Photoresists

The light-sensitive polymer that records the circuit pattern. Formulated per node and per tool, and made almost entirely in Japan.

Tier C: Not a Founder’s Game Yet High criticality

A trade-secret polymer chemistry held by five Japanese firms. The Indian opening is cold-chain logistics, not formulation.

What It Does

The light-sensitive coating a chip pattern is printed onto

A polymer coating that reacts to light and records the circuit pattern.
Made almost entirely in Japan, and a 2019 export dispute proved how tight that grip is.
India's opening: cold-chain storage and delivery, not the chemistry.

India Position

Import dependency: 100%
Made in India today: None
MSME entry capital: Not an MSME entry
Time to qualify: Over 30 months

Basis: No photoresist manufacturing exists in India as of August 2026; all grades are imported, overwhelmingly from Japan.

What Breaks, and Who Could Fix It

What breaks

Japanese producers hold the overwhelming majority of the market across every grade. The 2019 Japan-Korea export dispute demonstrated exactly how concentrated this is.

Who could fix it

A temperature-controlled bonded facility serving a fab’s resist inventory is a legitimate business, and it is logistics rather than chemistry.

Best and worst case

Best case if this breaks

i-line and KrF resists for mature nodes have more suppliers and are far less exotic than the leading-edge grades.

Worst case if this breaks

Resist has a short shelf life and a cold chain. It is one of the few inputs where a logistics failure destroys the material rather than merely delaying it.

Best case to fix it

No formulation route. The realistic Indian positions are cold-chain distribution and qualified local warehousing.

Worst case to fix it

Photoresist formulation is decades of accumulated polymer chemistry defended as trade secret. Chinese firms (Kempur, Red Avenue, Shanghai Xuhui, RedGem) have entered i-line and KrF at mature nodes over the last decade; nobody outside the incumbent five has reached leading-edge EUV.

Representative Suppliers

Listing a firm documents the market as we understand it. It is not an endorsement, a recommendation, or evidence of any commercial relationship.

Supplier	Origin	Scale	Confidence
JSR Corporation A leading photoresist supplier across nodes.	Japan	Large	Verified
Tokyo Ohka Kogyo	Japan	Mid	Verified
Shin-Etsu Chemical	Japan	Mega	Verified
Sumitomo Chemical	Japan	Large	Verified
Fujifilm Electronic Materials	Japan	Large	Verified
DuPont The main non-Japanese supplier of scale. Electronics business spun out as Qnity (late 2025).	United States	Mega	Reported

Price Context

US Producer Price Index: semiconductor manufacturing latest: 20.1 ▼ -6.8% YoY
India photoresist import unit value (HS 370790) latest: $5.72 ▼ -18.9% YoY

Reading Key

Every entry carries the same five figures, so two inputs anywhere in the chain can be compared directly. What each one is, and what it is not:

Import dependency: The share of Indian demand for this input that is met by imports today. A percentage is published only where we can state the basis for it, and the build rejects a figure that has none. “Not established” means no sourced figure exists yet, not that the figure is zero; for the domestic picture, read “Made in India today” instead.
Made in India today: How much of this input is actually produced in India: none, pilot scale, partial, or established. This is the field to read when import dependency is not established.
MSME entry capital: What it would plausibly cost an Indian MSME to enter this input at the smallest viable scale, in crore rupees. Plant and equipment only; it excludes working capital and the qualification cycle.
Time to qualify: How long from a working sample to a qualified first shipment, once the line exists. Qualification, not construction, is what usually decides whether an entry succeeds.
India readiness tier: Our verdict on whether an Indian founder can realistically enter this input, derived from the four figures above and stated as one of three tiers.

The three tiers

Tier A: Buildable Now: Under roughly Rs 5 crore of entry capital and 12 to 24 months to a qualified first shipment. A founder can start here.
Tier B: Partnership or Distribution: There is real money here, but not in manufacturing the thing. The opening is in stocking, distribution, purity uplift or a licensed partnership.
Tier C: Not Yet: Requires a joint venture, a technology licence, or a multinational’s balance sheet. Worth understanding, not worth starting.

Made in India today

None: No Indian production we can identify. Demand is met entirely from abroad.
Pilot scale: Made in India at laboratory, pilot-line or single-customer scale only.
Partial: Real Indian production exists, but it covers part of the range or part of the demand.
Established: Indian production is routine and qualified, at commercial volume.

Confidence

Confidence describes how well evidenced our listing is. It is not a rating of the supplier or of its products.

Verified: Checked against a primary source: the firm’s own filing, product documentation or announcement.
Reported: Consistently reported by trade press or industry analysts, but we have not seen the primary document ourselves.
Likely: A credible supplier for this input given their product range, though we have not confirmed that they actually supply it.
Directional: Included to show the shape of the market. Read it as an observation, not as a claim about this firm.

Scale

Scale is a bucket, not a revenue figure. We publish a band we can hold for years rather than a number that is stale in a quarter.

Mega: A global top-tier firm that effectively sets the price and the standard for this input.
Large: A major international supplier, usually with plants or sales in several regions.
Mid: An established specialist, often strong in one region or one product family.
Small: A niche or regional supplier. Frequently the realistic first partner for a new Indian entrant.