TAIPEI, June 15 (Reuters) - Taiwan"s Foxconn (2317.TW) said a subsidiary has invested T$995.2 million ($36 million) in Gigasolar Materials Corp (3691.TWO) to develop electric vehicle (EV) battery materials. Foxconn, Apple"s (AAPL.O) main iPhone maker, said the investment via a private placement through a Taiwan-based subsidiary will make it the second-largest shareholder in Gigasolar, known for manufacturing solar cell materials. The two companies will jointly develop materials for electric cars, Foxconn said in a statement on Tuesday. Foxconn has identified electric vehicles as a key new business and has struck several deals with companies, including Italian carmaker Stellantis (STLA.MI) and Thailand"s state-run energy group PTT (PTT.BK). read more The Taiwanese company aims to provide components or services to 10% of the world"s electric cars by 2025 to 2027, Foxconn chairman Liu Young-way said in October, vowing to lower manufacturing and other costs with its assembling know-how as the world"s largest contract electronics manufacturer. Reporting by Yimou Lee; Editing by Alexander Smith and Bernadette Baum