SCORE™ ABOUT CUSTOMER CENTER SUPPLIER CENTER QUALITY INVESTORS CONTACT Compliance/Sustainability Our commitment to social responsibility Our Commitment to Social Responsibility At SigmaTron International, we understand that maintaining ethical business practices, treating our employees with dignity and conducting our business in environmentally responsible ways is as important as delivering superior quality products. To that end, we embrace the following values: Human Dignity We feel that every employee contributes to our success. Our work environments meet or exceed legal requirements in every region in which we do business. We do not tolerate employee harassment, discrimination or abuse in any form. Forced, involuntary or trafficked labor is not tolerated in any form in our facilities. Ethics We do not tolerate corruption, bribery or unethical business practices in any form within SigmaTron International and encourage the same behavior from our supply chain in their business practices. Environmental Compliance We meet or exceed environmental and business regulations in the regions in which we do operations. We also maintain a system that facilitates compliance with applicable regulatory material content and sourcing reporting requirements. Visibility/Transparency We see ourselves as an extension of our customers’ manufacturing operations. In some cases, we are our customers’ total manufacturing operation. We’ve created proprietary systems to support 24/7 visibility into project status to ensure that customers have the critical information they need to make decisions when they need it. Additionally, our status as a publicly traded company ensures financial transparency. Gary R. Fairhead President and Chief Executive Officer Related Disclosures SigmaTron International’s Conflict Minerals Policy SigmaTron shares concerns about the use of resources to fund armed conflict in the Democratic Republic of the Congo and is intent on making sure its activities are not contributing to the issue. SigmaTron is working to comply with HR4173, the Dodd-Frank Financial Reform Bill Section 1502(b) requiring all US stock listed companies and their suppliers to disclose the chain of custody usage of Conflict Minerals on company web sites and in filings with the Securities Exchange Commission (SEC). Further, SigmaTron is adopting reporting processes and obtaining chain of custody declarations from all SigmaTron-sourced and managed suppliers to ensure transparency in its supply chain. View SigmaTron’s Full Conflict Minerals Policy » View SigmaTron International, Inc. Conflict Minerals Report for the Year Ended December 31, 2019 (Exhibit 1.01) » California Transparency in Supply Chains Act Disclosure SigmaTron assembles products designed by its customers. SigmaTron acquires the necessary materials for such products from its customers’ approved supplier lists. Accordingly, because SigmaTron is required to purchase specific parts from specific suppliers by its customers, SigmaTron does not independently (i) engage in verification of its product supply chains to evaluate and address risks of human trafficking and slavery; (ii) conduct audits of its suppliers to evaluate supplier compliance with company standards for trafficking and slavery in supply chains; (iii) require its direct suppliers to certify that materials incorporated into its products comply with laws regarding slavery and human trafficking of the countries in which it does business; (iv) maintain internal accountability standards and procedures for its employees or contractors failing to meet company standards regarding slavery and trafficking; or (iv) provide training to its employees and management, who have direct responsibility for supply chain management, on human trafficking and slavery. SigmaTron applauds all efforts by its customers and its suppliers to combat slavery and human trafficking and promote human rights. DOCUMENT LINKS SigmaTron International’s Conflict Minerals Policy Conflict Minerals Report Conflict Minerals Information If there are any questions regarding Conflict Minerals, product compliance, or corporate social responsibility issues, please use the form below. SigmaTron: Compliance Form © 2021 SigmaTron International, Inc. All rights reserved. ABOUT CUSTOMER CENTER SUPPLIER CENTER QUALITY INVESTORS CONTACT