Oct 14, 2004. /Lesprom Network/. Papierfabrik A. Koehler AG, Germany, a leading manufacturer of thermal papers intends to increase its prices to all Asian markets effective with shipments in January. Koehler attributes the need for this price rise to encreased expenses on chemicals and energy. In the year 2003 the Koehler Group reached a turnover of Euro 525 millions and sales of 410,000 tons.