China Communications Infrastructure: US Optical Transceiver Bill: Direct Exposure Limited and Policy Overhang Persists

On 25 Sep 2026, four U.S. senators introduced the Securing National Security Systems from Chinese Optical Transceivers Act, explicitly naming Innolight and Eoptolink as restricted vendors for U.S. National Security Systems (NSS) procurement. As the bill is still at an early legislative stage and would not impose a blanket ban across commercial data centers or AI infrastructure, we believe the direct earnings impact should remain limited near term. For Innolight and Eoptolink, the main concern is not the immediate loss of NSS orders, but the possibility of broader restrictions in the future. S.5548 is a targeted restriction on NSS procurement — a legally defined category encompassing military command and control, intelligence activities, classified information systems, and cryptographic national security functions. It is not a blanket ban on commercial data center or AI infrastructure markets, where Innolight and Eoptolink derive most of their revenue. The immediate revenue impact is li