# Who are Photronics's customers? Who does Photronics earn revenue from?
Canonical: https://valuechain.wiki/photronics · Facet: customers · Updated: 2026-07-12T04:04:25.875+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Photronics's confirmed revenue counterparties include TSMC, 삼성전자, Intel plus 1 undisclosed/aggregate relationship. Per the valuechain.wiki graph: 4 revenue edges, backed by 4 dated sources, 1 of them primary filings (as of 2026-07-12).

### TSMC (high)  → /tsmc.md
- note: Supplies photomasks to TSMC.
- [confirms] SEC EDGAR (EN, filing, published 2025-12-01) https://www.sec.gov/Archives/edgar/data/810136/000114036125045083/ef20060918_ex99-1.htm: "Supplies photomasks to TSMC."

### 삼성전자 (high)  → /samsung-electronics.md
- note: Supplies photomasks to Samsung.
- [confirms] SEC EDGAR (EN, filing, published 2025-12-01) https://www.sec.gov/Archives/edgar/data/810136/000114036125045083/ef20060918_ex99-1.htm: "Supplies photomasks to Samsung."
- [confirms] TheElec (KO, news, published 2025-06-01) https://www.thelec.kr/news/articleView.html?idxno=35871: "Samsung weighs outsourcing memory photomasks to Photronics PKL."

### 파운드리·IDM (포토마스크) (mid)
- metric: Market share 50% · FY2023~2025 · top-5 customers combined (10-K)
- note: Supplies IC photomasks to foundries/IDMs (~675 customers).
- [confirms] StockTitan (10-K) (EN, news, published 2025-12-10) https://www.stocktitan.net/sec-filings/PLAB/10-k-photronics-inc-files-annual-report-a845892b173f.html: "The five largest customers represented about 50% of revenue in 2025, 2024, and 2023."
- [confirms] SEC EDGAR (EN, filing, published 2025-12-01) https://www.sec.gov/Archives/edgar/data/810136/000114036125045083/ef20060918_ex99-1.htm: "Masks are essential to lithography; foundries/IDMs broadly are customers."
- [confirms] ETNews (KO, news, published 2022-11-07) https://www.etnews.com/20221107000200: "Masks are essential to lithography; foundries/IDMs broadly are customers."

### Intel (mid)  → /intel.md
- note: Supplies photomasks to Intel.
- [confirms] SEC EDGAR (EN, filing, published 2025-12-01) https://www.sec.gov/Archives/edgar/data/810136/000114036125045083/ef20060918_ex99-1.htm: "Supplies photomasks to Intel."

Reverse side: https://valuechain.wiki/photronics/suppliers.md · Ripple: https://valuechain.wiki/photronics/ripple.md

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Full node: https://valuechain.wiki/photronics.md · JSON: https://valuechain.wiki/photronics.json