Exhibit 10.1


 








 


Wells Fargo Bank, National Association


375 Park Avenue


New York, NY 10152


Attn: Structuring Services Group


Telephone: 212-214-6101

Facsimile: 212-214-5913


 


November 18, 2015


	To:	Aceto Corporation
	 	4 Tri Harbor Court
	 	Port Washington, NY 11050





	 	Attention:	Steven S. Rogers
	 	 	Senior VP & General Counsel
	 	Telephone No.:	(516) 478-9514


 


		Re:	Additional Call Option Transaction



 


The purpose of this
letter agreement (this “Confirmation”) is to confirm the terms and conditions of the call option transaction
entered into between Wells Fargo Bank, National Association (“Dealer”) and Aceto Corporation (“Counterparty”)
as of the Trade Date specified below (the “Transaction”). This letter agreement constitutes a “Confirmation”
as referred to in the ISDA Master Agreement specified below. This Confirmation shall replace any previous agreements and serve
as the final documentation for the Transaction.


 


The definitions and
provisions contained in the 2002 ISDA Equity Derivatives Definitions (the “Equity Definitions”), as published
by the International Swaps and Derivatives Association, Inc. (“ISDA”) are incorporated into this Confirmation.
In the event of any inconsistency between the Equity Definitions and this Confirmation, this Confirmation shall govern. Certain
defined terms used herein are based on terms that are defined in the Offering Memorandum dated November 10, 2015 (the “Offering
Memorandum”) relating to the Convertible Senior Notes due 2020 (as originally issued by Counterparty, the “Convertible
Notes” and each USD 1,000 principal amount of Convertible Notes, a “Convertible Note”) issued by Counterparty
in an aggregate initial principal amount of USD 125,000,000 (as increased by an aggregate principal amount of USD 18,750,000 pursuant
to the exercise by the Initial Purchasers (as defined herein) of their option to purchase additional Convertible Notes pursuant
to the Purchase Agreement (as defined herein)) pursuant to an Indenture dated November 16, 2015 between Counterparty and Citibank,
N.A., as trustee (the “Indenture”). In the event of any inconsistency between the terms defined in the Offering
Memorandum, the Indenture and this Confirmation, this Confirmation shall govern. The parties acknowledge that this Confirmation
is entered into on the date hereof with the understanding that (i) definitions set forth in the Indenture which are also defined
herein by reference to the Indenture and (ii) sections of the Indenture that are referred to herein will conform to the descriptions
thereof in the Offering Memorandum. If any such definitions in the Indenture or any such sections of the Indenture differ from
the descriptions thereof in the Offering Memorandum, the descriptions thereof in the Offering Memorandum will govern for purposes
of this Confirmation. The parties further acknowledge that the Indenture section numbers used herein are based on the Indenture
as executed. Subject to the foregoing, references to the Indenture herein are references to the Indenture as in effect on the date
of its execution, and if the Indenture is amended or supplemented following such date (other than any amendment or supplement (x)
pursuant to Section 10.01(h) of the Indenture that, as determined by the Calculation Agent acting in good faith and in a commercially
reasonable manner, conforms the Indenture to the description of Convertible Notes in the Offering Memorandum or (y) pursuant to
Section 14.07 of the Indenture, subject, in the case of this clause (y), to the second paragraph under “Method of Adjustment”
in Section 3), any such amendment or supplement will be disregarded for purposes of this Confirmation unless the parties agree
otherwise in writing.


 


Each party is hereby
advised, and each such party acknowledges, that the other party has engaged in, or refrained from engaging in, substantial financial
transactions and has taken other material actions in reliance upon the parties’ entry into the Transaction to which this
Confirmation relates on the terms and conditions set forth below.


 




    	 	 	 



     

    

 


1.           This
Confirmation evidences a complete and binding agreement between Dealer and Counterparty as to the terms of the Transaction to which
this Confirmation relates. This Confirmation shall supplement, form a part of, and be subject to an agreement in the form of the
2002 ISDA Master Agreement (the “Agreement”) as if Dealer and Counterparty had executed an agreement in such
form (but without any Schedule except for the election of the laws of the State of New York as the governing law (without reference
to choice of law doctrine)) on the Trade Date. In the event of any inconsistency between provisions of the Agreement and this Confirmation,
this Confirmation will prevail for the purpose of the Transaction to which this Confirmation relates. The parties hereby agree
that no transaction other than the Transaction to which this Confirmation relates shall be governed by the Agreement.


 


2.           The
terms of the particular Transaction to which this Confirmation relates are as follows:


 


General Terms.


 


	 	Trade Date:	November 18, 2015
	 	 	 
	 	Effective Date:	Trade Date
	 	 	 
	 	Option Style:	“Modified American”, as described under “Procedures for Exercise” below
	 	 	 
	 	Option Type:	Call
	 	 	 
	 	Buyer:	Counterparty
	 	 	 
	 	Seller:	Dealer
	 	 	 
	 	Shares:	The common stock of Counterparty, par value USD 0.01 per share  (Exchange symbol “ACET”).
	 	 	 
	 	Number of Options:	18,750.  For the avoidance of doubt, the Number of Options shall be reduced by any Options exercised by Counterparty.  In no event will the Number of Options be less than zero.
	 	 	 
	 	Applicable Percentage:	40%
	 	 	 
	 	Option Entitlement:	A number equal to the product of the Applicable Percentage and 30.1069.
	 	 	 
	 	Strike Price:	USD 33.2150
	 	 	 
	 	Premium:	USD 1,417,800
	 	 	 
	 	Premium Payment Date:	November 23, 2015
	 	 	 
	 	Exchange:	The NASDAQ Global Select Market
	 	 	 
	 	Related Exchange(s):	All Exchanges
	 	 	 
	 	Excluded Provisions:	Section 14.03 and Section 14.04(h) of the Indenture.


 


Procedures for Exercise.


 


	 	Conversion Date:	With respect to any conversion of a Convertible Note, the date on which the Holder (as such term is defined in the Indenture) of such Convertible Note satisfies all of the requirements for conversion thereof as set forth in Section 14.02(b) of the Indenture.
	 	 	 
	 	Free Convertibility Date:	May 1, 2020


 




    	 	-2-	 



     

    

 


	 	Expiration Time:	The Valuation Time
	 	 	 
	 	Expiration Date:	November 1, 2020, subject to earlier exercise.
	 	 	 
	 	Multiple Exercise:	Applicable, as described under “Automatic Exercise” below.
	 	 	 
	 	Automatic Exercise:	Notwithstanding Section 3.4 of the Equity Definitions, on each Conversion Date in respect of which a Notice of Conversion that is effective as to Counterparty has been delivered by the relevant converting Holder, a number of Options equal to (i) the number of Convertible Notes in denominations of USD 1,000 as to which such Conversion Date has occurred minus (ii) the number of Options that are or are deemed to be automatically exercised on such Conversion Date under the Base Call Option Transaction Confirmation letter agreement dated November 10, 2015 between Dealer and Counterparty, shall be deemed to be automatically exercised; provided that such Options shall be exercised or deemed exercised only if Counterparty has provided a Notice of Exercise to Dealer in accordance with “Notice of Exercise” below.
	 	 	 
	 	 	Notwithstanding the foregoing, in no event shall the number of Options that are exercised or deemed exercised hereunder exceed the Number of Options.
	 	 	 
	 	 	Notwithstanding anything to the contrary in the Equity Definitions or under “Automatic Exercise” above, in order to exercise any Options, Counterparty must notify Dealer in writing before 5:00 p.m. (New York City time) on the Scheduled Valid Day immediately preceding the scheduled first day of the Settlement Averaging Period for the Options being exercised of (i) the number of such Options, (ii) the scheduled first day of the Settlement Averaging Period and the scheduled Settlement Date, (iii) the Relevant Settlement Method for such Options, and (iv) if the settlement method for the related Convertible Notes is not Settlement in Shares or Settlement in Cash (each as defined below), the fixed amount of cash per Convertible Note that Counterparty has elected to deliver to Holders (as such term is defined in the Indenture) of the related Convertible Notes (the “Specified Cash Amount”); provided that in respect of any Options relating to Convertible Notes with a Conversion Date occurring on or after the Free Convertibility Date, (A) such notice may be given on or prior to the second Scheduled Valid Day immediately preceding the Expiration Date and need only specify the information required in clause (i) above, and (B) if the Relevant Settlement Method for such Options is (x) Net Share Settlement and the Specified Cash Amount is not USD 1,000, (y) Cash Settlement or (z) Combination Settlement, Dealer shall have received a separate notice (the “Notice of Final Settlement Method”) in respect of all such Convertible Notes before 5:00 p.m. (New York City time) on the Free Convertibility Date specifying the information required in clauses (iii) and (iv) above.  Counterparty acknowledges its responsibilities under applicable securities laws, and in particular Section 9 and Section 10(b) of the Exchange Act (as defined below) and the rules and regulations thereunder, in respect of any election of a settlement method with respect to the Convertible Notes.


 




    	 	-3-	 



     

    

 


	 	Valuation Time:	At the close of trading of the regular trading session on the Exchange; provided that if the principal trading session is extended, the Calculation Agent shall determine the Valuation Time in its reasonable and good faith discretion.
	 	 	 
	 	Market Disruption Event:	Section 6.3(a) of the Equity Definitions is hereby replaced in its entirety by the following:
	 	 	 
	 	 	“‘Market Disruption Event’ means, in respect of a Share, (i) a failure by the primary United States national or regional securities exchange or market on which the Shares are listed or quoted to open for trading during its regular trading session or (ii) the occurrence or existence prior to 1:00 p.m. (New York City time) on any Scheduled Valid Day for the Shares for more than one half-hour period in the aggregate during regular trading hours of any suspension or limitation imposed on trading (by reason of movements in price exceeding limits permitted by the relevant stock exchange or otherwise) in the Shares or in any options contracts or futures contracts relating to the Shares.”


 


Settlement Terms.


 


	 	Settlement Method:	For any Option, Net Share Settlement; provided that if the Relevant Settlement Method set forth below for such Option is not Net Share Settlement, then the Settlement Method for such Option shall be such Relevant Settlement Method, but only if Counterparty shall have notified Dealer of the Relevant Settlement Method in the Notice of Exercise or Notice of Final Settlement Method, as applicable, for such Option.
	 	 	 
	 	Relevant Settlement Method:	In respect of any Option:
	 	 	 
	 	 	(i)  if Counterparty has elected to settle its conversion obligations in respect of the related Convertible Note (A) entirely in Shares pursuant to Section 14.02(a)(iv)(A) of the Indenture (together with cash in lieu of fractional Shares) (such settlement method, “Settlement in Shares”), (B) in a combination of cash and Shares pursuant to Section 14.02(a)(iv)(C) of the Indenture with a Specified Cash Amount less than USD 1,000 (such settlement method, “Low Cash Combination Settlement”) or (C) in a combination of cash and Shares pursuant to Section 14.02(a)(iv)(C) of the Indenture with a Specified Cash Amount equal to USD 1,000, then, in each case, the Relevant Settlement Method for such Option shall be Net Share Settlement;


 




    	 	-4-	 



     

    

 


	 	 	(ii)  if Counterparty has elected to settle its conversion obligations in respect of the related Convertible Note in a combination of cash and Shares pursuant to Section 14.02(a)(iv)(C) of the Indenture with a Specified Cash Amount greater than USD 1,000, then the Relevant Settlement Method for such Option shall be Combination Settlement; and
	 	 	 
	 	 	(iii)  if Counterparty has elected to settle its conversion obligations in respect of the related Convertible Note entirely in cash pursuant to Section 14.02(a)(iv)(B) of the Indenture (such settlement method, “Settlement in Cash”), then the Relevant Settlement Method for such Option shall be Cash Settlement.
	 	 	 
	 	Net Share Settlement:	If Net Share Settlement is applicable to any Option exercised or deemed exercised hereunder, Dealer will deliver to Counterparty, on the relevant Settlement Date for each such Option, a number of Shares (the “Net Share Settlement Amount”) equal to the sum, for each Valid Day during the Settlement Averaging Period for each such Option, of (i) (a) the Daily Option Value for such Valid Day, divided by (b) the Relevant Price on such Valid Day, divided by (ii) the number of Valid Days in the Settlement Averaging Period; provided that in no event shall the Net Share Settlement Amount for any Option exceed a number of Shares equal to the Applicable Limit for such Option divided by the Applicable Limit Price on the Settlement Date for such Option.
	 	 	 
	 	 	Dealer will pay cash in lieu of delivering any fractional Shares to be delivered with respect to any Net Share Settlement Share Amount valued at the Relevant Price for the last Valid Day of the Settlement Averaging Period.
	 	 	 
	 	Combination Settlement:	If Combination Settlement is applicable to any Option exercised or deemed exercised hereunder, Dealer will pay or deliver, as the case may be, to Counterparty, on the relevant Settlement Date for each such Option:


 


		(i)	cash (the “Combination Settlement Cash Amount”) equal to the sum, for each Valid
Day during the Settlement Averaging Period for such Option, of (A) an amount (the “Daily Combination Settlement Cash Amount”)
equal to the lesser of (1) the product of (x) the Applicable Percentage and (y) the Specified Cash Amount minus USD 1,000
and (2) the Daily Option Value, divided by (B) the number of Valid Days in the Settlement Averaging Period; provided
that if the calculation in clause (A) above results in zero or a negative number for any Valid Day, the Daily Combination Settlement
Cash Amount for such Valid Day shall be deemed to be zero; and



 




    	 	-5-	 



     

    

 


		(ii)	Shares (the “Combination Settlement Share Amount”) equal to the sum, for each
Valid Day during the Settlement Averaging Period for such Option, of a number of Shares for such Valid Day (the “Daily
Combination Settlement Share Amount”) equal to (A) (1) the Daily Option Value on such Valid Day minus the
Daily Combination Settlement Cash Amount for such Valid Day, divided by (2) the Relevant Price on such Valid Day, divided
by (B) the number of Valid Days in the Settlement Averaging Period; provided that if the calculation in sub-clause (A)(1)
above results in zero or a negative number for any Valid Day, the Daily Combination Settlement Share Amount for such Valid Day
shall be deemed to be zero;



 


	 	 	provided that in no event shall the sum of (x) the Combination Settlement Cash Amount for any Option and (y) the Combination Settlement Share Amount for such Option multiplied by the Applicable Limit Price on the Settlement Date for such Option, exceed the Applicable Limit for such Option.
	 	 	 
	 	 	Dealer will pay cash in lieu of delivering any fractional Shares to be delivered with respect to any Combination Settlement Share Amount valued at the Relevant Price for the last Valid Day of the Settlement Averaging Period.
	 	 	 
	 	Cash Settlement:	If Cash Settlement is applicable to any Option exercised or deemed exercised hereunder, in lieu of Section 8.1 of the Equity Definitions, Dealer will pay to Counterparty, on the relevant Settlement Date for each such Option, an amount of cash (the “Cash Settlement Amount”) equal to the sum, for each Valid Day during the Settlement Averaging Period for such Option, of (i) the Daily Option Value for such Valid Day, divided by (ii) the number of Valid Days in the Settlement Averaging Period.  
	 	 	 
	 	Daily Option Value:	For any Valid Day, an amount equal to (i) the Option Entitlement on such Valid Day, multiplied by (ii) the Relevant Price on such Valid Day less the Strike Price on such Valid Day; provided that if the calculation contained in clause (ii) above results in a negative number, the Daily Option Value for such Valid Day shall be deemed to be zero.  In no event will the Daily Option Value be less than zero.
	 	 	 
	 	Make-Whole Adjustment:	Notwithstanding anything to the contrary herein, in respect of any exercise of Options relating to a conversion of Convertible Notes for which additional Shares will be added to the “Conversion Rate” (as defined in the Indenture) as determined pursuant to Section 14.03 of the Indenture, the Daily Option Value shall be calculated as if the Option Entitlement included the Applicable Percentage of the number of such additional Shares as determined with reference to the adjustment set forth in such Section 14.03 of the Indenture; provided that if the sum of (i) the product of (a) the number of Shares (if any) deliverable by Dealer to Counterparty per exercised Option and (b) the Applicable Limit Price on the Settlement Date and (ii) the amount of cash (if any) payable by Dealer to Counterparty per exercised Option would otherwise exceed the amount per Option, as determined by the Calculation Agent (acting in good faith and in a commercially reasonable manner), that would be payable by Dealer under Section 6 of the Agreement if (x) the relevant  Conversion Date were an Early Termination Date resulting from an Additional Termination Event with respect to which the Transaction was the sole Affected Transaction and Counterparty was the sole Affected Party and (y) Section 14.03 of the Indenture were deleted, then each Daily Option Value shall be proportionately reduced to the extent necessary to eliminate such excess.


 




    	 	-6-	 



     

    

 


	 	Applicable Limit:	For any Option, an amount of cash equal to the Applicable Percentage multiplied by the excess of (i) the aggregate of (A) the amount of cash, if any, paid to the Holder of the related Convertible Note upon conversion of such Convertible Note and (B) the number of Shares, if any, delivered to the Holder of the related Convertible Note upon conversion of such Convertible Note multiplied by the Applicable Limit Price on the Settlement Date for such Option, over (ii) USD 1,000.  
	 	 	 
	 	Applicable Limit Price:	On any day, the opening price as displayed under the heading “Op” on Bloomberg page ACET <equity> (or any successor thereto).
	 	 	 
	 	Valid Day:	A day on which (i) there is no Market Disruption Event and (ii) trading in the Shares generally occurs on the Exchange or, if the Shares are not then listed on the Exchange, on the principal other United States national or regional securities exchange on which the Shares are then listed or, if the Shares are not then listed on a United States national or regional securities exchange, on the principal other market on which the Shares are then listed or quoted. If the Shares are not so listed or quoted, “Valid Day” means a Business Day.
	 	 	 
	 	Scheduled Valid Day:	A day that is scheduled to be a Valid Day on the principal United States national or regional securities exchange or market on which the Shares are listed or quoted.  If the Shares are not so listed or quoted, “Scheduled Valid Day” means a Business Day.
	 	 	 
	 	Business Day:	Any day other than a Saturday, a Sunday or a day on which the Federal Reserve Bank of New York is authorized or required by law or executive order to close or be closed.  
	 	 	 
	 	Relevant Price:	On any Valid Day, the per Share volume-weighted average price as displayed under the heading “Bloomberg VWAP” on Bloomberg page ACET <equity> AQR (or any successor thereto) in respect of the period from the scheduled opening time of the Exchange to the Scheduled Closing Time of the Exchange on such Valid Day (or if such volume-weighted average price is unavailable at such time, the market value of one Share on such Valid Day, as determined by the Calculation Agent (acting in good faith and in a commercially reasonable manner) using, if practicable, a volume-weighted average method).  The Relevant Price will be determined without regard to after-hours trading or any other trading outside of the regular trading session trading hours.


 




    	 	-7-	 



     

    

 


	 	Settlement Averaging Period:	For any Option and regardless of the Settlement Method applicable to such Option:


 


		(i)	if the related Conversion Date occurs prior to the Free Convertibility Date, the 60 consecutive
Valid Days commencing on, and including, the second Valid Day following such Conversion Date; provided that if the Notice
of Exercise for such Option specifies that Settlement in Shares or Low Cash Combination Settlement applies to the related Convertible
Note, the Settlement Averaging Period shall be the 120 consecutive Valid Day period commencing on, and including, the second Valid
Day immediately following such Conversion Date; or



 


		(ii)	if the related Conversion Date occurs on or following the Free Convertibility Date, the 60 consecutive
Valid Days commencing on, and including, the 62nd Scheduled Valid Day immediately prior to the Expiration Date; provided
that if the Notice of Exercise or Notice of Final Settlement Method, as applicable, for such Option specifies that Settlement in
Shares or Low Cash Combination Settlement applies to the related Convertible Note, the Settlement Averaging Period shall be the
120 consecutive Valid Days commencing on, and including, the 122nd Scheduled Valid Day immediately prior to the Expiration Date.



 


	 	Settlement Date:	For any Option, the third Business Day immediately following the final Valid Day of the Settlement Averaging Period for such Option.
	 	 	 
	 	Settlement Currency:	USD
	 	 	 
	 	Other Applicable Provisions:	The provisions of Sections 9.1(c), 9.8, 9.9 and 9.11 of the Equity Definitions will be applicable, except that all references in such provisions to “Physically-settled” shall be read as references to “Share Settled”.  “Share Settled” in relation to any Option means that Net Share Settlement or Combination Settlement is applicable to that Option.
	 	 	 
	 	Representation and Agreement:	Notwithstanding anything to the contrary in the Equity Definitions (including, but not limited to, Section 9.11 thereof), the parties acknowledge that (i) any Shares delivered to Counterparty shall be, upon delivery, subject to restrictions and limitations arising from Counterparty’s status as issuer of the Shares under applicable securities laws, (ii) Dealer may deliver any Shares required to be delivered hereunder in certificated form in lieu of delivery through the Clearance System and (iii) any Shares delivered to Counterparty may be “restricted securities” (as defined in Rule 144 under the Securities Act of 1933, as amended (the “Securities Act”)).


 




    	 	-8-	 



     

    

 


3.           Additional
Terms applicable to the Transaction.


 


Adjustments applicable to the
Transaction:


 


	 	Potential Adjustment Events:	Notwithstanding Section 11.2(e) of the Equity Definitions, a “Potential Adjustment Event” means an occurrence of any event or condition, as set forth in any Dilution Adjustment Provision, that would result in an adjustment under the Indenture to the “Conversion Rate” or the composition of a “unit of Reference Property” or to any “Last Reported Sale Price” , “Daily VWAP,” “Daily Conversion Value” or “Daily Settlement Amount” (each as defined in the Indenture).  For the avoidance of doubt, Dealer shall not have any delivery or payment obligation hereunder, and no adjustment shall be made to the terms of the Transaction, on account of (x) any distribution of cash, property or securities by Counterparty to holders of the Convertible Notes (upon conversion or otherwise) or (y) any other transaction in which holders of the Convertible Notes are entitled to participate, in each case, in lieu of an adjustment under the Indenture of the type referred to in the immediately preceding sentence (including, without limitation, pursuant to the fourth sentence of the first paragraph of Section 14.04(c) of the Indenture or the third sentence of the second paragraph of Section 14.04(d) of the Indenture). 
	 	 	 
	 	Method of Adjustment:	Calculation Agent Adjustment, which means that, notwithstanding Section 11.2(c) of the Equity Definitions, upon any Potential Adjustment Event, the Calculation Agent shall make a corresponding adjustment to any one or more of the Strike Price, Number of Options, Option Entitlement and any other variable relevant to the exercise, settlement or payment for the Transaction.
	 	 	 
	 	 	Notwithstanding the foregoing and “Consequences of Merger Events / Tender Offers” below, if the Calculation Agent in good faith disagrees with any adjustment to the Convertible Notes that involves an exercise of discretion by Counterparty or its board of directors (including, without limitation, pursuant to Section 14.05 of the Indenture, Section 14.07 of the Indenture or any supplemental indenture entered into thereunder or in connection with any proportional adjustment or the determination of the fair value of any securities, property, rights or other assets), then in each such case, the Calculation Agent will determine the adjustment to be made to any one or more of the Strike Price, Number of Options, Option Entitlement and any other variable relevant to the exercise, settlement or payment for the Transaction in a commercially reasonable manner; provided further that, notwithstanding the foregoing, if any Potential Adjustment Event occurs during the Settlement Averaging Period but no adjustment was made to any Convertible Note under the Indenture because the relevant Holder (as such term is defined in the Indenture) was deemed to be a record owner of the underlying Shares on the related Conversion Date, then the Calculation Agent shall make an adjustment, as determined by it, to the terms hereof in order to account for such Potential Adjustment Event.


 




    	 	-9-	 



     

    

 


	 	Dilution Adjustment Provisions:	Sections 14.04(a), (b), (c), (d) and (e) and Section 14.05 of the Indenture.


 


Extraordinary Events applicable
to the Transaction:


 


	 	Merger Events:	Applicable; provided that notwithstanding Section 12.1(b) of the Equity Definitions, a “Merger Event” means the occurrence of any event or condition set forth in the definition of “Merger Event” in Section 14.07(a) of the Indenture.
	 	 	 
	 	Tender Offers:	Applicable; provided that notwithstanding Section 12.1(d) of the Equity Definitions, a “Tender Offer” means the occurrence of any event or condition set forth in Section 14.04(e) of the Indenture.
	 	 	 
	 	Consequences of Merger Events /	 
	 	Tender Offers:	Notwithstanding Section 12.2 and Section 12.3 of the Equity Definitions, upon the occurrence of a Merger Event or a Tender Offer, the Calculation Agent shall make a corresponding adjustment in respect of any adjustment under the Indenture to any one or more of the nature of the Shares (in the case of a Merger Event), Strike Price, Number of Options, Option Entitlement and any other variable relevant to the exercise, settlement or payment for the Transaction, subject to the second paragraph under “Method of Adjustment”; provided, however, that such adjustment shall be made without regard to any adjustment to the Conversion Rate pursuant to any Excluded Provision; provided further that if, with respect to a Merger Event or a Tender Offer, (i) the consideration for the Shares includes (or, at the option of a holder of Shares, may include) shares of an entity or person that is not a corporation or is not organized under the laws of the United States, any State thereof or the District of Columbia or (ii) the Counterparty to the Transaction following such Merger Event or Tender Offer will not be a corporation, then, in either case, Cancellation and Payment (Calculation Agent Determination) may apply at Dealer’s sole election.
	 	 	 
	 	Nationalization, Insolvency or Delisting:	Cancellation and Payment (Calculation Agent Determination); provided that, in addition to the provisions of Section 12.6(a)(iii) of the Equity Definitions, it will also constitute a Delisting if the Exchange is located in the United States and the Shares are not immediately re-listed, re-traded or re-quoted on any of the New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or their respective successors); if the Shares are immediately re-listed, re-traded or re-quoted on any of the New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or their respective successors), such exchange or quotation system shall thereafter be deemed to be the Exchange.


 




    	 	-10-	 



     

    

 


Additional
Disruption Events:


 


	 	Change in Law:	Applicable; provided that Section 12.9(a)(ii) of the Equity Definitions is hereby amended by (i) replacing the word “Shares” with the phrase “Hedge Positions” in clause (X) thereof and (ii) inserting the parenthetical “(including, for the avoidance of doubt and without limitation, adoption or promulgation of new regulations authorized or mandated by existing statute)” at the end of clause (A) thereof.
	 	 	 
	 	Failure to Deliver:	Applicable
	 	 	 
	 	Hedging Disruption:	Applicable; provided that:


 


		(i)	Section 12.9(a)(v) of the Equity Definitions is hereby amended by (a) inserting the following
words at the end of clause (A) thereof: “in the manner contemplated by the Hedging Party on the Trade Date” and (b) inserting
the following two phrases at the end of such Section:



 


			“For the avoidance of doubt, the term “equity price risk” shall be deemed to
include, but shall not be limited to, stock price and volatility risk. And, for the further avoidance of doubt, any such transactions
or assets referred to in phrases (A) or (B) above must be available on commercially reasonable pricing terms.”; and



 


		(ii)	Section 12.9(b)(iii) of the Equity Definitions is hereby amended by inserting in the third line
thereof, after the words “to terminate the Transaction”, the words “or a portion of the Transaction affected
by such Hedging Disruption”.



 


	 	Increased Cost of Hedging:	Applicable
	 	 	 
	 	Hedging Party:	For all applicable Additional Disruption Events, Dealer.


 


	 	Determining Party:	For all applicable Extraordinary Events, Dealer.
	 	 	 
	 	Non-Reliance:	Applicable.
	 	 	 
	 	Agreements and Acknowledgments	 
	 	Regarding Hedging Activities:	Applicable
	 	 	 
	 	Additional Acknowledgments:	Applicable


 




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	4.	Calculation Agent.	Dealer, whose judgments, determinations and calculations shall be made in good faith and in a commercially reasonable manner. Following any determination or calculation by the Calculation Agent hereunder, upon a request by Counterparty, the Calculation Agent shall promptly (but in any event within five Scheduled Trading Days) provide to Counterparty by e-mail to the e-mail address provided by Counterparty in such request a report (in a commonly used file format for the storage and manipulation of financial data) displaying in reasonable detail the basis for such determination or calculation (including any assumptions used in making such determination or calculation), it being understood that the Calculation Agent shall not be obligated to disclose any proprietary or confidential models or other proprietary or confidential information used by it for such determination or calculation.  If promptly following such written explanation Counterparty so requests, the Calculation Agent shall, to the extent permitted by applicable legal, regulatory or self-regulatory requirements and related policies and procedures applicable to the Calculation Agent (as reasonably determined by the Calculation Agent), discuss the related judgment, determination or calculation with Counterparty in good faith; provided that, for the avoidance of doubt and notwithstanding the obligation of the Calculation Agent to discuss a judgment, determination or calculation with Counterparty as set forth in this paragraph, any such judgment, determination or calculation by the Calculation Agent shall be final and conclusive.
	 	 	 
	 	 	Whenever the Calculation Agent is called upon to make a judgment, determination or calculation pursuant to the terms of this Confirmation or the Equity Definitions to take into account the effect of an event, the Calculation Agent shall make such adjustment by reference to the effect of such event on the Hedging Party, assuming that the Hedging Party maintains a commercially reasonable hedge position.


 


5.           Account
Details.


 


(a)          Account
for payments to Counterparty:


 


	 	Bank:	JPMorgan Chase Bank, N.A.
	 	ABA#:	021000021
	 	Acct No.:	777-178648
	 	Beneficiary:	Aceto Corporation
	 	Ref:	Convertible Note Hedge Transaction
	 	 	 
	 	Account for delivery of Shares to Counterparty:
	 	 	 
	 	To be provided by Counterparty.


 


(b)          Account
for payments to Dealer:


 


	 	Bank:	Wells Fargo Bank, N.A.
	 	ABA#:	121-000-248
	 	Internal Acct No.: 	01020304464228
	 	A/C Name:	WFB Equity Derivatives  
	 	 	 
	 	Account for delivery of Shares from Dealer:
	 	 	 
	 	DTC Number:  2072
	 	Agent ID:  52196
	 	Institution ID:  52196  


 




    	 	-12-	 



     

    

 


6.           Offices.


 


		(a)	The Office of Counterparty for the Transaction is: Inapplicable,
Counterparty is not a Multibranch Party.



 


		(b)	The Office of Dealer for the Transaction is: Charlotte



 


7.           Notices.


 


		(a)	Address for notices or communications to Counterparty:



 


Aceto Corporation


4 Tri Harbor Court


Port Washington, NY 11050




	 	Attention:	Steven S. Rogers
	 	 	Senior VP & General Counsel
	 	Telephone No.:	(516) 478-9514
	 	E-mail:	SRogers@aceto.com


 


		(b)	Address for notices or communications to Dealer:



 


Notwithstanding anything to the contrary in the Agreement,
all notices to Dealer in connection with the Transaction are effective only upon delivery of email message to CorporateDerivativeNotifications@wellsfargo.com.


 


8.           Representations
and Warranties of Counterparty.


 


Each of the representations and
warranties of Counterparty set forth in Section 1 of the Purchase Agreement (the “Purchase Agreement”),
dated as of November 10, 2015, among Counterparty, Wells Fargo Securities, LLC and J.P. Morgan Securities LLC, as representatives
of the Initial Purchasers party thereto (the “Initial Purchasers”), are true and correct and are hereby deemed
to be repeated to Dealer as if set forth herein. Counterparty hereby further represents and warrants to Dealer on the date hereof
and on and as of the Premium Payment Date that:


 


		(a)	Counterparty has all necessary corporate power and authority to execute, deliver and perform its
obligations in respect of the Transaction; such execution, delivery and performance have been duly authorized by all necessary
corporate action on Counterparty’s part; and this Confirmation has been duly and validly executed and delivered by Counterparty
and constitutes its valid and binding obligation, enforceable against Counterparty in accordance with its terms, subject to applicable
bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and similar laws affecting creditors’ rights and
remedies generally, and subject, as to enforceability, to general principles of equity, including principles of commercial reasonableness,
good faith and fair dealing (regardless of whether enforcement is sought in a proceeding at law or in equity) and except that rights
to indemnification and contribution hereunder may be limited by federal or state securities laws or public policy relating thereto.



 


		(b)	Neither the execution and delivery of this Confirmation nor the incurrence or performance of obligations
of Counterparty hereunder will conflict with or result in a breach of the certificate of incorporation or by-laws (or any equivalent
documents) of Counterparty, or any applicable law or regulation, or any order, writ, injunction or decree of any court or governmental
authority or agency, or any agreement or instrument to which Counterparty or any of its subsidiaries is a party or by which Counterparty
or any of its subsidiaries is bound or to which Counterparty or any of its subsidiaries is subject, or constitute a default under,
or result in the creation of any lien under, any such agreement or instrument.



 


		(c)	No consent, approval, authorization, or order of, or filing with, any governmental agency or body
or any court is required in connection with the execution, delivery or performance by Counterparty of this Confirmation, except
such as have been obtained or made and such as may be required under the Securities Act or state securities laws.



 




    	 	-13-	 



     

    

 


		(d)	Counterparty is not and, after consummation of the transactions contemplated hereby, will not be
required to register as an “investment company” as such term is defined in the Investment Company Act of 1940, as amended.



 


		(e)	Counterparty is an “eligible contract participant” (as such term is defined in Section
1a(18) of the Commodity Exchange Act, as amended, other than a person that is an eligible contract participant under Section 1a(18)(C)
of the Commodity Exchange Act).



 


		(f)	Each of it and its affiliates is not, on the date hereof, in possession of any material non-public
information with respect to Counterparty or the Shares.



 


		(g)	No state or local (including any non-U.S. jurisdiction’s) law, rule, regulation or regulatory
order applicable to the Shares would give rise to any reporting, consent, registration or other requirement (including without
limitation a requirement to obtain prior approval from any person or entity) as a result of Dealer or its affiliates owning or
holding (however defined) Shares.



 


		(h)	Counterparty (A) is capable of evaluating investment risks independently, both in general and with
regard to all transactions and investment strategies involving a security or securities; (B) will exercise independent judgment
in evaluating the recommendations of any broker-dealer or its associated persons, unless it has otherwise notified the broker-dealer
in writing; and (C) has total assets of at least $50 million.



 


		9.	Other Provisions.



 


		(a)	Opinions. Counterparty shall deliver to Dealer an opinion of counsel, dated as of
the Effective Date, with respect to the matters set forth in Sections 8(a) through (c) of this Confirmation. Delivery of such opinion
to Dealer shall be a condition precedent for the purpose of Section 2(a)(iii) of the Agreement with respect to each obligation
of Dealer under Section 2(a)(i) of the Agreement.



 


		(b)	Repurchase Notices. Counterparty shall, on any day on which Counterparty effects
any repurchase of Shares, promptly give Dealer a written notice of such repurchase (a “Repurchase Notice”) on
such day if following such repurchase, the number of outstanding Shares as determined on such day is (i) less than 28.0 million
(in the case of the first such notice) or (ii) thereafter more than 1.4 million less than the number of Shares included in the
immediately preceding Repurchase Notice. Counterparty agrees to indemnify and hold harmless Dealer and its affiliates and their
respective officers, directors, employees, affiliates, advisors, agents and controlling persons (each, an “Indemnified
Person”) from and against any and all reasonable losses (including losses relating to Dealer’s hedging activities
as a consequence of becoming, or of the risk of becoming, a Section 16 “insider”, including without limitation, any
forbearance from hedging activities or cessation of hedging activities and any losses in connection therewith with respect to the
Transaction), claims, damages, judgments, liabilities and expenses (including reasonable attorney’s fees), joint or several,
which an Indemnified Person may become subject to, solely as a result of Counterparty’s failure to provide Dealer with a
Repurchase Notice on the day and in the manner specified in this paragraph, and to reimburse, within 30 days, upon written request,
each of such Indemnified Persons for any reasonable legal or other expenses incurred (each as reasonably documented to Counterparty)
in connection with investigating, preparing for, providing testimony or other evidence in connection with or defending any of the
foregoing. If any suit, action, proceeding (including any governmental or regulatory investigation), claim or demand shall be brought
or asserted against the Indemnified Person as a result of Counterparty’s failure to provide Dealer with a Repurchase Notice
in accordance with this paragraph, such Indemnified Person shall promptly notify Counterparty in writing, and Counterparty, upon
request of the Indemnified Person, shall retain counsel reasonably satisfactory to the Indemnified Person to represent the Indemnified
Person and any others Counterparty may designate in such proceeding and shall pay the fees and expenses of such counsel related
to such proceeding. Counterparty shall not be liable for any settlement of any proceeding contemplated by this paragraph that is
effected without its written consent, but if settled with such consent or if there be a final judgment for the plaintiff, Counterparty
agrees to indemnify any Indemnified Person from and against any reasonable loss or liability by reason of such settlement or judgment.
Counterparty shall not, without the prior written consent of the Indemnified Person, effect any settlement of any pending or threatened
proceeding contemplated by this paragraph that is in respect of which any Indemnified Person is or could have been a party and
indemnity could have been sought hereunder by such Indemnified Person, unless such settlement includes an unconditional release
of such Indemnified Person from all liability on claims that are the subject matter of such proceeding on terms reasonably satisfactory
to such Indemnified Person. If the indemnification provided for in this paragraph is unavailable to an Indemnified Person or insufficient
in respect of any losses, claims, damages or liabilities referred to therein, then Counterparty hereunder, in lieu of indemnifying
such Indemnified Person thereunder, shall contribute to the amount paid or payable by such Indemnified Person as a result of such
losses, claims, damages or liabilities. The remedies provided for in this paragraph (b) are not exclusive and shall not limit any
rights or remedies which may otherwise be available to any Indemnified Person at law or in equity. The indemnity and contribution
agreements contained in this paragraph shall remain operative and in full force and effect regardless of the termination of the
Transaction.



 




    	 	-14-	 



     

    

 


		(c)	Regulation M. Counterparty is not on the Trade Date engaged in a distribution, as
such term is used in Regulation M under the Securities Exchange Act of 1934, as amended (the “Exchange Act”),
of any securities of Counterparty, other than a distribution meeting the requirements of the exception set forth in Rules 101(b)(10)
and 102(b)(7) of Regulation M. Counterparty shall not, until the second Scheduled Trading Day immediately following the Effective
Date, engage in any such distribution.



 


		(d)	No Manipulation. Counterparty is not entering into the Transaction to create actual
or apparent trading activity in the Shares (or any security convertible into or exchangeable for the Shares) or to raise or depress
or otherwise manipulate the price of the Shares (or any security convertible into or exchangeable for the Shares) or otherwise
in violation of the Exchange Act.



 


		(e)	Transfer or Assignment.



 


		(i)	Counterparty shall have the right to transfer or assign its rights and obligations hereunder with
respect to all, but not less than all, of the Options hereunder (such Options, the “Transfer Options”); provided
that such transfer or assignment shall be subject to reasonable conditions that Dealer may impose, including but not limited, to
the following conditions:



 


		(A)	With respect to any Transfer Options, Counterparty shall not be released from its notice and indemnification
obligations pursuant to Section 9(b) or any obligations under Section 9(n) or 9(s) of this Confirmation;



 


		(B)	Any Transfer Options shall only be transferred or assigned to a third party that is a United States
person (as defined in the Internal Revenue Code of 1986, as amended);



 


		(C)	Such transfer or assignment shall be effected on terms, including any reasonable undertakings by
such third party (including, but not limited to, an undertaking with respect to compliance with applicable securities laws in a
manner that, in the reasonable and good faith judgment of Dealer, will not expose Dealer to material risks under applicable securities
laws) and execution of any documentation and delivery of legal opinions with respect to securities laws and other matters by such
third party and Counterparty, as are requested and reasonably satisfactory to Dealer;



 


		(D)	Dealer will not, as a result of such transfer and assignment, be required to pay the transferee
on any payment date an amount under Section 2(d)(i)(4) of the Agreement greater than an amount that Dealer would have been required
to pay to Counterparty in the absence of such transfer and assignment;



 




    	 	-15-	 



     

    

 


		(E)	An Event of Default, Potential Event of Default or Termination Event will not occur as a result
of such transfer and assignment;



 


		(F)	Without limiting the generality of clause (B), Counterparty shall cause the transferee to make
such Payee Tax Representations and to provide such tax documentation as may be reasonably requested by Dealer to permit Dealer
to determine that results described in clauses (D) and (E) will not occur upon or after such transfer and assignment; and



 


		(G)	Counterparty shall be responsible for all reasonable costs and expenses, including reasonable outside
counsel fees, incurred by Dealer in connection with such transfer or assignment.



 


		(ii)	Dealer may, without Counterparty’s consent, transfer or assign all or any part of its rights
or obligations under the Transaction (A) to any affiliate of Dealer (1) that has a long-term issuer rating that is equal to or
better than Dealer’s credit rating at the time of such transfer or assignment, or (2) whose obligations hereunder will be
guaranteed, pursuant to the terms of a customary guarantee in a form used by Dealer generally for similar transactions with parties
similar to Counterparty (with such determination made by Dealer in good faith and in a commercially reasonable manner), by Dealer
or Dealer’s ultimate parent, or (B) to any other third party with a long-term issuer rating equal to or better than the lesser
of (1) the credit rating of Dealer at the time of the transfer and (2) A- by Standard and Poor’s Rating Group, Inc. or its
successor (“S&P”), or A3 by Moody’s Investor Service, Inc. (“Moody’s”) or,
if either S&P or Moody’s ceases to rate such debt, at least an equivalent rating or better by a substitute rating agency
mutually agreed by Counterparty and Dealer. If at any time at which (A) the Section 16 Percentage exceeds 7.5%, (B) the Option
Equity Percentage exceeds 14.5%, or (C) the Share Amount exceeds the Applicable Share Limit (if any applies) (any such condition
described in clauses (A), (B) or (C), an “Excess Ownership Position”), Dealer is unable after using its commercially
reasonable efforts to effect a transfer or assignment of Options to a third party on pricing terms reasonably acceptable to Dealer
and within a time period reasonably acceptable to Dealer such that no Excess Ownership Position exists, then Dealer may designate
any Exchange Business Day as an Early Termination Date with respect to a portion of the Transaction (the “Terminated Portion”),
such that following such partial termination no Excess Ownership Position exists. In the event that Dealer so designates an Early
Termination Date with respect to a portion of the Transaction, a payment shall be made pursuant to Section 6 of the Agreement as
if (1) an Early Termination Date had been designated in respect of a Transaction having terms identical to the Transaction and
a Number of Options equal to the number of Options underlying the Terminated Portion, (2) Counterparty were the sole Affected Party
with respect to such partial termination and (3) the Terminated Portion were the sole Affected Transaction (and, for the avoidance
of doubt, the provisions of Section 9(l) shall apply to any amount that is payable by Dealer to Counterparty pursuant to this sentence
as if Counterparty was not the Affected Party). The “Section 16 Percentage” as of any day is the fraction, expressed
as a percentage, (A) the numerator of which is the number of Shares that Dealer and any of its affiliates or any other person subject
to aggregation with Dealer for purposes of the “beneficial ownership” test under Section 13 of the Exchange Act, or
any “group” (within the meaning of Section 13 of the Exchange Act) of which Dealer is or may be deemed to be a part
beneficially owns (within the meaning of Section 13 of the Exchange Act), without duplication, on such day (or, to the extent that
for any reason the equivalent calculation under Section 16 of the Exchange Act and the rules and regulations thereunder results
in a higher number, such higher number) and (B) the denominator of which is the number of Shares outstanding on such day. The “Option
Equity Percentage” as of any day is the fraction, expressed as a percentage, (A) the numerator of which is the sum of
(1) the product of the Number of Options and the Option Entitlement and (2) the aggregate number of Shares underlying any other
call option transaction sold by Dealer to Counterparty, and (B) the denominator of which is the number of Shares outstanding. The
“Share Amount” as of any day is the number of Shares that Dealer and any person whose ownership position would
be aggregated with that of Dealer (Dealer or any such person, a “Dealer Person”) under any law, rule, regulation,
regulatory order or organizational documents or contracts of Counterparty that are, in each case, applicable to ownership of Shares
(“Applicable Restrictions”), owns, beneficially owns, constructively owns, controls, holds the power to vote
or otherwise meets a relevant definition of ownership under any Applicable Restriction, as determined by Dealer in its reasonable
discretion. The “Applicable Share Limit” means a number of Shares equal to (A) the minimum number of Shares
that could give rise to reporting or registration obligations or other requirements (including obtaining prior approval from any
person or entity) of a Dealer Person, or could result in an adverse effect on a Dealer Person, under any Applicable Restriction,
as determined by Dealer in its reasonable discretion, minus (B) 1% of the number of Shares outstanding.



 




    	 	-16-	 



     

    

 


		(iii)	Notwithstanding any other provision in this Confirmation to the contrary requiring or allowing
Dealer to purchase, sell, receive or deliver any Shares or other securities, or make or receive any payment in cash, to or from
Counterparty, Dealer may designate any of its affiliates to purchase, sell, receive or deliver such Shares or other securities,
or to make or receive such payment in cash, and otherwise to perform Dealer’s obligations in respect of the Transaction and
any such designee may assume such obligations. Dealer shall be discharged of its obligations to Counterparty to the extent of any
such performance.



 


		(f)	Staggered Settlement. If upon advice of counsel with respect to applicable legal
and regulatory requirements, including any requirements relating to Dealer’s hedging activities hereunder, Dealer reasonably
determines that it would not be practicable or advisable to deliver, or to acquire Shares to deliver, any or all of the Shares
to be delivered by Dealer on any Settlement Date for the Transaction, Dealer may, by notice to Counterparty on or prior to any
Settlement Date (a “Nominal Settlement Date”), elect to deliver the Shares on two or more dates (each, a “Staggered
Settlement Date”) as follows:



 


		(i)	in such notice, Dealer will specify to Counterparty the related Staggered Settlement Dates (the
first of which will be such Nominal Settlement Date and the last of which will be no later than the twentieth (20th) Exchange Business
Day following such Nominal Settlement Date) and the number of Shares that it will deliver on each Staggered Settlement Date;



 


		(ii)	the aggregate number of Shares that Dealer will deliver to Counterparty hereunder on all such Staggered
Settlement Dates will equal the number of Shares that Dealer would otherwise be required to deliver on such Nominal Settlement
Date; and



 


		(iii)	if the Net Share Settlement terms or the Combination Settlement terms set forth above were to apply
on the Nominal Settlement Date, then the Net Share Settlement terms or the Combination Settlement terms, as the case may be, will
apply on each Staggered Settlement Date, except that the Shares otherwise deliverable on such Nominal Settlement Date will be allocated
among such Staggered Settlement Dates as specified by Dealer in the notice referred to in clause (i) above.



 


		(g)	[Reserved].



 


		(h)	Dividends. If at any time during the period from and including the Effective Date,
to but excluding the Expiration Date, (i) an ex-dividend date for a regular quarterly cash dividend occurs with respect to the
Shares (an “Ex-Dividend Date”), and that dividend is less than the Regular Dividend on a per Share basis or
(ii) if no Ex-Dividend Date for a regular quarterly cash dividend occurs with respect to the Shares in any quarterly dividend period
of Counterparty, then the Calculation Agent will make a corresponding adjustment to any one or more of the Strike Price, Number
of Options, Option Entitlement and/or any other variable relevant to the exercise, settlement or payment for the Transaction to
preserve the fair value of the Options to Dealer after taking into account such dividend or lack thereof. “Regular Dividend”
shall mean USD 0.06 per Share per quarter. Upon any adjustment to the Initial Dividend Threshold (as defined in the Indenture)
for the Convertible Notes pursuant to the Indenture, the Calculation Agent will make a corresponding adjustment to the Regular
Dividend for the Transaction.



 




    	 	-17-	 



     

    

 


		(i)	Additional Termination Event. Notwithstanding anything to the contrary in this Confirmation
if an event of default with respect to Counterparty occurs under the terms of the Convertible Notes as set forth in Section 6.01
of the Indenture and results in the acceleration of Counterparty’s obligations thereunder, then such event of default shall
constitute an Additional Termination Event applicable to the Transaction and, with respect to such Additional Termination Event,
(A) Counterparty shall be deemed to be the sole Affected Party, (B) the Transaction shall be the sole Affected Transaction and
(C) Dealer shall be the party entitled to designate an Early Termination Date pursuant to Section 6(b) of the Agreement.



 


		(j)	Amendments to Equity Definitions.



 


		(i)	Section 12.6(a)(ii) of the Equity Definitions is hereby amended by (1) deleting from the fourth
line thereof the word “or” after the word “official” and inserting a comma therefor, and (2) deleting the
semi-colon at the end of subsection (B) thereof and inserting the following words therefor “or (C) the occurrence of any
of the events specified in Section 5(a)(vii)(1) through (9) of the ISDA Master Agreement with respect to that Issuer.”



 


		(ii)	Section 12.9(b)(i) of the Equity Definitions is hereby amended by (1) replacing “either party
may elect” with “Dealer may elect” and (2) replacing “notice to the other party” with “notice
to Counterparty” in the first sentence of such section.



 


		(k)	Setoff. In addition to and without limiting any rights of set-off that a party hereto
may have as a matter of law, pursuant to contract or otherwise, upon the occurrence of an Early Termination Date, Dealer (and only
Dealer)  shall have the right to set off any obligation that it may have to Counterparty under this Confirmation, including
without limitation any obligation to make any payment of cash or delivery of Shares to Counterparty, against any obligation Counterparty
may have to Dealer under any other agreement between Dealer and Counterparty relating to Shares (each such contract or agreement,
a “Separate Agreement”), including without limitation any obligation to make a payment of cash or a delivery
of Shares or any other property or securities. For this purpose, Dealer shall be entitled to convert any obligation (or the relevant
portion of such obligation) denominated in one currency into another currency at the rate of exchange at which it would be able
to purchase the relevant amount of such currency, and to convert any obligation to deliver any non-cash property into an obligation
to deliver cash in an amount calculated by reference to the market value of such property as of the Early Termination Date, as
determined by the Calculation Agent in its sole discretion; provided that in the case of a set-off of any obligation to
release or deliver assets against any right to receive fungible assets, such obligation and right shall be set off in kind and;
provided further that in determining the value of any obligation to deliver Shares, the value at any time of such obligation
shall be determined by reference to the market value of the Shares at such time, as determined in good faith by the Calculation
Agent. If an obligation is unascertained at the time of any such set-off, the Calculation Agent may in good faith estimate the
amount or value of such obligation, in which case set-off will be effected in respect of that estimate, and the relevant party
shall account to the other party at the time such obligation or right is ascertained. For the avoidance of doubt and notwithstanding
anything to the contrary provided in this Section 9(k), in the event of bankruptcy or liquidation of either Counterparty or Dealer
neither party shall have the right to set off any obligation that it may have to the other party under the Transaction against
any obligation such other party may have to it, whether arising under the Agreement, this Confirmation or any other agreement between
the parties hereto, by operation of law or otherwise.



 




    	 	-18-	 



     

    

 


		(l)	Alternative Calculations and Payment on Early Termination and on Certain Extraordinary Events.
If (a) an Early Termination Date (whether as a result of an Event of Default or a Termination Event) occurs or is designated with
respect to the Transaction or (b) the Transaction is cancelled or terminated upon the occurrence of an Extraordinary Event (except
as a result of (i) a Nationalization, Insolvency or Merger Event in which the consideration to be paid to holders of Shares consists
solely of cash, (ii) a Merger Event or Tender Offer that is within Counterparty’s control, or (iii) an Event of Default in
which Counterparty is the Defaulting Party or a Termination Event in which Counterparty is the Affected Party other than an Event
of Default of the type described in Section 5(a)(iii), (v), (vi), (vii) or (viii) of the Agreement or a Termination Event of the
type described in Section 5(b) of the Agreement, in each case that resulted from an event or events outside Counterparty’s
control), and if Dealer would owe any amount to Counterparty pursuant to Section 6(d)(ii) of the Agreement or any Cancellation
Amount pursuant to Article 12 of the Equity Definitions (any such amount, a “Payment Obligation”), then Dealer
shall satisfy the Payment Obligation by the Share Termination Alternative (as defined below), unless (a) Counterparty gives
irrevocable telephonic notice to Dealer, confirmed in writing within one Scheduled Trading Day, no later than 12:00 p.m. (New York
City time) on the Merger Date, Tender Offer Date, Announcement Date (in the case of a Nationalization, Insolvency or Delisting),
Early Termination Date or date of cancellation, as applicable, of its election that the Share Termination Alternative shall not
apply, (b) Counterparty remakes the representation set forth in Section 8(f) as of the date of such election and (c) Dealer agrees,
in its sole discretion, to such election, in which case the provisions of Section 12.7 or Section 12.9 of the Equity Definitions,
or the provisions of Section 6(d)(ii) of the Agreement, as the case may be, shall apply.



 


	 	Share Termination Alternative:	If applicable, Dealer shall deliver to Counterparty the Share Termination Delivery Property on, or within a commercially reasonable period of time after, the date when the relevant Payment Obligation would otherwise be due pursuant to Section 12.7 or 12.9 of the Equity Definitions or Section 6(d)(ii) and 6(e) of the Agreement, as applicable, in satisfaction of such Payment Obligation in the manner reasonably requested by Counterparty free of payment.
	 	 	 
	 	Share Termination Delivery Property:	A number of Share Termination Delivery Units, as calculated by the Calculation Agent, equal to the Payment Obligation divided by the Share Termination Unit Price.  The Calculation Agent shall adjust the Share Termination Delivery Property by replacing any fractional portion of a security therein with an amount of cash equal to the value of such fractional security based on the values used to calculate the Share Termination Unit Price.
	 	 	 
	 	Share Termination Unit Price:	The value to Dealer of property contained in one Share Termination Delivery Unit, as determined by the Calculation Agent in its good faith discretion by commercially reasonable means and notified by the Calculation Agent to Dealer at the time of notification of the Payment Obligation. For the avoidance of doubt, the parties agree that in determining the Share Termination Delivery Unit Price the Calculation Agent may consider the purchase price paid in connection with the purchase of Share Termination Delivery Property.
	 	 	 
	 	Share Termination Delivery Unit:	One Share or, if the Shares have changed into cash or any other property or the right to receive cash or any other property as the result of a Nationalization, Insolvency or Merger Event (any such cash or other property, the “Exchange Property”), a unit consisting of the type and amount of such Exchange Property received by a holder of one Share (without consideration of any requirement to pay cash or other consideration in lieu of fractional amounts of any securities) in such Nationalization, Insolvency or Merger Event, as determined by the Calculation Agent.


 




    	 	-19-	 



     

    

 


	 	Failure to Deliver:	Applicable
	 	 	 
	 	Other applicable provisions:	If Share Termination Alternative is applicable, the provisions of Sections 9.8, 9.9 and 9.11 (as modified above) of the Equity Definitions and the provisions set forth opposite the caption “Representation and Agreement” in Section 2 will be applicable, except that all references in such provisions to “Physically-settled” shall be read as references to “Share Termination Settled” and all references to “Shares” shall be read as references to “Share Termination Delivery Units”.  “Share Termination Settled” in relation to the Transaction means that the Share Termination Alternative is applicable to the Transaction.


 


		(m)	Waiver of Jury Trial. Each party waives, to the fullest extent permitted by applicable
law, any right it may have to a trial by jury in respect of any suit, action or proceeding relating to the Transaction. Each party
(i) certifies that no representative, agent or attorney of either party has represented, expressly or otherwise, that such other
party would not, in the event of such a suit, action or proceeding, seek to enforce the foregoing waiver and (ii) acknowledges
that it and the other party have been induced to enter into the Transaction, as applicable, by, among other things, the mutual
waivers and certifications provided herein.



 


		(n)	Registration. Counterparty hereby agrees that if, in the good faith reasonable judgment
of Dealer, the Shares (“Hedge Shares”) acquired by Dealer for the purpose of hedging its obligations pursuant
to the Transaction cannot be sold in the public market by Dealer without registration under the Securities Act, Counterparty shall,
at its election, either (i) in order to allow Dealer to sell the Hedge Shares in a registered offering, make available to Dealer
an effective registration statement under the Securities Act and enter into an agreement, in form and substance satisfactory to
Dealer, substantially in the form of an underwriting agreement for a registered secondary offering; provided, however,
that if Dealer, in its sole reasonable discretion, is not satisfied with access to due diligence materials, the results of its
due diligence investigation, or the procedures and documentation for the registered offering referred to above, then clause (ii)
or clause (iii) of this paragraph shall apply at the election of Counterparty, (ii) in order to allow Dealer to sell the Hedge
Shares in a private placement, enter into a private placement agreement substantially similar to private placement purchase agreements
customary for private placements of equity securities, in form and substance satisfactory to Dealer (in which case, the Calculation
Agent shall make any adjustments to the terms of the Transaction that are necessary, in its reasonable judgment, to compensate
Dealer for any discount from the public market price of the Shares incurred on the sale of Hedge Shares in a private placement),
or (iii) purchase the Hedge Shares from Dealer at the Relevant Price on such Exchange Business Days, and in the amounts, requested
by Dealer.



 


		(o)	Tax Disclosure. Effective from the date of commencement of discussions concerning
the Transaction, Counterparty and each of its employees, representatives, or other agents may disclose to any and all persons,
without limitation of any kind, the tax treatment and tax structure of the Transaction and all materials of any kind (including
opinions or other tax analyses) that are provided to Counterparty relating to such tax treatment and tax structure.



 


		(p)	Right to Extend. Dealer may postpone or add, in whole or in part, any Valid Day or
Valid Days during the Settlement Averaging Period or any other date of valuation, payment or delivery by Dealer, with respect to
some or all of the Options hereunder, if Dealer reasonably determines, in its discretion, that such action is reasonably necessary
or appropriate to preserve Dealer’s hedging or hedge unwind activity hereunder in light of existing liquidity conditions
or to enable Dealer to effect purchases of Shares in connection with its hedging, hedge unwind or settlement activity hereunder
in a manner that would, if Dealer were Counterparty or an affiliated purchaser of Counterparty, be in compliance with applicable
legal, regulatory or self-regulatory requirements, or with related policies and procedures applicable to Dealer.



 




    	 	-20-	 



     

    

 


		(q)	Status of Claims in Bankruptcy.  Dealer acknowledges and agrees that this
Confirmation is not intended to convey to Dealer rights against Counterparty with respect to the Transaction that are senior to
the claims of common stockholders of Counterparty in any United States bankruptcy proceedings of Counterparty; provided
that nothing herein shall limit or shall be deemed to limit Dealer’s right to pursue remedies in the event of a breach by
Counterparty of its obligations and agreements with respect to the Transaction; provided, further, that nothing herein
shall limit or shall be deemed to limit Dealer’s rights in respect of any transactions other than the Transaction.



 


		(r)	Securities Contract; Swap Agreement. The parties hereto intend for (i) the Transaction
to be a “securities contract” and a “swap agreement” as defined in the Bankruptcy Code (Title 11 of the
United States Code) (the “Bankruptcy Code”), and the parties hereto to be entitled to the protections afforded
by, among other Sections, Sections 362(b)(6), 362(b)(17), 546(e), 546(g), 555 and 560 of the Bankruptcy Code, (ii) a party’s
right to liquidate the Transaction and to exercise any other remedies upon the occurrence of any Event of Default under the Agreement
with respect to the other party to constitute a “contractual right” as described in the Bankruptcy Code, and (iii)
each payment and delivery of cash, securities or other property hereunder to constitute a “margin payment” or “settlement
payment” and a “transfer” as defined in the Bankruptcy Code.



 


		(s)	Notice of Certain Other Events. Counterparty covenants and agrees that:



 


		(i)	promptly following the public announcement of the results of any election by the holders of Shares
with respect to the consideration due upon consummation of any Merger Event, Counterparty shall give Dealer written notice of (x)
the weighted average of the types and amounts of consideration that holders of Shares have elected to receive upon consummation
of such Merger Event or (y) if no holders of Shares affirmatively make such election, the types and amounts of consideration actually
received by holders of Shares (the date of such notification, the “Consideration Notification Date”); provided
that in no event shall the Consideration Notification Date be later than the date on which such Merger Event is consummated; and



 


		(ii)	promptly following any adjustment to the Convertible Notes in connection with any Potential Adjustment
Event, Merger Event or Tender Offer, Counterparty shall give Dealer written notice of the details of such adjustment.



 


		(t)	Wall Street Transparency and Accountability Act. In connection with Section 739 of
the Wall Street Transparency and Accountability Act of 2010 (“WSTAA”), the parties hereby agree that neither
the enactment of WSTAA or any regulation under the WSTAA, nor any requirement under WSTAA or an amendment made by WSTAA, shall
limit or otherwise impair either party’s otherwise applicable rights to terminate, renegotiate, modify, amend or supplement
this Confirmation or the Agreement, as applicable, arising from a termination event, force majeure, illegality, increased costs,
regulatory change or similar event under this Confirmation, the Equity Definitions incorporated herein, or the Agreement (including,
but not limited to, rights arising from Change in Law, Hedging Disruption, Increased Cost of Hedging, an Excess Ownership Position,
or Illegality (as defined in the Agreement)).



 


		(u)	Agreements and Acknowledgements Regarding Hedging. Counterparty understands, acknowledges
and agrees that: (A) at any time on and prior to the Expiration Date, Dealer and its affiliates may buy or sell Shares or other
securities or buy or sell options or futures contracts or enter into swaps or other derivative securities in order to adjust its
hedge position with respect to the Transaction; (B) Dealer and its affiliates also may be active in the market for Shares other
than in connection with hedging activities in relation to the Transaction; (C) Dealer shall make its own determination as to whether,
when or in what manner any hedging or market activities in securities of Issuer shall be conducted and shall do so in a manner
that it deems appropriate to hedge its price and market risk with respect to the Relevant Prices; and (D) any market activities
of Dealer and its affiliates with respect to Shares may affect the market price and volatility of Shares, as well as the Relevant
Prices, each in a manner that may be adverse to Counterparty.



 




    	 	-21-	 



     

    

 


		(v)	Early Unwind. In the event the sale of the “Optional Notes” (as defined
in the Purchase Agreement) is not consummated with the Initial Purchasers for any reason, or Counterparty fails to deliver to Dealer
opinions of counsel as required pursuant to Section 9(a), in each case by 5:00 p.m. (New York City time) on the Premium Payment
Date, or such later date as agreed upon by the parties (the Premium Payment Date or such later date, the “Early Unwind
Date”), the Transaction shall automatically terminate (the “Early Unwind”) on the Early
Unwind Date and (i) the Transaction and all of the respective rights and obligations of Dealer and Counterparty under the Transaction
shall be cancelled and terminated and (ii) each party shall be released and discharged by the other party from and agrees not to
make any claim against the other party with respect to any obligations or liabilities of the other party arising out of and to
be performed in connection with the Transaction either prior to or after the Early Unwind Date; provided that Counterparty
shall purchase from Dealer on the Early Unwind Date all Shares purchased by Dealer or one or more of its affiliates in connection
with the Transaction at the then prevailing market price. Each of Dealer and Counterparty represents and acknowledges to the other
that, subject to the proviso included in this Section 9(v), upon an Early Unwind, all obligations with respect to the Transaction
shall be deemed fully and finally discharged.



 


		(w)	Payment by Counterparty. In the event that, following payment of the Premium, (i)
an Early Termination Date occurs or is designated with respect to the Transaction as a result of a Termination Event or an Event
of Default (other than an Event of Default arising under Section 5(a)(ii) or 5(a)(iv) of the Agreement) and, as a result, Counterparty
owes to Dealer an amount calculated under Section 6(e) of the Agreement, or (ii) Counterparty owes to Dealer, pursuant to Section
12.7 or Section 12.9 of the Equity Definitions, an amount calculated under Section 12.8 of the Equity Definitions, such amount
shall be deemed to be zero.



 


		(x)	Tax Provisions.



 


		(i)	Counterparty will be treated as having made the following representation for purposes of Section
3(f) of the Agreement:



 


		(A)	Counterparty is a “United States person” as such term is defined for purposes of Section
7701(a)(30) of the Internal Revenue Code.



 


		(B)	Counterparty is the beneficial owner for U.S. federal income tax purposes of the rights and obligations
specified for “Counterparty” or “Buyer” under this Confirmation.



 


		(ii)	Counterparty will be treated as having made the following covenant in connection with Section 4(a)(i)
of the Agreement:



 


		(A)	Counterparty will deliver to Dealer, promptly upon execution of this Confirmation and thereafter
at such times as reasonably requested by Dealer and as required to ensure that Dealer has, throughout the term of the Transaction,
a valid such form from Counterparty, a properly completed and executed Internal Revenue Service Form W-9 (or applicable successor
form).



 


		(iii)	Section 871(m). The Agreement shall be treated as having the following modifications:



 


		(A)	The following terms are added to Section 14 (Definitions) of the Agreement:



 


“Code”
means the United States Internal Revenue Code of 1986, as amended.


 


“Dividend
Equivalent Tax” means any tax, including withholding tax, imposed on amounts treated as dividends from sources within
the United States under Section 871(m) or the Treasury Regulations thereunder.


 




    	 	-22-	 



     

    

 


“Section
871(m)” means (i) Section 871(1) of the Code (as added by United States P.L. 111-147) before it is re-designated
as Section 871(m) of the Code by United States P.L. 111-226, (ii) Section 871(m) of the Code after Section 871(1) of the Code (as
added by United States P.L. 111-147) is re-designated as Section 871(m) of the Code by United States P.L. 111-226 and (iii) any
successor Code provision.


 


		(B)	The following is added to the end of the definition of “Indemnifiable Tax” in Section
14 (Definitions) of the Agreement:



 


“Indemnifiable
Tax” shall not include any Dividend Equivalent Tax.”


 


		(iv)	FATCA. “Indemnifiable Tax” as defined in Section 14 of the Agreement shall not
include any U.S. federal withholding tax imposed or collected pursuant to Sections 1471 through 1474 of the Code, any current or
future regulations or official interpretations thereof, any agreement entered into pursuant to Section 1471(b) of the Code, or
any fiscal or regulatory legislation, rules or practices adopted pursuant to any intergovernmental agreement entered into in connection
with the implementation of such Sections of the Code (a “FATCA Withholding Tax”). For the avoidance of doubt,
a FATCA Withholding Tax is a Tax the deduction or withholding of which is required by applicable law for the purposes of Section
2(d) of the Agreement.



 




    	 	-23-	 



     

    

 





 


Counterparty hereby
agrees (a) to check this Confirmation carefully and immediately upon receipt so that errors or discrepancies can be promptly
identified and rectified and (b) to confirm that the foregoing (in the exact form provided by Dealer) correctly sets forth
the terms of the agreement between Dealer and Counterparty with respect to the Transaction, by manually signing this Confirmation
or this page hereof as evidence of agreement to such terms and providing the other information requested herein and immediately
returning an executed copy to CorporateDerivativeNotifications@wellsfargo.com.


 


	 	Very truly yours,


 


	 	WELLS FARGO BANK, NATIONAL ASSOCIATION
	 	 	 
	 	By:	 /s/ Thomas Yates
	 	Authorized Signatory
	 	Name: Thomas Yates


 


Accepted and confirmed

as of the Trade Date:


 


	ACETO CORPORATION	 
	 	 	 
	By:	 /s/ Salvatore Guccione	 
	Authorized Signatory	 
	Name: Salvatore Guccione