemicals was reported in November 2026 to be planning with JSR, but such transactions change ownership without adding a new supplier. Overall, the barriers are high enough that the number of suppliers with meaningful production positions is unlikely to increase significantly within the forecast period.
The bargaining power of suppliers is rated Medium. Resist producers depend on a limited number of qualified sources for photoacid generators, specialty monomers, high-purity solvents, tin and other metal-organic precursors, filtration media and high-purity containers. Switching an input supplier requires internal qualification and often notification to, and approval by, customers, which gives incumbent input suppliers a degree of leverage. Some specialty inputs are produced by only one or two companies worldwide, and the move to metal oxide and dry resists is creating new dependencies on metal precursor producers whose capacity is still being built. Against this, the largest resist makers have considerable purchasing power, long-standing relationships with their suppliers and, in many cases, in-house capability to synthesise critical components. The volumes involved are small relative to the input suppliers' total business, which limits the pressure either side can apply, and the shared interest in maintaining qualified positions encourages long-term cooperation rather than confrontation. Supplier power is therefore meaningful for specific critical inputs but does not dominate the economics of the market. Equipment and service suppliers form a second group whose influence is worth noting.
ASML is the sole supplier of EUV scanners, and resist makers depend on access to its tools, either directly or through research institutes, to develop and test their products. Track makers, whose coat-and-develop systems process every EUV wafer, influence how resists are dispensed, baked and developed and must adapt their hardware for new chemistries such as metal oxide resists. Filter and container suppliers determine the final purity of the product. None of these suppliers sells inputs in the conventional sense, but each controls a capability without which a resist cannot be developed or delivered, and resist makers must align their roadmaps with them. This dependence adds to supplier power in a qualitative sense, reinforcing the Medium rating.
The bargaining power of buyers is rated High. The customer base for EUV resists is very concentrated: a small number of foundries, one major logic IDM and three major DRAM producers account for nearly all volume demand, and the largest individual chipmakers account for a substantial share of the market on their own. These customers set the specifications, control qualification and decide which suppliers are used on each layer. They have deep technical knowledge of resist performance and can compare suppliers directly on their own tools. Increasingly, they insist on second sources, multi-site supply and local production, and they use the prospect of qualification on new nodes as leverage in commercial negotiations. Their power is tempered by the high cost of switching once a resist has been qualified on a production layer and by the small share of resist in total wafer cost, which means that chipmakers prioritise performance and reliability over price. Nonetheless, the combination of concentration, technical expertise and control over qualification gives buyers the strongest position in the market's structure. Buyer power is exercised in ways that go beyond price.
Chipmakers require suppliers to disclose detailed information about raw materials and production processes, to maintain quality systems aligned with automotive and data-centre reliability standards, to hold inventory near the fab and to build capacity in the chipmaker's preferred locations, often at the supplier's own expense. They can also shape the direction of resist development by choosing which chemistries to evaluate and by sharing or withholding process data. In some cases, chipmakers co-develop resist formulations with suppliers and retain rights over the resulting process knowledge. The growing concentration of leading-edge production at a few companies, particularly in foundry logic, has strengthened this position over time, and the addition of new fabs in new countries has increased chipmakers' ability to demand local investment from suppliers as a condition of continued business.
The threat of substitutes is rated Low. Within the scope of this market, alternative resist chemistries such as metal oxide and dry-deposited resists are part of the market rather than substitutes for it. Genuine substitutes would be patterning approaches that avoid EUV lithography altogether. DUV immersion lithography with multiple patterning can achieve dimensions similar to single-exposure EUV on some layers, and it remains the only option for chipmakers without EUV access, such as those in China, but at leading-edge production sites it is more expensive, slower and less precise for the most critical layers and is being displaced by EUV rather than the reverse. Nanoimprint lithography, directed self-assembly and electron-beam direct writing are used or studied for specific applications but are not expected to replace EUV for high-volume logic or DRAM patterning within the forecast period. Because every EUV exposure requires a resist, substitution risk for the market depends on substitution of EUV lithography itself, which is low as long as leading-edge scaling continues. Two longer-term developments could change this assessment beyond the forecast period.
Three-dimensional DRAM architectures, now under development at all major memory makers, would shift part of the patterning burden from lithography to deposition and etch, potentially reducing the number of EUV layers per bit compared with continued planar scaling. In logic, increasing use of advanced packaging and chiplets allows some functions to be built on less advanced nodes, which reduces the share of total silicon processed at the leading edge, although the most performance-critical dies continue to require EUV. Neither development is expected to reduce demand for EUV resists within 2026–2032, since they remain at early stages and since the leading-edge dies at the heart of AI systems continue to move to more EUV-intensive nodes. The threat of substitutes therefore remains low for the forecast period.
The intensity of competitive rivalry is rated High. Although the number of qualified suppliers is small, competition among them is intense and centres on winning and defending qualified positions on each new node and layer. Every node transition, every new DRAM generation and every move to High-NA EUV reopens competition for the layers involved, and the supplier that wins a layer typically retains it for the life of the node. Suppliers therefore compete through heavy investment in research, EUV testing capacity, local manufacturing and technical service, and through partnerships that give them advantages in emerging chemistries. The entry of equipment companies through dry resist and the growing role of challengers such as Fujifilm, Sumitomo Chemical, Qnity and Korean domestic suppliers have widened the field. Price competition is moderated by the importance of performance and reliability, but chipmakers' second-sourcing strategies and the threat of losing a layer at requalification keep pressure on suppliers to improve performance and service continuously. Consolidation pressures are also visible, with Reuters reporting in November 2026 that Japan Investment Corporation plans to sell JSR to Mitsui Chemicals in a transaction that could exceed 1.3 trillion yen. Rivalry also has a geographic dimension.
Suppliers compete not only for layers but for positions at new fabs in new countries, where the first qualified local source has a lasting advantage, and this has triggered a wave of plant investments in South Korea, Taiwan and Japan since 2024. Rivalry among the leading Japanese suppliers is long-standing, and each has particular strengths: JSR in metal oxide resists through Inpria, TOK in breadth of customer relationships and local production, and Shin-Etsu in integrated lithography materials including photomask blanks. Because these strengths differ, competition tends to be layer-specific rather than across the board, and it is most intense where several suppliers can meet the same specification. The result is a market in which positions shift gradually with each technology transition rather than suddenly.
Taken together, the five forces describe a market in which established suppliers enjoy strong protection from new entrants and substitutes, but in which value capture is constrained by the power of a small group of sophisticated customers and by continuous competition for qualification at each technology transition. Profitability depends on maintaining technical leadership on the layers that matter most to customers and on matching their geographic expansion. Over the forecast period, the balance of forces is expected to remain broadly stable, with two possible shifts: buyer power may increase further as chipmakers formalise second-sourcing and multi-site requirements, while supplier power may rise for metal precursors and dry resist chemistry if adoption of these materials outpaces the build-out of qualified supply. Consolidation among resist makers, if it proceeds, would reduce the number of independent suppliers but would not by itself lower the barriers facing new entrants. Table 5.1 summarises the rating and the key reason for each force.
Threat of New Entrants: Low; EUV-specific chemistry, ultra-high-purity manufacturing, access to EUV exposure and lengthy customer qualification create very high entry barriers.
Bargaining Power of Suppliers: Medium; Few qualified sources for photoacid generators, monomers and metal precursors, offset by the scale and in-house capability of leading resist makers.
Bargaining Power of Buyers: High; A small number of foundries, logic IDMs and DRAM makers control specifications, qualification and second-sourcing decisions.
Threat of Substitutes: Low; Every EUV exposure requires a resist; DUV multiple patterning and other patterning methods are not viable replacements at the leading edge.
Competitive Rivalry: High; Few suppliers compete intensely for qualified positions at each node, DRAM generation and High-NA transition.
