REPORTING & DISCLOSURE TRACKING OUR PROGRESS DOW | REPORTING & DISCLOSURE | 144 Dow Disclosures – GRI Content Index 305-7 Nitrogen oxides (NOx), sulfur oxides (SOx) and other significant air emissions This table shows Dow’s significant air emissions. Dow does not have emissions of PFCs, SF 6 or NF 3 . Area 2021 (Metric Tons) 2020 (Metric Tons) 2019  (Metric Tons) Source of the Emissions Factors Standards, Methodologies, Assumptions and/or Calculation Tools Used NOx 18,068 18,133 1 19,236 1 NOx emissions are largely driven by operation of Dow’s Hydrocarbons, Specialty Plastics and Energy assets. NOx emissions decreased in 2021 vs. 2020 due to maintenance activities and improved sample collection procedures in 2021. SOx 2,048 2,242 2,774 SOx emissions are largely driven by our silicon smelter operations that produce raw materials for our Consumer Solutions business, and our Acrylic Monomer production within our Performance Monomers business. SOx emissions decreased in 2021 vs. 2020 due to improved calculation methodologies and lower production in 2021. Volatile Organic Compounds (VOCs) 8,004 7,495 7,635 VOCs are organic materials that have a high vapor pressure and low boiling point at room temperature. VOC emissions increased in 2021 vs. 2020 due to increased flaring activity due to increased maintenance events and improved calculation methodologies in 2021. Chemicals to Air and Water 15,256 13,910 13,959 Chemical emissions are any release or discharge to the air or water of any pollutant from a facility. The chemical emissions category is largely driven by emissions from our wastewater treatment operations at our large integrated sites. This data excludes NOx, SOx, carbon monoxide, CO 2 , particulates, methane, hydrogen, nitrogen, oxygen, water, aluminum and certain salts. These emissions include the posttreatment chemical emissions from our industrial park tenant companies. 2021 Chemical Emissions to Air and Water increased vs. 2020 due to higher volumes of effluent sent for treatment and unanticipated weather events causing process issues in 2021. Priority Compounds to Air and Water 225 209 294 Priority Compounds are a subset of VOCs that contain carcinogenic, mutagenic and reproductive hazards and/or are persistent and bioaccumulative in the environment. 2021 Priority Compounds to Air and Water increased vs. 2020 due to unanticipated weather events and maintenance activities in 2021. 1 An update to the calculation methodology at one of Dow’s largest silicon sites resulted in an increase in historical NOx emissions from the reported value in the 2020 ESG report. The site had been using estimates and now are using actuals.