Resonac Executive and Leadership Team

July, 2026

Leadership Overview

Resonac has 8 executives leading key functions including strategy, finance, technology, and human resources.

Driven by innovation, Resonac is dedicated to advancing chemical solutions across global markets, fostering a leadership philosophy centered on operational excellence and sustainable growth.

Leadership Roles at Resonac

  • President & Chief Executive Officer (Asia) - Hidemitsu Arai
  • Chief Financial Officer, Graphite Business Unit - Taku Tanaka
  • Managing Corporate Officer, Chief Financial Officer - Hideki Somemiya
  • Deputy Chief Human Resources Officer - Shingo Maeda
  • Chief Human Resources Officer - Giwon Park
  • Corporate Officer, Chief Technology Officer - Masato Fukushima
  • Chief Human Resources Officer - Nori Imai
  • Chief Operations Officer - Norbert Gaar
  • Hidemitsu Arai - President & Chief Executive Officer (Asia)

    Hidemitsu Arai, the President & Chief Executive Officer (Asia) at Resonac, directs the company's strategic vision and operational execution across the Asian market. This leadership role involves driving revenue growth and market penetration within key Asian territories, aligning regional objectives with the broader corporate mission. Arai oversees the integration of Resonac's diverse business segments, including Semiconductor and Electronic Materials, Mobility, Innovation Enabling Materials, and Chemicals, ensuring cohesive development and deployment of advanced chemical solutions. The focus remains on expanding Resonac's footprint through strategic partnerships and operational efficiencies, thereby solidifying its position as a leading chemical entity in the region. Hidemitsu Arai's mandate includes fostering innovation and ensuring the delivery of high-quality products and services that meet evolving industry demands.

    Taku Tanaka - Chief Financial Officer, Graphite Business Unit

    Taku Tanaka, the Chief Financial Officer, Graphite Business Unit at Resonac, manages the financial operations and strategic fiscal planning for the Graphite Business Unit. This critical position involves overseeing budgeting, forecasting, and financial reporting specifically for graphite-related products and services, ensuring profitability and sustainable growth. Tanaka's responsibilities extend to analyzing market trends and economic conditions to inform investment decisions and optimize financial performance within this specialized segment. The role requires close collaboration with operational leaders to ensure financial strategies support the unit's production targets and market expansion goals. Taku Tanaka plays a key part in driving financial discipline and identifying opportunities for cost efficiencies and revenue enhancement within the graphite sector.

    Hideki Somemiya - Managing Corporate Officer, Chief Financial Officer

    Hideki Somemiya, the Managing Corporate Officer, Chief Financial Officer at Resonac, holds ultimate responsibility for the company's financial health and strategic fiscal direction. This executive role involves overseeing all financial planning, accounting, treasury, and investor relations activities across Resonac's global operations. Somemiya guides the allocation of capital, manages financial risks, and ensures compliance with all regulatory requirements in Japan and internationally. The Chief Financial Officer's mandate includes driving financial performance, supporting strategic investments in innovation and expansion, and communicating financial results to stakeholders. Hideki Somemiya's leadership ensures the financial stability and growth necessary for Resonac to achieve its objectives in the chemical industry.

    Shingo Maeda - Deputy Chief Human Resources Officer

    Shingo Maeda, the Deputy Chief Human Resources Officer at Resonac, supports the strategic direction and implementation of human capital initiatives across the organization. This role focuses on enhancing employee engagement, talent development, and organizational effectiveness to align with Resonac's business objectives. Maeda collaborates with the Chief Human Resources Officer to refine HR policies and programs, ensuring they foster a productive and inclusive work environment. The responsibilities include overseeing talent acquisition, performance management, and compensation strategies, particularly as they relate to supporting the company's operations in Japan, China, and other parts of Asia. Shingo Maeda's contribution is vital in building a robust workforce capable of driving innovation within the Semiconductor and Electronic Materials, Mobility, and Chemicals segments.

    Giwon Park - Chief Human Resources Officer

    Giwon Park, the Chief Human Resources Officer at Resonac, directs the comprehensive human resources strategy and operations for the global enterprise. This leadership position encompasses talent management, organizational development, and fostering a positive corporate culture aligned with Resonac's mission. Park is responsible for developing and implementing policies that attract, retain, and develop a high-performing workforce across all business segments, including Semiconductor and Electronic Materials, Mobility, and Chemicals. The role involves ensuring HR practices support the company's international operations and strategic growth initiatives. Giwon Park's oversight extends to employee relations, compensation and benefits, and compliance, ensuring Resonac remains an employer of choice and a leader in its industry.

    Masato Fukushima - Corporate Officer, Chief Technology Officer

    Masato Fukushima, the Corporate Officer, Chief Technology Officer at Resonac, spearheads the company's technological innovation and research and development initiatives. This pivotal role involves setting the technological roadmap and driving advancements across Resonac's diverse business units, including Semiconductor and Electronic Materials and Mobility. Fukushima oversees the exploration of new materials, processes, and applications that enhance product performance and create competitive advantages. The Chief Technology Officer's responsibilities include fostering a culture of innovation, managing intellectual property, and ensuring that technological investments align with market needs and long-term business strategy. Masato Fukushima's expertise is crucial in maintaining Resonac's position at the forefront of chemical technology.

    Nori Imai - Chief Human Resources Officer

    Nori Imai, the Chief Human Resources Officer at Resonac, leads the strategic development and execution of human capital management across the organization. This executive function focuses on cultivating a high-performance culture, driving talent acquisition and retention, and ensuring robust employee development programs. Imai's responsibilities include shaping HR policies that support Resonac's global operations and its diverse business segments, such as Semiconductor and Electronic Materials and Chemicals. The role emphasizes creating an environment that promotes innovation, collaboration, and employee well-being. Nori Imai works to align human resources strategies with the company's overarching business objectives, ensuring the workforce is equipped to meet future challenges and opportunities.
    Nori Imai

    Norbert Gaar - Chief Operations Officer

    Norbert Gaar, the Chief Operations Officer at Resonac, directs the company's global operational strategies and execution, ensuring efficiency and quality across all manufacturing and supply chain functions. This leadership role involves optimizing production processes, managing operational risks, and driving continuous improvement initiatives within the Semiconductor and Electronic Materials, Mobility, and Chemicals segments. Gaar's focus is on enhancing productivity, reducing costs, and ensuring the reliable delivery of Resonac's products to international markets. The Chief Operations Officer oversees the integration of advanced manufacturing technologies and sustainable practices to support the company's growth objectives. Norbert Gaar's leadership is essential for maintaining operational excellence and strengthening Resonac's competitive position.

    Frequently Asked Questions Regarding Resonac Top Executives and Leadership Team

    Who leads Resonac?
    Resonac is led by Hidemitsu Arai (President & Chief Executive Officer (Asia)), 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 Hidemitsu Arai (President & Chief Executive Officer (Asia)), 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 8 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 (Asia), Chief Financial Officer, Graphite Business Unit, Managing Corporate Officer, Chief Financial Officer, Deputy Chief Human Resources Officer, Chief Human Resources Officer.