Caterpillar on Monday said it will purchase South Korean part manufacturer JCS Co. Ltd. Terms of the agreement that is subject to regulatory approval were not disclosed. JCS is a subsidiary of Jinsung T.E.C. Co., which supplies equipment to Caterpillar. "South Korea is growing in importance as a market for Caterpillar products and as a potential location for manufacturing in the region," said Rich Lavin, Caterpillar group president for the Asia-Pacific region.