On July 17, Guanghe Technology fell 4.63% in regular trading, trading at HKD 126.7/share, with turnover of HKD 27.45 million. The PCB sector continued to face broad selling pressure for multiple consecutive sessions.

On the news front, semiconductor research firm SemiAnalysis previously disclosed that NVIDIA's Kyber NVL144 rack architecture has been delayed over 12 months to 2028 due to manufacturing yield bottlenecks in 78-layer M9-grade PCB mid-boards, delivering a material blow to forward order expectations across the AI server high-speed PCB supply chain. Although NVIDIA responded that its overall product roadmap remains unchanged, and UBS noted the delay only involves the top-tier flagship solution with limited impact on full-year performance, short-term market sentiment has yet to recover. Within the Electronic Components sector, KB Laminates fell 6.17%, Kingboard Holdings fell 5.80%, and CCTC fell 5.92%, reflecting broad sectoral weakness.

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