Eastman Executive and Leadership Team

June, 2026

Leadership Overview

Eastman has 10 executives leading key functions including strategy, information technology, finance, technology, marketing, human resources, medical, coatings, and chemical intermediates.

Driven by innovation, Eastman is dedicated to creating materials that enhance the quality of life and deliver sustainable solutions across global markets.

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, Case (Coatings, Adhesives, Sealants & Elastomers) - Mahendra Dorairaj
  • President, Chemical Intermediates & Fibers Division - Erwin Dijkman
  • Chief Information Officer - Aldo Noseda
  • Senior Vice President and Chief Technology Officer - Christopher Killian
  • Vice President & Chief Marketing Officer - Donald Blair
  • Chief Human Resources Officer - Adrian Holt
  • Chief Medical Officer - Ibrahim Heiba
  • Mark Costa - Chairman & Chief Executive Officer

    Mark Costa, the Chairman & Chief Executive Officer at Eastman, directs the company's overall strategic vision and operational execution. Costa guides Eastman's global business operations, ensuring alignment with market demands and long-term growth objectives. This leadership role involves steering the company's expansion into new markets and fostering innovation across its diverse product portfolio. Costa's oversight extends to financial performance, corporate governance, and stakeholder relations, solidifying Eastman's position as a leader in material science. By championing sustainable practices and driving operational excellence, Mark Costa ensures the company's continued success and positive impact on the 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, directs financial operations and reporting for key business segments. Wang manages financial planning, analysis, and external reporting, ensuring accuracy and compliance with regulatory standards. This position involves close collaboration with divisional leaders to drive financial performance and strategic resource allocation. Wang's expertise supports Eastman's global business initiatives by providing critical financial insights and oversight. By optimizing financial processes and managing fiscal risks, Jennifer Wang contributes significantly to the company's financial health and strategic decision-making.

    William McLain - Chief Financial Officer & Executive Vice President

    William McLain, the Chief Financial Officer & Executive Vice President at Eastman, oversees the company's comprehensive financial strategy and management. McLain directs all aspects of financial planning, accounting, treasury, and investor relations, ensuring fiscal discipline and strategic capital allocation. This executive position is crucial for guiding Eastman's financial performance, managing risk, and supporting sustainable growth initiatives. McLain's leadership ensures robust financial controls and drives value creation for shareholders. By optimizing financial operations and providing strategic financial guidance, William McLain plays a key role in Eastman's overall economic stability and expansion.
    William McLain

    Mahendra Dorairaj - President, Case (Coatings, Adhesives, Sealants & Elastomers)

    Mahendra Dorairaj, the President, Case (Coatings, Adhesives, Sealants & Elastomers) at Eastman, directs the strategic growth and operational performance of the CASE division. Dorairaj oversees the development, manufacturing, and marketing of specialized materials for coatings, adhesives, sealants, and elastomers. This leadership position involves driving innovation within the CASE segment to meet evolving customer needs and market demands. Dorairaj's focus includes expanding market share and enhancing product portfolios through strategic initiatives. By leading this key division, Mahendra Dorairaj ensures Eastman's continued leadership in providing advanced material solutions.
    Mahendra Dorairaj

    Erwin Dijkman - President, Chemical Intermediates & Fibers Division

    Erwin Dijkman, the President, Chemical Intermediates & Fibers Division at Eastman, leads the strategic direction and operational execution for this core business unit. Dijkman manages the production and distribution of essential chemical intermediates and fibers, serving a wide array of industrial applications. This role is critical for optimizing manufacturing processes, ensuring supply chain efficiency, and driving product innovation within the division. Dijkman's leadership focuses on enhancing market competitiveness and meeting global demand for these foundational materials. By steering the Chemical Intermediates & Fibers Division, Erwin Dijkman reinforces Eastman's foundational strength in chemical manufacturing.

    Aldo Noseda - Chief Information Officer

    Aldo Noseda, the Chief Information Officer at Eastman, architects the company's global information technology strategy and infrastructure. Noseda oversees the development and implementation of digital solutions that enhance operational efficiency and support business growth across all divisions. This critical role involves managing cybersecurity, data analytics, and enterprise systems to ensure robust and secure technological operations. Noseda's leadership drives digital transformation initiatives, enabling Eastman to leverage technology for competitive advantage and improved customer engagement. By optimizing IT resources and fostering technological innovation, Aldo Noseda ensures the company remains agile and responsive in a rapidly evolving digital landscape.
    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 efforts. Killian leads the exploration and implementation of cutting-edge technologies that advance Eastman's product lines and manufacturing processes. This role is pivotal in driving scientific discovery and translating research into commercially viable solutions across diverse markets. Killian's focus includes fostering a culture of innovation and ensuring the company maintains a technological edge. By directing R&D initiatives and managing intellectual property, Christopher Killian ensures Eastman remains at the forefront of material science advancements.

    Donald Blair - Vice President & Chief Marketing Officer

    Donald Blair, the Vice President & Chief Marketing Officer at Eastman, directs the company's global marketing strategies and brand development initiatives. Blair oversees market research, product positioning, and customer engagement to drive demand and enhance Eastman's market presence. This leadership role is essential for understanding market trends and translating them into effective marketing campaigns across various industries. Blair's focus includes building strong brand equity and fostering customer loyalty through innovative marketing approaches. By leading marketing efforts and championing customer-centric strategies, Donald Blair significantly contributes to Eastman's commercial success and market penetration.

    Adrian Holt - Chief Human Resources Officer

    Adrian Holt, the Chief Human Resources Officer at Eastman, leads the company's global human capital strategy and talent management initiatives. Holt oversees all aspects of HR, including recruitment, employee development, compensation, and organizational culture, ensuring a high-performing and engaged workforce. This position is vital for attracting and retaining top talent, fostering a diverse and inclusive work environment, and aligning HR practices with Eastman's business objectives. Holt's leadership focuses on building a strong organizational foundation that supports innovation and operational excellence. By championing employee well-being and professional growth, Adrian Holt ensures Eastman cultivates a motivated and skilled team.

    Ibrahim Heiba - Chief Medical Officer

    Ibrahim Heiba, the Chief Medical Officer at Eastman, provides critical medical and health expertise across the organization. Heiba oversees health and safety protocols, ensuring compliance with industry regulations and promoting employee well-being. This role is essential for managing occupational health programs and addressing health-related challenges within the company's operations. Heiba's guidance supports Eastman's commitment to a safe working environment and responsible corporate citizenship. By applying medical knowledge to operational contexts, Ibrahim Heiba contributes to maintaining a healthy and productive workforce.

    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 10 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, Case (Coatings, Adhesives, Sealants & Elastomers), President, Chemical Intermediates & Fibers Division.