AXT and Lumentum Signed Wafer Supply Agreement
The companies entered a long-term capacity reservation deal for Indium Phosphide wafer substrates.
Updated on Oct. 7, 2026 in Semiconductors

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AXT and Lumentum have finalized a binding capacity reservation agreement for Indium Phosphide wafer substrates. The deal includes two $43.5 million deposits totaling $87 million from Lumentum to secure supply.
Why it matters
The agreement ensures Lumentum has guaranteed access to specialized substrate materials through the end of 2031. It also provides AXT with significant upfront capital to support necessary production capacity.
Lumentum will provide two $43.5 million deposits, totaling $87 million, which will be applied as shipment credits. The agreement mandates that AXT reserves minimum annual product capacity throughout the six-year commitment.
The players
AXT
AXT is a manufacturer of compound semiconductor wafer substrates used in various high-performance electronic devices.
Lumentum
Lumentum is a designer and manufacturer of optical and photonic products that are essential to telecommunications and sensing infrastructure.
The details
Under the terms of the agreement, AXT is required to maintain minimum annual product capacity and support additional requirements. Lumentum is held liable for any annual purchase shortfalls, while any failure by AXT to deliver the reserved capacity constitutes a material breach.
Timeline
December 31, 2031: The capacity reservation agreement term expires.
The Tech Race
This partnership reflects a broader industry shift toward securing long-term supply for Indium Phosphide wafer substrates, a critical component in advanced photonics. By locking in capacity through 2031, companies are insulating themselves against the volatility of the global semiconductor market.
For users and developers, this agreement supports the long-term viability of advanced optical hardware by ensuring a stable supply of necessary substrate materials. It minimizes potential bottlenecks in the manufacturing pipeline that could otherwise disrupt product availability.
The takeaway
Securing long-term production capacity through financial deposits is becoming a standard strategy for companies to mitigate supply chain risks. Businesses should anticipate similar capital-intensive agreements as demand for specialized semiconductor components continues to grow.
Further reading
For more context on how manufacturers are securing materials, read our latest updates on Semiconductors.
Source note: This article includes information reported by Metal.
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