Yasunaga Corp. engages in the manufacture and sale of engine parts, machine tools, wire saw and electronics system. It operates through the following segments: Engine Parts, Machine Tools, Environmental Equipment, and Others. The Engine Parts segment produces connecting rod, cylinder head, cylinder block, camshaft and crankshaft. The Machine Tools segments manufactures fracture splitting machine, single and double-spindle machining center, transfer machine, leak tester, finishing boring machine, and micro finisher. The Environmental Equipment segment produces air pump and disposers. The Others segment includes transportation business. The company was founded by Yoshifusa Yasunaga in June 1923 and is headquartered in Iga, Japan.