Form of 3.625% Notes due 2026 (included as Exhibit B to Exhibit 4.1)

THE DOW CHEMICAL COMPANY, a Delaware corporation (herein called the “Company,” which term includes any successor corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to CEDE & CO., or registered assigns, the principal sum of [•] MILLION DOLLARS (US$[•]) or such other principal sum set forth on the Schedule attached hereto (which shall not exceed $500,000,000) on May 15, 2026, in such coin or currency of the United States of America as at the time of payment shall be legal tender for the payment of public and private debts, and to pay interest and Additional Interest , if any, as defined in and payable pursuant to Section 2 of the Registration Rights Agreement referred to below, thereon semi-annually on each May 15 and November 15 (each an “Interest Payment Date”), commencing November 15, 2019 and at maturity on said principal sum, in such coin or currency of the United States of America as at the time of payment shall be legal tender for the payment of public and private debts, at the rate per annum specified in the title of this Security from the May 15 or November 15, as the case may be, next preceding the date of this Security to which interest and Additional Interest, if any, has been paid, unless the date hereof is a date to which interest and Additional Interest, if any, has been paid, in which case from the date of this Security, or unless no interest has been paid on this Security, in which case from May 20, 2019, until payment of said principal sum has been made or duly provided for. Payments of such principal and interest and Additional Interest, if any, shall be made at the office or agency of the Company in Chicago, Illinois, which, subject to the right of the Company to vary or terminate the appointment of such agency, shall initially be at the principal office of The Bank of New York Mellon Trust Company, N.A., Two North LaSalle Street, Chicago, Illinois 60602; provided, that payment of interest and Additional Interest, if any, may be made at the option of the Company by check mailed to the address of the person entitled thereto as such address shall appear on the Security register; provided, further that so long as CEDE & CO. or another nominee of the Depositary is the registered owner of this Security payments of principal and interest and Additional Interest, if any, will be made in immediately available funds through the Depositary’s Same-Day Funds Settlement System. Notwithstanding the foregoing, if the date hereof is after May 1 or November 1, as the case may be, and before the following May 15 or November 15, this Security shall bear interest and Additional Interest, if any, from such May 15 or November 15; provided, that if the Company shall default in the payment of interest or Additional Interest, if any, due on such May 15 or November 15, then this Security shall bear interest and Additional Interest, if any, from the next preceding May 15 or November 15, to which interest and Additional Interest, if any, has been paid or, if no interest has been paid on this Security, from May 20, 2019. The interest and Additional Interest, if any, payable on any May 15 or November 15 will, subject to certain exceptions provided in the Indenture referred to on the reverse hereof, be paid to the person in whose name this Security is registered at the close of business on the May 1 or November 1 (each a “Record Date”), as the case may be, next preceding such May 15 or November 15, and the interest and Additional Interest, if any, payable at maturity will be payable to the person to whom the principal hereof shall be payable.

Reference is made to the further provisions of this Security set forth on the reverse hereof. Such further provisions shall for all purposes have the same effect as though fully set forth at this place.

This Security shall not be valid or become obligatory for any purpose until the certificate of authentication hereon shall have been signed by the Trustee under the Indenture referred to on the reverse hereof.

IN WITNESS WHEREOF, THE DOW CHEMICAL COMPANY has caused this instrument to be signed by facsimile by its duly authorized representative.

This is one of the Securities of the series designated herein referred to in the within-mentioned Indenture.

Section 1.  General. This Note is one of a duly authorized issue of securities of the Company (herein called the “Securities”), issued and to be issued in one or more series under an Indenture, dated as of May 1, 2008 (the “Base Indenture”), between The Dow Chemical Company (the “Company”) and The Bank of New York Mellon Trust Company, N.A., as trustee (herein called the “Trustee,” which term includes any successor trustee under the Indenture) as supplemented by a second supplemental indenture, dated as of May 20, 2019, among the Company, Dow Inc. (“Dow”) and the Trustee (the “Supplemental Indenture” and, together with the Base Indenture, the “Indenture”), to which Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, Dow, the Trustee and the Holders of the Securities and of the terms upon which the Securities are, and are to be, authenticated and delivered. This Security is one of the Securities of the series designated on the face hereof.

Section 2.  Redemption; Sinking Fund. (a) Except as provided in paragraph (b) below, the Securities are not redeemable prior to maturity.

(b) The Securities are redeemable, at any time in whole or from time to time in part, prior to March 15, 2026, at the option of the Company at a redemption price equal to the greater of:

(i) 100% of the principal amount of the Securities to be redeemed on that redemption date; and

On or after March 15, 2026, the Securities will be redeemable, at any time in whole or from time to time in part, at the Company’s option at 100% of the principal amount of the Securities to be redeemed on that redemption date plus accrued and unpaid interest and Additional Interest, if any, thereon to but excluding such redemption date.

Notwithstanding the foregoing, installments of interest and Additional Interest, if any, on Securities that are due and payable on Interest Payment Dates falling on or prior to a redemption date will be payable on the Interest Payment Date to the registered Holders as of the close of business on the relevant Record Date according to this Security and the Indenture.

“Comparable Treasury Issue” means the United States Treasury security selected by the Quotation Agent as having a maturity comparable to the remaining term (as measured from the date of redemption) of the Securities to be redeemed (assuming for this purpose, that the Securities matured on March 15, 2026) that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Securities.

“Comparable Treasury Price” means, with respect to any redemption date, (i) the average of four Reference Treasury Dealer Quotations for such redemption date, after excluding the highest and lowest such Reference Treasury Dealer Quotations, (ii) if the trustee obtains fewer than four such Reference Treasury Dealer Quotations, the average of all such quotations, or (iii) if only one Reference Treasury Dealer Quotation is received, such quotation.

“Quotation Agent” means any Reference Treasury Dealer appointed by the Company.

“Reference Treasury Dealer” means (i) each of Citigroup Global Markets Inc., HSBC Securities (USA) Inc. and a Primary Treasury Dealer selected by MUFG Securities Americas Inc. (or their respective affiliates that are Primary Treasury Dealers) and their respective successors; provided, however, that if any of the foregoing shall cease to be a primary U.S. Government securities dealer in New York City (a “Primary Treasury Dealer”), the Company shall substitute therefor another Primary Treasury Dealer, and (ii) at least one other Primary Treasury Dealer selected by the Company.

“Reference Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and any redemption date, the average, as determined by the Trustee, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Trustee by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third business day preceding such redemption date.

“Treasury Rate” means, with respect to any redemption date, the rate per annum equal to the semi-annual equivalent yield to maturity of the Comparable Treasury Issue, assuming a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such redemption date.

(c) The Securities will not be subject to any sinking fund.

(d) The Company will mail a notice of any redemption at least 15 days but not more than 60 days before the redemption date to each Holder; provided that such notice of redemption may be mailed more than 60 days prior to a redemption date if the notice is issued in connection with a defeasance of the Securities or a satisfaction and discharge of the Securities. Once notice of redemption is mailed, the Securities called for redemption will become due and payable on the redemption date and at the applicable redemption price, plus accrued and unpaid interest and Additional Interest, if any, to, but excluding, the redemption date.

Section 3.  Repurchase at the Option of Holders Upon Change of Control Repurchase Event.

(a) If a Change of Control Repurchase Event (as defined below) occurs, unless the Company has exercised its right to redeem the Securities as provided in Section 2 above, the Company will make an offer to each Holder of Securities to repurchase all or any part (in integral multiples of $1,000 and no Security of a principal amount of $2,000 or less will be repurchased in part) of that Holder’s Securities at a repurchase price in cash equal to 101% of the aggregate principal amount of Securities repurchased plus accrued and unpaid interest and Additional Interest, if any, on the Securities repurchased, to, but excluding, the date of repurchase.

(b) Within 30 days following any Change of Control Repurchase Event or, at the Company’s option, prior to any Change of Control (as defined below), but after the public announcement of an impending Change of Control, the Company will mail (or electronically deliver) a notice to each Holder, with a copy to the Trustee, describing the transaction or transactions that constitute or may constitute the Change of Control Repurchase Event and offering to repurchase Securities on the payment date specified in the notice, which date will be no earlier than 30 days and no later than 60 days from the date such notice is mailed. The notice shall, if mailed prior to the date of consummation of the Change of Control, state that the offer to repurchase is conditioned on the Change of Control Repurchase Event occurring on or prior to the payment date specified in the notice.

(c) The Company will comply with the requirements of Rule 14e-1 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and any other securities laws and regulations thereunder, to the extent those laws and regulations are applicable in connection with the repurchase of the Securities as a result of a Change of Control Repurchase Event. To the extent that the provisions of any securities laws or regulations conflict with this Section 3, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under this Section 3 by virtue of such conflict.

(d) On the Change of Control Repurchase Event payment date, the Company will, to the extent lawful:

(e) The paying agent will promptly mail to each Holder of Securities properly tendered the repurchase price for the Securities, and the Trustee will promptly authenticate and mail (or cause to be transferred by book-entry) to each Holder a new Security equal in principal amount to any unpurchased portion of any Securities surrendered; provided, that each new Security will be in a minimum principal amount of $2,000 or an integral multiple of $1,000 above that amount.

(f) The Company will not be required to make an offer to repurchase the Securities upon a Change of Control Repurchase Event if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements for an offer made by the Company and such third party purchases all Securities properly tendered and not withdrawn under its offer.

(g) The following terms for purposes of this Section 3 shall have the respective meanings specified below:

“Below Investment Grade Rating Event” means the rating on the Securities is lowered by each of the Rating Agencies and the Securities are rated below Investment Grade by each of the Rating Agencies on any date from the date of the public notice of an arrangement that could result in a Change of Control until the end of the 60-day period following public notice of the occurrence of a Change of Control (which period shall be extended so long as the rating of the Securities is under publicly announced consideration for possible downgrade by any of the Rating Agencies); provided that a Below Investment Grade Rating Event otherwise arising by virtue of a particular reduction in rating shall not be deemed to have occurred in respect of a particular Change of Control (and thus shall not be deemed a Below Investment Grade Rating Event for purposes of the definition of Change of Control Repurchase Event hereunder) if any of the Rating Agencies making the reduction in rating to which this definition would otherwise apply does not announce or publicly confirm or inform the Trustee in writing at its request that the reduction was the result, in whole or in part, of any event or circumstance comprised of or arising as a result of, or in respect of, the applicable Change of Control (whether or not the applicable Change of Control shall have occurred at the time of the Below Investment Grade Rating Event).

“Business Separations” has the meaning provided in the Company’s offering memorandum dated May 16, 2019 relating to the offering of the Securities.

“Change of Control” means the occurrence of any of the following:

(1) the direct or indirect sale, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or substantially all of the properties or assets of the Company and those of its subsidiaries taken as a whole to any “person” or “group” (as those terms are used for purposes of Section 13(d)(3) of the Exchange Act), other than the Company, Dow or one or more of wholly-owned subsidiaries of Dow;

(2) the consummation of any transaction or series of related transactions (including, without limitation, any merger or consolidation) the result of which is that any “person” or “group” (as those terms are used for purposes of Section 13(d)(3) of the Exchange Act), other than Dow or one or more wholly-owned subsidiaries of Dow, becomes the beneficial owner, directly or indirectly, of more than 50% of the then outstanding shares of the Voting Stock of Dow or the Company, measured by voting power rather than number of shares;

(3) the Company or Dow consolidates with, or merges with or into, any Person, or any Person consolidates with, or merges with or into, the Company or Dow, in any such event pursuant to a transaction in which any of the outstanding Voting Stock of the Company, Dow or such other Person is converted into or exchanged for cash, securities or other property, other than any such transaction where the shares of the Voting Stock of the Company or Dow outstanding immediately prior to such transaction constitute, or are converted into or exchanged for, a majority of the Voting Stock of the surviving Person or any direct or indirect parent company of the surviving Person immediately after giving effect to such transaction;

(4) the first day on which a majority of the members of the board of directors of the Company or the board of directors of Dow are not Continuing Directors; or

(5) the adoption of a plan relating to the liquidation or dissolution of the Company or Dow.

Notwithstanding the foregoing, none of the transactions relating to the Business Separations shall be considered a Change of Control.

“Continuing Directors” means, as of any date of determination, (a) with respect to any member of the board of directors of Dow, any such member who (1) was a member of such board of directors on the date of the issuance of the Securities; or (2) was nominated for election or elected to such board of directors with the approval of a majority of the Continuing Directors who were members of such board of directors at the time of such nomination or election (either by a specific vote or by approval of our proxy statement in which such member was named as a nominee for election as a director) and (b) with respect to any member of the board of directors of the Company, any such member who (1) was a member of such board of directors on the date of the issuance of the Securities; or (2) was appointed, nominated for election or elected to such board of directors by Dow.

“Fitch” means Fitch Ratings, Inc.

“Investment Grade” means a rating of BBB- or better by Fitch (or its equivalent under any successor rating categories of Fitch), Baa3 or better by Moody’s (or its equivalent under any successor rating categories of Moody’s) and a rating of BBB- or better by S&P (or its equivalent under any successor rating categories of S&P) or the equivalent investment grade credit rating from any additional Rating Agency or Rating Agencies selected by the Company.

“Moody’s” means Moody’s Investors Services Inc.

“Rating Agency” means (1) each of Fitch, Moody’s and S&P; and (2) if any of Fitch, Moody’s or S&P ceases to rate the Securities or fails to make a rating of the Securities publicly available for reasons outside of the Company’s control, a “nationally recognized statistical rating organization” registered pursuant to Section 15E of the Exchange Act, selected by the Company as a replacement agency for Fitch, Moody’s or S&P, as the case may be.

“S&P” means S&P Global Ratings, a division of S&P Global, Inc., and its successors.

“Voting Stock” means, with respect to any person, capital stock of any class or kind the holders of which are ordinarily, in the absence of contingencies, entitled to vote for the election of directors (or persons performing similar functions) of such person, even if the right so to vote has been suspended by the happening of such a contingency.

Section 4.  Events of Default. If an Event of Default with respect to Securities of this series shall occur and be continuing, the principal of the Securities of this series may be declared due and payable in the manner and with the effect provided in the Indenture.

Section 5.  Modifications and Waivers; Obligation of the Company Absolute. The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the Securities of each series to be affected under the Indenture at any time by the Company and the Trustee with the consent of the Holders of at least a majority in principal amount of the Securities at the time Outstanding of each series to be affected. The Indenture also contains provisions permitting the Holders of specified percentages in principal amount of the Securities of each series at the time Outstanding, on behalf of the Holders of all Securities of such series, to waive compliance by the Company with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Security shall be conclusive and binding upon such Holder and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Security.

No reference herein to the Indenture and no provision of this Security or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and interest and Additional Interest, if any, on this Security at the times, places and rate, and in the coin or currency, herein prescribed.

Section 6.  Authorized Denominations. The Securities are issuable in registered form, without coupons, in denominations of $2,000 and any integral multiple of $1,000 in excess thereof. As provided in the Indenture, and subject to certain limitations therein set forth and to the limitations described below, if applicable, Securities of this series are exchangeable for a like aggregate principal amount of Securities of this series and of like tenor of a different authorized denomination, as requested by the Holder surrendering the same.

Section 7.  Registration of Transfer. As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Security is registrable in the Security register upon surrender of this Security for registration of transfer at the office or agency of the Company maintained for that purpose in the City of Chicago, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the securities registrar (which shall initially be the Trustee, Two North LaSalle Street, Chicago, Illinois 60602 (Attention: Corporate Trust Department) or at such other address as it may designate as its principal corporate trust office in the City of Chicago), duly executed by the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Securities of this series and of like tenor, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees.

No service charge shall be made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith.

Section 8.  Owners. Prior to due presentment of this Security for registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Security is registered as the owner hereof for all purposes, whether or not this Security is overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary.

Section 9.  No Recourse Against Certain Persons. No recourse for the payment of the principal or interest or Additional Interest, if any, on this Security, or for any claim based hereon or otherwise in respect hereof, and no recourse under or upon any obligation, covenant or agreement of the Company in the Indenture or any Supplemental Indenture thereto or in any Security, or because of the creation of any indebtedness represented thereby, shall be had against any incorporator, stockholder, officer or director, as such, past, present or future, of the Company or of any successor corporation of either of them, either directly or through the Company or any successor corporation of either of them, whether by virtue of any constitution, statute or rule or law or by the enforcement of any assessment or penalty or otherwise, all such liability being by the acceptance hereof and as a condition of and as part of the consideration for the issue hereof, expressly waived and released.

Section 10.  Defeasance. The Indenture with respect to any series will be discharged and cancelled except for certain Sections thereof, subject to the terms of the Indenture, upon payment of all of the Securities of such series or upon the irrevocable deposit with the Trustee of cash or U.S. Government Obligations (or a combination thereof) sufficient for such payment in accordance with Article Ten of the Indenture.

Section 11.  Registration Rights Agreement. Holders of the Securities issued on the date hereof will have all the rights set forth in the Registration Rights Agreement, dated as of May 20, 2019, among the Company and the other parties named in Schedule I thereto (the “Registration Rights Agreement”). The Company will furnish to any holder of Securities upon request and without charge a copy of the Registration Rights Agreement.

Section 12.  Governing Law; Jurisdiction. The Indenture and the Securities shall be governed by and construed in accordance with the laws of the State of New York.

Section 13.  Defined Terms. All terms used in this Security which are defined in the Indenture shall have the meanings assigned to them in the Indenture.

This Certificate relates to $_____________ principal amount of Securities held in (check applicable space) ___ book-entry form by _________________________ (the “Transferor”).

The Transferor (check one box below):

In connection with any transfer of any of the Securities evidenced by this certificate occurring prior to the expiration of the period referred to in Rule 144(d) under the Securities Act of 1933, the undersigned confirms that such Securities are being transferred in accordance with its terms:

CHECK ONE BOX BELOW

Prior to the expiration of the period referred to in Rule 144(d), unless one of the boxes is checked, the Trustee will refuse to register any of the Securities evidenced by this certificate in the name of any Person other than the registered holder thereof; provided, however, that if box (2), (3), (4) or (6) is checked, the Trustee may require, prior to registering any such transfer of the Securities, such legal opinions, certifications and other information satisfactory to the Company and the Trustee to confirm that such transfer is being made pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act of 1933.

The following exchanges of a part of this Security have been made:

The following abbreviations, when used in the inscription on the face of this instrument, shall be construed as though they were written out in full according to applicable laws or regulations: