What's Happening?
China's control over the export of indium phosphide (InP), a critical material for high-speed optical chips used in AI data centers, is causing significant disruptions in the global supply chain. Since China introduced export restrictions on InP in February
2025, the price of a 6-inch InP wafer has surged by 250% to $5,000. This has led to supply shortages and increased costs for U.S. photonics chipmakers, who are now seeking export licenses and alternative suppliers. Companies like Coherent and Lumentum, which are heavily reliant on InP, are facing production challenges despite efforts to increase output. The restrictions have also opened opportunities for Chinese manufacturers to expand their market share.
Why It's Important?
The restrictions on InP exports by China highlight the strategic use of trade controls in the ongoing technological rivalry between the U.S. and China. Indium phosphide is essential for the development of AI data centers, which are crucial for handling the growing demand for AI workloads. The U.S. photonics industry, which relies heavily on this material, faces increased production costs and potential delays in technological advancements. This situation underscores the vulnerability of global supply chains to geopolitical tensions and the need for diversification of supply sources. The U.S. may need to invest in domestic production capabilities or seek partnerships with non-Chinese suppliers to mitigate these risks.
What's Next?
U.S. companies are likely to continue lobbying for export licenses and exploring alternative sources for InP. There may be increased pressure on the U.S. government to negotiate with China to ease these restrictions. Additionally, U.S. firms might accelerate efforts to develop domestic production capabilities or form alliances with other countries to secure a stable supply of InP. The situation could also prompt a reevaluation of supply chain strategies and increased investment in research and development to find substitutes for InP.
