HEALTH & SAFETY INTEGRATING SAFETY INTO ALL WE DO DOW | 2021 ESG REPORT | 38 Total Worker Health ® – An Overview Dow set a goal in 2015 to achieve 100% on our Total Worker Health ® (TWH ® ) index by 2025, an equally weighted composite score based on three elements: Healthy Workplace , Healthy People and Healthy Culture . As of 2021, we achieved an index score of 74.5%, which has put us on a path to achieve this target one year earlier than anticipated. Below are examples of how we are advancing a Healthy Workplace, Healthy People and Healthy Culture. HEALTHY WORKPLACE: HEALTH RISK REDUCTION EFFORTS We routinely evaluate our workplaces in search of high-priority health risks (P1s), which include ergonomic stressors and exposure to chemicals and high noise levels. We made great progress in our efforts to reduce these risks in 2021. For example: • Dow Performance Materials and Coatings improved its tote cleaning process and is leveraging a new cleaning system across five sites. The new system reduced ergonomic stress, noise exposure and heat stress for workers. • Our polyols plant in San Lorenzo, Argentina, implemented a state-of-the- art pipeline inspection gauge (PIG), which eliminated worker exposure risks to propylene oxide. This technology was leveraged from a sister plant in Cartagena, Colombia. • Our polyols plant in Guarujá, Brazil, collaborated with a third-party logistics company to improve butadiene sampling systems operated by Dow workers. This effort reduced potential exposure to butadiene and resulted in two P1 eliminations. • Dow Consumer Solutions implemented a significant noise control project at a site in Kendallville, Indiana. This effort has eliminated six P1 health risks for more than 70 employees so far. Overall, our P1 elimination work has reduced occupational health risks for nearly 600 Dow employees globally. HEALTHY PEOPLE: RECLAIM YOUR HEALTH CAMPAIGN TAKES A HOLISTIC APPROACH Our OH group launched the Reclaim Your Health campaign in 2021 to remind employees about the importance of self-care and to share resources for employees to maintain their health. To gauge the mental health of employees, OH also launched screening questions as part of their engagement with our medical clinic staff. As a result of the screening implementation, Dow’s medical staff was able to identify employees in need of support and resources. Additionally, all 10 of our ERGs explored elements of mental and physical well- being through webcasts. These virtual engagements especially highlighted psychological safety, which is fundamental to creating joint ownership for advancing the employee experience, addressing stressors, and maintaining or improving mental health. HEALTHY CULTURE: TRACKING OUR PROGRESS Sites annually self-assess their efforts to maintain or improve the health of employees through a healthy culture survey. In 2021, six additional Dow locations received a platinum rating, bringing the total number of sites recognized to 96. Health & Safety Spotlight American Heart Association (AHA) Recognizes Dow’s Healthy Workplace and Culture We were presented gold-level recognition by the AHA in 2021 for the significant steps we took to build a culture of health and well-being for our global workforce. This honor is one of the highlighted accomplishments aligned with our TWH ® efforts, part of the World-Leading Operations 2025 Sustainability Goal.