Guangdong Champion Asia Electronics Co., Ltd. (603386.SH) announced that its stock experienced abnormal trading fluctuations, with the cumulative deviation of closing prices exceeding 20% over three consecutive trading days on December 5, 8, and 9, 2025, in accordance with the Shanghai Stock Exchange trading rules.

Following internal verification, the company confirmed no material media reports influencing its stock price. Its core business involves the R&D, production, and sales of printed circuit boards (PCBs), as well as surface-mount technology (SMT) assembly. Product offerings include rigid PCBs, flexible PCBs, rigid-flex boards, high-density interconnect (HDI) boards, and PCBA, catering to diverse applications detailed in periodic disclosures.

While the company’s PCB products can be utilized in humanoid robots, revenue from this segment accounts for less than 0.05% of total sales, posing no material impact on current performance. Future growth in this application area remains highly uncertain.