Sumitomo Riko Co. Ltd. (TYO:5191) will need to boost production in the U.S. if renegotiation of the North American Free Trade Agreement (NAFTA) following President Trump’s inauguration results in high tariffs, said Chairman and CEO Yoshiaki Nishimura. Speaking at a recent media gathering, Nishimura stated that the company will monitor developments involving NAFTA, tailoring investment and employment plans accordingly and…