Document:

Form of Officers' Certificate of the Company

 EXHIBIT 4.1 

CORNING INCORPORATED 

4.250% Notes due 2020 

5.750% Notes due 2040 

Officers’ Certificate 

Pursuant to the Indenture, dated as of November 8, 2000 (the “Indenture”), as supplemented, between Corning Incorporated
(the “Company”) and The Bank of New York Mellon Trust Company, N.A. (successor to JPMorgan Chase Bank, N.A., formerly The Chase Manhattan Bank), as Trustee (the “Trustee”), and resolutions duly adopted by the Board of Directors
of the Company at a meeting of the Board of Directors duly called and held on July 21, 2010, at which a quorum was present in person or by teleconference and acting throughout (the “Resolutions”), this Officers’ Certificate is
being delivered to the Trustee to establish the terms of two series of Securities in accordance with Section 301 of the Indenture and to establish the form of the Securities of such series in accordance with Section 201 of the Indenture.

 Capitalized terms used herein and not otherwise defined herein shall have the meanings assigned to them in the Indenture.

 A. Establishment of Series pursuant to Section 301 of Indenture. 

There is hereby established pursuant to Section 301 of the Indenture two series of Securities which shall have the following terms:

 (1) One series of Securities shall bear the title “4.250% Notes due 2020” (the “2020 Notes”) and the
second series shall bear the title “5.750% Notes due 2040” (the “2040 Notes” and, together with the 2020 Notes, the “Notes”). 

(2) The aggregate principal amount of Notes to be issued pursuant to this Officers’ Certificate shall be limited to $300,000,000 for
the 2020 Notes and $400,000,000 for the 2040 Notes (except for Notes authenticated and delivered upon registration of, transfer of, or in exchange for, or in lieu of, other Notes of each series pursuant to Section 304, 305, 306, 906 or 1107 of
the Indenture and except for any Notes which, pursuant to Section 303 of the Indenture, are deemed never to have been authenticated and delivered thereunder). 

(3) Interest will be payable to the Person in whose name a Note (or any Predecessor Security) is registered at the close of business on
the Regular Record 

 
Date (as defined below) next preceding each Interest Payment Date (as defined below); provided, however, that interest payable on the respective Maturity Date of the Notes shall be payable to the
Person to whom principal shall be payable. 
 (4) The date on which the principal of the Notes is due and payable shall be
August 15, 2020 for the 2020 Notes and August 15, 2040 for the 2040 Notes. 
 (5) The 2020 Notes shall bear interest
at the rate of 4.250% per annum (based upon a 360-day year consisting of twelve 30-day months), and the 2040 Notes shall bear interest at the rate of 5.750% per annum (based upon a 360-day year consisting of twelve 30-day months). The
Notes shall bear interest from and including August 10, 2010, or from and including the most recent Interest Payment Date to which interest has been paid or duly provided for, as the case may be, payable semiannually on February 15 and
August 15 in each year, commencing on February 15, 2011, until the principal thereof is paid or made available for payment. Each such February 15 or August 15 shall be an “Interest Payment Date” for the Notes, and each
February 1 or August 1 (whether or not a Business Day), as the case may be, next preceding an Interest Payment Date shall be the “Regular Record Date” for the interest payable on such Interest Payment Date. 

(6) Principal of and interest on the Notes will be payable, and, except as provided in Section 305 of the Indenture with respect to
any Global Security (as defined below), the transfer of the Notes will be registrable and Notes will be exchangeable for Notes bearing identical terms and provisions at the corporate trust office of The Bank of New York Mellon Trust Company, N.A.
(the “Paying Agent”), in the Borough of Manhattan, The City of New York. 
 (7) Each series of Notes shall be
redeemable as follows: 
 Each series of Notes will be redeemable in whole at any time or in part from time to time, at the
option of the Company, at a redemption price equal to the greater of (i) 100% of the principal amount of the Notes to be redeemed; or (ii) the sum of the present values of the remaining scheduled payments of principal and interest on the
Notes to be redeemed (exclusive of interest accrued to the date of redemption) discounted to the date of redemption on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the then current Treasury Rate plus 25 basis
points for the 2020 Notes or the then current Treasury Rate plus 30 basis points for the 2040 Notes. 
 The Company will pay
accrued and unpaid interest on the principal amount of each series of Notes being redeemed to the date of redemption. 
 In
connection with such optional redemption, the following defined terms apply: 
 “Comparable Treasury Issue” means the
United States Treasury security selected by an Independent Investment Banker as having a maturity comparable to the 

 

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remaining term of the Notes to be redeemed that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities
of comparable maturity to the remaining term of the Notes. 
 “Comparable Treasury Price” means, with respect to any
Redemption Date, (1) the average of the Reference Treasury Dealer Quotations for such Redemption Date, after excluding the highest and lowest Reference Treasury Dealer Quotations, or (2) if the Trustee obtains fewer than four such
Reference Treasury Dealer Quotations, the average of all such quotations. 
 “Independent Investment Banker” means one
of the Reference Treasury Dealers that the Company appoints to act as the Independent Investment Banker from time to time. 

“Redemption Date” means the date fixed for redemption of the Notes by or pursuant to the Indenture. 

“Reference Treasury Dealer” means each of Deutsche Bank Securities Inc. and J.P. Morgan Securities Inc. and their respective
successors, and three other firms that are primary U.S. Government securities dealers (each a “Primary Treasury Dealer”) which the Company will specify from time to time; provided, however, that if any of them ceases to be a Primary
Treasury Dealer, the Company will substitute another Primary Treasury Dealer. 
 “Reference Treasury Dealer
Quotations” means, with respect to each Reference Treasury Dealer and any Redemption Date, the average, as determined by the Trustee, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its
principal amount) quoted in writing to the Trustee by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third Business Day preceding such Redemption Date. 

“Treasury Rate” means, with respect to any Redemption Date, the rate per year equal to the semiannual equivalent yield to
maturity of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such Redemption Date. The Treasury Rate shall be
calculated on the third Business Day preceding the Redemption Date. 
 If the Company decides to redeem less than all of the
outstanding Notes of a series, the Trustee will select the Notes of such series to be redeemed: 
  

	 	•	 	 by lot, 

  

	 	•	 	 pro rata, or 

  

	 	•	 	 by any other method the Trustee considers fair and appropriate. 

 

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 Notice of redemption will be mailed at least 30 but not more than 60 days before the
Redemption Date to each Holder of record of the Notes to be redeemed at its registered address. The notice of redemption for the Notes of a series will state, among other things, the amount of Notes of such series to be redeemed, the Redemption
Date, the manner in which the redemption price will be calculated and the place or places that payment will be made upon presentation and surrender of Notes of such series to be redeemed. Unless the Company defaults in the payment of the redemption
price, interest will cease to accrue on any Notes of such series that have been called for redemption at the Redemption Date. 

Repurchase upon a Change of Control Triggering Event 

If a Change of Control Triggering Event (as defined below) occurs, unless the Company has exercised its right to redeem the Notes as
described above, it will be required to make an offer to each Holder to repurchase all or, at the Holder’s option, any part (equal to $2,000 or any multiple of $1,000 in excess thereof), of each Holder’s Notes pursuant to the offer
described below (the “Change of Control Offer”) on the terms set forth in the Notes. In the Change of Control Offer, the Company will be required to offer to repurchase each Holder’s Notes in cash at a price equal to 101% of the
aggregate principal amount of Notes repurchased, plus any accrued and unpaid interest on the Notes repurchased to, but not including, the date of repurchase (the “Change of Control Payment”). 

Within 30 days following any Change of Control Triggering Event, or at the Company’s option, prior to any Change of Control (as
defined below), but after the public announcement of a pending Change of Control, the Company will be required to send to each Holder of Notes a notice describing the transaction that constitutes or may constitute the Change of Control Triggering
Event and offering to repurchase such Notes on the date specified in the notice, which date will be no earlier than 30 days and no later than 60 days from the date such notice is mailed (a “Change of Control Payment Date”). The
notice, if mailed prior to the date of consummation of the Change of Control, will state that the Change of Control Offer is conditioned on the Change of Control Triggering Event occurring on or prior to the Change of Control Payment Date.

 On the Change of Control Payment Date, the Company will be required, to the extent lawful, to: 

 

	 	•	 	 accept for payment all Notes or portions of Notes properly tendered pursuant to the Change of Control Offer; 

 

	 	•	 	 deposit with the Paying Agent an amount equal to the Change of Control Payment in respect of all Notes or portions of Notes properly tendered; and

  

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	 	•	 	 deliver or cause to be delivered to the Trustee the Notes properly accepted together with an officer’s certificate stating the aggregate principal
amount of Notes or portions of Notes being purchased by the Company. 

 The Paying Agent will be required to
promptly mail, to each Holder who properly tendered Notes, the Change of Control Payment for such Notes, and the Trustee will be required to promptly authenticate and mail (or cause to be transferred by book entry) to each such Holder a new note
equal in principal amount to any unpurchased portion of the Notes surrendered, if any; provided that each new note will be in a principal amount of $2,000 or a multiple of $1,000 in excess thereof. 

The Company will not be required to make a Change of Control Offer upon a Change of Control Triggering Event if a third party makes an
offer to purchase the Notes in the manner, at the times and otherwise in compliance with the requirements for an offer to purchase made by the Company and such third party purchases all Notes properly tendered and not withdrawn under its offer. In
the event that such third party terminates or defaults its offer, the Company will be required to make a Change of Control Offer treating the date of such termination or default as though it were the date of the Change of Control Triggering Event.

 The Company will not repurchase any Notes if there has occurred and is continuing on the Change of Control Payment Date an
event of default under the Indenture, other than a default in the payment of the Change of Control Payment upon a Change of Control Triggering Event. 

To the extent that the Company is required to offer to repurchase the Notes upon the occurrence of a Change of Control Triggering Event,
the Company may not have sufficient funds to repurchase the Notes in cash at such time. In addition, the Company’s ability to repurchase the Notes for cash may be limited by law or the terms of other agreements relating to the Company’s
indebtedness outstanding at the time. The failure to make such repurchase would result in a default under the Notes. 
 The
Company will comply with the requirements of Rule 14e-1 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and any other securities laws and regulations thereunder to the extent those laws and regulations are
applicable in connection with the repurchase of the Notes as a result of a Change of Control Triggering Event. To the extent that the provision of any such securities laws or regulations conflicts with the Change of Control Offer provisions of the
Notes, the Company will comply with those securities laws and regulations and will not be deemed to have breached its obligations under the Change of Control Offer provisions of the Notes by virtue of not complying with the Change of Control Offer
provisions as a result of any such conflict. 
  

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 The definition of Change of Control includes a phrase relating to the direct or indirect
sale, lease, transfer, conveyance or other disposition of “all or substantially all” of the Company’s properties or assets and those of its subsidiaries taken as a whole. Although there is a limited body of case law interpreting the
phrase “substantially all”, there is no precise established definition of the phrase under applicable law. Accordingly, the ability of a holder of Notes to require the Company to repurchase its Notes as a result of a sale, lease, transfer,
conveyance or other disposition of less than all of its assets and those of its subsidiaries, taken as a whole, to another person or group may be uncertain. In such case, holders of the Notes may not be able to resolve this uncertainty without
resorting to legal action. 
 The provisions in the Indenture and the Notes relating to Change of Control transactions will not
necessarily afford a Holder protection in the event of a highly leveraged transaction that may adversely affect such Holder, including a reorganization, restructuring, merger or other similar transaction involving the Company. These transactions may
not involve a change in voting power or beneficial ownership or, even if they do, may not involve a change of the magnitude or on the terms required under the definition of Change of Control Triggering Event. 

For purposes of the repurchase provisions of the Notes, the following terms will be applicable: 

“Change of Control” means the occurrence of any one of the following: (1) the direct or indirect sale,
lease, transfer, conveyance or other disposition (other than by way of merger, amalgamation, arrangement or consolidation), in one or a series of related transactions, of all or substantially all of the Company’s properties or assets and those
of its subsidiaries, taken as a whole, to one or more persons, other than to the Company or one of its subsidiaries; (2) the first day on which a majority of the members of the Company’s board of directors is not composed of Continuing
Directors (as defined below); (3) the consummation of any transaction including, without limitation, any merger, amalgamation, arrangement or consolidation the result of which is that any person becomes the beneficial owner, directly or
indirectly, of more than 50% of the Company’s Voting Stock, measured by voting power rather than number of shares; (4) the Company consolidates with, or merges with or into, any person, or any person consolidates with, or merges with or
into, the Company, in any such event pursuant to a transaction in which any of the outstanding Voting Stock of the Company or of such other person is converted into or exchanged for cash, securities or other property, other than any such transaction
where the shares of the Company’s Voting Stock outstanding immediately prior to such transaction constitute, or are converted into or exchanged for, a majority of the Voting Stock of the surviving person or any direct or indirect parent company
of the surviving person immediately after giving effect to such transaction; or (5) the adoption of a plan relating to the Company’s liquidation or dissolution (other than its liquidation into a newly formed holding company).
Notwithstanding the foregoing, a transaction described in clause (3) above will not be deemed to involve a Change of Control if (1) the Company becomes a direct or indirect wholly-owned subsidiary of a

  

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holding company (which shall include a direct or indirect parent company of such holding company) and (2)(A) the direct or indirect Holders of the Voting Stock of such holding company
immediately following that transaction are substantially the same as, and hold in substantially the same proportions as, the Holders of the Company’s Voting Stock immediately prior to that transaction or (B) immediately following that
transaction no person, other than a holding company satisfying the requirements of this sentence, is the beneficial owner, directly or indirectly, of more than 50% of the then outstanding Voting Stock, measured by voting power, of such holding
company or its parent company. Following any such transaction, references in this definition to the Company shall be deemed to refer to such holding company. For the purposes of this definition, “person” and “beneficial owner”
have the meanings used in Section 13(d) of the Exchange Act. 
 “Change of Control Triggering
Event” means the Notes cease to be rated Investment Grade by each of the Rating Agencies on any date during the 60-day period (the “Trigger Period”) following the earlier date of (1) the first public announcement of
the Change of Control or the Company’s intention to effect a Change of Control and (2) the consummation of such Change of Control, which Trigger Period will be extended following consummation of a Change of Control for so long as the
rating of the Notes is under publicly announced consideration for possible downgrade by any of the Rating Agencies. Unless at least one Rating Agency is providing a rating for the long-term unsecured debt of the Company at the commencement of any
Trigger Period, the Notes will be deemed to have ceased to be rated Investment Grade during that Trigger Period. Notwithstanding the foregoing, no Change of Control Triggering Event will be deemed to have occurred in connection with any particular
Change of Control unless and until such Change of Control has actually been consummated. 
 “Continuing
Directors” means, as of any date of determination, any member of the Company’s Board of Directors who (1) was a member of the Company’s board of directors on the date the Notes were issued; or (2) was nominated
for election, elected or appointed to the Company’s Board of Directors with the approval of a majority of the Continuing Directors who were members of the Company’s board of directors at the time of such nomination, election or appointment
(either by specific action of the board of directors or by approval by such directors of the Company’s proxy statement in which such member was named as a nominee for election as a director). 

“Fitch” means Fitch Inc., and its successors. 

“Investment Grade” means a rating equal to or higher than BBB- (or the equivalent) by Fitch, Baa3 (or the
equivalent) by Moody’s or BBB- (or the equivalent) by S&P, and the equivalent investment grade credit rating from any replacement Rating Agency or Rating Agencies selected by the Company. 

“Moody’s” means Moody’s Investors Service, Inc., a subsidiary of Moody’s Corporation, and its successors.

  

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 “Rating Agencies” means (a) each of Fitch, Moody’s and
S&P; and (b) if any of the Rating Agencies ceases to provide rating services to issuers or investors, a “nationally recognized statistical rating organization” within the meaning of Rule 15c3-1(c)(2)(vi)(F) under the Exchange
Act that is selected by the Company (as certified by the Company’s chief executive officer or chief financial officer) as a replacement for Fitch, Moody’s or S&P, or all of them, as the case may be. 

“S&P” means Standard & Poor’s Ratings Services, a division of The McGraw-Hill Companies, Inc.,
and its successors. 
 “Voting Stock” of any specified person as of any date means the capital stock of
such person that is at the time entitled to vote generally in the election of the board of directors of such person. 
 (8) The
Company shall not be obligated to redeem or purchase any Notes pursuant to any sinking fund or analogous provisions or at the option of any Holder. 

(9) Notes may be issued only in fully registered form and the authorized denomination of the Notes shall be $2,000 and any integral
multiple of $1,000 in excess thereof. 
 (10) The amount of payments of principal of and any premium or interest on the Notes
will not be determined with reference to an index or pursuant to a formula. 
 (11) The Notes shall be denominated, and payments
of principal of and interest on the Notes will be made, in United States dollars. 
 (12) The payments of principal of and
interest on the Notes shall not be payable at the election of the Company or Holder in one or more currencies, composite currencies or currency units. 

(13) The portion of the principal amount of the Notes which shall be payable upon declaration of acceleration of maturity thereof shall
not be other than the principal amount thereof. 
 (14) The principal amount payable at the Stated Maturity of each Note shall
be determined as of a date or dates prior to the Stated Maturity. 
 (15) The defeasance provisions set forth in Sections 1302
and 1303 of the Indenture shall apply to the Notes. 
 (16) Each series of Notes will be represented by a global security (a
“Global Security”) registered in the name of a nominee of the Depositary. The 
  

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Depository Trust Company will act as Depositary. Except as provided in Section 305 of the Indenture, Notes will not be issuable in definitive form and will not be exchangeable or
transferable. So long as the Depositary or its nominee is the registered holder of any Global Security, the Depositary or its nominee, as the case may be, will be considered the sole Holder of the Notes represented by such Global Security for all
purposes under the Indenture and the Notes. 
 (17) The Notes shall be subject to the events of default specified in
Section 501, paragraphs (1) through (7), of the Indenture. 
 (18) The Notes shall be subject to the covenants set
forth in Article Ten of the Indenture. 
 (19) The Notes shall not be convertible into shares of Common Stock of the Company or
exchangeable for any other securities. 
 (20) The 2020 Notes and the 2040 Notes shall have such other terms and provisions as
are provided in the forms attached hereto as Exhibits A and B, respectively. 
 B. Establishment of Note Form Pursuant to
Section 201 of Indenture. 
 It is hereby established pursuant to Section 201 of the Indenture that the Global
Securities representing the 2020 Notes and the 2040 Notes shall be substantially in the forms attached hereto as Exhibits A and B, respectively. 

C. Other Matters. 

Attached as Exhibit C hereto are true and correct copies of the Resolutions; such Resolutions have not been further amended,
modified or rescinded and remain in full force and effect; and such Resolutions, together with this Officers’ Certificate, are the only resolutions, approval or other action adopted by the Company’s Board of Directors or any committee
thereof or by any Authorized Officers relating to the offering and sale of the Notes. 
 The undersigned Mark S. Rogus and
Denise A. Hauselt, respectively, being Authorized Officers as defined in the Resolutions, each certifies that he/she has approved the terms of the Notes as set forth in this Officers’ Certificate, all in accordance with the authority of such
officer pursuant to such Resolutions. 
  

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 IN WITNESS WHEREOF, the undersigned has executed this Certificate as of
the 10th day of August, 2010. 

 

			
	CORNING INCORPORATED
		
	By:	 	  

		 	Name: Mark S. Rogus
		 	Title: Senior Vice President and Treasurer
		
	By:	 	  

		 	Name: Denise A. Hauselt
		 	Title: Vice President and SecretaryForm of the 2020 Note

 EXHIBIT 4.2 

(FACE OF SECURITY) 
 THIS
SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE THEREOF. THIS SECURITY MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A SECURITY REGISTERED, AND NO
TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF, EXCEPT IN LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE. 

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK) TO THE
ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (THE
“DEPOSITARY”) AND ANY PAYMENT IS MADE TO CEDE & CO., OR SUCH OTHER NAME REQUESTED BY THE DEPOSITARY, ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 
 UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR THE INDIVIDUAL
SECURITIES REPRESENTED HEREBY, THIS GLOBAL SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR 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 SUCCESSOR DEPOSITARY. 

 4.250% Notes due 2020 

CORNING INCORPORATED 
  

			
	Issue Date: August 10, 2010	 	Maturity: August 15, 2020
		
	Principal Amount: $300,000,000	 	CUSIP No.: 219350 AU9
		
	Registered: R-1	 	ISIN No.: US219350AU97

Corning Incorporated, a corporation duly organized and existing under the laws of the State of New York (herein called the
“Company”, which term includes any successor Person under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede & Co., or registered assigns, the principal sum of Three Hundred Million Dollars
($300,000,000) on August 15, 2020, and to pay interest thereon from August 10, 2010 or from the most recent Interest Payment Date to which interest has been paid or duly provided for, semi-annually on February 15 and August 15 in
each year, commencing February 15, 2011, and at the Maturity thereof, at the rate of 4.250% per annum, until the principal hereof is paid or made available for payment. The interest so payable, and punctually paid or duly provided for, on
any Interest Payment Date will, as provided in such Indenture, be paid to the Person in whose name this Security is registered at the close of business on the Regular Record Date for such interest, which shall be February 1 or August 1
(whether or not a Business Day), as the case may be, next preceding such Interest Payment Date. Any such interest so payable, but not punctually paid or duly provided for, on any Interest Payment Date will forthwith cease to be payable to the Holder
on such Regular Record Date and may either be paid to the Person in 

 
whose name this Security (or one or more Predecessor Securities) is registered at the close of business on a Special Record Date for the payment of such Defaulted Interest to be fixed by the
Trustee, notice whereof shall be given to Holders of Securities of this series not less than 10 days prior to such Special Record Date, or be paid in any other lawful manner not inconsistent with the requirements of any securities exchange on which
this Security may be listed, and upon such notice as may be required by such exchange, all as more fully provided in said Indenture. 

Payment of the principal of (and premium, if any) and interest on this Security will be made at the office or agency of the Company
maintained for that purpose in New York, New York, in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts, against surrender of this Security in the case of any
payment due at the Maturity of the principal thereof (other than any payment of interest that first becomes payable on a day other than an Interest Payment Date); provided, however, that at the option of the Company, payment of
interest may be made by check mailed to the address of the Person entitled thereto as such address shall appear in the Security Register; and provided, further, that if this Security is a Global Security, payment may be made pursuant
to the Applicable Procedures of the Depositary as permitted in said Indenture. 
 Reference is hereby made to the further
provisions of this Security set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. 
  

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 Unless the certificate of authentication hereon has been executed by the Trustee referred to
on the reverse hereof by manual signature, this Security shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose. 

IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed under its corporate seal. 

Dated: August 10, 2010 
  

							
	[SEAL]	 		 	CORNING INCORPORATED
				
		 		 	By:	 	  

		 		 	Name:	 	Mark S. Rogus
		 		 	Title:	 	Senior Vice President and Treasurer

  

									
	Attest:	 	By:	  	  
	  		  	
		 	Name:	  	Denise Hauselt	  		  	
		 	Title:	  	Vice President and Secretary	  		  	

 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

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

 

			
	Dated: August 10, 2010	 	 THE BANK OF NEW YORK
 MELLON
TRUST COMPANY, N.A.,

		 	as Trustee
		
		 	  

		 	Authorized Signatory

 (REVERSE OF SECURITY) 

4.250% Notes due 2020 

This Security is one of a duly authorized issue of securities of the Company (herein called the “Securities”), issued and to be
issued in one or more series under an Indenture, dated as of November 8, 2000 (herein called the “Indenture”, which term shall have the meaning assigned to it in such instrument), as supplemented, between the Company and The Bank of
New York Mellon Trust Company, N.A. (successor to JPMorgan Chase Bank, N.A., formerly The Chase Manhattan Bank), as Trustee (herein called the “Trustee”, which term includes any successor trustee under the Indenture), and reference is
hereby made to the Indenture for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Securities and of the terms upon which the Securities are, and are to
be, authenticated and delivered. This Security is one of the series designated on the face hereof, limited initially in aggregate principal amount to $300,000,000. 

The Securities of this series are subject to redemption as follows: 

The Securities will be redeemable in whole at any time or in part from time to time, at the option of the Company, at a redemption price equal to the
greater of (i) 100% of the principal amount of the Securities to be redeemed; or (ii) the sum of the present values of the remaining scheduled payments of principal and interest on the Securities to be redeemed (exclusive of interest
accrued to the date of redemption) discounted to the date of redemption on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the then current Treasury Rate plus 25 basis points. 

 

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 The Company will pay accrued and unpaid interest on the principal amount being redeemed to
the date of redemption. 
 In connection with such optional redemption, the following defined terms apply: 

“Comparable Treasury Issue” means the United States Treasury security selected by an Independent Investment Banker as having a
maturity comparable to the remaining term of the Securities to be redeemed that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable
maturity to the remaining term of the Securities. 
 “Comparable Treasury Price” means, with respect to any Redemption
Date, (1) the average of the Reference Treasury Dealer Quotations for such Redemption Date, after excluding the highest and lowest Reference Treasury Dealer Quotations, or (2) if the Trustee obtains fewer than four such Reference Treasury
Dealer Quotations, the average of all such quotations. 
 “Independent Investment Banker” means one of the Reference
Treasury Dealers that the Company appoints to act as the Independent Investment Banker from time to time. 
 “Redemption
Date” means the date fixed for redemption of the Security by or pursuant to the Indenture. 
 “Reference Treasury
Dealer” means each of Deutsche Bank Securities Inc. and J.P. Morgan Securities Inc. and their respective successors, and three other firms that are primary U.S. Government securities dealers (each a “Primary Treasury Dealer”) which
the Company specifies from time to time; provided, however, that if any of them ceases to be a Primary Treasury Dealer, the Company will substitute another Primary Treasury Dealer. 

 

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

“Treasury Rate” means, with respect to any Redemption Date, the rate per year equal to the semiannual equivalent yield to
maturity of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such Redemption Date. The Treasury Rate shall be
calculated on the third Business Day preceding the Redemption Date. 
 If the Company decides to redeem less than all of the
Outstanding Securities, the Trustee will select the Securities to be redeemed: 
  

	 	•	 	 by lot, 

  

	 	•	 	 pro rata, or 

  

	 	•	 	 by any other method the Trustee considers fair and appropriate. 

Notice of redemption will be mailed at least 30 but not more than 60 days before the Redemption Date to each Holder of record of the
Securities to be redeemed at its registered address. The notice of redemption for the Securities will state, among other things, the amount of Securities to be redeemed, the Redemption Date, the manner in which the redemption price will be
calculated and the place or places that payment will be made upon presentation and 
  

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surrender of Securities to be redeemed. Unless the Company defaults in the payment of the redemption price, interest will cease to accrue on any Securities that have been called for redemption at
the Redemption Date. 
 In the event of redemption of this Security in part only, a new Security or Securities of this Series
and of like tenor for the unredeemed portion hereof will be issued in the name of the Holders hereof upon the cancellation hereof. 

Repurchase upon a Change of Control Triggering Event 

If a Change of Control Triggering Event (as defined below) occurs, unless the Company has exercised its right to redeem the Securities as
described above, it will be required to make an offer to each Holder to repurchase all or, at the Holder’s option, any part (equal to $2,000 or any multiple of $1,000 in excess thereof), of each Holder’s Securities pursuant to the offer
described below (the “Change of Control Offer”) on the terms set forth in the Securities. In the Change of Control Offer, the Company will be required to offer to repurchase each Holder’s Securities in cash at a price equal to 101% of
the aggregate principal amount of Securities repurchased, plus any accrued and unpaid interest on the Securities repurchased to, but not including, the date of repurchase (the “Change of Control Payment”). 

Within 30 days following any Change of Control Triggering Event, or at the Company’s option, prior to any Change of Control (as
defined below), but after the public announcement of a pending Change of Control, the Company will be required to send to each Holder of Securities, a notice describing the transaction that constitutes or may constitute the Change of Control
Triggering Event and offering to repurchase such Securities on the date specified in 
  

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the notice, which date will be no earlier than 30 days and no later than 60 days from the date such notice is mailed (a “Change of Control Payment Date”). The notice, if
mailed prior to the date of consummation of the Change of Control, will state that the Change of Control Offer is conditioned on the Change of Control Triggering Event occurring on or prior to the Change of Control Payment Date. 

On the Change of Control Payment Date, the Company will be required, to the extent lawful, to: 

 

	 	•	 	 accept for payment all Securities or portions of Securities properly tendered pursuant to the Change of Control Offer; 

 

	 	•	 	 deposit with the paying agent an amount equal to the Change of Control Payment in respect of all Securities or portions of Securities properly
tendered; and 

  

	 	•	 	 deliver or cause to be delivered to the Trustee the Securities properly accepted together with an officer’s certificate stating the aggregate
principal amount of Securities or portions of Securities being purchased by the Company. 

 The paying agent
will be required to promptly mail, to each Holder who properly tendered Securities, the Change of Control Payment for such Securities, and the Trustee will be required to promptly authenticate and mail (or cause to be transferred by book entry) to
each such Holder a new note equal in principal amount to any unpurchased portion of the Securities surrendered, if any; provided that each new note will be in a principal amount of $2,000 or a multiple of $1,000 in excess thereof. 

The Company will not be required to make a Change of Control Offer upon a Change of Control Triggering Event if a third party makes an
offer to purchase the Securities in the manner, at the times and otherwise in compliance with the requirements for an offer to purchase made by the Company and such third party purchases all Securities properly

  

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tendered and not withdrawn under its offer. In the event that such third party terminates or defaults its offer, the Company will be required to make a Change of Control Offer treating the date
of such termination or default as though it were the date of the Change of Control Triggering Event. 
 The Company will not
repurchase any Securities if there has occurred and is continuing on the Change of Control Payment Date an event of default under the Indenture, other than a default in the payment of the Change of Control Payment upon a Change of Control Triggering
Event. 
 For purposes of the repurchase provisions of the Securities, the following terms will be applicable:

 “Change of Control” means the occurrence of any one of the following: (1) the direct or indirect sale, lease,
transfer, conveyance or other disposition (other than by way of merger, amalgamation, arrangement or consolidation), in one or a series of related transactions, of all or substantially all of the Company’s properties or assets and those of its
subsidiaries, taken as a whole, to one or more persons, other than to the Company or one of its subsidiaries; (2) the first day on which a majority of the members of the Company’s board of directors is not composed of Continuing Directors
(as defined below); (3) the consummation of any transaction including, without limitation, any merger, amalgamation, arrangement or consolidation the result of which is that any person becomes the beneficial owner, directly or indirectly, of
more than 50% of the Company’s Voting Stock, measured by voting power rather than number of shares; (4) the Company consolidates with, or merges with or into, any 

 

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person, or any person consolidates with, or merges with or into, the Company, in any such event pursuant to a transaction in which any of the outstanding Voting Stock of the Company or of such
other person is converted into or exchanged for cash, securities or other property, other than any such transaction where the shares of the Company’s Voting Stock outstanding immediately prior to such transaction constitute, or are converted
into or exchanged for, a majority of the Voting Stock of the surviving person or any direct or indirect parent company of the surviving person immediately after giving effect to such transaction; or (5) the adoption of a plan relating to the
Company’s liquidation or dissolution (other than its liquidation into a newly formed holding company). Notwithstanding the foregoing, a transaction described in clause (3) above will not be deemed to involve a Change of Control if
(1) the Company becomes a direct or indirect wholly-owned subsidiary of a holding company (which shall include a direct or indirect parent company of such holding company) and (2)(A) the direct or indirect Holders of the Voting Stock of
such holding company immediately following that transaction are substantially the same as, and hold in substantially the same proportions as, the Holders of the Company’s Voting Stock immediately prior to that transaction or
(B) immediately following that transaction no person, other than a holding company satisfying the requirements of this sentence, is the beneficial owner, directly or indirectly, of more than 50% of the then outstanding Voting Stock, measured by
voting power, of such holding company or its parent company. Following any such transaction, references in this definition to the Company shall be deemed to refer to such holding company. For the purposes of this definition, “person” and
“beneficial owner” have the meanings used in Section 13(d) of the Exchange Act. 
  

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 “Change of Control Triggering Event” means the Securities cease to be rated
Investment Grade by each of the Rating Agencies on any date during the 60-day period (the “Trigger Period”) following the earlier date of (1) the first public announcement of the Change of Control or the Company’s intention to
effect a Change of Control and (2) the consummation of such Change of Control, which Trigger Period will be extended following consummation of a Change of Control for so long as the rating of the Securities is under publicly announced
consideration for possible downgrade by any of the Rating Agencies. Unless at least one Rating Agency is providing a rating for the long-term unsecured debt of the Company at the commencement of any Trigger Period, the Securities will be deemed to
have ceased to be rated Investment Grade during that Trigger Period. Notwithstanding the foregoing, no Change of Control Triggering Event will be deemed to have occurred in connection with any particular Change of Control unless and until such
Change of Control has actually been consummated. 
 “Continuing Directors” means, as of any date of determination, any
member of the Company’s board of directors who (1) was a member of the Company’s board of directors on the date the Securities were issued; or (2) was nominated for election, elected or appointed to the Company’s board of
directors with the approval of a majority of the Continuing Directors who were members of the Company’s board of directors at the time of such nomination, election or appointment (either by specific action of the board of directors or by
approval by such directors of the Company’s proxy statement in which such member was named as a nominee for election as a director). 

“Fitch” means Fitch Inc., and its successors. 
  

 - 8 - 

 “Investment Grade” means a rating equal to or higher than BBB- (or the equivalent)
by Fitch, Baa3 (or the equivalent) by Moody’s or BBB- (or the equivalent) by S&P, and the equivalent investment grade credit rating from any replacement Rating Agency or Rating Agencies selected by the Company. 

“Moody’s” means Moody’s Investors Service, Inc., a subsidiary of Moody’s Corporation, and its successors.

 “Rating Agencies” means (a) each of Fitch, Moody’s and S&P; and (b) if any of the Rating
Agencies ceases to provide rating services to issuers or investors, a “nationally recognized statistical rating organization” within the meaning of Rule 15c3-1(c)(2)(vi)(F) under the Exchange Act that is selected by the Company (as
certified by the Company’s chief executive officer or chief financial officer) as a replacement for Fitch, Moody’s or S&P, or all of them, as the case may be. 

“S&P” means Standard & Poor’s Ratings Services, a division of The McGraw-Hill Companies, Inc., and its
successors. 
 “Voting Stock” of any specified person as of any date means the capital stock of such person that is at
the time entitled to vote generally in the election of the board of directors of such person. 
 The Indenture contains
provisions for defeasance at any time of the entire indebtedness of this Security or certain restrictive covenants and Events of Default with respect to this Security, in each case upon compliance with certain conditions set forth in the Indenture.

  

 - 9 - 

 No sinking fund is provided for the Securities. 

If an Event of Default with respect to Securities of this series shall occur and be continuing, the principal of the Securities of this
series may be declared due and payable in the manner and with the effect provided in the Indenture. 
 The Indenture permits,
with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the Securities of each series to be affected under the Indenture at any time by the
Company and the Trustee with the consent of the Holders of a majority in principal amount of the Securities at the time Outstanding of all series to be affected (considered together as one class for this purpose). The Indenture also contains
provisions (i) permitting the Holders of a majority in principal amount of the Securities at the time Outstanding of all series to be affected under the Indenture (considered together as one class for this purpose), on behalf of the Holders of
all Securities of such series, to waive compliance by the Company with certain provisions of the Indenture and (ii) permitting the Holders of a majority in principal amount of the Securities at the time Outstanding of any series to be affected
under the Indenture (with each such series considered separately for this purpose), on behalf of the Holders of all Securities of such series, to waive certain past defaults under the Indenture and their consequences. Any such consent or waiver by
the Holder of this Security shall be conclusive and binding upon such Holder and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not
notation of such consent or waiver is made upon this Security. 
  

 - 10 - 

 As provided in and subject to the provisions of the Indenture, the Holder of this Security
shall not have the right to institute any proceeding with respect to the Indenture, or for the appointment of a receiver or trustee, or for any other remedy thereunder, unless such Holder shall have previously given the Trustee written notice of a
continuing Event of Default with respect to the Securities of this series, the Holders of not less than 25% in principal amount of the Securities of this series at the time Outstanding shall have made written request to the Trustee to institute
proceedings in respect of such Event of Default as Trustee and offered the Trustee indemnity reasonably satisfactory to it, and the Trustee shall not have received from the Holders of a majority in principal amount of Securities of this series at
the time Outstanding a direction inconsistent with such request, and shall have failed to institute any such proceeding, for 60 days after receipt of such notice, request and offer of indemnity. The foregoing shall not apply to any suit instituted
by the Holder of this Security for the enforcement of any payment of principal hereof or any premium or interest hereon on or after the respective due dates expressed herein. 

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

As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Security is registrable in the
Security Register, upon surrender of this Security for registration of transfer at the office or agency of the Company in any place where the principal of and any premium and interest on this Security are payable, duly endorsed by, or

  

 - 11 - 

 
accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by, the Holder hereof or his attorney duly authorized in writing, and
thereupon one or more new Securities of this series and of like tenor, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees. 

The Securities of this series are issuable only in registered form without coupons in denominations of $2,000 and integral multiples of
$1,000. As provided in the Indenture and subject to certain limitations therein set forth, Securities of this series are exchangeable for a like aggregate principal amount of Securities of this series and of like tenor of a different authorized
denomination, as requested by the Holder surrendering the same. 
 No service charge shall be made for any such registration of
transfer or exchange, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. 

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

 - 12 - 

 This Security is a Global Security and is subject to the provisions of the Indenture
relating to Global Securities, including the limitations in Section 305 thereof on transfers and exchanges of Global Securities. 

This Security and the Indenture shall be governed by and construed in accordance with the laws of the State of New York. 

All terms used in this Security that are defined in the Indenture and not defined herein shall have the meanings assigned to them in the
Indenture 
  

 - 13 -

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