Chongda Technology said its shares rose by more than 20% over three consecutive trading days from September 7 to September 9, 2026, triggering an abnormal trading alert, according to Jiemian News. The company said AI server-related PCB products accounted for no more than 10% of total revenue in 2025 and the first half of 2026, so the impact on current performance was limited. It also said its PTFE-based PCB products are mainly used in communications and are not involved in high-speed server business. Chongda Technology added that it has no business relationship with Huawei MateXT2 or the Kirin 9050 Pro chip, and that its subsidiary Pnuowei's SiP/mSAP packaging substrates do not involve hybrid bonding, TSV, or 2.5D/3D packaging processes.