Sumitomo Riko Executive and Leadership Team

May, 2026

Leadership Overview

Sumitomo Riko has 5 executives leading key functions including strategy, operations, and product development.

Driven by innovation, Sumitomo Riko is dedicated to advancing Polymer Materials Technology across automotive, infrastructure, electronics, and healthcare sectors, shaping a sustainable future through advanced material solutions.

Leadership Roles at Sumitomo Riko

  • Chief Executive Officer & President - Márcio Roque
  • President - Tetsu Matsui
  • President - Hiroyuki Soga
  • Senior Managing Executive Officer - Hideo Yamane
  • Director & Managing Executive Officer - Tsukasa Oshima
  • Márcio Roque - Chief Executive Officer & President

    Márcio Roque, the Chief Executive Officer & President at Sumitomo Riko, directs the company's overarching strategy and global operations. Roque spearheads the vision for Sumitomo Riko's continued expansion in Polymer Materials Technology, ensuring alignment with market demands across the automotive, infrastructure, electronics, and healthcare industries. This leadership role involves fostering innovation and driving sustainable growth, leveraging the company's established expertise since 1929. Roque's strategic direction ensures the effective deployment of resources to meet evolving customer needs and maintain a competitive edge in the global marketplace. The Chief Executive Officer & President oversees all major business units, guiding their performance and ensuring operational excellence. Márcio Roque's commitment to advancing material science underpins the company's mission to contribute to society through its technological capabilities.

    Tetsu Matsui - President

    Tetsu Matsui, the President at Sumitomo Riko, leads specific strategic business units, driving growth and market penetration. Matsui's leadership focuses on enhancing Sumitomo Riko's product portfolio within the Polymer Materials Technology sector, particularly for the automotive and electronics industries. This executive directs efforts to innovate and refine components that meet stringent performance requirements. The President's role involves close collaboration with research and development teams to bring cutting-edge solutions to market. Matsui's strategic insights are crucial for navigating competitive landscapes and identifying new opportunities for expansion. Tetsu Matsui's commitment to operational excellence ensures the consistent delivery of high-quality products that define Sumitomo Riko's market presence.

    Hiroyuki Soga - President

    Hiroyuki Soga, the President at Sumitomo Riko, spearheads initiatives focused on the infrastructure, housing environment, and healthcare sectors. Soga directs the development and application of advanced Polymer Materials Technology tailored to these specific markets, ensuring Sumitomo Riko's solutions address critical industry needs. This leadership position involves fostering strategic partnerships and driving product innovation to enhance market share. The President's responsibilities include overseeing the successful execution of projects that contribute to sustainable development and improved living standards. Soga's expertise is instrumental in expanding Sumitomo Riko's reach and impact in these vital areas. Hiroyuki Soga's dedication to quality and technological advancement solidifies the company's role as a key provider of essential material solutions.

    Hideo Yamane - Senior Managing Executive Officer

    Hideo Yamane, the Senior Managing Executive Officer at Sumitomo Riko, manages critical aspects of the company's extensive operational framework. Yamane oversees key functional areas that support Sumitomo Riko's manufacturing and sales of Polymer Materials Technology components. This executive's responsibilities include optimizing production processes and supply chain logistics to ensure efficient delivery to the automotive, infrastructure, electronics, and healthcare sectors. The Senior Managing Executive Officer plays a vital part in translating strategic objectives into actionable operational plans, driving efficiency and quality across all manufacturing sites. Yamane's focus on operational excellence directly supports the company's commitment to providing high-performance materials. Hideo Yamane's leadership ensures that Sumitomo Riko maintains its reputation for reliability and technological advancement in its core markets.

    Tsukasa Oshima - Director & Managing Executive Officer

    Tsukasa Oshima, the Director & Managing Executive Officer at Sumitomo Riko, guides strategic initiatives and corporate governance. Oshima's role involves overseeing critical business development efforts and ensuring the company's long-term strategic vision is effectively implemented across all divisions. This includes fostering relationships with key stakeholders and driving innovation in Polymer Materials Technology for the automotive, infrastructure, electronics, and healthcare industries. The Director & Managing Executive Officer contributes significantly to the company's market positioning and expansion strategies. Oshima's oversight ensures that Sumitomo Riko remains at the forefront of material science advancements. Tsukasa Oshima's dedication to corporate responsibility and sustainable practices reinforces the company's commitment to societal contribution.

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    Frequently Asked Questions Regarding Sumitomo Riko Top Executives and Leadership Team

    Who leads Sumitomo Riko?
    Sumitomo Riko is led by Márcio Roque (Chief Executive Officer & President), along with executives such as Tetsu Matsui (President) and Hiroyuki Soga (President).
    Who is part of Sumitomo Riko’s executive team?
    The executive team of Sumitomo Riko includes leaders such as Márcio Roque (Chief Executive Officer & President), Tetsu Matsui (President), Hiroyuki Soga (President) and other senior executives.
    How many executives does Sumitomo Riko have?
    Sumitomo Riko has 5 executives leading key business areas.
    What roles are included in Sumitomo Riko’s leadership team?
    The leadership team of Sumitomo Riko includes roles such as Chief Executive Officer & President, President, President, Senior Managing Executive Officer, Director & Managing Executive Officer.