RANCHO CUCAMONGA, CA - Kumho Tire U.S.A. Inc. will raise its passenger, light truck, truck and bus tire prices up to 10 percent on Sept. 1, according to Modern Tire Dealer magazine.

Increases will include in-line adjustments, according to Kumho officials.

"Dramatic increases in the cost of raw materials and transportation necessitate this action," says Kumho Vice President of Marketing Rick Brennan.