Market sources circulated a customer letter saying Nan Ya will raise prices of substrates and base materials by 20% from Sept. 1, citing large increases in costs for copper foil, glass fiber cloth and resins. Nan Ya said the price increase is real and it has negotiated multiple price adjustments with customers this year as material costs rose, but the circulated document is not an official external price notice and the company has not implemented a blanket, one‑time 20% across‑the‑board increase

Market sources circulated a customer letter saying Nan Ya will raise prices of substrates and base materials by 20% from Sept. 1, citing large increases in costs for copper foil, glass fiber cloth and resins. Nan Ya said the price increase is real and it has negotiated multiple price adjustments with customers this year as material costs rose, but the circulated document is not an official external price notice and the company has not implemented a blanket, one‑time 20% across‑the‑board increase. Electronic-material prices have been adjusted repeatedly this year, with cumulative gains of more than 100%.