21 May 2026 | 7:21PM HKT Equity Research NSIG (688126.SS): Mgmt. visit: Photonics SOI expansion on strong demand; 300mm capacity expansion with mix upgrade We hosted NSIG management in Shanghai on May 21 during our China Tech Tour. Key discussions were around (1) Silicon Photonics demand outlook, (2) SOI technology advantages/ challenges, and (3) company's 300mm wafer capacity expansion. Overall, management is positive on the improving client demand of 300mm wafer in China market, driven by capacity expansi ...