Nanjing-Based Casela to Buy $25.4m of InP Wafers From AXT’s Tongmei During 2027

Why It Matters

The contract secures a sizable supply of high‑performance InP wafers for China’s photonics market and strengthens AXT’s revenue stream amid growing demand for 5G and data‑center optics.

Key Takeaways

• Casela commits to buy $25.4 m of InP wafers in 2027.
• Purchase requires 50% pre‑payment within 15 days of signing.
• Minimum purchase threshold set at 80% of agreed quantity.
• Cancellation or breach allows Tongmei to retain all prepaid funds.
• Excess demand will be prioritized if capacity permits.

Pulse Analysis

The indium phosphide (InP) wafer market is a critical enabler for high‑speed optical components used in 5G infrastructure, data‑center interconnects, and emerging lidar systems. By locking in a $25.4 million purchase, Casela positions itself to meet the accelerating demand for photonic integrated circuits in China, where domestic manufacturers are seeking alternatives to imported substrates. The agreement also reflects a broader shift toward securing localized supply chains for advanced semiconductor materials, reducing exposure to geopolitical tensions and export controls.

AXT’s subsidiary Beijing Tongmei Xtal Technology gains a guaranteed revenue stream and efficient capacity utilization through the long‑term arrangement. The contract’s financial structure—50 % upfront payment and a strict 80 % minimum purchase clause—mitigates credit risk while incentivizing Casela to maintain steady demand. Penalties for cancellation or delayed payment give Tongmei leverage to enforce compliance, a common practice in high‑value substrate deals where fab capacity is scarce and production scheduling is complex.

For the wider industry, the deal signals confidence in the growth trajectory of InP‑based photonics and underscores the strategic importance of Chinese firms in the global supply chain. AXT’s ability to allocate priority capacity to a single customer may prompt competitors to pursue similar exclusive agreements, potentially reshaping market dynamics. As data traffic continues to surge, securing reliable sources of InP wafers will be a decisive factor for companies aiming to stay competitive in the fast‑evolving optoelectronics arena.