BENCHMARK ELECTRONICS INC

The Company's Sustainability Council is responsible for leading our sustainability strategy and monitoring our corporate social responsibility and environmental sustainability initiatives. In addition, the Sustainability Council oversees Benchmark’s sustainability disclosures, including the production of its Sustainability Report (see www.bench.com/sustainability).The Sustainability Council includes cross-functional leadership and oversight from Finance, Operations, Human Resources, Facilities, Supply Chain, Marketing and Communications, Quality and Regulatory Compliance, and Legal. Additionally, six work groups have been established across the organization to work on Sustainability areas enterprise-wide and across business lines. These work groups include: a change management/communication work group, Responsible Business Alliance ("RBA)"/EcoVadis work group, a customer-focused work group, an environmental responsibility work group, a governance work group, and work groups for each of the four tenets of our ESG strategy: Environmental Responsibility, Our People, Our Community and Governance. The Nominating, Sustainability and Governance Committee of our Board of Directors oversees these efforts and assesses our performance against our agreed to objectives. The Company's Global Director of Sustainability, who leads programs to support our global sustainability strategy and further operationalize sustainability initiatives throughout our organization, reports to the SVP, General Counsel and Chief Legal Officer, with dotted line reporting to the VP, Quality Assurance Regulatory Affairs, and receives additional direction from the Sustainability Steering Committee. Through our sustainability reporting, we communicate transparently about how we prioritize and approach the topics most relevant to our business. Against this backdrop, we have, with the assistance of outside expertise, performed an assessment of key indicators and engaged with our internal and external stakeholders on sustainability topics to help further inform our future direction and priorities. The four tenets of our strategy are shown at right:

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Our commitment to these tenets is both a strategic and operational imperative as we build a sustainable infrastructure across the Company. Our four tenets arose from a priority-based approach to disclosure, in line with best practices. In the fall of 2023, Benchmark updated its sustainability strategy and priorities – examining a range of key stakeholders, including investors, customers, employees, and ESG rating organizations and by studying industry peers. Our analysis of sustainability topics continues to strive for alignment with each of the Global Reporting Initiative Standards, the Task Force on Climate-Related Financial Disclosures, the 17 United Nations Sustainable Development Goals, as well as the Sustainability Accounting Standards Board Electronic Manufacturing Services & Original Design Manufacturing Sustainability Accounting Standard.

SUSTAINABILITY OVERSIGHTThe Nominating, Sustainability and Governance Committee has direct oversight over the Company’s sustainability policies and programs. Our Sustainability Council has continued to expand our sustainability programs, and on February 27, 2025, we published our fourth Sustainability Report that includes Scope 1 and 2 Greenhouse Gas (GHG) emission data, explicit GHG targets, as well as waste metrics and energy consumption spanning a three-year period. The Company also updated the content of its sustainability webpage at www.bench.com/sustainability.We believe our Sustainability program achieves symmetry with the Company’s vision to positively impact lives by solving complex challenges with our customers, creating innovative products that no one imagined were possible. To this end, the Board is committed to overseeing Benchmark’s integration of sustainability principles throughout the enterprise and in our approach to governance.

ENVIRONMENTAL RESPONSIBILITYWe are committed to responsible environmental practices that include conservation of natural resources, pollution prevention and reduction of waste. We also strive to continually improve our operations and promote the health and safety of our workforce in compliance with all company, local, and federal standards.Our environmental strategy is based on mitigation and prevention. Specifically, we are minimizing our environmental impact through reducing the waste we send to landfills, purchasing environmentally responsible products, and proactively preventing needless internal waste. Our material sourcing strategy focuses on enhancing our ability to rapidly respond to changes in our customers’ requirements. We achieve this by effectively managing changes in our supply chain utilizing web-based interfaces and real-time supply chain management software products that allow us to scale operations to meet our customers’ increasingly environmentally conscious needs.Our Environmental Management System ("EMS") is managed at each site by a site-environmental, health and safety ("EHS") administrator, who ensures that the system is implemented and maintained. Elements of the Company’s activities, products, and services at that site that may interact with the environment are identified, and the likelihood and potential severity of environmental impact is determined. Notably: •All Benchmark manufacturing facilities are certified to ISO 14001:2015.•Benchmark has implemented a well-developed environmental data collection system as part of the EMS, covering waste, water, energy, and emissions data from our sites. As part of our increased focus on environmental sustainability, this system has allowed us to consolidate the reporting of all internal monitoring and tracking programs at the corporate level, as one of our top enterprise-wide initiatives.

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Benchmark’s environmental strategy focuses on the following areas:

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Energy Efficiency – Benchmark is continuously researching and designing innovative ways to save energy, such as utilizing high efficiency electrical equipment including LED lighting and HVAC units. Moreover, as mentioned above, all Benchmark manufacturing facilities are certified to ISO 14001:2015, the international standard that specifies requirements for an effective environmental management system.

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Recycling – Benchmark’s efforts in this area include reusing and recycling materials, collaborating with customers on recyclable product packaging and purchasing recycled materials for production when feasible, utilizing recycling collection bins for batteries, aluminum, plastic, and paper in our offices, and recycling toner cartridges, and computer hardware.

In addition, we are continuing to incorporate the following at our facilities where feasible:

For more information on our sustainability program or to read our 2024 Sustainability Report featuring Scope 1 and Scope 2 GHG emissions, please visit our website www.bench.com/sustainability

OUR PEOPLE

Beyond upholding the principle of human rights, worker safety and observing fair labor practices within our organization, we are committed to creating a workplace where every team member can thrive, build a fulfilling career, and realize their full potential. Our vision is to deliver an employee experience that inspires, empowers, and drives meaningful impact. We understand that when employees are engaged and valued, they shape a brighter future for their communities, our customers, and our business. Inclusion is fundamental to our success. Embracing diverse perspectives and viewpoints fuels innovation, enhances decision-making, and drives outstanding financial performance. These principles not only strengthen our industry leadership but also create a vibrant, welcoming workplace where everyone thrives.

Our commitment to inclusion starts at the top with the Human Capital and Compensation Committee of the Company’s Board of Directors, which regularly receives updates from our Chief Human Resources Officer regarding the Company’s progress toward its human capital and inclusion initiatives. At the management level, our Vice President of Talent & Learning oversees our inclusion strategy, ensuring that inclusive leadership practices are embedded throughout the Company. This key role reports directly to the Chief Human Resources Officer, reinforcing our focus on accountability and impact.

To underpin our commitment to inclusion, in 2022, we established the Inclusion Council, a vital driver of Benchmark’s inclusive culture. This diverse group of 24 members, refreshed annually, represents a broad spectrum of roles, functions, and regions within the Company. Meeting monthly, the Council leads key initiatives, hosts impactful learning events, and champions cultural activities that strengthen belonging and inclusion across Benchmark.

The Company conducted its fourth annual global engagement and inclusion survey in 2024 to elicit feedback from employees and is developing action plans for continuous improvement in the areas of reward and recognition, communication and inclusion, and learning and development. We also conducted our annual risk assessment, ultimately identifying top risk categories for action. The 2024 risk assessment drew on surveys and interviews with an expanded set of key leaders across the Company, including the full Board of Directors.

We believe that providing competitive total compensation, benefits and wellness resources to our people is vital to ensuring we attract and retain the best team in the industry. We regularly review our compensation model to ensure fair and inclusive pay practices. We provide a comprehensive and competitive benefits package that supports the physical and mental well-being of our workforce, including

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a focus on well-being. Common U.S. benefits offered include medical, wellness, dental and vision benefits, a 401(k)-match program, survivor benefits, and disability coverage.

Additionally, we are committed to ensuring that proper working conditions exist for the health and safety of our employees. Our commitment includes:

OUR COMMUNITYWe are committed to having a positive impact on the communities in which we do business and in which our employees live. We strengthen our communities by supporting individual employees who volunteer with local community groups and by direct participation in philanthropic initiatives.Benchmark is focused on making a positive impact in our communities through charity and fundraising, educational outreach, environment protection, hosting events to advance inclusion in corporate leadership, and local community development through various support groups, food drives, and partnerships with local schools and universities.

GOVERNANCEBenchmark is committed to achieving excellence in our governance practices to establish a strong foundation for the long-term success of the Company. We emphasize a culture of accountability and conduct our business in a manner that is fair, ethical, and responsible to earn the trust of our stakeholders, including customers, employees, investors, partners, and regulators. We also maintain robust risk management programs to ensure compliance with applicable laws and regulations governing ethical business practices.We believe that good corporate governance provides a strong foundation and is essential to the long-term success of the Company. Our Board of Directors sets the tone for the Company and has implemented strong governance practices, including independent directors and a strong commitment to diverse skills, backgrounds and experiences, as well as inclusion. Our Board of Directors includes three standing committees: the Audit Committee, the Human Capital and Compensation Committee, and the Nominating, Sustainability and Governance Committee. The membership of these standing committees is comprised entirely of independent directors. The Board is also focused on and devotes substantial attention to matters of corporate responsibility and sustainability, with direct oversight and sponsorship by the Nominating, Sustainability and Governance Committee. The Nominating, Sustainability and Governance Committee oversees our governance practices including:

•Commitment to conducting its business in a manner that is fair, ethical, and responsible and compliant with all applicable laws and regulations.

•Regular review and, as appropriate, the updating of key policy documents in light of current regulations and best practices.

•Compliance and education, where 96% of Benchmark employees participated in ethics and compliance training.

•Ensuring the importance of considering potential director candidates with diverse backgrounds, skills and experiences, among other factors.

•In conjunction with the Human Capital and Compensation Committee, ensuring that management fulfills its ultimate responsibility to help create and foster the best possible work environment for everyone in the organization. To this end, we implemented a “Speak Up!” campaign designed to promote a positive and ethical organizational culture. We believe that each team member, regardless of position, shares in this responsibility, and we encourage all of them to “Speak Up!” with questions or concerns about actual or potential ethical issues, questions about company policies and to address any other concerns.

•To facilitate open and honest communication, we have a user-friendly web portal and Helpline for the reporting of concerns. These tools include local phone numbers and language support in over 150 native languages.

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In addition to Benchmark’s robust governance policies, Benchmark endorses the RBA Code of Conduct, which includes provisions derived from key international human rights standards including the International Labour Organization Declaration on Fundamental Principles and Rights at Work and the UN Universal Declaration of Human Rights. We also endorse EcoVadis, a provider of sustainability ratings, intelligence and collaborative performance improvement tools for global supply chains that evaluates criteria across four themes: environment, fair labor practices, ethics/fair business practices and supply chains. Our accounting, financial, and IT reporting functions are subject to rigorous controls, and the Audit Committee of our Board actively oversees our enterprise risk management practices. Under this process, our internal audit team coordinates with functional leaders throughout the business to identify, monitor and mitigate material risks.