UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☑ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from __________to__________ Commission File Number Exact Name of Registrant as Specified in its Charter, Principal Office Address and Telephone Number State of Incorporation or Organization I.R.S. Employer Identification No. 001-38646 Dow Inc. Delaware 30-1128146 2211 H.H. Dow Way , Midland , MI 48674 ( 989 ) 636-1000 001-03433 The Dow Chemical Company Delaware 38-1285128 2211 H.H. Dow Way , Midland , MI 48674 ( 989 ) 636-1000 Securities registered pursuant to Section 12(b) of the Act: Registrant Title of each class Trading Symbol(s) Name of each exchange on which registered Dow Inc. Common Stock, par value $0.01 per share DOW New York Stock Exchange The Dow Chemical Company 0.500% Notes due March 15, 2027 DOW/27 New York Stock Exchange The Dow Chemical Company 1.125% Notes due March 15, 2032 DOW/32 New York Stock Exchange The Dow Chemical Company 1.875% Notes due March 15, 2040 DOW/40 New York Stock Exchange The Dow Chemical Company 4.625% Notes due October 1, 2044 DOW/44 New York Stock Exchange Securities registered pursuant to Section 12(g) of the Act: None Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Dow Inc. ☑ Yes ☐ No The Dow Chemical Company ☑ Yes ☐ No Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Dow Inc. ☐ Yes ☑ No The Dow Chemical Company ☐ Yes ☑ No Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Dow Inc. ☑ Yes ☐ No The Dow Chemical Company ☑ Yes ☐ No