Eastman Executive and Leadership Team

July, 2026

Leadership Overview

Eastman has 9 executives leading key functions including strategy, information technology, technology, human resources, finance, marketing, medical affairs, and divisional operations.

Driven by innovation, Eastman is dedicated to enhancing the quality of life through advanced materials and specialty chemicals, fostering sustainable solutions and driving global market impact.

Leadership Roles at Eastman

  • Chairman & Chief Executive Officer - Mark Costa
  • Finance Director, Global Business & 3b Revenue External Reporting Segment) Segment Chief Financial Officer - Jennifer Wang
  • Chief Financial Officer & Executive Vice President - William McLain
  • President, Chemical Intermediates & Fibers Division - Erwin Dijkman
  • Chief Information Officer - Aldo Noseda
  • Senior Vice President and Chief Technology Officer - Christopher Killian
  • Chief Human Resources Officer - Adrian Holt
  • Vice President & Chief Marketing Officer - Donald Blair
  • Chief Medical Officer - Ibrahim Heiba
  • Mark Costa - Chairman & Chief Executive Officer

    Mark Costa, the Chairman & Chief Executive Officer at Eastman, directs the company's overarching strategy and global operations. Costa guides Eastman's commitment to innovation and sustainability, ensuring alignment with market demands for advanced materials and specialty chemicals. This leadership role involves setting the strategic vision for growth and operational excellence across all business segments. Costa drives the company's financial performance and market positioning, overseeing critical decisions that shape Eastman's future. The Chairman & Chief Executive Officer ensures that the company's mission to enhance quality of life through its products is consistently pursued. Mark Costa's executive oversight extends to fostering a culture of continuous improvement and responsible corporate citizenship, solidifying Eastman's standing in the international chemical industry.
    Mark Costa

    Jennifer Wang - Finance Director, Global Business & 3b Revenue External Reporting Segment) Segment Chief Financial Officer

    Jennifer Wang, the Finance Director, Global Business & 3b Revenue External Reporting Segment) Segment Chief Financial Officer at Eastman, manages critical financial operations and reporting for key business segments. Wang oversees financial planning, analysis, and external reporting, ensuring accuracy and compliance with global accounting standards. This role is essential for providing financial insights that support strategic decision-making and drive revenue growth across Eastman's diverse product lines. The Finance Director, Global Business & 3b Revenue External Reporting Segment) Segment Chief Financial Officer ensures robust financial controls and optimizes resource allocation to support the company's manufacturing and specialty chemical businesses. Jennifer Wang's financial acumen is vital for maintaining investor confidence and guiding Eastman's fiscal health internationally. Wang's responsibilities include managing segment-specific financial performance.

    William McLain - Chief Financial Officer & Executive Vice President

    William McLain, the Chief Financial Officer & Executive Vice President at Eastman, directs the company's comprehensive financial strategy and fiscal management. McLain oversees all aspects of financial planning, capital allocation, and investor relations, ensuring Eastman's financial stability and growth. This executive position involves managing the company's global financial operations, including treasury, accounting, and risk management, critical for its international manufacturing and chemical businesses. The Chief Financial Officer & Executive Vice President plays a key part in strategic initiatives, mergers, and acquisitions, driving shareholder value. William McLain's leadership ensures robust financial controls and compliance, supporting Eastman's commitment to sustainable practices and operational excellence. McLain's oversight is fundamental to the company's long-term economic health.
    William McLain

    Erwin Dijkman - President, Chemical Intermediates & Fibers Division

    Erwin Dijkman, the President, Chemical Intermediates & Fibers Division at Eastman, directs the strategic operations and financial performance of this key business segment. Dijkman oversees the production, innovation, and market development for chemical intermediates and fibers, serving a wide array of industrial applications. This leadership position involves driving operational efficiency, managing supply chains, and identifying growth opportunities within the division's global markets. The President, Chemical Intermediates & Fibers Division ensures that the division's activities align with Eastman's broader corporate objectives for sustainability and technological advancement. Erwin Dijkman's focus is on maximizing the division's contribution to Eastman's overall success and market leadership. Dijkman leads the strategic direction for this specialized segment.

    Aldo Noseda - Chief Information Officer

    Aldo Noseda, the Chief Information Officer at Eastman, architects the company's global information technology strategy and infrastructure. Noseda ensures robust digital systems support Eastman's manufacturing and material science operations, driving efficiency and data security. This role involves overseeing the implementation of advanced IT solutions that enhance business processes and enable data-driven decision-making across all departments. The Chief Information Officer manages the technology roadmap, focusing on innovation and scalability to meet evolving business needs. Noseda's leadership ensures that Eastman's technological capabilities remain competitive, supporting the company's international presence and product development. Aldo Noseda's strategic direction for IT infrastructure is crucial for maintaining operational integrity and facilitating global collaboration.
    Aldo Noseda

    Christopher Killian - Senior Vice President and Chief Technology Officer

    Christopher Killian, the Senior Vice President and Chief Technology Officer at Eastman, spearheads the company's technological innovation and research and development initiatives. Killian directs the exploration and application of new materials and chemical processes that drive Eastman's product portfolio forward. This critical role involves fostering a culture of scientific discovery and ensuring that technological advancements align with market opportunities and sustainability goals. The Senior Vice President and Chief Technology Officer oversees global R&D teams, guiding the development of next-generation solutions for diverse industries. Christopher Killian's expertise is vital in maintaining Eastman's competitive edge through cutting-edge technology and product differentiation. Killian's leadership ensures the company's commitment to material science innovation is realized.

    Adrian Holt - Chief Human Resources Officer

    Adrian Holt, the Chief Human Resources Officer at Eastman, leads the global human capital strategy and organizational development. Holt ensures that Eastman cultivates a high-performing workforce, fostering talent acquisition, employee engagement, and leadership development across its international operations. This position involves shaping policies and programs that support a diverse and inclusive work environment, crucial for Eastman's manufacturing and chemical sectors. The Chief Human Resources Officer oversees talent management initiatives, ensuring the company has the skilled personnel necessary to achieve its strategic objectives. Adrian Holt's focus on employee well-being and professional growth is integral to sustaining Eastman's operational excellence and innovative spirit. Holt drives initiatives that align human resources with the company's long-term vision.

    Donald Blair - Vice President & Chief Marketing Officer

    Donald Blair, the Vice President & Chief Marketing Officer at Eastman, leads the global marketing and brand strategy for the company's diverse portfolio of materials and specialty chemicals. Blair directs market analysis, product positioning, and customer engagement initiatives to drive demand and expand market share internationally. This role involves overseeing all marketing communications, digital strategies, and brand development efforts that enhance Eastman's market presence. The Vice President & Chief Marketing Officer ensures that marketing efforts effectively communicate the value proposition of Eastman's innovative solutions to various industries. Donald Blair's strategic marketing leadership is crucial for connecting Eastman's technological advancements with customer needs. Blair champions market-driven innovation and customer-centric approaches.

    Ibrahim Heiba - Chief Medical Officer

    Ibrahim Heiba, the Chief Medical Officer at Eastman, provides critical medical and health expertise, particularly relevant for Eastman's chemical manufacturing and material science operations. Heiba oversees health and safety protocols, ensuring compliance with stringent industry regulations and promoting employee well-being across global facilities. This role involves advising on health-related matters, managing occupational health programs, and contributing to the company's commitment to responsible operations. The Chief Medical Officer plays a vital part in risk assessment and mitigation concerning health and environmental factors. Ibrahim Heiba's medical guidance supports Eastman's dedication to safe working conditions and sustainable business practices. Heiba ensures health standards align with corporate responsibility.

    Frequently Asked Questions Regarding Eastman Top Executives and Leadership Team

    Who leads Eastman?
    Eastman is led by Mark Costa (Chairman & Chief Executive Officer), along with executives such as Jennifer Wang (Finance Director, Global Business & 3b Revenue External Reporting Segment) Segment Chief Financial Officer) and William McLain (Chief Financial Officer & Executive Vice President).
    Who is part of Eastman’s executive team?
    The executive team of Eastman includes leaders such as Mark Costa (Chairman & Chief Executive Officer), Jennifer Wang (Finance Director, Global Business & 3b Revenue External Reporting Segment) Segment Chief Financial Officer), William McLain (Chief Financial Officer & Executive Vice President) and other senior executives.
    How many executives does Eastman have?
    Eastman has 9 executives leading key business areas.
    What roles are included in Eastman’s leadership team?
    The leadership team of Eastman includes roles such as Chairman & Chief Executive Officer, Finance Director, Global Business & 3b Revenue External Reporting Segment) Segment Chief Financial Officer, Chief Financial Officer & Executive Vice President, President, Chemical Intermediates & Fibers Division, Chief Information Officer.