Document:

Exhibit

Exhibit 4.3
THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF BT GLOBENET NOMINEES LIMITED, AS NOMINEE FOR DEUTSCHE BANK AG LONDON BRANCH, AS DEPOSITARY (THE “DEPOSITARY”) FOR CLEARSTREAM BANKING, SOCIÉTÉ ANONYME AND EUROCLEAR BANK, S.A./N.V. , WHICH MAY BE TREATED BY THE ISSUER, THE TRUSTEE AND ANY AGENT THEREOF AS OWNER AND HOLDER OF THIS SECURITY FOR ALL PURPOSES. THIS SECURITY IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY, BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH A SUCCESSOR DEPOSITARY.
CELANESE US HOLDINGS LLC
1.250% SENIOR NOTES DUE 2025
No. 1     €300,000,000
Common No. 171347467
ISIN No. XS1713474671
CELANESE US HOLDINGS LLC, a Delaware limited liability company, for value received, promises to pay to BT GLOBENET NOMINEES LIMITED, or registered assigns, the principal sum of THREE HUNDRED MILLION Euros (€300,000,000) on February 11, 2025.
Interest Payment Dates:  February 11.
Regular Record Dates:  January 27.
Additional provisions of this Note are set forth on the other side of this Note.

IN WITNESS WHEREOF, the Issuer has caused this instrument to be duly executed.
	
				
	 
	 
	 
	 

	 
	CELANESE US HOLDINGS LLC 

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

Dated:  December 11, 2017

AUTHENTICATING AGENT'S CERTIFICATE OF AUTHENTICATION
This is one of the Notes of the series designated therein referred to in the within-mentioned Indenture.
Dated:     December 11, 2017
	
				
	 
	 
	 
	 

	 
	DEUTSCHE BANK TRUST COMPANY AMERICAS

	 
	as Authenticating Agent

	 
	By:
	 

	 
	 
	Authorized Officer

(Reverse of Note)
1.250% Senior Note due 2025
1.    Interest
CELANESE US HOLDINGS LLC, a Delaware limited liability company (the “Issuer”), promises to pay interest on the principal amount of this Note at the rate per annum shown above.  The Issuer shall pay interest annually on February 11 of each year, commencing February 11, 2018, and on the final maturity date of the Notes.  Interest on the Notes shall accrue from the most recent date to which interest has been paid or duly provided for or, if no interest has been paid or duly provided for, from December 11, 2017 until the principal hereof is due.  Interest shall be computed on the basis of the actual number of days in the period for which interest is being calculated and the actual number of days from and including the last date on which interest was paid on the notes (or December 11, 2017, if no interest has been paid on the notes), to but excluding the next scheduled interest payment date.  The Issuer shall pay interest on overdue principal and premium, if any, at the rate borne by the Notes, and it shall pay interest on overdue installments of interest at the same rate to the extent lawful.
2.    Method of Payment
The Issuer shall pay interest and additional amounts, if any, the Notes (except defaulted interest) to the Persons who are registered Holders at the close of business on the January 27 next preceding the interest payment date even if Notes are canceled after the record date and on or before the interest payment date (whether or not a Business Day).  Holders must surrender Notes to a Paying Agent to collect principal payments.  The Issuer shall pay principal, premium, if any, and interest in money of the member states of the European Union that have adopted or that adopt the single currency in accordance with the treaty establishing the European Community, as amended by the Treaty on European Union, that at the time of payment is legal tender for payment of public and private debts.  Payments in respect of the Notes represented by a Global Security (including principal, premium, interest and additional amounts, if any) shall be made by wire transfer of immediately available funds to the accounts specified by Deutsche Bank Trust Company Americas, the Issuer or any successor depositary.  The Issuer will make all payments in respect of a certificated Note (including principal, premium, interest and additional amounts, if any), at the office of each Paying Agent, except that, at the option of the Issuer, payment of interest may be made by mailing a check to the registered address of each Holder thereof. Such payment will be in Euros.
3.    Paying Agent and Registrar
Initially, Deutsche Bank Trust Company Americas will act as Paying Agent and as Registrar.  The Issuer may appoint and change any Paying Agent or Registrar without notice.  The Issuer or any of its Subsidiaries may act as Paying Agent or Registrar.
4.    Indenture
The Issuer issued the Notes under an Indenture (the “Base Indenture”), dated as of May 6, 2011, among the Issuer, Celanese Corporation, a Delaware corporation (the “Parent Guarantor”), and the Trustee, as amended with respect to the Notes by the Seventh Supplemental Indenture dated December 11, 2017 (the “Seventh Supplemental Indenture”) and, together with the Base Indenture, the “Indenture”), among the Issuer, the guarantors party thereto (the “Guarantors”), Wells Fargo Bank, National Association, as Trustee, Deutsche Bank Trust Company Americas (until such time as a successor may be appointed by the Issuer), as paying agent, and Deutsche Bank Trust Company Americas (until such time as a successor may be appointed by the Issuer), as registrar and transfer agent, which collectively constitutes the Indenture governing the Notes.  The terms of the Notes include those stated in the Indenture and those made part of the Indenture by reference 

to the Trust Indenture Act of 1939, as amended as in effect on the date of the Indenture (the “TIA”).  The Notes include all terms and provisions of the Indenture, and Holders are referred to the Indenture and the TIA for a statement of such terms and provisions.  This Note is one of a series of securities designated as the 1.250% Senior Notes due 2025 of the Issuer.  Capitalized terms used herein have the same meanings given in the Indenture unless otherwise indicated.
The aggregate principal amount at maturity of the Notes which may be authenticated and delivered under the Indenture shall be unlimited.  In addition, the aggregate principal amount of Securities of any class or series which may be authenticated and delivered under the Indenture shall be unlimited, provided that such Securities shall rank equally with the Notes.
5.    Redemption
The Notes are subject to redemption as provided in Sections 3.2 and 3.3 of the Seventh Supplemental Indenture.
6.    Sinking Fund
The Notes are not entitled to the benefit of any mandatory redemption or sinking fund.
7.    Denominations, Transfer, Exchange
The Notes are in fully registered form without coupons in denominations of €100,000 and integral multiples of €1,000 in excess thereof.  A registered Holder may transfer or exchange Notes in accordance with the Indenture.  Upon any such transfer or exchange, the Registrar and the Trustee may require a Holder, among other things, to furnish appropriate endorsements or transfer documents.  No service charge shall be made for any registration of transfer or exchange, but the Issuer or the Trustee may require the payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection therewith permitted by the Indenture.  The Registrar need not register the transfer of or exchange any Notes selected for redemption (except, in the case of a Note to be redeemed in part, the portion of the Note not to be redeemed) or to transfer or exchange any Note for a period of 15 days prior to a selection of Notes to be redeemed.
8.    Persons Deemed Owners
The registered Holder of this Note shall be treated as the owner of it for all purposes.
9.    Unclaimed Money
Subject to any applicable abandoned property law, if money for the payment of principal or interest held by the Trustee or a Paying Agent remains unclaimed for two years, the Trustee or Paying Agent, as applicable, shall pay the money to the Issuer upon written request. Thereafter, Holders entitled to the money must look to the Issuer for payment as general creditors, and the Trustee and each Paying Agent shall have no further liability with respect to such monies.
10.    Discharge and Defeasance
Subject to certain conditions and limitations set forth in the Indenture, the Issuer may terminate some of or all its obligations under the Notes and the Indenture if the Issuer deposits with the Trustee money or Euro-Denominated Designated Government Obligations for the payment of principal of, premium, interest and additional amounts, if any, on, the Notes to redemption or maturity, as the case may be.

11.    Modification and Waiver
Subject to certain exceptions set forth in the Indenture, the Indenture and the Notes may be amended, or default may be waived, with the consent of the Holders of a majority in principal amount of the outstanding Notes.  Without notice to or the consent of any Holder, the Issuer and the Trustee may amend or supplement the Indenture or the Notes to, among other things, cure any ambiguity, defect or inconsistency.
12.    Defaults and Remedies
If an Event of Default occurs (other than an Event of Default relating to certain events of bankruptcy, insolvency or reorganization of the Issuer set forth in the Indenture) and is continuing, the Trustee or the Holders of at least 25% in principal amount of the outstanding Notes, in each case, by notice to the Issuer, may declare the principal of, premium, if any, and accrued but unpaid interest on all the Notes to be due and payable.  If an Event of Default relating to certain events of bankruptcy, insolvency or reorganization of the Issuer occurs, the principal of, premium, if any, and interest on all the Notes shall become immediately due and payable without any declaration or other act on the part of the Trustee or any Holders.  Under certain circumstances, the Holders of a majority in principal amount of the outstanding Notes may rescind any such acceleration with respect to the Notes and its consequences.
13.    Trustee Dealings with the Issuer
Subject to certain limitations imposed by the TIA, the Trustee under the Indenture, in its individual or any other capacity, may become the owner or pledgee of Notes and may otherwise deal with and collect obligations owed to it by the Issuer or its Affiliates and, subject to the Indenture, may otherwise deal with the Issuer or its Affiliates with the same rights it would have if it were not Trustee.
14.    Guarantees 
The Note will be entitled to the benefits of certain Guarantees made for the benefit of the Holders. Reference is hereby made to the Indenture for a statement of the respective rights, limitations of rights, duties and obligations thereunder of the Guarantors, the Trustee and the Holders.
15.    No Recourse Against Others
No director, officer, employee, incorporator or holder of any equity interests in the Issuer or any Guarantor shall have any liability for or any obligations, covenants or agreements of the Issuer or the Guarantors under the Notes or the Indenture or for any claim based thereon or otherwise in respect of, or by reason of, such obligations or their creation. By accepting a Note, each holder expressly waives and releases all such liability.  The waiver and release are a condition of, and part of the consideration for, the execution of the Indenture and the issuance of the Notes.
16.    Authentication
This Note shall not be valid until an authorized signatory of the Trustee or authorizing agent manually signs the certificate of authentication on the other side of this Note.
17.    Abbreviations
Customary abbreviations may be used in the name of a holder or an assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the entireties), JT TEN (=joint tenants with rights of survivorship and not as tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gifts to Minors Act).

18.    Governing Law
THE INDENTURE AND THIS NOTE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE INTERNAL LAWS OF THE STATE OF NEW YORK.
19.    Common Code and ISIN
Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Issuer has caused the Common Code and ISIN to be printed on this Note and has directed the Trustee to use the Common Code and ISIN in notices of redemption as a convenience to Holders.  No representation is made as to the accuracy of such number either as printed on this Note or as contained in any notice of redemption and reliance may be placed only on the other identification numbers placed thereon.
The Issuer will furnish to any Holder of Notes upon written request and without charge to the Holder a copy of the Indenture and a copy of this Note.

ASSIGNMENT FORM
To assign this Note, fill in the form below:
I or we assign and transfer this Security to
________________________________________________________________________ 
(Print or type assignee’s name, address and zip code)
________________________________________________________________________ 
(Insert assignee’s soc. sec. or tax I.D. No.)
and irrevocably appoint ____________ agent to transfer this Note on the books of the Issuer.  The agent may substitute another to act for him.
________________________________________________________________________
	
					
	Date:
	 
	 
	Your Signature:
	 

	 
	 
	 
	 
	(Sign exactly as your name appears on the face of this Note.)

SIGNATURE GUARANTEE
Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program (“STAMP”) or such other “signature guarantee program” as may be determined by the Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

OPTION OF HOLDER TO ELECT PURCHASE
If you want to elect to have all or any part of this Note purchased by the Issuer pursuant to Section 4.5 of the Seventh Supplemental Indenture, check the box:   ̈
If you want to have only part of the Note purchased by the Issuer pursuant to Section 4.5 of the Seventh Supplemental Indenture, state the amount you elect to have purchased:
	
			
	 
	 
	 

	€
	 

	(multiple of €1,000)

	 Date:
	 

	
					
	 
	 
	 
	Your Signature:
	 

	 
	 
	 
	 
	(Sign exactly as your name appears on the face of this Note.)

SIGNATURE GUARANTEE
Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program (“STAMP”) or such other “signature guarantee program” as may be determined by the Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

SCHEDULE OF INCREASES OR DECREASES IN GLOBAL SECURITY
The initial principal amount of this Global Security is €300,000,000.  The following increases or decreases in this Global Security have been made:
	
									
	Date of 
Exchange
	 
	Amount of decrease in 
Principal Amount of 
this Global Security
	 
	Amount of increase 
in Principal Amount of this Global Security
	 
	Principal Amount 
of this Global Security following such decrease or increase
	 
	Signature of 
authorized signatory 
of Trustee or Debt 
Securities Custodian

	 
	 
	 
	 
	 
	 
	 
	 
	 

NOTATION OF SUBSIDIARY GUARANTEE
Each of the undersigned (the “Subsidiary Guarantors”) hereby jointly and severally unconditionally guarantees, to the extent set forth in the Seventh Supplemental Indenture and subject to the provisions in the Indenture dated as of May 6, 2011 (the “Base Indenture”), among Celanese US Holdings LLC, a Delaware limited liability company (the “Issuer”), Celanese Corporation, a Delaware corporation and Wells Fargo Bank, National Association, as trustee (the “Trustee”), as amended with respect to the Notes by the Seventh Supplemental Indenture dated December 11, 2017 (the “Seventh Supplemental Indenture”), among the Issuer, the guarantors party thereto (the “Guarantors”) the Trustee, Deutsche Bank Trust Company Americas (until such time as a successor may be appointed by the Issuer), as paying agent, as registrar and as transfer agent, which collectively constitutes the indenture governing the Debt Securities (the Base Indenture, as amended by the Seventh Supplemental Indenture, the “Indenture”), (a) the due and punctual payment of the principal of, premium, if any, and interest on the Notes, when and as the same shall become due and payable, whether at maturity, by acceleration or otherwise, the due and punctual payment of interest on overdue principal of, premium, if any, and, to the extent permitted by law, interest on the Notes, and the due and punctual performance of all other obligations of the Issuer to the Holders or the Trustee, and (b) in case of any extension of time of payment or renewal of any Notes or any of such other obligations, that the same will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at stated maturity, by acceleration or otherwise.
The obligations of the Subsidiary Guarantors to the Holders and to the Trustee pursuant to this Guarantee and the Indenture are expressly set forth in Article Six of the Seventh Supplemental Indenture, and reference is hereby made to the Indenture for the precise terms and limitations of this Guarantee.  Each Holder of the Note to which this Guarantee is endorsed, by accepting such Note, agrees to and shall be bound by such provisions.

[Signatures on Following Pages]

IN WITNESS WHEREOF, each of the Subsidiary Guarantors has caused this Guarantee to be signed by a duly authorized officer.
	
			
	 
	CELANESE AMERICAS LLC

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

	
			
	 
	CELANESE ACETATE LLC

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

	
			
	 
	CELANESE CHEMICALS, INC.

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

	
			
	 
	CNA HOLDINGS LLC

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

	
			
	 
	CELANESE INTERNATIONAL CORPORATION

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

	
			
	 
	CELTRAN, INC.

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

	
			
	 
	KEP AMERICAS ENGINEERING PLASTICS, LLC

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

	
			
	 
	TICONA FORTRON INC.

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

[Notation of Guarantee]

	
			
	 
	TICONA POLYMERS, INC.

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

	
			
	 
	TICONA LLC

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

	
			
	 
	CELANESE GLOBAL RELOCATION LLC

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

	
			
	 
	CELANESE LTD.

	 
	By:
	CELANESE INTERNATIONAL CORPORATION, its general partner

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

	
			
	 
	CELANESE SALES U.S. LTD.

	 
	By:
	CELANESE INTERNATIONAL CORPORATION, its general partner

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:

[Notation of Guarantee]

NOTATION OF PARENT GUARANTEE
For value received, the Parent Guarantor hereby absolutely, unconditionally and irrevocably guarantees to the holder of this Security the payment of principal of, premium, if any, and interest on, the Security upon which this Parent Guarantee is set forth in the amounts and at the time when due and payable whether by declaration thereof, or otherwise, and interest on the overdue principal, premium, if any, and, to the extent lawful, interest, on such Security, to the holder of such Security and the Trustee on behalf of the Holders, all in accordance with and subject to the terms and limitations of such Security and Article XI of the Base Indenture.  This Parent Guarantee will not become effective until the Trustee or Authenticating Agent duly executes the certificate of authentication on this Security.  This Parent Guarantee shall be governed by and construed in accordance with the laws of the State of New York, without regard to conflict of law principles thereof.
Dated:
	
				
	 
	 
	 
	 

	 
	CELANESE CORPORATION
 

	 
	By:
	 

	 
	 
	Name:

	 
	 
	Title:EX-10.1

 Exhibit 10.1 

December 5, 2017 
 Michael A. Bell 

c/o inVentiv Health, Inc. 
 400 Atlantic Ave. 

Boston, MA 02210 
 Dear Mike, 

As previously discussed, and in recognition of your service and contributions to INC Research Holdings, Inc. (“INC”), we are pleased to enter
into this letter agreement which outlines the terms of your transition. Accordingly, this letter agreement amends the terms of your Amended and Restated Employment, Severance and Non-Competition Agreement with
inVentiv dated November 15, 2016, as amended May 10, 2017 (the “Employment Agreement”). Except as set forth below, all terms and conditions of your Employment Agreement will continue as is. Terms not defined herein will
have the meanings set forth in your Employment Agreement. 
  

	 	1.	Your New Role. On December 1, 2017, you ceased to be the President, Commercial Division and an executive officer of INC. At such time, and during the period from December 1, 2017 through April 1,
2018 (the “Transition Period”) you agree to serve as an employee in a non-executive role with INC’s Commercial Division and will provide transition assistance to INC and the
incoming head of the Commercial Division. You agree that you will not have “Good Reason” to resign during the Transition Period but we agree you will have “Good Reason” to resign beginning on April 1, 2018.

 Notwithstanding Section 1 of the May 10, 2017 amendment to your Employment Agreement and Section 6.8 of the
Stockholders’ Agreements, dated May 10, 2017, between INC and the stockholders that are signatories thereto, you will continue to serve as a member of the INC Board of Directors (the “Board”), whether in the role of
Chairman or otherwise, until the date of the 2019 annual stockholders’ meeting (unless earlier due to disqualification, disability, death, retirement, resignation or removal), at which time, you will resign from the Board. 

 

	 	2.	Compensation. During the Transition Period, you will continue to receive a salary at your current level and your 2017 annual cash performance bonus will be paid in the ordinary course and at such time that
bonuses are normally paid. You agree that you will not be eligible to receive a 2018 annual cash performance bonus or a 2018 long-term incentive award. 

  

	 	3.	inVentiv Options. The 90-day post-termination exercise period for your outstanding converted inVentiv stock options will run from the date you cease to be a member of the
INC Board of Directors. 

  
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 We look forward to your acceptance of this letter agreement, which you can indicate by promptly
signing, dating and returning a copy of this letter agreement to me. 
 Very truly yours, 

 

									
					
	INC:	 	/s/ Christopher L. Gaenzle	 		 		 	
		 	 Christopher L. Gaenzle
 Chief Administrative
Officer and
 General Counsel
	 		 		 	
					
		 	Accepted and Agreed:	 		 		 	
					
		 	/s/ Michael A. Bell	 		 		 	December 5, 2017
		 	Michael A. Bell	 		 		 	Date

  
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