SI Group Executive and Leadership Team

September, 2026

Leadership Overview

SI Group has 6 executives leading key functions including strategy, operations, regional management, information technology, finance, and global marketing.

Focused on chemical manufacturing excellence, SI Group delivers performance additives and pharmaceutical ingredients while maintaining a commitment to innovation and sustainable process solutions across global markets.

Leadership Roles at SI Group

  • Chief Executive Officer - Bella Le
  • President & Chief Executive Officer - John Steitz
  • Chief Financial Officer - Helio Ono
  • Chief Information Officer - Mukund Devanathan
  • Chief Marketing Officer & Global Director, Business - Tri Nguyen
  • Managing Director (Brazil) - Joao Porto
  • Bella Le - Chief Executive Officer

    Bella Le, the Chief Executive Officer at SI Group, directs the overarching corporate strategy for the chemical manufacturing enterprise. Overseeing the development of performance additives and chemical intermediates, the Chief Executive Officer ensures alignment between production capabilities and market demands. This leadership role involves managing complex stakeholder relationships and driving long-term growth initiatives across North American and international markets. By optimizing organizational efficiency, Bella Le strengthens the competitive position of the company within the global chemical sector. The Chief Executive Officer maintains a focus on operational excellence, ensuring that all manufacturing processes adhere to rigorous quality standards. Through strategic oversight of the executive team, the Chief Executive Officer fosters a culture of innovation. Ultimately, Le secures the future trajectory of the organization by balancing immediate performance requirements with sustainable, long-term development goals for the entire chemical portfolio.

    John Steitz - President & Chief Executive Officer

    John Steitz, the President & Chief Executive Officer at SI Group, architects the high-level business vision for the organization. Focusing on the expansion of pharmaceutical ingredients and process solutions, the President & Chief Executive Officer drives the execution of large-scale industrial projects. This leadership role requires constant collaboration with the Board to refine the corporate mission and enhance market impact. By streamlining internal workflows, the President & Chief Executive Officer improves the agility of the manufacturing operations. John Steitz monitors global economic trends to identify new opportunities for chemical intermediate production. The President & Chief Executive Officer ensures that all business units operate with maximum efficiency to support the broader corporate objectives. Through disciplined management of resources, Steitz maintains the financial health of the company while pushing for technological advancements in chemical manufacturing that define the industry standard.
    John Steitz

    Helio Ono - Chief Financial Officer

    Helio Ono, the Chief Financial Officer at SI Group, directs the financial strategy and capital allocation for the chemical manufacturing business. Overseeing the fiscal health of the organization, the Chief Financial Officer manages budgeting, financial reporting, and investment planning for performance additives and pharmaceutical ingredients. This leadership role involves analyzing market data to support strategic growth and ensuring the long-term financial stability of the company. By optimizing the cost structure of manufacturing operations, the Chief Financial Officer improves overall profitability. Helio Ono works closely with the executive team to evaluate the financial feasibility of new process solutions and market expansions. The Chief Financial Officer maintains rigorous internal controls to ensure compliance and transparency across all global operations. Through disciplined financial management, Ono provides the necessary resources to fuel innovation and sustain the market leadership of the company in the chemical sector.

    Mukund Devanathan - Chief Information Officer

    Mukund Devanathan, the Chief Information Officer at SI Group, architects the digital infrastructure supporting the global chemical manufacturing operations. Overseeing the integration of advanced data systems, the Chief Information Officer ensures that manufacturing processes benefit from real-time analytics and secure information management. This leadership role involves protecting critical intellectual property and optimizing the digital tools used for chemical intermediate production. By implementing scalable technology solutions, the Chief Information Officer enhances the operational efficiency of the entire organization. Mukund Devanathan collaborates with other C-suite leaders to align digital transformation efforts with the strategic goals of the company. The Chief Information Officer manages the cybersecurity posture to mitigate risks across all international facilities. Through the deployment of robust IT frameworks, Devanathan supports the data-driven decision-making processes that allow the company to maintain a competitive edge in the complex chemical manufacturing landscape.
    Mukund Devanathan

    Tri Nguyen - Chief Marketing Officer & Global Director, Business

    Tri Nguyen, the Chief Marketing Officer & Global Director, Business at SI Group, architects the global brand strategy and market positioning for the chemical manufacturing portfolio. Overseeing the commercialization of performance additives and process solutions, the Chief Marketing Officer & Global Director, Business ensures that the value proposition of the company reaches key industrial clients. This leadership role involves identifying emerging market trends and tailoring the product messaging to meet the specific requirements of the pharmaceutical and chemical sectors. By driving global business development initiatives, the Chief Marketing Officer & Global Director, Business expands the customer base and increases market share. Tri Nguyen collaborates with the sales and technical teams to align product offerings with customer needs. The Chief Marketing Officer & Global Director, Business manages the global marketing budget to maximize the impact of promotional campaigns. Through strategic market analysis, Nguyen secures the reputation of the company as a leader in chemical innovation.

    Joao Porto - Managing Director (Brazil)

    Joao Porto, the Managing Director (Brazil) at SI Group, oversees all regional operations and manufacturing activities within the South American market. Directing the local production of performance additives, the Managing Director (Brazil) ensures that regional output meets the specific needs of the local chemical industry. This leadership role involves managing supply chain logistics and maintaining compliance with regional regulatory frameworks. By optimizing local manufacturing processes, the Managing Director (Brazil) contributes to the overall efficiency of the global supply network. Joao Porto coordinates with the executive team to align regional performance with the broader corporate strategy. The Managing Director (Brazil) fosters strong relationships with local partners to expand the market reach of the company. Through consistent oversight of regional assets, Porto drives growth and operational stability, ensuring that the South American division remains a vital component of the global manufacturing footprint.

    Frequently Asked Questions Regarding SI Group Top Executives and Leadership Team

    Who leads SI Group?
    SI Group is led by Bella Le (Chief Executive Officer), along with executives such as John Steitz (President & Chief Executive Officer) and Helio Ono (Chief Financial Officer).
    Who is part of SI Group’s executive team?
    The executive team of SI Group includes leaders such as Bella Le (Chief Executive Officer), John Steitz (President & Chief Executive Officer), Helio Ono (Chief Financial Officer) and other senior executives.
    How many executives does SI Group have?
    SI Group has 6 executives leading key business areas.
    What roles are included in SI Group’s leadership team?
    The leadership team of SI Group includes roles such as Chief Executive Officer, President & Chief Executive Officer, Chief Financial Officer, Chief Information Officer, Chief Marketing Officer & Global Director, Business.