Raw materials trading firm Sanyo Trading Co. Ltd. (TYO:3176) has posted a strong set of business results for the fiscal year ending September 2018. Over the period, the company achieved 78.45 billion yen ($688.8 million) in sales, up 15.8 percent year-on-year; 5.26 billion yen in operating profit, up 6.6 percent; 5.58 billion yen in ordinary profit, up 5.8 percent; and…