Kingboard Laminates, a leading Chinese copper-clad laminate (CCL) maker, has issued another price increase notice as shortages of core materials such as fiberglass cloth and copper foil intensify and prices surge. Effective immediately, the company will raise FR-4 substrate prices by 10% across the board, while prepreg (PP) prices will rise 10% for thick cloth of style 7628 and above, and 20% for thin cloth below 7628.