Each Purchaser represents and warrants that (a) this Agreement has been duly authorized by such Purchaser and duly executed and delivered by or on behalf of such Purchaser; (b) this Agreement constitutes a legal, valid and binding agreement of such Purchaser, enforceable against such Purchaser in accordance with its terms except as may be limited by (i) the effect of bankruptcy, insolvency, reorganization, moratorium or other similar laws relating to or affecting the rights or remedies of creditors or (ii) the effect of general principles of equity, whether enforcement is considered in a proceeding in equity or at law and the discretion of the court before which any proceeding therefor may be brought; (c) such Purchaser has received a copy of the Company’s prospectus dated February 1, 2016 included in the Company’s shelf registration statement on Form S-3 (File No. 333-208953), including exhibits, financial statements, schedules and documents incorporated by reference therein, as amended, and the prospectus supplement dated November 30, 2016 specifically relating to the Shares (collectively, the “ Prospectus ”), and (d) such Purchaser has made its investment decision independently, based on the information in the Prospectus, and not based on any other information provided by the Company or CSCA Capital Advisors LLC (the “ Placement Agent ”), or any recommendation of the Placement Agent. Further, as of the date hereof and after giving effect to the transaction contemplated hereby, such Purchaser, together with any persons that would be deemed with the Purchaser to be a “group” for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, do not own directly or indirectly more than 9.8% of the issued and outstanding capital stock of the Company. Each Purchaser expressly acknowledges that the provisions of the Company’s Articles of Incorporation, as amended or supplemented (the “ Charter ”), contain limitations on such Purchaser’s ownership of the Company’s capital stock, which, among other things, prohibit the direct or indirect ownership of more than 9.8% of the Company’s outstanding capital stock and, in the event the shares of capital stock acquired by a Purchaser pursuant to this Agreement or otherwise exceed such limits, give the Company certain repurchase rights on the terms set forth in the Charter and result in the conversion of certain shares of capital stock held by such Purchaser into excess stock which will be held for the benefit of a charitable beneficiary on the terms set forth in the Charter.