PCB材料驱紧，日系大厂大幅上调价格

Group 1 - Resonac announced a price increase of over 30% for copper-clad laminates (CCL) and adhesive films starting March 1, due to tight supply and soaring raw material prices [1] - The CCL industry is experiencing a tight supply-demand balance, with AI industry driving high-end material demand, leading to a potential increase in both volume and price [1] - Shengyi Technology has initiated a price increase in October 2025, with expectations of further price adjustments in Q1 2026 due to rising upstream copper prices and material costs [1] Group 2 - Shengyi Technology plans to expand high-performance CCL production with an investment of 4.5 billion [2] - Defu Technology's subsidiary signed a cooperation agreement with a leading domestic CCL company to supply high-end electronic circuit copper foil products for the 2026 fiscal year [2]