TPC Group Executive and Leadership Team

October, 2026

Leadership Overview

TPC Group has 9 executives leading key functions including strategy, operations, financial management, and human resources.

Focused on delivering high-value petrochemical solutions, TPC Group maintains a commitment to operational excellence and safety across the Gulf Coast. This leadership team drives sustainable growth through innovation in C4 hydrocarbon processing and critical infrastructure logistics.

Leadership Roles at TPC Group

  • Chief Executive Officer - Edward Dineen
  • Chairman & Chief Executive Officer - Michael McDonnell
  • Chief Financial Officer - Carl Struck
  • Chief Financial Officer & Senior VP - Daniel Valenzuela
  • Chief Operating Officer - Efrain Perez
  • President - Todd Knowles
  • Senior VP & General Counsel - Patrick Hurt
  • Senior VP, Technology & Engineering - Peggy Macatangay
  • Vice President, Human Resources - Scott Dutton
  • Edward Dineen - Chief Executive Officer

    Edward Dineen, the Chief Executive Officer at TPC Group, directs the overarching corporate strategy and long-term vision for the organization. Overseeing the production of value-added petrochemical products, Dineen ensures alignment between manufacturing capabilities and market demands across the Gulf Coast. This leadership role involves constant engagement with the Board to optimize capital allocation and drive sustainable growth. By prioritizing safety and operational efficiency, the Chief Executive Officer maintains the competitive edge of the company within the complex chemical manufacturing landscape. Edward Dineen fosters a culture of innovation that supports the development of C4 hydrocarbon derivatives. Through rigorous oversight of organizational performance, the Chief Executive Officer secures the financial health and market position of the firm. Ultimately, Dineen guides the enterprise toward achieving ambitious performance targets while upholding the highest standards of industrial excellence and environmental responsibility.
    Edward Dineen

    Michael McDonnell - Chairman & Chief Executive Officer

    Michael McDonnell, the Chairman & Chief Executive Officer at TPC Group, governs the strategic direction and board-level initiatives for the entire organization. Managing the intersection of corporate governance and operational execution, McDonnell ensures that the company maintains its status as a premier provider of petrochemical raw materials. This leadership role involves coordinating with executive peers to refine the business model and expand the reach of logistics services throughout the Gulf Coast region. By focusing on high-level market positioning, the Chairman & Chief Executive Officer drives the long-term value creation for stakeholders. Michael McDonnell oversees the integration of complex supply chain requirements with manufacturing output to maximize efficiency. Through decisive leadership, the Chairman & Chief Executive Officer navigates the evolving regulatory environment and market fluctuations. Ultimately, McDonnell strengthens the organizational foundation to support sustained growth and operational stability in the competitive chemical industry.

    Carl Struck - Chief Financial Officer

    Carl Struck, the Chief Financial Officer at TPC Group, directs the financial planning, reporting, and risk management functions for the organization. Overseeing the capital structure and liquidity requirements, Struck ensures that the company maintains the necessary resources to support its petrochemical manufacturing and logistics operations. This leadership role involves analyzing market trends to inform investment decisions and long-term financial strategy. By implementing robust internal controls, the Chief Financial Officer safeguards the assets of the firm while promoting transparency in all fiscal activities. Carl Struck collaborates with other executive leaders to align budgetary priorities with the broader corporate mission. Through meticulous management of financial performance, the Chief Financial Officer supports the growth initiatives of the company across the Gulf Coast. Ultimately, Struck provides the analytical foundation required to navigate the complexities of the chemical industry and ensure enduring financial health.

    Daniel Valenzuela - Chief Financial Officer & Senior VP

    Daniel Valenzuela, the Chief Financial Officer & Senior VP at TPC Group, manages the strategic financial operations and corporate development activities for the enterprise. Overseeing the integration of financial data with operational metrics, Valenzuela ensures that the company optimizes its investment in petrochemical infrastructure and logistics services. This leadership role involves evaluating potential growth opportunities and managing the capital allocation process to enhance shareholder value. By driving fiscal discipline, the Chief Financial Officer & Senior VP supports the expansion of the market footprint across the Gulf Coast. Daniel Valenzuela works closely with the executive team to translate complex financial insights into actionable business strategies. Through the oversight of financial reporting and treasury functions, the Chief Financial Officer & Senior VP maintains the stability of the organization. Ultimately, Valenzuela secures the financial resources necessary to sustain the competitive advantage of the company in the global chemical market.
    Daniel Valenzuela

    Efrain Perez - Chief Operating Officer

    Efrain Perez, the Chief Operating Officer at TPC Group, manages the daily manufacturing processes and logistics infrastructure that define the company's market presence. Overseeing the production of C4 hydrocarbons, Perez ensures that all facilities operate at peak efficiency while adhering to strict safety protocols. This leadership role involves coordinating with engineering teams to optimize plant performance and reduce downtime across the Gulf Coast operations. By streamlining the supply chain, the Chief Operating Officer facilitates the reliable delivery of value-added products to diverse industrial clients. Efrain Perez monitors key performance indicators to identify opportunities for process improvements and cost reduction. Through active management of site-level activities, the Chief Operating Officer maintains the operational integrity of the entire manufacturing network. Ultimately, Perez drives the execution of production goals to ensure the company meets its commitments to customers and stakeholders alike.

    Todd Knowles - President

    Todd Knowles, the President at TPC Group, leads the execution of business unit objectives and oversees the day-to-day management of the company's core divisions. Focusing on the production of value-added petrochemical products, Knowles ensures that the organization meets its performance targets while maintaining high standards of quality and safety. This leadership role involves coordinating cross-functional teams to streamline operations and improve service delivery across the Gulf Coast. By fostering a culture of accountability, the President drives the implementation of strategic initiatives that enhance the market position of the firm. Todd Knowles monitors industry developments to adapt the business model to changing market conditions. Through the oversight of departmental performance, the President ensures that all business units contribute effectively to the overall success of the company. Ultimately, Knowles maintains the operational momentum required to achieve long-term growth and customer satisfaction in the chemical manufacturing sector.

    Patrick Hurt - Senior VP & General Counsel

    Patrick Hurt, the Senior VP & General Counsel at TPC Group, directs the legal strategy and regulatory compliance framework for the entire organization. Overseeing the management of legal risks associated with petrochemical manufacturing and logistics, Hurt ensures that the company operates within the bounds of all applicable laws and industry standards. This leadership role involves providing counsel on corporate governance, contract negotiations, and environmental regulations across the Gulf Coast. By mitigating potential liabilities, the Senior VP & General Counsel protects the reputation and assets of the firm. Patrick Hurt collaborates with executive leadership to navigate complex legal challenges and support the strategic objectives of the company. Through the oversight of legal affairs, the Senior VP & General Counsel facilitates the smooth execution of business operations. Ultimately, Hurt provides the necessary legal guidance to ensure the company maintains its commitment to ethical conduct and regulatory excellence.

    Peggy Macatangay - Senior VP, Technology & Engineering

    Peggy Macatangay, the Senior VP, Technology & Engineering at TPC Group, leads the technical innovation and engineering initiatives that drive the production capabilities of the company. Overseeing the development of advanced processes for C4 hydrocarbon derivatives, Macatangay ensures that the manufacturing facilities utilize cutting-edge technology to maximize output and efficiency. This leadership role involves managing the engineering teams responsible for infrastructure maintenance and capital projects across the Gulf Coast. By prioritizing technical excellence, the Senior VP, Technology & Engineering supports the ability of the firm to deliver high-value products to the market. Peggy Macatangay collaborates with operations to implement process improvements that enhance safety and environmental performance. Through the oversight of technology roadmaps, the Senior VP, Technology & Engineering secures the long-term competitiveness of the organization. Ultimately, Macatangay drives the technical advancements necessary to sustain the leadership position of the company in the petrochemical industry.

    Scott Dutton - Vice President, Human Resources

    Scott Dutton, the Vice President, Human Resources at TPC Group, directs the talent management, organizational development, and employee relations strategies for the company. Overseeing the recruitment and retention of a skilled workforce, Dutton ensures that the organization possesses the human capital necessary to support its petrochemical manufacturing and logistics operations. This leadership role involves designing programs that promote safety, professional growth, and a positive workplace culture across the Gulf Coast. By aligning human resources initiatives with the broader business strategy, the Vice President, Human Resources supports the overall performance and productivity of the firm. Scott Dutton manages the implementation of compensation and benefits structures that attract top talent in the competitive chemical industry. Through the oversight of workforce planning, the Vice President, Human Resources ensures that the company maintains a high-performing team. Ultimately, Dutton fosters an environment that empowers employees to contribute to the long-term success of the organization.

    Frequently Asked Questions Regarding TPC Group Top Executives and Leadership Team

    Who leads TPC Group?
    TPC Group is led by Edward Dineen (Chief Executive Officer), along with executives such as Michael McDonnell (Chairman & Chief Executive Officer) and Carl Struck (Chief Financial Officer).
    Who is part of TPC Group’s executive team?
    The executive team of TPC Group includes leaders such as Edward Dineen (Chief Executive Officer), Michael McDonnell (Chairman & Chief Executive Officer), Carl Struck (Chief Financial Officer) and other senior executives.
    How many executives does TPC Group have?
    TPC Group has 9 executives leading key business areas.
    What roles are included in TPC Group’s leadership team?
    The leadership team of TPC Group includes roles such as Chief Executive Officer, Chairman & Chief Executive Officer, Chief Financial Officer, Chief Financial Officer & Senior VP, Chief Operating Officer.