On August 6, CIG fell 5.66% in regular trading, trading at HK$78.75/share, with turnover of HK$105 million. The decline extends losses from the prior session as the US optical module ban news continues to pressure the stock.

On the news front, the US Federal Communications Commission is reportedly drafting a ban on imports of new Chinese-made data center optical modules, citing alleged security risks. CIG specializes in high-speed optical module R&D, production and sales, making the proposed restriction a direct headwind to its business outlook. Chinese manufacturers currently hold over 70% of the global 800G/1.6T high-speed optical module market. Across the sector, YOFC fell 3.55% and ZJ Innolight fell 3.76%.

Analysts have noted that the optical communications industry is highly dependent on a globalized ecosystem, with US chip and component firms and cloud service providers also benefiting significantly, suggesting the probability of a blanket restriction remains low. However, short-term sentiment impact remains evident across the sector.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)