The Board of Directors shall have authority, without shareholder approval and by resolution of the Board of Directors, to amend the Corporation's Articles of Incorporation to divide the class of Preferred Stock into series, to designate each such series by a distinguishing letter, number or title so as to distinguish the shares thereof from the shares of all other series and classes, and to fix and determine the relative rights and preferences of the shares of each series so established, including # voting power, # the rate of dividend, # the price at which, and the terms and conditions on which, the shares may be redeemed, # the amount payable upon the shares in the event of liquidation, # any sinking fund provision for the redemption or purchase of the shares, and # the terms and conditions on which the shares may be converted to shares of another series or class, if the shares of any series are issued with the privilege of conversion.

Conversion. After the Original Issue Date until this Note is no longer outstanding, this Note shall be convertible, in whole or in part, at any time, and from time to time, into Conversion Shares at the option of the Holder. The Holder shall effect conversions by delivering to the [[Organization A:Organization]] a Notice of Conversion, the form of which is attached hereto as Annex A (each, a “Notice of Conversion”), specifying therein the principal amount of this Note to be converted and the date on which such conversion shall be effected (such date, the “Conversion Date”). If no Conversion Date is specified in a Notice of Conversion, the Conversion Date shall be the date that such Notice of Conversion is deemed delivered hereunder. No ink-original Notice of Conversion shall be required, nor shall any medallion guarantee (or other type of guarantee or notarization) of any Notice of Conversion form be required. To effect conversions hereunder, the Holder shall not be required to physically surrender this Note to the [[Organization A:Organization]] unless the entire principal amount of this Note, plus all accrued and unpaid interest thereon and other charges, has been so converted. Conversions hereunder shall have the effect of lowering the outstanding principal amount of this Note in an amount equal to the applicable conversion. The Holder and the [[Organization A:Organization]] shall maintain records showing the principal amount(s) converted in each conversion, the date of each conversion, and the Conversion Price in effect at the time of each conversion. The [[Organization A:Organization]] may deliver an objection to any Notice of Conversion within two Trading Days (or the Standard Settlement Period as defined in the Purchase Agreement if a lessor period) of delivery of such Notice of Conversion. In the event of any dispute or discrepancy, the records of the Holder shall be controlling and determinative in the absence of manifest error. The Holder, and any assignee by acceptance of this Note, acknowledge and agree that, by reason of the provisions of this paragraph, following conversion of a portion of this Note, the unpaid and unconverted principal amount of this Note may be less than the amount stated on the face hereof

Conversion. In the event that the Loans become immediately due and payable on any date pursuant to Article VI or upon an Event of Default of the type described in [clause (h) or (i) of Section 6.01]1] with respect to ​, all amounts # that ​ is at the time or thereafter becomes required to reimburse or otherwise pay to the Administrative Agent in respect of LC Disbursements made under any Foreign Currency Letter of Credit (other than amounts in respect of which ​ has deposited cash collateral pursuant to paragraph # above, if such cash collateral was deposited in the applicable Foreign Currency to the extent so deposited or applied), # that ​ are at the time or thereafter become required to pay to the Administrative Agent and the Administrative Agent is at the time or thereafter becomes required to distribute to an Issuing Bank pursuant to paragraph # of this Section in respect of unreimbursed LC Disbursements made under any Foreign Currency Letter of Credit and # of each Lender’s participation in any Foreign Currency Letter of Credit under which an LC Disbursement has been made shall, automatically and with no further action required, be converted into the Dollar Amount, calculated using the Administrative Agent’s Exchange Rates on such date (or in the case of any LC Disbursement made after such date, on the date such LC Disbursement is made), of such amounts. On and after such conversion, all amounts accruing and owed to the Administrative Agent, any Issuing Bank or any Lender in respect of the obligations described in this paragraph shall accrue and be payable in Dollars at the rates otherwise applicable hereunder.

Conversion. Borrower may convert LIBOR Rate Loans to Base Rate Loans at any time; provided, that in the event that LIBOR Rate Loans are converted or prepaid on any date that is not the last day of the Interest Period applicable thereto, including as a result of any prepayment through the required application by Agent of any payments or proceeds of Collateral in accordance with [Section 2.4(b)] or for any other reason, including early termination of the term of this Agreement or acceleration of all or any portion of the Obligations pursuant to the terms hereof, Borrower shall indemnify, defend, and hold Agent and the Lenders and their Participants harmless against any and all Funding Losses in accordance with [Section 2.12] (b)(ii).

Conversion. On the Conversion Date, each outstanding share of Series A Preferred Stock shall be converted automatically into fully paid and nonassessable shares of Common Stock (the "Conversion"). The number of shares of Common Stock to which a holder of Series A Preferred Stock shall be entitled upon the Conversion shall equal the product obtained by # multiplying the number of Fully-Diluted Common Shares by three-sevenths (3/7), then # multiplying the result by a fraction (the “Adjustment Number”), the numerator of which will be the number of shares of Series A Preferred Stock being converted and the denominator of which will be the number of issued and outstanding shares of Series A Preferred Stock. The term “Fully-Diluted Common Shares” means the sum of the outstanding Common Stock plus all shares of Common Stock that would be outstanding if all securities that could be converted into Common Stock without additional consideration were converted on the Conversion Date, but shall not include Common Stock issuable on conversion of the Series A Preferred Stock.

Conversion. Upon the occurrence of a Liquidity Event, the Holder shall have the right, at the Holder’s option, to convert this Note in whole or in part, including any of its outstanding principal amount and any unpaid accrued interest and any fees and any and all other outstanding amounts owing thereon, in each case, on the Conversion Date, into Conversion Shares by following the mechanics of conversion set forth in [Section 4(b)].

Conversion. The Holders of the Series C Preferred Stock shall have conversion rights as follows (the “Conversion Rights”):

Commencing on the date hereof , the Holder may at any time prior to 5:00 p.m., Pittsburgh time, on December 20, 2024, convert the principal amount of this Note or any portion of the original principal amount outstanding under this Note on the date of its initial issuance (unless such amount is the only amount then remaining outstanding under this Note in which event the conversion of the remaining principal amount then outstanding shall be permitted) into fully paid and nonassessable shares of the Borrowers restricted Common Stock, par value $.0001 per share (the “Common Stock”), on the basis of one share of such stock for each $ Twenty Cents ($.20) (the “Conversion Price”) in principal amount and any accrued but unpaid interest of this Note. Such conversion shall be effected by the surrender of this Note at the principal office of the Borrower (or such other office or agency of the Borrower in the continental United States as the Borrower may designate by notice in writing to the Holder) at any time during usual business hours, together with notice in writing that the Holder wishes to convert a portion or all of this Note, which notice shall also state the name(s) (with addresses) and denominations in which the certificate(s) for Common Stock shall be issued and shall include instructions for delivery thereof. Such conversion shall be deemed to have been effected as of the close of business on the date on which this Note shall have been surrendered and such notice shall have been received, and at such time (the “Voluntary Conversion Date”) the rights of the Holder with respect to the principal amount of the Note converted shall cease and the person(s) in whose name(s) any certificate(s) for Common Stock are to be issued upon such conversion shall be deemed to have become the holder or holders of record of the shares of Common Stock represented by such certificate(s). As soon as practicable after the Voluntary Conversion Date, the Borrower shall deliver to, or as directed by, the Holder, certificates representing the number of shares of Common Stock issuable by reason of such conversion registered in such name or names and such denomination or denominations as the Holder shall have specified, together with cash as provided in [Section 8] in respect of any fraction of a share of such stock otherwise issuable upon such conversion. The Borrower shall also make payment to the Holder of accrued interest to the date of conversion on the portion of the Note converted in accordance with the manner of payment provisions of Section 1 of this Note. In each case of conversion of this Note in part only, the Borrower shall receive and hold this Note as a fiduciary agent of the Holder, shall endorse on this Note the date and amount of this Note so converted, and such amount shall be deemed no longer outstanding. Upon such endorsement, the Borrower shall promptly return this Note to the Holder.

In addition to any other rights of conversion set forth herein, in the event a Make-Whole Acquisition occurs, each Holder shall have the right, at such Holder’s option, to convert all or any portion of such Holder’s shares of Series B Preferred Stock into shares of Common Stock during the period (the “Make-Whole Acquisition Conversion Period”) beginning on the effective date of the Make-Whole Acquisition (the “Make-Whole Acquisition Effective Date”) and ending on the date that is 30 calendar days after the Make-Whole Acquisition Effective Date at the Applicable Conversion Rate, plus a number of additional shares of Common Stock (the “Additional Shares”) determined pursuant to Subdivision 14(l)(ii), plus cash in lieu of fractional shares, plus an amount equal to any accrued and unpaid dividends on the shares of Series B Preferred Stock so converted through the date of such conversion, subject to compliance with the conversion procedures set forth in Subdivision 14(i).

Section # Voluntary Conversion of Cash Compensation. A Non-Employee Director may elect, at such time and in such manner as the Committee may prescribe, that all or any portion of his or her compensation for Service on the Board and its committees that, after the application of Section 5.1, is payable in cash be converted into and distributed to the Eligible Director in Shares of equivalent Fair Market Value. Notwithstanding the preceding, fractional Shares will not be payable under this Section 5.2 and any cash relating to a conversion that would result in a fractional Share shall instead be paid to the Eligible Director. The Committee shall determine the dates and frequency of such conversion and distribution. Shares distributed under this Section 5.2 shall be fully vested and nonforfeitable. Unless an Eligible Director requests otherwise, with the Committee’s consent, or the Committee determines otherwise, Share payments under this Section 5.2 shall be effected by direct registration of the Shares in a book-entry account on the Corporation’s stock transfer records established for the Eligible Director by the Corporation’s transfer agent.