Dispute Resolution. In the case of a dispute as to the determination of the Conversion Price, Conversion Amount, any prepayment amount or Default Amount, Default Sum, Closing or Maturity Date, the closing bid price, or fair market value (as the case may be) or the arithmetic calculation of the Conversion Price or the applicable prepayment amount(s) (as the case may be), the Borrower or the Holder shall submit the disputed determinations or arithmetic calculations via facsimile # within two (2) Business Days after receipt of the applicable notice giving rise to such dispute to the Borrower or the Holder or # if no notice gave rise to such dispute, at any time after the Holder learned of the circumstances giving rise to such dispute. If the Holder and the Borrower are unable to agree upon such determination or calculation within two (2) Business Days of such disputed determination or arithmetic calculation (as the case may be) being submitted to the Borrower or the Holder, then the Borrower shall, within two (2) Business Days, submit via facsimile # the disputed determination of the Conversion Price, the closing bid price, the or fair market value (as the case may be) to an independent, reputable investment bank selected by the Borrower and approved by the Holder or # the disputed arithmetic calculation of the Conversion Price, Conversion Amount, any prepayment amount or Default Amount, Default Sum to an independent, outside accountant selected by the Holder that is reasonably acceptable to the Borrower. The Borrower shall cause at its expense the investment bank or the accountant to perform the determinations or calculations and notify the Borrower and the Holder of the results no later than ten (10) Business Days from the time it receives such disputed determinations or calculations. Such investment bank’s or accountant’s determination or calculation shall be binding upon all parties absent demonstrable error.

Interest on the Outstanding Principal Balance shall be calculated by multiplying # the actual number of days elapsed in the period for which the calculation is being made by # a daily rate based on a three hundred sixty (360) day year (that is, the Interest Rate or the Default Rate, as then applicable, expressed as an annual rate divided by 360) by # the Outstanding Principal Balance. The accrual period for calculating interest due on each Payment Date shall be the Interest Period in which such Payment Date falls. ​ understands and acknowledges that such interest accrual requirement results in more interest accruing on the Loan than if either a thirty (30) day month and a three hundred sixty (360) day year or the actual number of days and a three hundred sixty-five (365) day year were used to compute the accrual of interest on the Loan. The following additional provisions shall apply and, subject to [Section 2.2.3] hereof, the Interest Rate shall be determined in accordance with this [Section 2.2.2]. Subject to a replacement of Term

The exact methodology used in determining such monthly credits and interest thereon will be established from time to time by the Plan Administrator. General guidelines to be followed are:

Basic Calculation. Subject to Section 3.5, Section 3.6, and Section 4.1, the short-term incentive compensation earned by each Participant during a Plan Year will equal the product of # such Participant’s target incentive amount, as determined in accordance with Section 3.2, # the Business Performance Factor established for such Participant, and # such Participant’s Individual Performance Multiplier.

Calculation Agent. Dealer; provided that, following the occurrence of an Event of Default pursuant to [Section 5(a)(vii)] of the Agreement with respect to which Dealer is the Defaulting Party, Counterparty shall have the right to designate a nationally recognized third-party dealer in over-the-counter corporate equity derivatives to act, during the period commencing on the date such Event of Default occurred and ending on the Early Termination Date with respect to such Event of Default, as the Calculation Agent with respect to the Transactions under this Master Confirmation, and the parties hereto shall work in good faith to execute appropriate documentation required by such third-party dealer. Following any determination, calculation or adjustment by the Calculation Agent hereunder, upon a written request by Counterparty, the Calculation Agent will promptly (but in any event no later than the earlier of # the time at which Counterparty becomes obligated to make any payment or delivery or take any other action as a result of such determination, calculation or adjustment and # the date five (5) Exchange Business Days following the date of such determination, calculation or adjustment) provide to Counterparty by e-mail to the e-mail address provided by Counterparty in such written request a report (in a commonly used file format for the storage and manipulation of financial data without disclosing any proprietary models of the Calculation Agent or other information that is or is reasonably likely to be proprietary or subject to contractual, legal or regulatory obligations not to disclose such information) displaying in reasonable detail the basis for such determination, calculation or adjustment, as the case may be. Whenever the Calculation Agent is required or permitted to exercise discretion in any way, it will do so in good faith and in a commercially reasonable manner.

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)].

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. The Holders of the Series D 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.