Minerals Technologies Executive and Leadership Team

November, 2026

Leadership Overview

Minerals Technologies has 9 executives leading key functions including strategy, financial oversight, regional management, and business unit operations.

Focused on delivering high-quality mineral-based solutions for global industrial applications, Minerals Technologies prioritizes sustainable innovation and technological advancement to drive long-term value across the construction, energy, and personal care sectors.

Leadership Roles at Minerals Technologies

  • Chief Executive Officer - Douglas Dietrich
  • Chairman & Chief Executive Officer - Joseph Muscari
  • Chief Financial Officer, Business Unit - Kamil Sume
  • BU President - Chadley Trent
  • President, Environmental & Infrastructure - Sarah Nugent
  • BU President - MINTEQ International Inc. - Robert Schneider
  • Group President - Brett Argirakis
  • President, Household & Personal Care Business Segment - JoAnn Coyne
  • Managing Director - Kitisak Ngamjaruskochakorn
  • Douglas Dietrich - Chief Executive Officer

    Douglas Dietrich, the Chief Executive Officer at Minerals Technologies, directs the overarching corporate strategy and global operational vision. Dietrich manages the integration of mineral-based product development with market-specific industrial requirements, ensuring the company maintains a competitive edge in construction and energy sectors. By aligning internal manufacturing capabilities with evolving consumer demands, the Chief Executive Officer fosters a culture of sustainable growth and technological excellence. Douglas Dietrich oversees the executive leadership team to ensure consistent performance across all international business segments. This leadership role involves constant evaluation of market trends to optimize resource allocation and capital investment. Through rigorous focus on operational efficiency, the Chief Executive Officer drives the organization toward achieving long-term financial objectives while maintaining high standards for product quality and environmental responsibility in every global market served.
    Douglas Dietrich

    Joseph Muscari - Chairman & Chief Executive Officer

    Joseph Muscari, the Chairman & Chief Executive Officer at Minerals Technologies, governs the board and executes high-level strategic initiatives. Muscari provides critical oversight for the company's global expansion efforts, ensuring that corporate governance aligns with the complex demands of the specialty minerals industry. As the Chairman & Chief Executive Officer, Muscari directs the long-term vision for product innovation, specifically targeting advancements in coatings and personal care applications. This role requires constant collaboration with the board to refine the company's market position and ensure sustainable development practices remain central to the business model. Joseph Muscari monitors the performance of diverse industrial segments to guarantee that operational outputs meet stringent quality benchmarks. By balancing shareholder interests with operational realities, Muscari secures the stability and future growth trajectory of the entire organization across all international territories.

    Kamil Sume - Chief Financial Officer, Business Unit

    Kamil Sume, the Chief Financial Officer, Business Unit at Minerals Technologies, manages the fiscal health and budgetary discipline of specific operational segments. Sume directs financial planning, analysis, and reporting to ensure that business units maintain profitability while investing in necessary technological upgrades. As the Chief Financial Officer, Business Unit, Sume evaluates the economic viability of new mineral-based product lines and monitors cost structures across manufacturing facilities. This role involves close coordination with other C-suite leaders to align financial resources with strategic growth targets in the coatings and personal care markets. Kamil Sume implements rigorous financial controls to mitigate risks and optimize capital deployment across the business unit. By providing accurate financial insights, the Chief Financial Officer, Business Unit supports informed decision-making that enhances the company's market position and ensures the long-term sustainability of industrial operations.

    Chadley Trent - BU President

    Chadley Trent, the BU President at Minerals Technologies, leads the operational execution and market strategy for a core business unit. Trent directs the development and manufacturing of specialized mineral products, ensuring that output meets the precise needs of industrial clients. As the BU President, Trent oversees the daily management of production facilities and coordinates with sales teams to expand market share in the energy and construction sectors. This leadership role involves driving innovation within the product portfolio to maintain a competitive advantage through superior material quality. Chadley Trent monitors operational metrics to ensure efficiency and safety standards remain at the highest levels. By fostering collaboration between research and development and manufacturing teams, the BU President ensures that the company delivers consistent value to customers while achieving the financial targets set by the executive leadership team.

    Sarah Nugent - President, Environmental & Infrastructure

    Sarah Nugent, the President, Environmental & Infrastructure at Minerals Technologies, directs the strategic focus on sustainable solutions for large-scale infrastructure projects. Nugent manages the development of mineral-based products designed to improve environmental outcomes in construction and industrial applications. As the President, Environmental & Infrastructure, Nugent oversees the integration of green technologies into the company's core offerings, ensuring alignment with global sustainability trends. This role involves collaborating with engineering teams to solve complex infrastructure challenges while maintaining high performance standards. Sarah Nugent monitors the regulatory landscape to ensure that all environmental initiatives comply with international standards and support the company's commitment to responsible manufacturing. By driving growth in the infrastructure segment, the President, Environmental & Infrastructure enhances the company's reputation as a leader in sustainable industrial materials and contributes significantly to the overall corporate mission.

    Robert Schneider - BU President - MINTEQ International Inc.

    Robert Schneider, the BU President - MINTEQ International Inc. at Minerals Technologies, leads the specialized operations of the MINTEQ division. Schneider directs the production and marketing of high-performance refractory products and services for the steel and metal industries. As the BU President - MINTEQ International Inc., Schneider oversees global service teams that provide critical support to industrial clients, ensuring maximum operational uptime and efficiency. This role involves managing complex supply chains and technical service networks to maintain the company's leadership in the refractory market. Robert Schneider coordinates with research teams to develop next-generation materials that withstand extreme industrial environments. By focusing on technical excellence and customer-centric service, the BU President - MINTEQ International Inc. drives revenue growth and strengthens the company's presence in the global metals sector, ensuring that MINTEQ remains a vital component of the broader corporate strategy.

    Brett Argirakis - Group President

    Brett Argirakis, the Group President at Minerals Technologies, oversees a portfolio of business units to ensure cohesive strategic execution across diverse industrial markets. Argirakis directs the alignment of operational goals with the company's overarching mission of technological advancement and sustainable growth. As the Group President, Argirakis manages the performance of multiple segments, facilitating resource sharing and cross-functional collaboration to improve overall efficiency. This leadership role involves mentoring business unit heads and ensuring that each division contributes effectively to the company's financial and market objectives. Brett Argirakis monitors market shifts in the coatings and personal care industries to proactively adjust group strategies. By maintaining a high-level view of operations, the Group President ensures that the organization remains agile and responsive to changing industrial demands, ultimately driving consistent value for shareholders and customers alike.

    JoAnn Coyne - President, Household & Personal Care Business Segment

    JoAnn Coyne, the President, Household & Personal Care Business Segment at Minerals Technologies, leads the development and commercialization of mineral-based ingredients for consumer goods. Coyne directs the innovation pipeline for personal care applications, ensuring that products meet the high standards of safety and performance required by global brands. As the President, Household & Personal Care Business Segment, Coyne oversees the marketing and sales strategies that drive growth in this consumer-facing sector. This role involves collaborating with research scientists to create unique formulations that provide functional benefits in household products. JoAnn Coyne monitors consumer trends and regulatory changes to ensure that the business segment remains at the forefront of the personal care industry. By focusing on quality and innovation, the President, Household & Personal Care Business Segment strengthens the company's market position and delivers essential materials that enhance everyday consumer experiences.

    Kitisak Ngamjaruskochakorn - Managing Director

    Kitisak Ngamjaruskochakorn, the Managing Director at Minerals Technologies, oversees regional operations and drives market penetration within key geographic territories. Ngamjaruskochakorn manages the local implementation of global manufacturing standards, ensuring that industrial clients receive consistent, high-quality mineral solutions. As the Managing Director, Ngamjaruskochakorn coordinates with cross-functional teams to streamline supply chain logistics and enhance service delivery for the construction and energy sectors. This leadership position involves identifying regional growth opportunities and adapting product offerings to meet specific local regulatory and consumer requirements. Kitisak Ngamjaruskochakorn maintains strong relationships with regional stakeholders to facilitate seamless business operations and support the company's broader sustainability goals. By optimizing local production workflows, the Managing Director directly contributes to the overall efficiency and profitability of the organization, ensuring that regional performance remains aligned with the corporate mission of technological advancement.

    Frequently Asked Questions Regarding Minerals Technologies Top Executives and Leadership Team

    Who leads Minerals Technologies?
    Minerals Technologies is led by Douglas Dietrich (Chief Executive Officer), along with executives such as Joseph Muscari (Chairman & Chief Executive Officer) and Kamil Sume (Chief Financial Officer, Business Unit).
    Who is part of Minerals Technologies’s executive team?
    The executive team of Minerals Technologies includes leaders such as Douglas Dietrich (Chief Executive Officer), Joseph Muscari (Chairman & Chief Executive Officer), Kamil Sume (Chief Financial Officer, Business Unit) and other senior executives.
    How many executives does Minerals Technologies have?
    Minerals Technologies has 9 executives leading key business areas.
    What roles are included in Minerals Technologies’s leadership team?
    The leadership team of Minerals Technologies includes roles such as Chief Executive Officer, Chairman & Chief Executive Officer, Chief Financial Officer, Business Unit, BU President, President, Environmental & Infrastructure.