Sekisui Kydex Names Marty Miller President and COO Effective Nov. 1, 2026; Yoshio Aoshima to Become CEO
Why It MattersLeadership of a key cabin-interior thermoplastics supplier is shifting to an internal operations executive while strategic direction passes to its Japanese parent group, signalling continuity of supply for cabin programmes.
Sekisui Kydex, the manufacturer and supplier of Kydex and Allen thermoplastic materials, has appointed Marty Miller as its new president and chief operating officer, effective 1 November 2026. The company is a major supplier of thermoplastics for aircraft cabin interior applications.
Miller joined Sekisui Kydex more than three years ago as senior vice president of operations. In that role he oversaw IT and automation, innovation and production across three Sekisui Kydex facilities, and led supply chain, environmental health and safety (EHS), continuous improvement and maintenance. Before joining the company he had more than 30 years of manufacturing experience, most recently as chief operating officer at Accupac in Mainland, Pennsylvania, a manufacturer of products for beauty, personal care and healthcare brands.
In a separate leadership change, Yoshio Aoshima, executive officer of the Sekisui High Performance Plastics Company and head of its Mobility business, will become chief executive officer, providing strategic leadership for Sekisui Kydex from Japan. The current president and CEO, Yoritaka "Taka" Yamauchi, has accepted a new position within the Sekisui Chemical Group, in line with its practice of moving employees across roles and businesses to develop leaders. He will continue to support Sekisui Kydex to ensure a smooth leadership transition.
Yamauchi became president and CEO of Sekisui Kydex in 2022 and led the company through recovery, renewal and transformation, including emerging from the Covid-19 pandemic and navigating supply chain disruption, labour constraints, inflationary pressure and rapidly changing customer needs. Miller said Yamauchi had led the company "with purpose, care, and a steady commitment to our shared mission, vision, and values" and that he was honoured to continue that journey.
