Group 1 - The core viewpoint of the article emphasizes the ongoing supply-demand gap in the high-end PCB market, which is leading to difficulties in capacity release and potential price increases that may result in significant performance growth in Q2 for key PCB suppliers [1] - A shortage of Low-Dk fiberglass cloth is identified as a major constraint on PCB expansion, with two companies highlighted as the main domestic manufacturers of this material [1] - The shortage of Low-DK fiberglass cloth has already led to two rounds of price increases for copper-clad laminates in Q2, with one company's high-speed copper-clad laminates significantly increasing their market share within the supply chains of Huawei and Nvidia [1]