Document:

EX-4.3

 Exhibit 4.3 

TRINITY ACQUISITION PLC (f/k/a TRINITY ACQUISITION LIMITED), 

as Issuer 
 WILLIS
TOWERS WATSON PUBLIC LIMITED COMPANY, 
 as Parent Guarantor 

WILLIS TOWERS WATSON SUB HOLDINGS UNLIMITED COMPANY 

WILLIS NETHERLANDS HOLDINGS B.V. 

WILLIS INVESTMENT UK HOLDINGS LIMITED 

TA I LIMITED 
 WTW
BERMUDA HOLDINGS LIMITED 
 WILLIS GROUP LIMITED and 

WILLIS NORTH AMERICA INC., 

as Existing Guarantors 

WILLIS TOWERS WATSON UK HOLDINGS LIMITED, 

as Assuming Guarantor 

and 
 WELLS FARGO BANK,
NATIONAL ASSOCIATION, 
 as Trustee 
  

 
 Fifth
Supplemental Indenture 
 Dated as of August 11, 2017 

to the Indenture 
 Dated as
of August 15, 2013 
 as amended and supplemented by the 

First Supplemental Indenture 

Dated as of August 15, 2013, 

Second Supplemental Indenture 

Dated as of March 9, 2016, 

Third Supplemental Indenture 

Dated as of March 22, 2016 

and 
 Fourth Supplemental
Indenture 
 Dated as of May 26, 2016 
  

 
 Providing for
the Assumption of Guaranteed Obligations 
 (Unlimited as to Aggregate Principal Amount) 

 FIFTH SUPPLEMENTAL INDENTURE 

FIFTH SUPPLEMENTAL INDENTURE (this “Fifth Supplemental Indenture”), dated as of August 11, 2017, among Trinity
Acquisition plc (f/k/a Trinity Acquisition Limited), a company organized and existing under the laws of England and Wales, as issuer (the “Issuer”), Willis Towers Watson Public Limited Company (f/k/a Willis Group Holdings
Public Limited Company), a company organized and existing under the laws of Ireland (the “Parent Guarantor”), the Guarantors listed on Schedule A (the “Existing Guarantors”), Willis Towers Watson UK
Holdings Limited, a company incorporated under the laws of England and Wales ( the “Assuming Guarantor”) and Wells Fargo Bank, National Association, a national banking association, as trustee (the
“Trustee”), to the Indenture, dated as of August 15, 2013, among the Issuer, the Parent Guarantor, the Existing Guarantors and the Trustee (the “Base Indenture”), as amended and supplemented by
the First Supplemental Indenture, dated as of August 15, 2013 (the “First Supplemental Indenture”), the Second Supplemental Indenture, dated as of March 9, 2016 (the “Second Supplemental
Indenture”), the Third Supplemental Indenture, dated as of March 22, 2016 (the “Third Supplemental Indenture”), the Fourth Supplemental Indenture, dated as of May 26, 2016 (the “Fourth
Supplemental Indenture” and together with the First, Second and Third Supplemental Indentures and the Base Indenture, the “Indenture”). 

RECITALS: 
 WHEREAS, the
Issuer, the Parent Guarantor, the Existing Guarantors and the Trustee have heretofore entered into the Indenture to provide for the issuance of the Issuer’s unsecured senior debentures, notes or other evidences of Indebtedness (the
“Securities”); 
 WHEREAS, Section 8.01 of the Indenture permits a Guarantor (this and other capitalized terms
used herein and not otherwise defined have the meanings given to them in the Base Indenture) to convey, transfer or lease its properties and assets substantially as an entirety to any Person, provided that, (a) except in the case of Willis
North America Inc., the successor Person shall be a Person organized and existing under the laws of, inter alia, England and Wales, and such Person shall expressly assume by supplemental indenture, all the obligations of such Guarantor under
the Indenture and the Securities and immediately after such transaction no Event of Default shall have happened or be continuing and (b) the Issuer has delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each
stating that such conveyance, transfer or lease and supplemental indenture comply with Article Eight of the Indenture and all the conditions precedent stated therein have been complied with; 

WHEREAS, Section 8.02 of the Indenture permits the predecessor corporation to be relieved of all obligations and covenants under the
Indenture and the Securities after the conveyance or transfer of the properties and assets of such Guarantor substantially as an entirety in accordance with Section 8.01 and after the successor Person succeeds to, is substituted for, and
becomes entitled to exercise every right and power of such Guarantor; 
 WHEREAS, Section 9.01(1) of the Indenture permits the Issuer,
the Guarantors and the Trustee to enter into a supplemental indenture to the Indenture without the consent of the Holders of the Securities to evidence the succession of another Person to a Guarantor and the assumption by such successor Person of
the covenants of the Guarantor in the Indenture and the Securities pursuant to Article Eight of the Indenture; 
 WHEREAS, the properties
and assets of WTW Bermuda Holdings Limited (the “Transferring Guarantor”) are being transferred substantially as an entirety to the Assuming Guarantor (the “Transfer”) and the Assuming Guarantor
desires to assume all of the Guaranteed Obligations of the Transferring Guarantor, including all obligations of a Guarantor under Article Fifteen of the Indenture; 

 WHEREAS, the Trustee has been directed by the Issuer to enter into this Fifth Supplemental
Indenture to evidence the foregoing assumptions; 
 WHEREAS, the Trustee has received an Opinion of Counsel and an Officers’
Certificate, pursuant to Sections 1.02, 8.01 and 9.03 of the Indenture, stating, as applicable, that (a) the execution of the Fifth Supplemental Indenture is authorized or permitted by the Indenture, (b) the transfer of the Transferring
Guarantor’s properties and assets substantially as an entirety to the Assuming Guarantor and the Fifth Supplemental Indenture comply with Article Eight of the Indenture and (c) all conditions precedent (including any covenants compliance
with which constitutes a condition precedent) provided for in the Indenture to such transaction and to the execution and delivery by the Trustee of the Fifth Supplemental Indenture have been complied with; and 

WHEREAS, all things necessary to make this Fifth Supplemental Indenture a valid agreement of the Issuer, the Parent Guarantor, the Assuming
Guarantor, the Existing Guarantors and the Trustee, in accordance with its terms, have been done. 
 NOW, THEREFORE, in consideration of the
above premises, each party covenants and agrees, for the benefit of the other parties and for the equal and ratable benefit of all of the holders of the Securities, as follows: 

ARTICLE ONE 
 ASSUMPTION
OF GUARANTOR OBLIGATIONS 
 Section 1.1    Assumption of Guarantor Obligations by
Assuming Guarantor. 
 Upon consummation of the Transfer, the Assuming Guarantor hereby assumes, subject to the terms thereof, the
Guaranteed Obligations of a Guarantor under the Indenture and the Securities. Upon consummation of the Transfer, the Transferring Guarantor is hereby relieved of all obligations and covenants under the Indenture and the Securities pursuant to
Section 8.02 of the Indenture. 
 Section 1.2    Guarantor Agencies. 

The Assuming Guarantor hereby confirm all agency appointments made by a Guarantor under the Indenture. 

ARTICLE TWO 

MISCELLANEOUS 

Section 2.1    Integral Part. 

This Fifth Supplemental Indenture constitutes an integral part of the Indenture. 

Section 2.2    Adoption, Ratification and Confirmation. 

The Indenture, as supplemented and amended by this Fifth Supplemental Indenture, is in all respects hereby adopted, ratified and confirmed,
and this Fifth Supplemental Indenture shall be deemed part of the Indenture in the manner and to the extent herein and therein provided. The provisions of this Fifth Supplemental Indenture shall, subject to the terms hereof, supersede the provisions
of the Indenture to the extent the Indenture is inconsistent herewith. 

Section 2.3    Counterparts. 

This Fifth Supplemental Indenture may be executed in any number of counterparts, each of which so executed shall be deemed to be an original,
but all such counterparts shall together constitute 

  
 2 

 
but one and the same instrument. The exchange of copies of this Fifth Supplemental Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and
delivery of this Fifth Supplemental Indenture as to the parties hereto and may be used in lieu of the original Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their
original signatures for all purposes. 
 Section 2.4    Governing Law. 

THIS FIFTH SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT GIVING
EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS LAW. EACH OF THE ISSUER, THE PARENT GUARANTOR, THE EXISTING GUARANTORS, THE ASSUMING GUARANTOR AND THE TRUSTEE IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO
TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS FIFTH SUPPLEMENTAL INDENTURE OR THE TRANSACTIONS CONTEMPLATED HEREBY. 

Section 2.5    Conflict with Trust Indenture Act. 

If and to the extent that any provision of the Indenture limits, qualifies or conflicts with a provision required under the terms of the Trust
Indenture Act, the Trust Indenture Act provision shall control. 
 Section 2.6    Effect of Heading and Table
of Contents. 
 The Article and Section headings herein are for convenience only and shall not affect the construction hereof. 

Section 2.7    Separability Clause. 

In case any provision in the Indenture or in the Securities shall be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions shall not in any way be affected or impaired thereby. 
 Section
2.8    Successors and Assigns. 
 All covenants and agreements in the Indenture by the parties hereto shall
bind their respective successors and assigns, whether so expressed or not. 
 Section 2.9    Benefit of
Indenture. 
 Nothing in this Fifth Supplemental Indenture or in the Securities, express or implied, shall give to any Person, other
than the parties hereto, any Security Registrar, any Paying Agent, and their successors hereunder, and the Holders of the Securities, any benefit or any legal or equitable right, remedy or claim hereunder or under the Indenture. 

Section 2.10    The Trustee. 

The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Fifth Supplemental
Indenture or for or in respect of the recitals contained herein, all of which are made solely by the Issuer, the Assuming Guarantor and the Existing Guarantors. 

  
 3 

 Section 2.11    FATCA. 

The Issuer hereby confirms to the Trustee that this Fifth Supplemental Indenture has not resulted in a material modification of the Notes for
Foreign Accounting Tax Compliance Act (“FATCA”) purposes within the meaning of United States Treasury regulation section 1.1471-2T(b)(2)(iv). The Issuer shall give the Trustee prompt
written notice of any such future material modification of the Notes deemed to occur for FATCA purposes. The Trustee shall assume that no such material modification for FATCA 

purposes has occurred regarding the Notes, unless the Trustee receives written notice of such modification from the Issuer. 

***** 
 [THE REMAINDER OF THIS
PAGE HAS BEEN INTENTIONALLY LEFT BLANK] 

  
 4 

 IN WITNESS WHEREOF, the parties hereto have caused this Fifth Supplemental Indenture to be duly
executed, all as of the day and year first written above. 
  

					
	ISSUER
	
	TRINITY ACQUISITION PLC
		
	By:	 	 /s/ Christof Nelischer 

		 	Name:	 	Christof Nelischer
		 	Title:	 	Authorised Representative
		
	By:	 	 /s/ Steven Alcock 

		 	Name:	 	Steven Alcock
		 	Title:	 	Director

  
 [Signature Page to the 5th
Supplemental Indenture to the 2013 Indenture (Trinity)] 

 
					
	PARENT GUARANTOR
	
	SIGNED AND DELIVERED FOR AND ON BEHALF OF AND AS THE DEED OF
WILLIS TOWERS WATSON PUBLIC LIMITED COMPANY BY ITS LAWFULLY APPOINTED ATTORNEY
		
	By:	 	/s/ Christof Nelischer
		 	Name:	 	Christof Nelischer
		 	Title:	 	Global Group Treasurer
	
	IN THE PRESENCE OF:-
	
	    /s/ J. Ammon Smartt
	
	(WITNESS’ SIGNATURE)
	
	    26 Century Blvd, Nashville, TN 37214
	
	(WITNESS’ ADDRESS)
	
	    Attorney
	
	(WITNESS’ OCCUPATION

  
 [Signature Page to the 5th
Supplemental Indenture to the 2013 Indenture (Trinity)] 

 
					
	EXISTING GUARANTORS
	
	SIGNED AND DELIVERED FOR AND ON BEHALF OF AND AS THE DEED OF
WILLIS TOWERS WATSON SUB HOLDINGS UNLIMITED COMPANY BY ITS LAWFULLY
APPOINTED ATTORNEY
		
	By:	 	/s/ Christof Nelischer
		 	Name:	 	Christof Nelischer
		 	Title:	 	Attorney
	
	IN THE PRESENCE OF:-
	
	    /s/ J. Ammon Smartt
	
	(WITNESS’ SIGNATURE)
	
	    26 Century Blvd, Nashville, TN 37214
	
	(WITNESS’ ADDRESS)
	
	    Attorney
	
	(WITNESS’ OCCUPATION

  
 [Signature Page to the 5th
Supplemental Indenture to the 2013 Indenture (Trinity)] 

 
					
	WILLIS NETHERLANDS HOLDINGS B.V.
		
	By:	 	/s/ Christof Nelischer
		 	Name:	 	Christof Nelischer
		 	Title:	 	Attorney
	
	WILLIS INVESTMENT UK HOLDINGS LIMITED
		
	By:	 	/s/ Christof Nelischer
		 	Name:	 	Christof Nelischer
		 	Title:	 	Authorised Representative
	
	TA I LIMITED
		
	By:	 	/s/ Christof Nelischer
		 	Name:	 	Christof Nelischer
		 	Title:	 	Authorised Representative
	
	WTW BERMUDA HOLDINGS LIMITED
		
	By:	 	/s/ Christof Nelischer
		 	Name:	 	Christof Nelischer
		 	Title:	 	Authorised Representative
	
	WILLIS GROUP LIMITED
		
	By:	 	/s/ Christof Nelischer
		 	Name:	 	Christof Nelischer
		 	Title:	 	Authorised Representative
	
	WILLIS NORTH AMERICA INC.
		
	By:	 	/s/ Christof Nelischer
		 	Name:	 	Christof Nelischer
		 	Title:	 	Authorized Officer

  
 [Signature Page to the 5th
Supplemental Indenture to the 2013 Indenture (Trinity)] 

 
					
	ASSUMING GUARANTOR
	
	WILLIS TOWERS WATSON UK HOLDINGS LIMITED.
		
	By:	 	/s/ Christof Nelischer
		 	Name:	 	Christof Nelischer
		 	Title:	 	Authorised Representative

  
 [Signature Page to the 5th
Supplemental Indenture to the 2013 Indenture (Trinity)] 

 
					
	TRUSTEE
	
	WELLS FARGO BANK, NATIONAL ASSOCIATION, AS TRUSTEE
		
	By:	 	/s/ Raymond Delli Colli
		 	Name:	 	Raymond Delli Colli
		 	Title:	 	Vice President

  
 [Signature Page to the 5th
Supplemental Indenture to the 2013 Indenture (Trinity)] 

 SCHEDULE A 

EXISTING GUARANTORS 
  

			
	 EXISTING GUARANTOR
	  	 JURISDICTION OF
ORGANIZATION

	 WILLIS TOWERS WATSON SUB HOLDINGS UNLIMITED COMPANY
	  	 IRELAND

	 WILLIS NETHERLANDS HOLDINGS B.V.
	  	 NETHERLANDS

	 WILLIS INVESTMENT UK HOLDINGS LIMITED
	  	 ENGLAND AND WALES

	 TA I LIMITED
	  	 ENGLAND AND WALES

	 WTW BERMUDA HOLDINGS LIMITED
	  	 BERMUDA

	 WILLIS GROUP LIMITED
	  	 ENGLAND AND WALES

	 WILLIS NORTH AMERICA INC.
	  	 DELAWAREEX-4.4

 Exhibit 4.4 

WILLIS NORTH AMERICA INC., 

as Issuer 
 WILLIS
TOWERS WATSON PUBLIC LIMITED COMPANY, 
 as Parent Guarantor 

WILLIS TOWERS WATSON SUB HOLDINGS UNLIMITED COMPANY 

WILLIS NETHERLANDS HOLDINGS B.V. 

WILLIS INVESTMENT UK HOLDINGS LIMITED 

TA I LIMITED 
 WTW
BERMUDA HOLDINGS LIMITED 
 TRINITY ACQUISITION PLC (f/k/a TRINITY ACQUISITION LIMITED) and 

WILLIS GROUP LIMITED, 

as Existing Guarantors 

WILLIS TOWERS WATSON UK HOLDINGS LIMITED, 

as Assuming Guarantor 

and 
 WELLS FARGO BANK,
NATIONAL ASSOCIATION, 
 as Trustee 
  

 
 Second
Supplemental Indenture 
 Dated as of August 11, 2017 

to the Indenture 
 Dated as
of May 16, 2017 
 as amended and supplemented by the 

First Supplemental Indenture 

Dated as of May 16, 2017 
  

 
 Providing for
the Assumption of Guaranteed Obligations 
 (Unlimited as to Aggregate Principal Amount) 

 SECOND SUPPLEMENTAL INDENTURE 

SECOND SUPPLEMENTAL INDENTURE (this “Second Supplemental Indenture”), dated as of August 11, 2017, among Willis
North America Inc., a Delaware corporation (the “Issuer”), Willis Towers Watson Public Limited Company (f/k/a Willis Group Holdings Public Limited Company), a company organized and existing under the laws of Ireland (the
“Parent Guarantor”), the Guarantors listed on Schedule A, attached hereto (the “Existing Guarantors”), Willis Towers Watson UK Holdings Limited, a company incorporated under the laws of England and
Wales (the “Assuming Guarantor”) and Wells Fargo Bank, National Association, a national banking association, as trustee (the “Trustee”), to the Indenture, dated as of May 16, 2017, among the
Issuer, the Parent Guarantor, the Existing Guarantors and the Trustee (the “Base Indenture”), as amended and supplemented by the First Supplemental Indenture, dated as of May 16, 2017 (the “First Supplemental
Indenture” and together with the Base Indenture, the “Indenture”). 
 RECITALS: 

WHEREAS, the Issuer, the Parent Guarantor, the Existing Guarantors and the Trustee have heretofore entered into the Indenture to provide for
the issuance of the Issuer’s unsecured senior debentures, notes or other evidences of Indebtedness (the “Securities”); 

WHEREAS, Section 8.01 of the Indenture permits a Guarantor (this and other capitalized terms used herein and not otherwise defined have
the meanings given to them in the Base Indenture) to convey, transfer or lease its properties and assets substantially as an entirety to any Person, provided that, (a) except in the case of the Issuer, the successor Person shall be a Person
organized and existing under the laws of, inter alia, England and Wales, and such Person shall expressly assume by supplemental indenture, all the obligations of such Guarantor under the Indenture and the Securities and immediately after such
transaction no Event of Default shall have happened or be continuing and (b) the Issuer has delivered to the Trustee an Officers’ Certificate and an Opinion of Counsel, each stating that such conveyance, transfer or lease and supplemental
indenture comply with Article Eight of the Indenture and all the conditions precedent stated therein have been complied with; 
 WHEREAS,
Section 8.02 of the Indenture permits the predecessor corporation to be relieved of all obligations and covenants under the Indenture and the Securities after the conveyance or transfer of the properties and assets of such Guarantor
substantially as an entirety in accordance with Section 8.01 and after the successor Person succeeds to, is substituted for, and becomes entitled to exercise every right and power of such Guarantor; 

WHEREAS, Section 9.01(1) of the Indenture permits the Issuer, the Guarantors and the Trustee to enter into a supplemental indenture to
the Indenture without the consent of the Holders of the Securities to evidence the succession of another Person to a Guarantor and the assumption by such successor Person of the covenants of the Guarantor in the Indenture and the Securities pursuant
to Article Eight of the Indenture; 
 WHEREAS, the properties and assets of WTW Bermuda Holdings Limited (the “Transferring
Guarantor”) are being transferred substantially as an entirety to the Assuming Guarantor (the “Transfer”) and the Assuming Guarantor desires to assume all of the Guaranteed Obligations of the Transferring
Guarantor, including all obligations of a Guarantor under Article Fifteen of the Indenture; 

 WHEREAS, the Trustee has been directed by the Issuer to enter into this Second Supplemental
Indenture to evidence the foregoing assumptions; 
 WHEREAS, the Trustee has received an Opinion of Counsel and an Officers’
Certificate, pursuant to Sections 1.02, 8.01 and 9.03 of the Indenture, stating, as applicable, that (a) the execution of the Second Supplemental Indenture is authorized or permitted by the Indenture, (b) the transfer of the Transferring
Guarantor’s properties and assets substantially as an entirety to the Assuming Guarantor and the Second Supplemental Indenture comply with Article Eight of the Indenture and (c) all conditions precedent (including any covenants compliance
with which constitutes a condition precedent) provided for in the Indenture to such transaction and to the execution and delivery by the Trustee of the Second Supplemental Indenture have been complied with; and 

WHEREAS, all things necessary to make this Second Supplemental Indenture a valid agreement of the Issuer, the Parent Guarantor, the Assuming
Guarantor, the Existing Guarantors and the Trustee, in accordance with its terms, have been done. 
 NOW, THEREFORE, in consideration of the
above premises, each party covenants and agrees, for the benefit of the other parties and for the equal and ratable benefit of all of the holders of the Securities, as follows: 

ARTICLE ONE 
 ASSUMPTION
OF GUARANTOR OBLIGATIONS 
 Section 1.1 Assumption of Guarantor Obligations by Assuming Guarantor. 

Upon consummation of the Transfer, the Assuming Guarantor hereby assumes, subject to the terms thereof, the Guaranteed Obligations of a
Guarantor under the Indenture and the Securities. Upon consummation of the Transfer, the Transferring Guarantor is hereby relieved of all obligations and covenants under the Indenture and the Securities pursuant to Section 8.02 of the
Indenture. 
 Section 1.2 Guarantor Agencies. 

The Assuming Guarantor hereby confirms all agency appointments made by a Guarantor under the Indenture. 

ARTICLE TWO 

MISCELLANEOUS 

Section 2.1 Integral Part. 

This Second Supplemental Indenture constitutes an integral part of the Indenture. 

Section 2.2 Adoption, Ratification and Confirmation. 

The Indenture, as supplemented and amended by this Second Supplemental Indenture, is in all respects hereby adopted, ratified and confirmed,
and this Second Supplemental Indenture shall be deemed part of the Indenture in the manner and to the extent herein and therein provided. The provisions of this Second Supplemental Indenture shall, subject to the terms hereof, supersede the
provisions of the Indenture to the extent the Indenture is inconsistent herewith. 
 Section 2.3 Counterparts. 

This Second Supplemental Indenture may be executed in any number of counterparts, each of which so executed shall be deemed to be an original,
but all such counterparts shall together constitute but one and the same instrument. The exchange of copies of this Second Supplemental Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and

  
 2 

 
delivery of this Second Supplemental Indenture as to the parties hereto and may be used in lieu of the original Second Supplemental Indenture for all purposes. Signatures of the parties hereto
transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes. 
 Section 2.4 Governing
Law. 
 THIS SECOND SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK,
WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS LAW. EACH OF THE ISSUER, THE PARENT GUARANTOR, THE EXISTING GUARANTORS, THE ASSUMING GUARANTOR AND THE TRUSTEE IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND
ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS SECOND SUPPLEMENTAL INDENTURE OR THE TRANSACTIONS CONTEMPLATED HEREBY. 

Section 2.5 Conflict with Trust Indenture Act. 

If and to the extent that any provision of the Indenture limits, qualifies or conflicts with a provision required under the terms of the Trust
Indenture Act, the Trust Indenture Act provision shall control. 
 Section 2.6 Effect of Heading and Table of Contents.

 The Article and Section headings herein are for convenience only and shall not affect the construction hereof. 

Section 2.7 Separability Clause. 

In case any provision in the Indenture or in the Securities shall be invalid, illegal or unenforceable, the validity, legality and
enforceability of the remaining provisions shall not in any way be affected or impaired thereby. 
 Section 2.8 Successors
and Assigns. 
 All covenants and agreements in the Indenture by the parties hereto shall bind their respective successors and assigns,
whether so expressed or not. 
 Section 2.9 Benefit of Indenture. 

Nothing in this Second Supplemental Indenture or in the Securities, express or implied, shall give to any Person, other than the parties
hereto, any Security Registrar, any Paying Agent, and their successors hereunder, and the Holders of the Securities, any benefit or any legal or equitable right, remedy or claim hereunder or under the Indenture. 

Section 2.10 The Trustee. 

The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Second Supplemental
Indenture or for or in respect of the recitals contained herein, all of which are made solely by the Issuer, the Assuming Guarantor and the Existing Guarantors. 

***** 
 [THE REMAINDER OF THIS
PAGE HAS BEEN INTENTIONALLY LEFT BLANK] 

  
 3 

 IN WITNESS WHEREOF, the parties hereto have caused this Second Supplemental Indenture to be duly
executed, all as of the day and year first written above. 
  

			
	 ISSUER
  

WILLIS NORTH AMERICA INC.

		
	By:	 	/s/ Christof Nelischer
		 	Name: Christof Nelischer
		 	Title:   Authorized Officer

 [Signature Page to the 2nd Supplemental Indenture to the 2017 Indenture] 

 
			
	 PARENT GUARANTOR

 
 SIGNED AND DELIVERED FOR AND ON
BEHALF OF AND AS THE DEED OF WILLIS TOWERS WATSON PUBLIC LIMITED COMPANY

BY ITS LAWFULLY APPOINTED ATTORNEY

		
	By:	 	/s/ Christof Nelischer
		 	 Name: Christof Nelischer
 Title: Global
Group Treasurer

  

	
	IN THE PRESENCE OF:-
	
	/s/ J. Ammon Smartt
	(WITNESS’ SIGNATURE)
	
	26 Century Blvd, Nashville, TN 37214
	
	(WITNESS’ ADDRESS)
	
	Attorney
	(WITNESS’ OCCUPATION

 [Signature Page to the 2nd Supplemental Indenture to the 2017 Indenture] 

 
			
	 EXISTING GUARANTORS

 
 SIGNED AND DELIVERED FOR AND ON
BEHALF OF AND AS THE DEED OF WILLIS TOWERS WATSON SUB HOLDINGS
UNLIMITED COMPANY
 BY ITS LAWFULLY APPOINTED
ATTORNEY

		
	By:	 	/s/ Christof Nelischer
		 	 Name: Christof Nelischer
 Title:
Attorney

  

	
	IN THE PRESENCE OF:-
	
	/s/ J. Ammon Smartt
	(WITNESS’ SIGNATURE)
	
	26 Century Blvd, Nashville, TN 37214
	
	(WITNESS’ ADDRESS)
	
	Attorney
	(WITNESS’ OCCUPATION

 [Signature Page to the 2nd Supplemental Indenture to the 2017 Indenture] 

 
			
	WILLIS NETHERLANDS HOLDINGS B.V.
		
	By:	 	/s/ Christof Nelischer
		 	 Name: Christof Nelischer
 Title:
  Attorney

  

			
	WILLIS INVESTMENT UK HOLDINGS LIMITED
		
	By:	 	/s/ Christof Nelischer
		 	 Name: Christof Nelischer
 Title:
  Authorised Representative

  

			
	TA I LIMITED
		
	By:	 	/s/ Christof Nelischer
		 	 Name: Christof Nelischer
 Title:
  Authorised Representative

  

			
	WTW BERMUDA HOLDINGS LIMITED
		
	By:	 	/s/ Christof Nelischer
		 	 Name: Christof Nelischer
 Title:
  Authorised Representative

  

			
	TRINITY ACQUISITION PLC
		
	By:	 	/s/ Christof Nelischer
		 	 Name: Christof Nelischer
 Title:
  Authorised Representative

 [Signature Page to the 2nd Supplemental Indenture to the 2017 Indenture] 

 
			
	WILLIS GROUP LIMITED
		
	By:	 	/s/ Christof Nelischer
		 	 Name: Christof Nelischer
 Title:
  Authorised Representative

 [Signature Page to the 2nd Supplemental Indenture to the 2017 Indenture] 

 
			
	 ASSUMING GUARANTOR

 
 WILLIS TOWERS WATSON UK
HOLDINGS LIMITED

		
	By:	 	/s/ Christof Nelischer
		 	 Name: Christof Nelischer
 Title:
  Authorised Representative

 [Signature Page to the 2nd Supplemental Indenture to the 2017 Indenture] 

 
			
	 TRUSTEE
  

WELLS FARGO BANK, NATIONAL ASSOCIATION, AS
TRUSTEE

		
	By:	 	/s/ Raymond Delli Colli
		 	 Name: Raymond Delli Colli
 Title:
  Vice President

 [Signature Page to the 2nd Supplemental Indenture to the 2017 Indenture] 

 SCHEDULE A 

EXISTING GUARANTORS 
  

			
	 EXISTING GUARANTOR
	  	 JURISDICTION OF

ORGANIZATION

		
	 WILLIS TOWERS WATSON SUB HOLDINGS UNLIMITED

COMPANY
	  	IRELAND
		
	 WILLIS NETHERLANDS HOLDINGS B.V.
	  	NETHERLANDS
		
	 WILLIS INVESTMENT UK HOLDINGS LIMITED
	  	ENGLAND AND WALES
		
	 TA I LIMITED
	  	ENGLAND AND WALES
		
	 WTW BERMUDA HOLDINGS LIMITED
	  	BERMUDA
		
	 TRINITY ACQUISITION PLC (f/k/a TRINITY ACQUISITION

LIMITED)
	  	ENGLAND AND WALES
		
	 WILLIS GROUP LIMITED
	  	ENGLAND AND WALES

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