Unless both parties have signed this Agreement within five (5) business days of the date listed above, this Agreement

Acceptance of Agreement. Employee may accept this Agreement only by signing, dating and delivering the Agreement to the Company (in the manner set forth in Section 12) on or before the Company’s normal close of business on ​ ​, 20​. Time is of the essence with regard to this Section 3.

Acceptance; Consideration of Agreement. Executive further acknowledges that he has been provided twenty-one (21) days to consider and accept this Agreement from the date it was first given to him, although he may accept it at any time within those twenty-one (21) days.

Acceptance. The Optionee hereby acknowledges receipt of a copy of the Plan and this Agreement. The Optionee has read and understands the terms and provisions thereof, and accepts the Option subject to all of the terms and conditions of the Plan and this Agreement. The Optionee acknowledges that there may be adverse tax consequences upon exercise of the Option or disposition of the underlying shares and that the Optionee should consult a tax advisor prior to such exercise or disposition.

Acceptance. If you decide to accept our offer, please sign the enclosed copy of this letter in the space indicated and return it to me. This offer will expire at 5:00 PM on August 4, 2017. Before joining the Company you will be required to sign the Company’s Standard Agreement Regarding Inventions, Confidentiality and Non-competition. You will also be required to pass a standard background check. Your signature will acknowledge that you have read and understood and agreed to the terms and conditions of this offer letter and the attached documents, if any. Should you have anything else that you wish to discuss, please do not hesitate to call me.

Acceptance. This offer will remain open until August 27thh, 2015. If you decide to accept our offer, and I hope you will, please sign the enclosed copy of this letter in the space indicated and return it to me. Your signature will acknowledge that you have read and understood and agreed to the terms and conditions of this offer letter and the attached documents, if any. Should you have anything else that you wish to discuss, please do not hesitate to call me.

ACCEPTANCE. Receipt of this Warrant by the Holder shall constitute acceptance of and agreement to all of the terms and conditions contained herein.

Acceptance. Participant hereby acknowledges that he has read and understands the terms and provisions of this Agreement, and accepts the Award subject to all the terms and conditions of the Plan and this Agreement. Participant has had an opportunity to obtain the advice of legal counsel prior to executing this Agreement. Participant acknowledges that there may be adverse tax consequences upon exercise of this Award and disposition of the Shares, and that Participant should consult a tax advisor prior to such exercise or disposition. Participant attests that he is relying solely on such advisors and not on any statements or representations of the Plan Administrator, the Company, or any Affiliate, or any agents thereof. Further, Participant hereby acknowledges and understands that he (and not the Company) shall be solely responsible for his tax liability that may arise as a result of receiving this Award Agreement.

Grantee Acceptance. The Grantee shall signify acceptance of the terms and conditions of this Agreement and acknowledge receipt of a copy of the Plan by signing in the space provided below and returning the signed copy to the Company.

Acceptance Fee. An acceptance fee (the “Acceptance Fee”) shall be payable by the Canadian Borrowers to each Canadian Lender and each Canadian Lender shall deduct the amount of such Acceptance Fee from the BA Discount Proceeds (in the manner specified in [Section 2.19(a)(vii)] in respect of each Bankers’ Acceptance), said fee to be calculated at a rate per annum equal to the Applicable Rate calculated on the face amount of such Bankers’ Acceptance and computed on the basis of the number of days in the term of such Bankers’ Acceptance and a year of 365 days.