Photoresists and Photoresist Ancillaries Market to Add USD 2.2 Billion by 2033 as Advanced Lithography, Ancillary Chemistry and Supply Localization Reprioritize Semiconductor Materials Spending

NEW YORK, April 11, 2026 - The Photoresists and Photoresist Ancillaries Market is moving into a more strategic phase. Based on the forecast data supplied for this release, the market is projected to grow from USD 4.5 billion in 2026 to USD 6.7 billion by 2033. The market spans photoresists across g-line and i-line, KrF, ArF dry and ArF immersion, alongside photoresist ancillaries such as antireflective coatings, developers and edge bead removers. By application, the opportunity remains anchored in semiconductors and integrated circuits, with printed circuit boards providing a second major demand base. By region, the market covers North America, Latin America, Europe and Asia Pacific.

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What is changing is not only the size of the market, but the quality of demand entering it. SEMI expects 18 new semiconductor fabs to begin construction in 2025, with total industry capacity projected to reach 33.6 million wafers per month that year. Advanced nodes at 7nm and below are expected to grow 16% to 2.2 million wafers per month, while worldwide 300mm fab equipment spending is forecast to rise to USD 133 billion in 2026 and USD 151 billion in 2027. In parallel, WSTS forecasts the global semiconductor market to reach roughly USD 975 billion in 2026. That combination is turning lithography materials into a more strategic line item for capital planners, operations leaders and procurement teams.

This is no longer a market defined by resist volume alone. It is increasingly defined by qualification depth, process-window stability, defect control, and the ability to supply full patterning stacks reliably across regions. Current supplier portfolios make that clear. Qnity now markets a comprehensive lithography suite that runs from g-line and i-line through KrF, ArF and EUV, together with overcoats, functional sublayers and ancillary lithography materials. Merck's patterning portfolio similarly spans photoresists, BARC and TARC materials, ArF rinse, spin-on carbon, DSA and EUV rinse. JSR continues to position its lithography business around photoresists from i-line to EUV and a range of multilayer materials.

That shift matters because ancillary materials are no longer treated as secondary chemistry. In high-performance manufacturing, they directly influence line collapse, critical dimension control, etch transfer, stochastic defectivity and overall yield. The strongest suppliers are therefore selling complete patterning capability rather than isolated product categories. In commercial terms, the market is moving from single-SKU competition toward integrated account control across photoresists, coatings, developers, sublayers and process support materials.

Regionally, Asia Pacific remains the operating center of gravity, but North America and Europe are gaining strategic weight as localization and supply-chain resilience move higher on executive agendas. The near-term effect is a broader qualification map rather than a simple geographic demand shift. Suppliers that can pair strong chemistry with regional manufacturing footprints and faster technical support are likely to win disproportionate share as customers reduce concentration risk and tighten approved-vendor lists.

Because ownership structures have evolved, the company profiles below focus on the operating entities that currently control the most relevant product lines and strategic moves in the market, including Merck's AZ platform and DuPont's former Electronics business, which now operates as Qnity.

Tokyo Ohka Kogyo: cross-border M&A backed by capacity expansion

Tokyo Ohka Kogyo has been one of the clearest examples of how photoresist suppliers are repositioning for a more distributed and application-diverse market. In February 2025, TOK acquired Berlin-based micro resist technology GmbH, adding a company with capabilities in photoresists and related materials for optical components, sensors, micro-optics, AR/VR, biosensors and microfluidic devices. The move gives TOK a stronger European foothold and expands its reach beyond conventional wafer lithography into adjacent precision-patterning applications. In September 2025, TOK also joined the JOINT3 consortium, a 27-company initiative focused on next-generation semiconductor packaging and panel-level organic interposers. Together, those steps show a supplier extending its value proposition from core photoresist chemistry into future packaging and specialty-device ecosystems.

On the manufacturing side, TOK is scaling with intent. Its Koriyama expansion, scheduled to begin operations in the second half of 2026, carries planned investment of more than 20 billion yen and is described by the company as the largest photoresist manufacturing facility in Japan. TOK also approved approximately 12.0 billion yen for Phase 1 of a new Pyeongtaek plant in South Korea and, in March 2026, purchased a second Koriyama site of roughly 90,794 square meters for about 1.5 billion yen. For senior decision-makers, the message is clear: TOK is investing simultaneously in M&A, Japanese production depth and Korean regional supply assurance.

JSR: ownership reset, AI-enabled R&D and high-NA collaboration

JSR remains a pivotal supplier because it combines a broad lithography portfolio with a more aggressive technology-development model than many peers. The company states that its electronic materials business offers photoresists from i-line to EUV, as well as multilayer materials used across advanced semiconductor manufacturing. In February 2025, JSR also disclosed work on E2T, a machine-learning method designed for extrapolative prediction in materials science, with results published in Communications Materials. That matters because future resist leadership will depend not only on formulation experience, but also on how quickly suppliers can discover, model and qualify new materials under tighter development cycles.

JSR's ownership transition also deserves attention. The tender offer by JICC-02, a company under Japan Investment Corporation, was completed in April 2024, marking one of the sector's most important control transactions. JSR then used 2025 to intensify strategic collaborations rather than slow down. In September 2025, JSR/Inpria and Lam Research entered a cross-licensing and collaboration agreement focused on dry resist for EUV lithography, metal oxide resists, high-NA EUV patterning and next-generation films. In November 2025, JSR and IBM launched a joint research program to build AI tools and data platforms for materials development. The profile that emerges is of a company using ownership restructuring to accelerate collaboration, AI-driven discovery and leading-edge patterning relevance.

Merck / AZ platform: sustainability-led formulation work with deeper infrastructure

For the AZ Electronic Materials franchise, the operating reality is now Merck's patterning business. Merck completed the acquisition of AZ Electronic Materials in 2014, and the current portfolio still carries the AZ brand in active lithography offerings such as AZ® NLOF® and pLOF lift-off resists. More broadly, Merck's present patterning lineup covers photoresists, BARC and TARC, ArF rinse, spin-on carbon, DSA and EUV rinse. That continuity is important because it shows how legacy product franchises are being retained while the surrounding platform becomes much more technology- and service-intensive.

Merck's more recent actions are equally relevant. In December 2024, the company committed more than €70 million to a new Advanced Materials Development Center in Shizuoka, lifting total investment at the site to over €120 million since 2021. Merck said the facility would support advanced patterning, EUV and DSA-related work, with a strong emphasis on sustainable semiconductor materials. In its 2025 annual report, the company said it had completed development of PFAS-free i-Line and KrF photoresists and had already started sampling those materials with customers. Merck also completed the €155 million acquisition of Unity-SC in October 2024, adding metrology and inspection capability relevant to heterogeneous integration and AI-era chip production. For the market, that is a meaningful combination: chemistry, sustainability, metrology and scale in one platform.

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Qnity / former DuPont Electronics: fast product launch cadence with new capital deployment

Legacy market maps still often point to Dow and DuPont heritage, but the operating business now shaping this part of the market is Qnity Electronics, separated from DuPont in November 2025. The company entered the market as a pure-play electronics materials business, and its current lithography offering spans g-line, i-line, KrF, ArF and EUV photoresists, plus overcoats, functional sublayers and ancillary lithography materials. It also remains highly relevant in packaging and PCB imaging through liquid bump-plating photoresists and the long-established Riston dry film franchise. That breadth is commercially important because it allows one supplier relationship to touch front-end lithography, advanced packaging and PCB process steps.

Qnity has also been unusually direct in its launch and investment cadence. In February 2026, it introduced the Eon EUV photoresist family for advanced-node patterning. In March 2026, it expanded non-fluorine product offerings for KrF and ArF immersion lithography, building on UV 26GNF, which had already won a 2025 R&D 100 Award. On the manufacturing side, DuPont had nearly doubled photoresist production capacity at Sasakami in Japan in 2024, and Qnity followed that with a USD 61.5 million research and manufacturing facility in Taiwan announced in March 2026. This is one of the stronger examples in the market of a supplier aligning new product launches, sustainability positioning and Asia-based capacity in a single operating plan.

Taken together, the competitive pattern is becoming easier to read. Growth is moving toward high-value formulations, not just broader resist consumption. Ancillary materials are gaining strategic weight because yield losses increasingly arise from full patterning stacks, not from base resist performance alone. And regional manufacturing footprints are turning into commercial differentiators, not just operational safeguards. The companies making the strongest moves are the ones investing across chemistry, packaging adjacency, AI-enabled development, PFAS transition and local manufacturing simultaneously.

The Photoresists and Photoresist Ancillaries Market should no longer be treated as a background chemicals category. It is becoming a strategic enabling layer of semiconductor scaling, advanced packaging performance and PCB precision manufacturing. The companies that secure the best position over the next cycle will be those that make earlier decisions on supplier qualification, regional sourcing, technical collaboration and sustainability transition. In a market projected to reach USD 6.7 billion by 2033 based on the forecast inputs used for this release, precision materials are moving materially closer to board-level relevance.

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This release was published on openPR.