港股光通信概念股集體大跌，海光芯正(01191.HK)跌超13%，曦智科技-P(01879.HK)跌超12%，劍橋科技(06166.HK)跌超9%，長飛光纖光纜(06869.HK)纜跌超7%。

CHINA met Cambodian Prime Minister Hun Manet in Shanghai on July 17. CHINA urged acceleration of the "Industrial Development Corridor" and "Fish‑Rice Corridor" projects, optimization of power and agricultural sectors, and promotion of AI and the digital economy to support Cambodian livelihoods. The sides will use the diplomatic, defense and public‑security "3+3" strategic‑dialogue mechanism to jointly target cross‑border crime, including counterfeit goods, smuggling, online gambling and telecom fraud. CHINA said it is willing to work with Cambodia to implement four global initiatives and supports Cambodia‑Thailand dialogue to consolidate the ceasefire and build mutual trust.

CENC automatic determination: M4.2 at 09:08 CST on Jul 17 near Haixi Prefecture, Qinghai (37.82°N, 95.47°E). Final parameters subject to the official rapid bulletin.