Asahi Kasei Corp. (TYO:3407) is planning an increase to production capacity for its solution-polymerized styrene–butadiene rubber (S-SBR) business, which has continued to achieve a high level of sales. The company’s facilities here are currently operating at full capacity. Moving forward, Asahi Kasei projects that sales under the business will continue growing steadily for fiscal 2018. As S-SBR is now used…