Payment of Principal. The principal amount of this Note shall be paid to the Holder on or prior to the Maturity Date. The Company and the Holder have agreed that the principal amount of US$730,000 (United States Dollar: Seven Hundred Thirty Thousand Dollars) is equivalent to SGD$1,000,000 (Singapore Dollar: One Million Dollars) and that the Company shall repay the principal amount of this Note in Singapore Dollars which is fixed at SGD$1,000,000.

Principal Trade Names. The Company shall not Dispose of any Principal Trade Name.

Principal Market Regulation. Notwithstanding any other provision of this Note, the Company shall not issue any shares of Common Stock upon conversion of this Note if the issuance of such shares of Common Stock would exceed the aggregate number of shares of Common Stock which the Company may issue upon conversion without breaching the Company’s obligations under the rules or regulations of the Nasdaq Capital Market, except that such limitation shall not apply in the event that the Company: # obtains the approval of its stockholders as required by the applicable rules of the Nasdaq Capital Market for issuances of shares of Common Stock in excess of such amount, or # obtains a written opinion from outside counsel to the Company that such approval is not required, which opinion is reasonably satisfactory to the Holder.

Principal Market Limitation. Notwithstanding anything to the contrary in this Warrant Agreement, unless and until the Requisite Stockholder Approval is obtained, # without the prior written consent of each affected Holder, neither the Parent nor the Company will effect any transaction or otherwise take any action that would result in an adjustment to the Strike Price or the Warrant Entitlement in a manner that, following such adjustment, approval of the Parent’s stockholders would be required in order for the Parent to satisfy the Exchange Right with respect to the maximum number of Partnership Units issuable upon exercise of all outstanding Warrants in shares of Common Stock, and # in no event shall any shares of Common Stock be delivered in satisfaction of such Exchange Right in an amount or at such prices as would be in contravention of applicable listing standards of the New York Stock Exchange, including New York Stock Exchange Listing Rule 312.03 (or any successor rules).

Principal Place of Employment. The Executive’s principal place of employment during the Term shall be at the Company’s office located at 835 Innovation Drive, Knoxville, Tennessee 37932. The Company may transfer the Executive’s place of employment; provided, however, that the Company shall receive the Executive’s written consent before planning or effectuating any such transfer.

Principal Place of Business. The principal place of business of the Partnership shall be at [[Address A:Address]]. The General Partner may change the principal place of business or establish such other place or places of business for the Partnership as it may, from time to time, deem necessary or appropriate, provided however, that the General Partner shall give the Limited Partners notice of any change of address of the principal place of business of the Partnership at least ten (10) days prior to any such change.

All or any portion of the outstanding principal amount of this Note shall be convertible into shares of Common Stock at a price of Six and 25/100 Dollars ($6.25) per share (the “Conversion Price”), at the option of the Investor, at any time and from time to time. For the avoidance of doubt, any remaining unconverted principal amount remains payable in cash. The Investor may effect conversions under this Section 9, by delivering to the [[Organization A:Organization]] a written notice in the form attached hereto as Exhibit A (each, a “Conversion Notice”) together with a schedule in the form attached hereto as [Schedule 1] (each, a “Conversion Schedule”). With respect to each conversion hereunder, the date the applicable Conversion Notice together with the applicable Conversion Schedule is delivered to the [[Organization A:Organization]] in accordance with this Section 9(a) is referred to herein as a “Conversion Date.”

Principal and Interest Payments. Borrower shall make thirty (30) consecutive equal monthly installments of principal and accrued but unpaid interest with respect to the Growth Capital Term Loan Advances, commencing March 1, 2015 (the “Conversion Date”) and continuing on the first (1st) day of each month thereafter (each, a “Growth Capital Term Loan Payment”), which would fully amortize the outstanding Growth Capital Term Loan Advances, as of the Conversion Date, over the Repayment Period. All unpaid principal and accrued and unpaid interest is due and payable in full on the Growth Capital Term Loan Maturity Date.

Company Acting on Behalf of Itself and Subsidiary Borrower. Whether or not expressly provided herein, each notice or certificate delivered hereunder or in connection herewith or the other Loan Documents by or to the Company (in its capacity as a Borrower) or an officer thereof, and each notice or consent requested by or from the Company (in its capacity as a Borrower) or an officer thereof, shall be so delivered or given to, by or on behalf of the Company for the benefit of itself and the Subsidiary Borrower. In furtherance and without limitation of the foregoing, the Company is hereby authorized and given a power of attorney by and on behalf of the Subsidiary Borrower to perform and accept any and all such actions on its behalf under this Agreement and the other Loan Documents.

any defense based upon any lack of authority of the officers, directors, partners or agents acting or purporting to act on behalf of any other Borrower or any principal of any other Borrower or any defect in the formation of any other Borrower or any principal of any other Borrower;