Document:

EX-4.3

 Exhibit 4.3 

E. I. du Pont de Nemours and Company 

Management Deferred Compensation Plan 

(Effective January 1, 2008) 

(As Last Amended Effective August 31, 2017) 

Article 1. Purpose & Merger Involving The Dow Chemical Company. 

Section 1.01 Purpose. E. I. du Pont de Nemours and Company (“Company”) desires to provide certain of its employees with
an opportunity to accumulate additional retirement savings through voluntary compensation deferral contributions to a plan intended to constitute a non-qualified deferred compensation plan which, in accordance with Sections 201(2), 301(a)(3) and
401(a)(1) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), is unfunded and maintained by the Company primarily for the purpose of providing deferred compensation for a select group of management or highly
compensated employees. The Company intends that a participant’s compensation deferrals, and the earnings thereon, will not be subject to federal income tax until such amounts are paid or made available to the participant. 

Section 1.02 Merger Involving The Dow Chemical Company. Effective as of the “Closing Date” (as that term is defined in
that certain Agreement and Plan of Merger, dated as of December 11, 2015 (as it may be amended from time to time, the “Merger Agreement”), by and among DowDuPont Inc. (f/k/a Diamond-Orion HoldCo, Inc. (“DWDP”)), The Dow
Chemical Company (“Dow”), Diamond Merger Sub, Inc., E. I. du Pont de Nemours and Company (“DuPont”) and Orion Merger Sub, Inc.), DuPont became a subsidiary of DWDP (the “Merger”), and, to the extent applicable under the
terms of this Plan, the Merger constituted a “Change in Control” for purposes of this Plan. Accordingly, as of the Closing Date, to the extent applicable in respect of this Plan: (i) any amounts under the Plan that otherwise would
have been denominated in the common stock of DuPont shall be deemed denominated in shares of common stock of DWDP, subject to and in accordance with the applicable terms of the Merger Agreement; (ii) the conditions to participation in the Plan
shall not be changed from those in effect immediately before the Closing Date (such that, among other things, only those service providers of DuPont or its subsidiaries (and not any service providers of Dow or its subsidiaries in their capacity as
such) shall be eligible to participate in the Plan); (iii) the terms and conditions of the administration of the Plan shall not be changed from those in effect immediately before the Closing Date (or as previously may have been provided by
DuPont to be effective as of or following the Closing Date) except that, in any event, in respect of participation by directors or executive officers of DWDP, the Plan shall be administered by the Compensation Committee of the Board of Directors of
DWDP to the extent required to comply with the requirements of applicable law or any exchange on which the capital stock of DWDP may be listed; and (iv) the Plan otherwise shall be administered and interpreted to (A) conform to the terms
and conditions of the Merger Agreement and further the intended effects of the Merger and (B) not result in the imposition of any tax under Section 409A of the Internal Revenue Code of 1986, as amended. 

  
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 Article 2. Definitions  

Section 2.01 “Account” means each account established on the books of account of the Employer to reflect
the balance of Plan benefits attributable to a Participant. An Account shall be credited or debited, as applicable, with Deferral Contributions, Credited Investment Return and Dividend Equivalent Units, and any payments made by the Employer to the
Participant or the Participant’s Beneficiary pursuant to this Plan. A Participant’s Account shall be divided into Directed Investment Subaccounts, with respect to which he/she shall be permitted to make Deemed Investment Elections, and
Stock Unit Subaccounts, with respect to which he/she shall not be permitted to make Deemed Investment Elections. 

Section 2.02 “Active Participant” means a Participant on whose behalf a current Deferral Election is in
effect. 
 Section 2.03 “Administrator” means the Company. 

Section 2.04 “Affiliate” means any corporation, organization or entity which is under common control
with the Company or which is otherwise required to be aggregated with the Company pursuant to paragraphs (b), (c), (m), or (o) of Section 414 of the Code. 

Section 2.05 “Base Salary” means the basic pay from the Employer (excluding LTI Awards and STI Awards,
distributions from nonqualified deferred compensation plans, commissions, overtime, severance, fringe benefits, stock options and other equity awards, relocation expenses, incentive payments, non-monetary awards, automobile and other allowances
(whether or not such allowances are included in the Employee’s gross income) and other non-regular forms of compensation paid to a Participant for employment services rendered). Base Salary shall be calculated before reduction for compensation
voluntarily deferred or contributed by the Participant pursuant to all qualified or nonqualified plans of any Employer and shall be calculated to include amounts not otherwise included in the Participant’s gross income under Code Sections 125,
132, 402(e)(3), 402(h), or 403(b) pursuant to plans or arrangements established by any Employer; provided, however, that all such amounts will be included in Base Salary only to the extent that had there been no such plan, the amount would have been
payable in cash to the Employee. Notwithstanding anything in this Plan to the contrary, Base Salary shall not include any amount paid pursuant to a long-term disability plan or pursuant to a long-term disability insurance policy. 

  
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 Section 2.06 “Base Salary Deferral Eligible Employee” means
any U.S.-based employee of the Employer who is designated from time to time by the Employer as eligible to defer the payment of Base Salary in accordance with Article 4 hereof. 

Section 2.07 “Beneficiary” means the person or persons designated as such pursuant to Article 7 hereof.

 Section 2.08 “Change of Control” means an objectively determined event that occurs with respect to
the Company or the Employer for whom the Participant renders services and which constitutes both a Change in Control for purposes of the Equity and Incentive Plan and change in the ownership or effective control of the Company or Employer, as
applicable, or in the ownership of a substantial portion of the Company’s or Employer’s, as applicable, assets for purposes of Code Section 409A. 

Section 2.09 “Changed Personal Circumstances” means an event or series of events beyond the control of
the Participant which were unforeseeable at the time a Deferral Election was made which will result in a severe financial hardship for the Participant absent a cancellation of the Deferral Election at issue. A financial hardship shall be deemed
severe if the amount involved equals or exceeds the annual Deferral otherwise resulting from the Deferral Election at issue. Whether a Participant has experienced Changed Personal Circumstances shall be determined on a facts-and-circumstances basis
in the sole discretion of the Administrator. 
 Section 2.10 “Code” means the Internal Revenue Code of
1986, as amended, and the regulations and rulings issued thereunder. 
 Section 2.11 “Common Stock
Unit” means a notional unit representing one share of common stock of the Company. 
 Section 2.12
“Credited Investment Return” means the hypothetical gain or loss credited to a Participant’s Directed Investment Subaccounts pursuant to Article 5 hereof. 

Section 2.13 “Deemed Investment Election” means the selection by a Participant, pursuant to Article 5
hereof, of Investment Options in which his/her Directed Investment Subaccounts shall be deemed invested. 

  
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 Section 2.14 “Deferral Contributions” means the elective
contributions made to the Plan by a Participant pursuant to Article 4 hereof. 
 Section 2.15 “Deferral
Election” means an election, pursuant to Article 4 hereof, to defer receipt of Base Salary or STI Awards, or the settlement of LTI Awards. Deferral Elections shall be made in accordance with the procedures established by the Administrator
for that purpose. A Deferral Election may be cancelled due to an “unforeseeable emergency” as defined in Treasury Regulation Section 1.409A-3(i)(3) or a hardship distribution pursuant to Section 1.401(k)-1(d)(3). The Deferral Election
must be cancelled, not merely postponed or otherwise delayed. Any later Deferral Election will be subject to the provisions of Article 4 of this Plan governing Deferral Elections. 

Section 2.16 “Directed Investment Subaccount” means that portion of a Participant’s Account to
which a Participant’s Deferral Contributions of Base Salary and STI Awards, and Credited Investment Return and Dividend Equivalent Units attributable thereto, will be allocated and with respect to which he/she may make Deemed Investment
Elections in accordance with Article 5 hereof. A Participant may maintain no more than five (5) Directed Investment Subaccounts under this Plan. 

Section 2.17 “Dividend Equivalent Units” means additional Common Stock Units credited to a
Participant’s Account pursuant to Section 5.05. 
 Section 2.18 “Dividend Payment Date”
means each date on which the Company pays a dividend on its common stock. 
 Section 2.19 “Effective
Date” means January 1, 2008. Notwithstanding the foregoing to the contrary, provisions of this Plan related to the deferral of Base Salary and LTI Awards shall not be effective until January 1, 2009. 

Section 2.20 “Eligible Employee” means any Base Salary Deferral Eligible Employee, STI Deferral Eligible
Employee or LTI Deferral Eligible Employee. 
 Section 2.21 “Employer” means the Company and any
Affiliate which, with the consent of the Company, adopts this Plan. 
 Section 2.22 “Equity and Incentive
Plan” means the E.I. du Pont de Nemours and Company Equity and Incentive Plan. 

  
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 Section 2.23 “Form of Payment” means either (i) a lump
sum or (ii) annual installments (for up to fifteen (15) years). Annual installments are available only in connection with a Separation from Service or Change of Control. In the event of a Participant’s death, his/her remaining Account
balance will be distributable in a single lump sum. 
 Section 2.24 “Identification Date” means each
December 31. 
 Section 2.25 “Investment Options” means one or more alternatives designated from
time to time, pursuant to Section 5.01 hereof, for purposes of crediting earnings or losses to Directed Investment Subaccounts. 

Section 2.26 “LTI Award” means an award of RSUs or PSUs. 

Section 2.27 “LTI Deferral Eligible Employee” means any U.S.-based employee of the Employer who is
designated from time to time by the Company as eligible to defer the settlement of an LTI Award in accordance with Article 4 hereof. 

Section 2.28 “Participant” means any Eligible Employee who has elected to participate in the Plan by
completing the appropriate forms (including electronic forms) prescribed by the Administrator for that purpose. 

Section 2.29 “Payment Event” means any of the following: 

(a) Separation from Service 

(b) The earlier of (i) Separation from Service or (ii) a specified date 

(c) Change of Control 

Notwithstanding the foregoing, (i) in the event of a Participant’s death, his/her remaining Account balance will
automatically be distributed to his/her Beneficiary in a single lump sum within ninety days (90) thereafter and (ii) a Participant may request that all or a portion of his/her Account be distributed on account of an “unforeseeable
emergency” as defined in Treasury Regulation Section 1.409A-3(i)(3) and subject to the restrictions on such distributions set forth therein. 

Section 2.30 “Plan” means the E.I du Pont de Nemours and Company Management Deferred Compensation Plan.

  
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 Section 2.31 “Plan Year” means the twelve (12) month
period beginning January 1 and ending December 31. 
 Section 2.32 “PSU” means a
performance-based restricted stock unit granted under the Equity and Incentive Plan. 
 Section 2.33 “Qualified
Leave” means military leave, sick leave, or other bona fide leave of absence if the period of such leave does not exceed six months, or if longer, so long as the individual retains a right to reemployment with the service recipient under an
applicable statute or by contract. A leave of absence constitutes a bona fide leave of absence only if there is a reasonable expectation that the employee will return to perform services for the employer. If the period of leave exceeds six months
and the individual does not retain a right to reemployment under an applicable statute or by contract, the employment relationship is deemed to terminate on the first date immediately following such six-month period. 

Section 2.34 “RSU” means a time-vested restricted stock unit granted under the Equity and Incentive
Plan. 
 Section 2.35 “Section 16 Person” means any employee who is subject to the reporting
requirements of Section 16(a) or the liability provisions of Section 16(b) of the Securities and Exchange Act of 1934, as amended. 

Section 2.36 “Separation from Service” means a “separation from service” as defined in
Treasury Regulation Section 1.409A-1(h). 
 Section 2.37 “Similar Plan” means a plan required to
be aggregated with this Plan under Treasury Regulation Section 1.409A-1(c)(2)(i)(A). 
 Section 2.38
“Specified Employee” means an officer of the Employer at any time during the 12-month period ending on an Identification Date. If a Participant is a Specified Employee as of an Identification Date, such Participant is treated as a
Specified Employee for the 12-month period beginning on the first day of the first month following the Identification Date. 

Section 2.39 “STI Award” means a cash-based award under the Equity and Incentive Plan or Pioneer Hi-Bred
International, Inc. Annual Reward Plan. 

  
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 Section 2.40 “STI Deferral Eligible Employee” means any
U.S.-based employee of the Employer who is designated from time to time by the Employer as eligible to defer the payment of an STI Award in accordance with Article 4 hereof. 

Section 2.41 “Stock Unit Subaccount” means that portion of a Participant’s Account to which a
Participant’s Deferral Contributions of LTI Awards, and Dividend Equivalent Units attributable thereto, will be allocated and with respect to which he/she may not make Deemed Investment Elections in accordance with Article 5 hereof. A
Participant may maintain no more than five (5) Stock Unit Subaccounts under this Plan. 
 Section 2.42
“Triggering Event” means, with respect to a Distribution Subaccount, the Payment Event elected by a Participant pursuant to Section 4.03. 

Article 3. Eligibility.  

Section 3.01 Procedure For and Effect of Admission. Each Eligible Employee who desires to participate in this Plan
shall complete such forms (including electronic forms) and provide such data as is reasonably required by the Administrator. By becoming a Participant, an Eligible Employee shall be deemed to have consented to the provisions of this Plan and all
amendments hereto. 
 Section 3.02 Cessation of Participation. A Participant shall cease to be an Active
Participant on the earlier of: 
 (a) The date on which the Plan terminates; 

(b) The date on which he/she ceases to be an Eligible Employee; or 

(c) The date on which he/she is permitted by the Administrator to terminate Deferral Contributions to the Plan. 

A former Active Participant will be considered a Participant for all purposes, except with respect to the right to make
contributions, as long as he/she retains an Account. 

  
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 Article 4. Deferral Elections  

Section 4.01 Annual Deferral Elections 

(a) Deferral Contributions of Base Salary. A Base Salary Deferral Eligible Employee may elect to defer a percentage, not
to exceed 60%, of his/her Base Salary payable with respect to services performed during the Plan Year; provided, however, that such Deferral Election shall be made (i) during the open enrollment period established by the Administrator for that
purpose and (ii) on or before the last day of the calendar year preceding the first day of the Plan Year to which such Deferral Election relates. A Base Salary Deferral Eligible Employee may elect to cancel a Deferral Election made pursuant to
this section on account of Changed Personal Circumstances provided such election is made on or before the last day of the calendar year preceding the first day of the Plan Year to which such Deferral Election relates. Any election made pursuant to
this section shall remain in effect unless and until changed by the Participant; provided, however, that with respect to Base Salary earned in any future taxable year, such election becomes irrevocable on December 31 of the preceding calendar
year. 
 (b) Deferral Contributions of STI Awards. An STI Deferral Eligible Employee may elect to defer a percentage,
not to exceed 60%, of an STI Award; provided, however, that (i) such STI Deferral Eligible Employee performs services continuously from the later of the beginning of the performance period or the date the performance criteria are established
through the date the election to defer is made and (ii) such Deferral Election is made (A) during the open enrollment period established by the Administrator for that purpose and (B) on or before the date that is six months before the
end of the performance period over which the STI Award shall be determined. An STI Deferral Eligible Employee may elect to cancel a Deferral Election made pursuant to this section on account of Changed Personal Circumstances provided such election
is made on or before the date that is six months before the end of the performance period over which the STI Award shall be determined. Any election made pursuant to this section shall remain in effect unless and until changed by the Participant;
provided, however, that with respect to any STI Award earned during any future taxable year, such election becomes irrevocable on the date that is six months before the end of the performance period over which the STI Award shall be determined. 

(c) Deferral Contributions of LTI Awards.  

(i) RSUs. An LTI Deferral Eligible Employee may elect to defer the settlement of RSUs granted during a Plan Year;
provided, however, that such Deferral Election shall be made (i) during the open enrollment period established by the Administrator for that purpose and (ii) on or before the last day of the calendar year preceding the first day of the
Plan Year to which 

  
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such Deferral Election relates. An LTI Deferral Eligible Employee may elect to cancel a Deferral Election made pursuant to this section on account of Changed Personal Circumstances provided such
election is made on or before the last day of the calendar year preceding the first day of the Plan Year to which such Deferral Election relates. Notwithstanding the foregoing, an LTI Deferral Eligible Employee may elect to defer the settlement of
RSUs that are subject to a vesting period of at least 12 months, provided such election is made on or before the thirtieth (30th) day after the LTI Deferral Eligible Employee is granted the RSUs and further provided that the election is made at
least 12 months in advance of the earliest date on which the vesting period could expire. In the event that a timely election to defer the settlement of RSUs may not be made pursuant to either of the foregoing sentences of this paragraph, an LTI
Deferral Eligible Employee may elect to defer the settlement of RSUs provided such election is made at least 12 months in advance of the date on which the restrictions on such RSUs lapse and further provided that such RSUs may not be settled until
the fifth anniversary of the date that the restrictions on the RSUs lapsed. Notwithstanding the foregoing to the contrary, an LTI Deferral Eligible Employee shall not be permitted to elect to defer the settlement of RSUs unless such election
complies with Code Section 409A. If a Participant elects to defer settlement of RSUs, any restrictions on transferability and/or events of forfeiture applicable to such RSUs under the Equity and Incentive Plan or the Award Terms (as defined
under the Equity and Incentive Plan) shall continue in full force and effect. Upon expiration of all restrictions on transferability, the appropriate number of Common Stock Units of the Company, including Dividend Equivalent Units attributable
thereto, shall be credited to the Participant’s applicable Stock Unit Subaccount. Any election made pursuant to this Section shall remain in effect unless and until changed by the Participant; provided, however, that with respect to RSUs
granted in any future taxable year, such election becomes irrevocable on the last day of the calendar year preceding the Plan Year during which the RSUs are granted or, if later, on the thirtieth (30th) day after the LTI Deferral Eligible
Employee is granted the RSUs and at least 12 months in advance of the earliest date on which the vesting period could expire. 

(ii) PSUs. An LTI Deferral Eligible Employee may elect to defer the settlement of PSUs provided, however, that
(i) such LTI Deferral Eligible Employee performs services continuously from the later of the beginning of the performance period or the date the performance criteria are established through the date the election to defer is made and
(ii) such Deferral Election is made 

  
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(A) during the open enrollment period established by the Administrator for that purpose and (B) on or before the date that is six months before the end of the performance period over which
the PSU settlement shall be determined. An LTI Deferral Eligible Employee may elect to cancel a Deferral Election made pursuant to this section on account of Changed Personal Circumstances provided such election is made on or before the date that is
six months before the end of the performance period over which the PSU settlement shall be determined. Any election made pursuant to this Section shall remain in effect unless and until changed by the Participant; provided, however, that with
respect to any PSUs earned during any future taxable year, such election becomes irrevocable on the date that is six months before the end of the performance period over which the PSU settlement shall be determined. 

Section 4.02 Initial Distribution Elections. 

(a) Directed Investment Subaccounts. A Participant may elect to establish up to five (5) Directed Investment
Subaccounts under his/her Account. At the time a Participant establishes a Directed Investment Subaccount, he/she must also elect a Payment Event and Form of Payment with respect to such subaccount. When making a Deferral Election with respect to
Base Salary or STI Awards, a Participant shall designate: (i) to which Directed Investment Subaccounts amounts deferred pursuant to that election, and Credited Investment Return and Dividend Equivalent Units attributable thereto, shall be
allocated; and (ii) how those amounts shall be allocated among the designated Directed Investment Subaccounts. If a Participant fails to establish a Directed Investment Subaccount or fails to designate the Directed Investment Subaccount(s) to
which his/her Deferral Contributions of Base Salary or STI Awards should be allocated, such Deferral Contributions shall be allocated to the default Directed Investment Subaccount established by the Administrator. The Payment Event with respect to
such default Directed Investment Subaccount shall be Separation of Service and the Form of Payment shall be a lump sum. 

(b) Stock Unit Subaccount. A Participant may elect to establish up to five (5) Stock Unit Subaccounts under his/her
Account. At the time a Participant establishes a Stock Unit Subaccount, he/she must also elect a Payment Event and Form of Payment with respect to such subaccount. When making a Deferral Election with respect to LTI Awards, a Participant shall
designate: (i) to which Stock Unit Subaccounts amounts deferred pursuant to that election, and Dividend Equivalent Units attributable thereto, shall be allocated; and (ii) how those amounts shall be allocated among the designated Stock
Unit Subaccounts. If a Participant fails to establish a Stock Unit Subaccount 

  
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or fails to designate the Stock Unit Subaccount(s) to which his/her Deferral Contributions of LTI Awards should be allocated, such Deferral Contributions shall be allocated to the default Stock
Unit Subaccount established by the Administrator. The Payment Event with respect to such default Stock Unit Subaccount shall be Separation of Service and the Form of Payment shall be a lump sum. 

Section 4.03 Subsequent Distribution Elections. A Participant may subsequently elect to change the Payment Event
or Form of Payment elected with respect to one or more Directed Investment Subaccounts or Stock Unit Subaccounts in accordance with procedures established by the Administrator for such purpose; provided, however, that: (i) such subsequent
election may not take effect until at least 12 months after the date on which it is made; (ii) the payment with respect to which such election is made must be deferred for a period of not less than five (5) years from the date such payment
would otherwise have been made; and (iii) any subsequent election related to a payment at a specified time or in accordance with a fixed schedule may not be made less than 12 months prior to the date of the first scheduled payment. 

Article 5. Investment of Accounts  

Section 5.01 Investment Options. The Administrator shall designate from time to time one or more Investment Options
in which a Participant’s Directed Investment Subaccounts may be deemed invested. The Administrator shall have the sole discretion to determine the number of Investment Options to be designated hereunder and the nature of the Investment Options
and may change or eliminate any of the Investment Options from time to time. In the event of such change or elimination, the Administrator shall give each Participant timely notice and opportunity to make a new election. No such change or
elimination of any Investment Options shall be considered to be an amendment to the Plan pursuant to Section 9.01. 

Section 5.02 Making Deemed Investment Elections. A Participant shall select one or more Investment Options in
which his/her Directed Investment Subaccounts shall be deemed invested. Separate Deemed Investment Elections may be made with respect to each Directed Investment Subaccount. Any such election shall be made by filing with the Administrator the
appropriate form prescribed for that purpose. The Administrator shall establish procedures relating to Deemed Investment Elections. Deemed Investment Elections shall remain in affect until changed by a Participant pursuant to Section 5.03. 

Section 5.03 Changes to Deemed Investment Elections. A Participant may request a change to his/her Deemed
Investment Elections 

  
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for future amounts allocated to his/her Directed Investment Subaccount and amounts already allocated to his/her Directed Investment Subaccount. Any such change shall be made by filing with the
Administrator the appropriate form (including electronic forms) prescribed by the Administrator for that purpose. The Administrator shall establish procedures relating to changes in Deemed Investment Elections, which may include limiting the
percentage, amount and frequency of such changes and specifying the effective date for any such changes. 

Section 5.04 Crediting or Debiting of Investment Experience. Each Participant’s Directed Investment
Subaccount shall be credited or debited, as applicable, daily with the amount which the Participant’s Directed Investment Subaccount would have earned or lost, as applicable, if the amounts credited to such account had, in fact, been invested
in accordance with the Participant’s Deemed Investment Elections. 
 Section 5.05 Dividend Equivalent
Units. If dividends on the Company’s common stock are paid during any period that a Participant holds Common Stock Units in one or more of his/her Directed Investment Subaccounts or Stock Unit Subaccounts, as of the applicable Dividend
Payment Date, a number of additional Common Stock Units shall be credited to such Directed Investment Subaccount(s) or Stock Unit Subaccount(s), as applicable. The number of such additional Common Stock Units to be credited shall be determined by
first multiplying: (a) the total number of Common Stock Units, including fractional units, standing to the Participant’s credit in such account on the day immediately preceding such Dividend Payment Date (including all Dividend Equivalent
Units credited to such account on all previous Dividend Payment Dates); by (b) the per share dollar amount of the dividend paid on such Dividend Payment Date; and then (c) dividing the resulting amount by the closing price of one share of
the Company’s common stock on such Dividend Payment Date. 
 Article 6. Payment of Accounts  

Section 6.01 Payment in General. Upon the occurrence of a Triggering Event that is a Separation from Service or a
Change of Control, the Employer shall, within 90 days thereafter, commence payment of the applicable Distribution Subaccount(s) to the Participant, or his/her Beneficiary, as applicable, in the Form of Payment elected by the Participant with respect
thereto. Upon the occurrence of a Triggering Event that is a specified date or a fixed schedule of payments, the Employer shall commence payment of the applicable Subaccount to the Participant on such specified date or in accordance with such fixed
schedule of payments. The amount of each payment made pursuant to this section shall be based upon the fair market value of the Participant’s Account as of the latest practicable date preceding the payment date and the number of remaining
scheduled payments due. 

  
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 Section 6.02 Specified Employees. Notwithstanding Section 6.01,
upon the occurrence of a Triggering Event that is a Separation from Service (other than on account of death), the Employer shall commence payment of the applicable Distribution Subaccount(s) to the Participant in the Form of Payment elected by the
Participant with respect thereto on the later of: (1) the date that is six months and one day after such Triggering Event; or (2) the date on which such payment was otherwise scheduled to commence. 

Section 6.03 Medium of Payments. Payments attributable to that portion of a Participant’s Directed Investment
Subaccount which is deemed to be invested in Common Stock Units shall be paid in shares of the Company’s common stock for each whole unit and cash for each fraction of a unit. Payments attributable to the remaining portion of a
Participant’s Directed Investment Subaccount shall be paid in cash. Payments attributable to a Participant’s Stock Unit Subaccounts shall be delivered in shares of the Company’s common stock for each whole unit and cash for each
fraction of a unit. 
 Article 7. Beneficiary Designation  

Section 7.01 Right to Designate Beneficiary. The Participant will have the right, at any time, to designate any
person or persons as Beneficiary (both primary and contingent) to whom payment under the Plan will be made in the event of the Participant’s death. The Beneficiary designation will be effective when it is submitted in writing or electronically
to the Administrator during the Participant’s lifetime on a form prescribed by the Administrator. 
 Section 7.02
Cancellation/Revocation of Beneficiary Designation. The submission of a new Beneficiary designation will cancel all prior Beneficiary designations. 

Section 7.03 Failure to Designate Beneficiary or Death of Beneficiary. If a Participant fails to designate a
Beneficiary as provided above, or if every person designated as Beneficiary predeceases the Participant, then the Administrator will direct the distribution of the benefits to the Participant’s estate. If a primary Beneficiary dies after
commencement the Participant’s death but prior to completion of benefits under this Plan, and no contingent Beneficiary has been designated by the Participant, any remaining payments will be paid to the Beneficiary’s estate. 

  
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 Article 8. Plan Administration  

Section 8.01 Administrator’s Responsibilities. The Administrator is responsible for the day to day
administration of the Plan. The Administrator may appoint other persons or entities to perform certain of its functions. Such appointment shall be made and accepted by the appointee in writing and shall be effective upon the written approval of the
Company. The Administrator and any such appointee may employ advisors and other persons necessary or convenient to help him/her carry out his/her duties. The Administrator shall have the right to remove any such appointee from his/her position. Any
person, group of persons or entity may serve in more than one capacity. 
 Section 8.02 Records and Accounts.
All individual and group records relating to Participants and Beneficiaries, and all other records necessary for the proper operation of the Plan, shall be made available to the Employer and to each Participant and Beneficiary for examination during
business hours except that a Participant or Beneficiary shall examine only such records as pertain exclusively to the examining Participant or Beneficiary and those records and documents relating to all Participants generally. 

Section 8.03 Administrator’s Specific Powers and Duties. In addition to any powers, rights and duties set
forth elsewhere in the Plan, the Administrator shall have the following powers and duties: 
 (a) to adopt such rules and
regulations consistent with the provisions of the Plan; 
 (b) to enforce the Plan in accordance with its terms and any rules
and regulations it establishes; 
 (c) to maintain records concerning the Plan sufficient to prepare reports, returns and
other information required by the Plan or by law; 
 (d) to construe and interpret the Plan and to resolve all questions
arising under the Plan; 
 (e) to direct the Employer to pay benefits under the Plan, and to give such other directions and
instructions as may be necessary for the proper administration of the Plan; 
 (f) to engage assistants and professional
advisors. 
 Section 8.04 Construction of the Plan. The Administrator shall have the sole and absolute
discretion to interpret the Plan and shall resolve all questions arising in the administration, interpretation and application of 

  
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the Plan. The Administrator shall correct any defect, reconcile any inconsistency, or supply any omission with respect to this Plan. All such corrections, reconciliations, interpretations and
completions of Plan provisions shall be final and binding upon the parties. 
 Section 8.05 Employer’s
Responsibility to Administrator. Each Employer shall furnish the Administrator such data and information as it may require. The records of the Employer shall be determinative of each Participant’s period of employment, termination of
employment and the reason therefor, leave of absence, reemployment, years of service, personal data, and compensation reductions. Participants and their Beneficiaries shall furnish to the Administrator such evidence, data, or information, and
execute such documents, as the Administrator requests. 
 Section 8.06 Engagement of Assistants and Advisers; Plan
Expenses. The Administrator shall have the right to hire such professional assistants and consultants as it, in its sole discretion, deems necessary or advisable, including, but not limited to: 

(a) investment managers and/or advisers; 

(b) accountants; 

(c) actuaries; 

(d) attorneys; 

(e) consultants; and 

(f) clerical and office personnel. 

Section 8.07 Liability. Neither the Administrator nor the Employer shall be liable to any person for any action
taken or omitted in connection with the administration of this Plan unless attributable to its own fraud or willful misconduct; nor shall the Employer be liable to any person for such action unless attributable to fraud or willful misconduct on the
part of a director, officer or employee of the Employer. 
 Section 8.08 Payment of Expenses. If directed by the
Company, expenses of the Administrator incurred in the operation or administration of this Plan shall be charged against the Participant’s Accounts to which the expense relates. If an expense is applicable to more than one Participant’s
Accounts, the expense shall be allocated among such Participants’ Accounts in a non-discriminatory manner as determined by the Company. 

  
 15 

 Section 8.09 Indemnity of Administrator. The Employer shall indemnify
the Administrator (including any individual who is a member of a committee serving as the Administrator) or any individual who is a delegate of the Administrator against any and all claims, loss, damage, expense or liability arising from any action
or failure to act, except when due to gross negligence or willful misconduct. 
 Article 9. Amendment or Termination  

Section 9.01 Amendment. The Board of Directors of the Company, or its delegate, may amend the Plan at any time and
from time to time and any amendment may have retroactive effect, including, without limitation, amendments to the amount of contributions; provided, however, that no amendment shall (i) reduce the value of a Participant’s Account or
(ii) change the form or timing of payment of an amount contributed prior to the date of amendment. 
 Section 9.02
Termination. While the Plan is intended to be permanent, the Board of Directors of the Company, or its delegate, may at any time terminate or partially terminate the Plan, provided that upon such termination, except to the extent otherwise
permitted under Code Section 409A, all Accounts will be distributed in accordance with the terms of the Plan as in effect on the date of termination. Written notice of such termination or partial termination, setting forth the date and terms
thereof, shall be given to the Administrator. 
 Section 9.03 Change in Control. Notwithstanding the foregoing,
following a Change in Control (as such term is defined in the Company’s Equity and Incentive Plan) no amendment or termination referenced in Section 9.01 or 9.02, respectively, may adversely affect any benefits accrued or deferrals made
under the Plan prior to the adoption of the amendment or termination (including, without limitation, any terms, conditions or distribution alternatives applicable to such accrued benefits). In addition, for a period of two years following a Change
in Control, the Plan shall not be terminated in whole or in part or be amended in any way that adversely affects or limits the terms and conditions of benefits as available pursuant to the Plan immediately prior to the Change in Control. 

Article 10. Miscellaneous  

Section 10.01 Section 16 Person. With respect to Section 16 Persons, the Administrator may establish, in
writing, such rules, regulations, policies or practices hereunder which it deems, in its sole discretion, to be necessary and appropriate. 

Section 10.02 Claims Review. In any case in which a claim for Plan benefits of a Participant or Beneficiary is
denied or modified, the Administrator shall furnish written notice to the claimant within 90 days (or within 180 days if additional information requested by the Administrator necessitates an extension of the 90-day period), which notice shall: 

(a) State the specific reason or reasons for the denial or modification; 

  
 16 

 (b) Provide specific reference to pertinent Plan provisions on which the denial
or modification is based; 
 (c) Provide a description of any additional material or information necessary for the
Participant, his/her Beneficiary, or representative to perfect the claim and an explanation of why such material or information is necessary; and 

(d) Explain the Plan’s claim review procedure as contained herein, including the claimant’s right to bring a civil
action under Section 502(a) of ERISA following an adverse review determination. 
 In the event a claim for Plan
benefits is denied or modified, if the Participant, his/her Beneficiary, or a representative of such Participant or Beneficiary desires to have such denial or modification reviewed, he/she must, within 60 days following receipt of the notice of such
denial or modification, submit a written request for review by the Administrator of its initial decision. In connection with such request, the Participant, his/her Beneficiary, or the representative of such Participant or Beneficiary may review any
pertinent documents upon which such denial or modification was based and may submit issues and comments in writing. Within 60 days following such request for review the Administrator shall, after providing a full and fair review, render its final
decision in writing to the Participant, his/her beneficiary or the representative of such Participant or Beneficiary stating specific reasons for such decision, making specific references to pertinent Plan provisions upon which the decision is based
and stating that the claimant is entitled to receive, upon request and free of charge, reasonable access to, and copies of, all documents, records, and other information relevant to the claim. If special circumstances require an extension of such
60-day period, the Administrator’s decision shall be rendered as soon as possible, but not later than 120 days after receipt of the request for review. If an extension of time for review is required, written notice of the extension shall be
furnished to the Participant, Beneficiary, or the representative of such Participant or Beneficiary prior to the commencement of the extension period. 

Section 10.03 Limitation of Participant’s Rights. Nothing in this Plan shall be construed as conferring upon
any Participant any right to continue in the employment of an Employer, nor shall it interfere with the rights of an Employer to terminate the employment of any Participant and/or take any personnel action affecting any Participant without regard to
the effect which such action may have upon such Participant as a recipient or prospective recipient of benefits under the Plan. 

  
 17 

 Section 10.04 Obligations to Employer. If a Participant becomes
entitled to a distribution of benefits under the Plan, and if at such time the Participant has outstanding any debt, obligation, or other liability representing an amount owing to an Employer, then such Employer may offset such amount owed to it
against the amount of benefits otherwise distributable. Such determination shall be made by the Administrator. 

Section 10.05 Nonalienation of Benefits. Except as expressly provided herein, no Participant or Beneficiary shall
have the power or right to transfer (otherwise than by will or the laws of descent and distribution), alienate, or otherwise encumber the Participant’s interest under the Plan. Any such attempted assignment shall be considered null and void.
The interest of any Participant or any beneficiary receiving payments hereunder shall not be subject in any manner to anticipation, alienation, sale, transfer, assignment, pledge, encumbrance, attachment, or garnishment by creditors of the
Participant or the Participant’s Beneficiary. An Employer’s obligations under this Plan are not assignable or transferable except to (a) a business entity which acquires all or substantially all of an Employer’s assets or
(b) any business entity into which an Employer may be merged or consolidated. 
 Section 10.06 Unfunded Status
of Plan. The Plan is intended to constitute an “unfunded” plan of deferred compensation for Participants for tax and for purposes of Title I of ERISA. The Plan constitutes a mere promise by the Employer to make benefit payments in the
future. Each Employer shall not be liable for any benefit payments to any other Employer’s Eligible Employees who are Participant is this Plan. Benefits payable hereunder shall be payable out of the general assets of the applicable Employer,
and no segregation of any assets whatsoever for such benefits shall be made. With respect to any payments not yet made to a Participant, nothing contained herein shall give any such Participant any rights that are greater than those of a general
creditor of his/her Employer. 
 Section 10.07 Severability. If any provision of this Plan is held
unenforceable, the remainder of the Plan shall continue in full force and effect without regard to such unenforceable provision and shall be applied as though the unenforceable provision were not contained in the Plan. 

Section 10.08 Gender, Singular & Plural. All pronouns and any variations thereof shall be deemed to refer
to the masculine, feminine, or neuter, as the identity of the person or persons may require. As the context may require, the singular may be read as the plural and the plural as the singular. 

  
 18 

 Section 10.09 Notice. Any notice or filing required or permitted to
be given to the Administrator under the Plan shall be sufficient if in writing and hand delivered, or sent by registered or certified mail, to the Administrator or to such representatives as the Administrator may designate from time to time. Such
notice shall be deemed given as to the date of delivery or, if delivery is made by mail, as of the date shown on the postmark on the receipt for registration or certification. 

Section 10.10 Governing Law. The Plan shall be governed and construed under the laws of the State of Delaware to
the extent not preempted by Federal law which shall otherwise control. 
 Section 10.11 Binding Terms. The
provisions of the Plan shall be binding upon and inure to the benefit of the parties hereto, their respective heirs, executors, administrators and successors. 

Section 10.12 Headings. All headings preceding the text of the several Sections hereof are inserted solely for
reference and shall not constitute a part of this Plan, nor affect its meaning, construction or effect. 

Section 10.13 Representations. The Employer does not represent or guarantee that any particular federal or state
income, payroll, personal property or other tax consequence will result from participation in the Plan. A Participant should consult with professional tax advisors to determine the tax consequences of his/her participation. In addition, the Company
does not represent or guarantee positive Credited Investment Return and shall not be required to restore any negative Credited Investment Return. 

Section 10.14 Compliance with Section 409A. The Company intends that this Plan provide for the deferral of
compensation as permitted under Code Section 409A. If any provision of this Plan is determined to be inconsistent with such intent, it shall be severable and the balance of this Plan shall remain in full force and effect. 

  
 19EX-4.4

 Exhibit 4.4 

E. I. DU PONT DE NEMOURS AND COMPANY 

STOCK ACCUMULATION AND DEFERRED 

COMPENSATION PLAN FOR DIRECTORS 

(Amended Effective August 31, 2017) 
 1.
PURPOSE OF THE PLAN 
 The purpose of the DuPont Stock Accumulation and Deferred Compensation Plan for Directors (the “Plan”) is to permit
Directors to defer the payment of all or a specified part of their compensation for services performed as Directors. 
 This amendment and restatement of
the Plan (“2009 Restatement”) is intended to reflect the requirements of Section 409A of the Internal Revenue Code of 1986, as amended (“Code”) and the rulings and regulations issued thereunder (collectively, “Code
Section 409A”) and shall be administered and construed in accordance with such requirements. 
 The provisions of this 2009 Restatement shall
apply to amounts deferred in taxable years beginning after December 31, 2008. Notwithstanding the foregoing, paragraph 11 of this 2009 Restatement shall, to the extent provided therein, apply to amounts deferred in taxable years before 2009;
provided, however, that such amounts were not: (i) earned and vested before January 1, 2005; and (ii) paid to a Director on or before December 31, 2008. For purposes of this paragraph, a right to an amount is earned and vested
only if the amount is not subject to a substantial risk of forfeiture for purposes of Code Section 409A. 
 2. ELIGIBILITY 

Members of the Board of Directors of the Company who are not employees of the Company or any of its subsidiaries or affiliates shall be eligible under this
Plan to defer compensation for services performed as Directors. 
 3. ADMINISTRATION AND AMENDMENT 

The Plan shall be administered by the Compensation Committee of the Board of Directors (the “Committee”). The decision of the Committee with respect
to any questions arising as to the interpretation of this Plan, including the severability of any and all of the provisions thereof, shall be final, conclusive and binding. The Board of Directors of the Company reserves the right to modify the Plan
from time to time, or to terminate the Plan entirely, provided, however, that (1) no modification of the Plan shall operate to annul an election already in effect for the current calendar year or any preceding calendar year; (2) that the
foregoing shall not preclude any amendment necessary or desirable to conform to changes in applicable law, including, but not limited to, changes in the Code; and (3) upon termination of the Plan, except to the extent otherwise permitted under
Code Section 409A, all balances will be distributed in accordance with the terms of the Plan as in effect on the date of termination. 
 The Committee
is authorized, subject to the provisions of the Plan, from time to time to establish such rules and regulations as it deems appropriate for the proper administration of the Plan, and to make such determinations and take such steps in connection
therewith as it deems necessary or advisable. 

  
 1 

 4. COMPLIANCE WITH SECTION 16 OF THE EXCHANGE ACT / CHANGE IN LAW 

It is the Company’s intent that the Plan comply in all respects with Rule 16b-3 of the Exchange Act, or its successor, and any regulations promulgated
thereunder. If any provision of this Plan is found not to be in compliance with such rule and regulations, the provision shall be deemed null and void, and the remaining provisions of the Plan shall continue in full force and effect. All
transactions under this Plan shall be executed in accordance with the requirements of Section 16 of the Exchange Act and the regulations promulgated thereunder. 

The Board of Directors may, in its sole discretion, modify the terms and conditions of this Plan in response to and consistent with any changes in applicable
law, rule or regulation. 
 5. ELECTION TO DEFER AND FORM OF PAYMENT 

On or before December 31 of any calendar year, a Director may elect to defer, in the form of cash or stock units, the payment of all or a specified part
of all fees payable to the Director for services as a Director during the following calendar year. 
 To the extent permitted under Code Section 409A,
any person who shall become a Director during any calendar year, and who was not a Director of the Company on the preceding December 31, may elect, within thirty days after election to the Board, to defer in the same manner the receipt of the
payment of all or a specified part of fees not yet earned for the remainder of that calendar year in the form of cash or stock units. 
 At the time a
Director elects to defer his/her fees for a calendar year, he/she must also elect: 
  

	 	i.	the payment event for such deferred amounts (a specified calendar year or his/her separation from service (within the meaning of Code Section 409A)) 

 

	 	ii.	with respect to amounts deferred to separation from service, the form of payment (lump sum or equal annual installments) 

  

	 	iii.	the number of equal annual installments, if applicable; and 

  

	 	iv.	the calendar year following his/her separation from service in which payment(s) of such deferred amounts shall commence (if distribution is to commence by reason of a separation from service). For purposes of clarity,
calendar year in this context refers to the sequential calendar year following separation from service (for example, first calendar year, second calendar year, etc.)) 

Amounts deferred to a specified year shall be payable only in a lump sum during the specified calendar year. If amounts are payable in equal annual
installments, the first annual installment shall be made in the calendar year specified pursuant to (iv) above with remaining installments paid in successive calendar years until all installments have been paid. 

Elections shall be made by written notice delivered to the Secretary of the Committee. All such elections as to deferral and form of payment are irrevocable.

  
 2 

 6. DIRECTORS’ ACCOUNTS 

Fees deferred in the form of cash shall be held in the general funds of the Company and shall be credited to an account in the name of the Director. Deferred
cash will bear interest at a rate corresponding to the average 30-year Treasury securities rate applicable for the quarter (or at such other rate as may be specified by the Committee from time to time). Interest will be compounded quarterly and will
also be deferred. If the rate changes, the new rate will apply to all deferred cash amounts beginning with the following quarter. Fees deferred in the form of stock units shall be allocated to each Director’s account based on the closing price
of the Company’s common stock as reported on the Composite Tape of the New York Stock Exchange (“Stock Price”) on the date the fees would otherwise have been paid. The Company shall not be required to reserve or otherwise set aside
shares of common stock for the payment of its obligations hereunder, but shall make available as and when required a sufficient number of shares of common stock to meet the needs of the Plan. An amount equal to any cash dividends (or the fair market
value of dividends paid in property other than dividends payable in common stock of the Company) payable on the number of shares represented by the number of stock units in each Director’s account will be allocated to each Director’s
account in the form of stock units based upon the Stock Price on the dividend payment date. Any stock dividends payable on such number of shares will be allocated in the form of stock units. If adjustments are made to outstanding shares of common
stock as a result of split-ups, recapitalizations, mergers, consolidations and the like, an appropriate adjustment shall also be made in the number of stock units in a Director’s account. Stock units shall not entitle any person to rights of a
stockholder unless and until shares of Company common stock have been issued to that person with respect to stock units as provided in Article 7. 
 7.
PAYMENT FROM DIRECTORS’ ACCOUNTS 
 The aggregate amount of deferred fees, together with interest and dividend equivalents accrued thereon, shall be
paid in accordance with the time and form of payment elections made by the Director under paragraph 5. Amounts credited to a Director’s account in cash shall be paid in cash and amounts credited in stock units shall be paid in one share of
common stock of the Company for each stock unit, except that a cash payment will be made with any final installment for any fraction of a stock unit remaining in the Director’s account. Such fractional share shall be valued at the closing Stock
Price on the date of settlement. Restricted stock units payable in cash, and the dividend equivalents associated with such deferred units, shall be paid in cash, each unit to equal the value of one share of DuPont common stock based on the average
of the high and low prices of DuPont common stock as reported on the Composite Tape of the New York Stock Exchange as of the effective date of payment. 

8. PAYMENT IN EVENT OF DEATH 
 A Director may file with the
Secretary of the Committee a written designation of a beneficiary for his or her account under the Plan on such form as may be prescribed by the Committee, and may, from time to time, amend or revoke such designation. If a Director should die before
all deferred amounts credited to the Director’s account have been distributed, the balance of any deferred fees and interest and dividend equivalents then in the Director’s account shall be paid to the Director’s designated
beneficiary upon 

  
 3 

 
the Director’s death. If the Director did not designate a beneficiary, or in the event that the beneficiary designated by the Director shall have predeceased the Director, the balance in the
Director’s account shall be paid promptly to the Director’s estate. 
 9. NONASSIGNABILITY 

During a Director’s lifetime, the right to any deferred fees, including interest and dividend equivalents thereon, shall not be transferable or
assignable, except as may otherwise be provided in rules established by the Committee. 
 10. GOVERNING LAW 

The validity and construction of the Plan shall be governed by the laws of the State of Delaware. 

11. PRIOR PLAN AMOUNTS 
 Notwithstanding anything in this Plan to
the contrary, this paragraph 11 shall, to the extent provided herein, apply to amounts deferred in taxable years beginning before 2009; provided, however, that such amounts were not: (i) earned and vested before January 1, 2005; and
(ii) paid to a Director on or before December 31, 2008. For purposes of this paragraph, a right to an amount is earned and vested only if the amount is not subject to a substantial risk of forfeiture for purposes of Code Section 409A
and the applicable rulings and regulations issued thereunder. 
 To the extent that an amount is payable in connection with a Director’s retirement or
other separation from service as Director of the Company, no amounts shall be paid hereunder on account thereof unless such retirement or separation from service constitutes a separation from service within the meaning of Code Section 409A.

 To the extent that an amount is payable promptly at the beginning of a calendar year, whether as a result of a Director’s deferral election or the
terms of a prior plan document, such amount shall be paid no later than the last day of that calendar year. 
 12. MERGER INVOLVING THE DOW CHEMICAL COMPANY

 Effective as of the “Closing Date” (as that term is defined in that certain Agreement and Plan of Merger, dated as of December 11, 2015 (as
it may be amended from time to time, the “Merger Agreement”), by and among DowDuPont Inc. (f/k/a Diamond-Orion HoldCo, Inc. (“DWDP”)), The Dow Chemical Company (“Dow”), Diamond Merger Sub, Inc., E. I. du Pont de Nemours
and Company (“DuPont”) and Orion Merger Sub, Inc.), DuPont became a subsidiary of DWDP (the “Merger”), and, to the extent applicable under the terms of this Plan, the Merger constituted a “Change in Control” for
purposes of this Plan. Accordingly, as of the Closing Date, to the extent applicable in respect of this Plan: (i) any amounts under the Plan that otherwise would have been denominated in the common stock of DuPont shall be deemed denominated in
shares of common stock of DWDP, subject to and in accordance with the applicable terms of the Merger Agreement; (ii) the conditions to participation in the Plan shall not be changed from those in effect immediately before the Closing Date (such
that, among other things, only those service providers of DuPont or its subsidiaries (and not any service providers of Dow or its subsidiaries in their capacity as such) shall be eligible to participate in the Plan); (iii) the terms and
conditions of the administration of the Plan shall not be changed from those in effect immediately before the Closing Date (or as previously may have 

  
 4 

 
been provided by DuPont to be effective as of or following the Closing Date) except that, in any event, in respect of participation by directors or executive officers of DWDP, the Plan shall be
administered by the Compensation Committee of the Board of Directors of DWDP to the extent required to comply with the requirements of applicable law or any exchange on which the capital stock of DWDP may be listed; and (iv) the Plan otherwise
shall be administered and interpreted to (A) conform to the terms and conditions of the Merger Agreement and further the intended effects of the Merger and (B) not result in the imposition of any tax under Section 409A of the Internal
Revenue Code of 1986, as amended. 

  
 5

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