Keisuke Miyoshi

Keisuke Miyoshi joined TPC Group in October 2026 as Senior Vice President, Chief of Staff. He has more than 35 years of experience in the petrochemical industry, with extensive expertise in global business development, sales and marketing, commercial strategy, and organizational leadership.

Mr. Miyoshi began his career at Japan Synthetic Rubber Co., Ltd. (now JSR Corporation), where he held various positions in the elastomer business. His experience spans global market development, product development, sales, business management, and customer service across the automotive, tire, infrastructure, consumer products, and healthcare industries.

In 2016, he was appointed President of JSR's European sales operations, where he led the expansion of the high-performance elastomer business. He played a key role in commercial initiatives supporting the expansion of solution-polymerized styrene-butadiene (SSBR) production capacity, new manufacturing facilities, and the global customer service network, strengthening the company's position as a leading global supplier.

In 2022, Mr. Miyoshi assumed responsibility for sales and marketing at ENEOS Materials Corporation, overseeing the elastomer and petroleum resin businesses. He also led initiatives to expand the company's advanced materials business, including the establishment of battery materials research facilities in Belgium in 2023 and China in 2025. He was appointed Executive Officer in 2024 and Managing Executive Officer in 2026.

Mr. Miyoshi holds a degree in Business Administration from Chuo University in Japan, where he studied marketing.