# Who are Carl Zeiss SMT's customers? Who does Carl Zeiss SMT earn revenue from?
Canonical: https://valuechain.wiki/carl-zeiss-smt · Facet: customers · Updated: 2026-07-12T05:45:12.448189+00:00 · Source: ValueChain.wiki (cited money-flow graph)

**Citable summary**: Carl Zeiss SMT's confirmed revenue counterparties include ASML plus 1 undisclosed/aggregate relationship. Per the valuechain.wiki graph: 2 revenue edges, backed by 4 dated sources, 0 of them primary filings (as of 2026-07-12).

### ASML (high)  → /asml.md
- note: Sole supplier of optics (mirrors) for ASML EUV scanners.
- [confirms] Wikipedia (EN, research, published 2026-01-01) https://en.wikipedia.org/wiki/Carl_Zeiss_SMT: "Carl Zeiss SMT supplies the key optical subsystem of ASML lithography."
- [confirms] Korea Economic Daily (KO, news, published 2022-07-31) https://www.hankyung.com/article/2022073164931: "Without Zeiss there is no ASML EUV; its mirrors are core to EUV reflection."
- [confirms] ASML (EN, ir, published 2016-11-03) https://www.asml.com/en/news/press-releases/2016/zeiss-and-asml-strengthen-partnership-for-next-generation-of-euv-lithography: "ASML took a 24.9% stake for €1B; 30-year EUV optics partner."

### ASML (high)  → /asml.md
- note: ASML owns 24.9% of Carl Zeiss SMT (€1B).
- [confirms] ASML (EN, ir, published 2016-11-03) https://www.asml.com/en/news/press-releases/2016/zeiss-and-asml-strengthen-partnership-for-next-generation-of-euv-lithography: "ASML owns 24.9% of Carl Zeiss SMT (€1B)."

### 파운드리·마스크샵 (검사·계측 광학) (low)
- note: Supplies mask inspection/metrology optics to foundries and mask shops.
- [confirms] ZEISS SMT (EN, ir, published 2026-01-01) https://www.zeiss.com/semiconductor-manufacturing-technology/products/photomask-solutions.html: "Beyond EUV lithography optics, ZEISS SMT officially offers a mask qualification/metrology line (AIMS, the 30-year industry standard, incl. AIMS EUV; PROVE image-placement metrology) - specific foundry/maskshop customers anonymous."

Reverse side: https://valuechain.wiki/carl-zeiss-smt/suppliers.md · Ripple: https://valuechain.wiki/carl-zeiss-smt/ripple.md

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Full node: https://valuechain.wiki/carl-zeiss-smt.md · JSON: https://valuechain.wiki/carl-zeiss-smt.json