 Its diversification was mostly into related fields.It entered into coal-mining to gain the coal needed for ships, bought a shipbuilding yard from the government to repair the ships it used, founded an iron mill to supply iron to the shipbuilding yard, started a marine insurance business to cater for its shipping business, and so forth.Later, the managerial resources and technological capabilities acquired through the operation of shipbuilding were used to expand the business further into the manufacture of aircraft and equipment.