HSC Executive and Leadership Team

May, 2026

Leadership Overview

HSC has 5 executives leading key functions including strategy, operations, finance, technology, and human capital.

Driven by innovation, HSC is dedicated to providing hyper-pure polysilicon, essential for the semiconductor industry, impacting global technology and daily life.

Leadership Roles at HSC

  • Chief Financial Officer - Michael Moen
  • Chief Operating Officer - Fernando Signorini
  • Chief of Staff - Harry Mika
  • Chief Information Officer - Kirk Royster
  • Chief Human Resources Officer - Barbara Metcalf
  • Michael Moen - Chief Financial Officer

    Michael Moen, the Chief Financial Officer at HSC, directs all financial planning, accounting, and reporting activities for the organization. Moen manages the company's fiscal health, overseeing budgeting, forecasting, and investment strategies to ensure sustainable growth and profitability. This critical role involves managing financial risks, optimizing capital structure, and securing funding to support HSC's operational expansion and technological advancements. Michael Moen provides strategic financial guidance to the executive team, ensuring alignment with the company's long-term objectives. By analyzing market trends and financial performance, Moen drives initiatives aimed at enhancing shareholder value and maintaining financial stability. The Chief Financial Officer's responsibilities include overseeing treasury operations, managing relationships with financial institutions, and ensuring compliance with all relevant financial regulations. Through meticulous financial oversight, Michael Moen plays a pivotal role in supporting HSC's position as a key global supplier of hyper-pure polysilicon.
    Michael Moen

    Fernando Signorini - Chief Operating Officer

    Fernando Signorini, the Chief Operating Officer at HSC, oversees all manufacturing and operational functions critical to the production of hyper-pure polysilicon. Signorini directs the company's global supply chain, ensuring efficient procurement of raw materials and timely delivery of finished products to semiconductor manufacturers worldwide. This leadership position involves managing production facilities, implementing advanced manufacturing techniques, and driving operational excellence to maintain HSC's status as a leading global provider. Fernando Signorini is responsible for optimizing production yields, enhancing quality control measures, and ensuring compliance with stringent industry standards. By focusing on process improvement and technological integration within the manufacturing environment, Signorini directly supports HSC's mission to supply essential components for electronic devices. The Chief Operating Officer's strategic focus includes scaling operations to meet increasing market demand and maintaining HSC's competitive edge through operational efficiency and innovation.
    Fernando Signorini

    Harry Mika - Chief of Staff

    Harry Mika, the Chief of Staff at HSC, directs strategic initiatives and operational alignment across the organization. Mika ensures seamless execution of corporate objectives by facilitating communication between executive leadership and various departments. This role involves managing key projects and driving cross-functional collaboration to enhance overall business performance. Mika's oversight extends to optimizing internal processes and supporting the Chief Executive Officer in high-level decision-making. By coordinating strategic planning sessions and monitoring progress against key performance indicators, Harry Mika directly contributes to HSC's market leadership in hyper-pure polysilicon production. The Chief of Staff's responsibilities include advising on organizational structure and resource allocation to maximize efficiency and support long-term growth strategies. Mika's focus remains on translating the company's vision into actionable plans that reinforce HSC's position as a critical supplier for the global semiconductor industry.

    Kirk Royster - Chief Information Officer

    Kirk Royster, the Chief Information Officer at HSC, leads the company's information technology strategy and infrastructure development. Royster oversees the implementation and management of all IT systems, ensuring robust cybersecurity measures and efficient data management to support HSC's global operations. This role involves driving digital transformation initiatives, enhancing technological capabilities, and ensuring that IT systems align with business objectives. Kirk Royster is responsible for managing the IT budget, evaluating new technologies, and fostering innovation within the technology department. By optimizing the company's digital landscape, Royster directly contributes to operational efficiency and the secure handling of sensitive information. The Chief Information Officer's focus includes developing scalable IT solutions that support HSC's growth and its role as a leading provider of hyper-pure polysilicon for the semiconductor industry. Royster ensures that technology infrastructure empowers employees and enhances overall business performance.

    Barbara Metcalf - Chief Human Resources Officer

    Barbara Metcalf, the Chief Human Resources Officer at HSC, directs all human capital management strategies and initiatives. Metcalf oversees talent acquisition, employee development, compensation and benefits, and organizational culture to foster a high-performing workforce. This leadership position involves ensuring that HR policies and practices support HSC's business goals and promote a safe, inclusive, and productive work environment. Barbara Metcalf is responsible for developing and implementing programs that enhance employee engagement, retention, and overall well-being. By aligning HR strategies with the company's mission, Metcalf directly contributes to HSC's ability to attract and retain top talent in the competitive semiconductor materials industry. The Chief Human Resources Officer's focus includes driving initiatives that support employee growth and development, ensuring compliance with labor laws, and championing diversity and inclusion across the organization. Barbara Metcalf plays a key role in building a strong organizational foundation that supports HSC's continued success.

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    Frequently Asked Questions Regarding HSC Top Executives and Leadership Team

    Who leads HSC?
    HSC is led by Michael Moen (Chief Financial Officer), along with executives such as Fernando Signorini (Chief Operating Officer) and Harry Mika (Chief of Staff).
    Who is part of HSC’s executive team?
    The executive team of HSC includes leaders such as Michael Moen (Chief Financial Officer), Fernando Signorini (Chief Operating Officer), Harry Mika (Chief of Staff) and other senior executives.
    How many executives does HSC have?
    HSC has 5 executives leading key business areas.
    What roles are included in HSC’s leadership team?
    The leadership team of HSC includes roles such as Chief Financial Officer, Chief Operating Officer, Chief of Staff, Chief Information Officer, Chief Human Resources Officer.