# AXT signs long-term supply agreement with Lumentum for indium phosphide substrates

AXT, Inc. entered into a definitive agreement with Lumentum Operations, LLC for the supply and capacity reservation of indium phosphide wafer substrates through December 31, 2031. Lumentum will pay an initial deposit of $43.5 million and a second deposit of $43.5 million.

- Type: Contract
- Announced: 2018-05-25
- Value: $87.0M
- Status: announced
- Products: indium phosphide wafer substrates
- Sectors: [Semiconductors and Industrial Electronics](https://endata.com/sectors/semiconductors-electronics.md)

## Companies

- [AXT](https://endata.com/companies/26877.md) (supplier)
- [Lumentum Operations, LLC](https://endata.com/companies/32114.md) (customer)

## Sources

- [business.sherbrookerecord.com](https://business.sherbrookerecord.com/sherbrookerecord/article/bizwire-2026-7-29-axt-inc-announces-long-term-supplier-agreement-with-lumentum), 2018-05-25: "We are very pleased to announce an agreement with Lumentum and to be a key supplier to their indium phosphide requirements over the coming years."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.