Yasunaga Corp. engages in the manufacture and sale of engine parts for automobiles and industrial machines. It operates through the following segments: Engine Parts, Machine Tools, Environmental Equipment, and Others. The Engine Parts segment produces connecting rods, cylinder heads, cylinder blocks, camshaft and crankshaft. The Machine Tools segment manufactures fracture splitting and boring machines, single and double-spindle machining center, transfer machines, leak testers and micro finisher. The Environmental Equipment segment produces air pump and disposers. The Others segment includes transportation business. It also offers solar cells, electronics and semiconductors. The company was founded by Yoshifusa Yasunaga in June 1923 and is headquartered in Iga, Japan.