Xiamen Senyi Quantum Materials Co., Ltd., referred to as "Senyi Quantum". The name "Senyi" symbolizes the macro forest embracing all things, and the micro singularity that perceives the fundamental essence of matter. Founded in August 2022, it is a high‑tech enterprise specializing in core materials for optical communications. It has been awarded titles including Specialized, Refined, Differential and Innovative Enterprise, National High‑tech Enterprise, and Outstanding Private Enterprise of Fujian Province.

Its flagship product, Faraday rotator wafer, serves as a critical component for optical isolators and circulators in the optical communication sector. Widely deployed in 400G/800G/1.6T high‑speed optical modules, it constitutes a key upstream material and device for AI applications.

From its inception, Senyi Quantum has responded to the national strategy of "breaking bottleneck technologies and realizing domestic substitution", and carried out persistent R&D breakthroughs under the leadership of its founder. The company has achieved leap‑forward development within three years of establishment. Between 2024 and 2025, it accomplished the transition from technological breakthrough to large‑scale mass production, breaking the 20‑year‑long market monopoly held by US and Japanese enterprises. It has effectively mitigated the risk of supply‑chain disruption in AI upstream industries, creating strategic room for downstream industry leaders such as HiSilicon, Innolight, Eoptolink and Accelink.

The 15th Five‑Year National Plan proposes to "adopt extraordinary measures to secure decisive breakthroughs in key core‑technology research for priority fields including advanced materials across the whole industrial chain". Against this backdrop, Senyi Quantum has grown into China’s first and the world’s third enterprise capable of large‑scale mass production of Faraday rotator wafers.