In 1964 Rioichi Kawai, son of Yoshinari Kawai, became president of Komatsu, and it began exporting its products, looking to counteract the postwar image of Japanese products as being cheap and poorly made. In July 1967, it entered the U.S. market, taking on Caterpillar, the world's largest bulldozer maker, in its home market. This was done under the company slogan of "Maru-C", translating into English as "encircle Caterpillar" (from the game of Go (board game), where encircling an opponent results in capture of their territory).
Komatsu and Dresser Industries established Komatsu Dresser to make mining tractors and related equipment. This 50-50 ownership lasted from September 1988 to August 1994, when Komatsu bought out Dresser's share. Komatsu's mining products were consolidated under the name Komatsu Mining Systems in 1997. To prevent brand-name confusion during these corporate changes, the name "Haulpak" was used for the product line Komatsu began with Dresser. The name "Haulpak" dates back to 1957 when LeTourneau-Westinghouse introduced a range of rear dump trucks known as "Haulpaks". LeTourneau-Westinghouse equipment later became known simply as WABCO equipment in 1967. The name Haulpak was an industry term that eventually became applied to any type of rear dump truck. A detailed history of the development of the Haulpak can be found in Wabco Australia.