The Commerce Ministry's producer price index rose 9.1% year on year in August 2026 (index 115.4), with all three categories higher. Drivers: energy prices, a weaker baht, and low prior-year bases. The ministry expects September to rise further as energy stays high. Exporters may not be able to pass these costs on to buyers, so margins are at risk. Review input costs (fuel, freight, imported materials) and build them into quotes now. Rubber and some metal prices rose; durian, pineapple, coconut, pork and chicken prices fell.