Resonac Executive and Leadership Team

May, 2026

Leadership Overview

Resonac has 10 executives leading key functions including strategy, technology, operations, marketing, human resources, and finance.

Driven by innovation, Resonac operates as a chemical company in Japan, China, rest of Asia, and internationally, focusing on semiconductor and electronic materials, mobility, innovation enabling materials, and chemicals.

Leadership Roles at Resonac

  • President & Chief Executive Officer - Yasushi Makabe
  • Chief Financial Officer, Graphite Business Unit - Taku Tanaka
  • Managing Corporate Officer, Chief Financial Officer - Hideki Somemiya
  • Chief Operating Officer - Masatoshi Mori
  • Chief Technology Officer - Koji Miyakoshi
  • Chief Marketing Officer - Timothy Saxon
  • Chief Human Resources Officer - Nori Imai
  • Chief Human Resources Officer - Giwon Park
  • Corporate Officer, Chief Technology Officer - Masato Fukushima
  • Deputy Chief Human Resources Officer - Shingo Maeda
  • Yasushi Makabe - President & Chief Executive Officer

    Yasushi Makabe, the President & Chief Executive Officer at Resonac, directs the overarching corporate strategy and operational execution across all business segments. Makabe guides the company's global expansion and market positioning, ensuring alignment with the core mission of providing advanced chemical solutions. This leadership role involves setting the strategic vision for the Semiconductor and Electronic Materials, Mobility, Innovation Enabling Materials, and Chemicals divisions. Yasushi Makabe drives initiatives to foster innovation and maintain Resonac's competitive edge in the international chemical industry. The President & Chief Executive Officer's focus remains on sustainable growth and enhancing shareholder value through robust business development and strategic partnerships. Makabe's direction ensures the company's continued impact in key technological sectors.

    Taku Tanaka - Chief Financial Officer, Graphite Business Unit

    Taku Tanaka, the Chief Financial Officer, Graphite Business Unit at Resonac, directs the financial strategy and management specifically for the graphite materials division. Tanaka oversees financial planning, budgeting, and performance analysis to ensure the profitability and fiscal health of this key business unit. This role involves managing financial risks and optimizing capital allocation within the graphite sector. The Chief Financial Officer, Graphite Business Unit provides critical financial insights to support strategic decision-making for graphite-related operations. Taku Tanaka's financial acumen is essential for driving the growth and efficiency of the graphite business, contributing to Resonac's overall financial strength. Tanaka's oversight ensures sound financial practices within the unit.

    Hideki Somemiya - Managing Corporate Officer, Chief Financial Officer

    Hideki Somemiya, the Managing Corporate Officer, Chief Financial Officer at Resonac, oversees the comprehensive financial operations and strategic financial planning for the entire corporation. Somemiya manages corporate finance, treasury, investor relations, and financial reporting, ensuring fiscal integrity and compliance across all segments. This position is pivotal in guiding the company's financial direction and securing capital for growth initiatives. The Managing Corporate Officer, Chief Financial Officer provides strategic financial guidance to the executive team and the board. Hideki Somemiya's leadership ensures robust financial management, supporting Resonac's global operations and its mission to deliver value through advanced chemical solutions. Somemiya's financial stewardship is key to the company's stability.

    Masatoshi Mori - Chief Operating Officer

    Masatoshi Mori, the Chief Operating Officer at Resonac, manages the day-to-day operational efficiency and execution across the company's diverse business units. Mori oversees manufacturing processes, supply chain logistics, and operational scaling to meet global demand for Resonac's chemical products. This position is vital for ensuring seamless integration between R&D, production, and market delivery. The Chief Operating Officer focuses on optimizing resource allocation and implementing best practices to enhance productivity and reduce costs. Masatoshi Mori's operational oversight extends to ensuring quality control and compliance with industry standards throughout the production cycle. Mori's strategic management of operations supports the company's ability to deliver high-quality materials to its international clientele.

    Koji Miyakoshi - Chief Technology Officer

    Koji Miyakoshi, the Chief Technology Officer at Resonac, architects the company's technological roadmap and innovation pipeline. Miyakoshi oversees research and development efforts, driving advancements in semiconductor and electronic materials, mobility solutions, and other specialized chemical applications. This critical role involves identifying emerging technologies and translating them into viable product strategies that align with Resonac's business objectives. The Chief Technology Officer champions a culture of scientific inquiry and technical excellence across the organization. Koji Miyakoshi's leadership ensures that Resonac remains at the forefront of material science innovation, supporting the development of next-generation products. Miyakoshi's strategic guidance is essential for maintaining the company's technological leadership and expanding its intellectual property portfolio.

    Timothy Saxon - Chief Marketing Officer

    Timothy Saxon, the Chief Marketing Officer at Resonac, develops and executes comprehensive marketing strategies to enhance brand visibility and market penetration. Saxon directs global marketing initiatives, focusing on communicating the value proposition of Resonac's advanced chemical materials and solutions to key industries. This role involves understanding market dynamics, identifying customer needs, and shaping product positioning. The Chief Marketing Officer oversees market research, digital marketing, and public relations efforts to strengthen Resonac's market presence. Timothy Saxon's strategic marketing leadership aims to drive customer acquisition and foster long-term client relationships across Asia and international markets. Saxon's efforts are crucial for translating technological innovation into commercial success.

    Nori Imai - Chief Human Resources Officer

    Nori Imai, the Chief Human Resources Officer at Resonac, leads the development and implementation of human capital strategies to support the company's growth and operational objectives. Imai oversees talent acquisition, employee development, and organizational culture initiatives designed to attract and retain top talent globally. This position is fundamental to building a skilled and motivated workforce capable of driving innovation in the chemical sector. The Chief Human Resources Officer ensures that HR policies align with Resonac's business strategy and promote a productive work environment. Nori Imai's leadership in human resources is critical for fostering employee engagement and supporting the company's expansion into new markets. Imai's focus on talent management underpins Resonac's long-term success.
    Nori Imai

    Giwon Park - Chief Human Resources Officer

    Giwon Park, the Chief Human Resources Officer at Resonac, spearheads human capital management and organizational development initiatives across the company's international operations. Park focuses on cultivating a high-performance culture, driving talent management strategies, and ensuring robust employee relations programs. This role is crucial for aligning HR practices with Resonac's strategic goals in the chemical and materials sectors. The Chief Human Resources Officer oversees workforce planning, compensation, and benefits to attract and retain a diverse and skilled global workforce. Giwon Park's leadership in HR is instrumental in supporting Resonac's expansion and innovation efforts. Park's dedication to employee well-being and professional growth strengthens the company's human capital.

    Masato Fukushima - Corporate Officer, Chief Technology Officer

    Masato Fukushima, the Corporate Officer, Chief Technology Officer at Resonac, contributes significantly to the company's technological advancement and innovation strategy. Fukushima supports the CTO in driving research and development, focusing on material science breakthroughs relevant to semiconductor and electronic materials. This role involves exploring new technological frontiers and ensuring Resonac's product portfolio remains competitive. The Corporate Officer, Chief Technology Officer collaborates with various departments to integrate cutting-edge technologies into business operations. Masato Fukushima's technical expertise is vital for maintaining Resonac's position as a leader in advanced chemical solutions. Fukushima's contributions enhance the company's capacity for innovation and product development.

    Shingo Maeda - Deputy Chief Human Resources Officer

    Shingo Maeda, the Deputy Chief Human Resources Officer at Resonac, supports the CHRO in executing comprehensive human resources strategies and operational management. Maeda assists in talent acquisition, employee engagement, and the implementation of HR policies across Resonac's global workforce. This position plays a key part in fostering a positive and productive work environment, essential for the company's success in the chemical industry. The Deputy Chief Human Resources Officer focuses on enhancing HR service delivery and supporting organizational development initiatives. Shingo Maeda's role is critical in ensuring that HR functions effectively support Resonac's business objectives and its commitment to its employees. Maeda's efforts contribute to a strong and cohesive organizational culture.

    Frequently Asked Questions Regarding Resonac Top Executives and Leadership Team

    Who leads Resonac?
    Resonac is led by Yasushi Makabe (President & Chief Executive Officer), along with executives such as Taku Tanaka (Chief Financial Officer, Graphite Business Unit) and Hideki Somemiya (Managing Corporate Officer, Chief Financial Officer).
    Who is part of Resonac’s executive team?
    The executive team of Resonac includes leaders such as Yasushi Makabe (President & Chief Executive Officer), Taku Tanaka (Chief Financial Officer, Graphite Business Unit), Hideki Somemiya (Managing Corporate Officer, Chief Financial Officer) and other senior executives.
    How many executives does Resonac have?
    Resonac has 10 executives leading key business areas.
    What roles are included in Resonac’s leadership team?
    The leadership team of Resonac includes roles such as President & Chief Executive Officer, Chief Financial Officer, Graphite Business Unit, Managing Corporate Officer, Chief Financial Officer, Chief Operating Officer, Chief Technology Officer.