DAIHATSU DIESEL MFG. CO., LTD. is a Japan-based company engaged in the manufacturing and sales of internal combustion engines and industrial machines, as well as the leasing of real estate properties. The Company operates through two business segments. The Marine Engine Related Business segment is engaged in the sales of marine diesel engines, land diesel engines, gas turbines and related parts. The Land Engine segment is engaged in the provision of information processing service, transportation service, warehousing service, contracted design service, manufacturing and sales business and after services. The other business is engaged in the industrial equipment related business, real estate leasing related business and power distribution related business.