Employment Letter between the Registrant and Quentin J. Clark

Employee Benefits. You also will continue to be eligible to participate in all of the Company benefit plans and programs in effect for similarly-situated employees during your employment. In addition, the Company will continue to provide you a monthly travel stipend

Arbitration. You and the Company shall submit to mandatory and exclusive binding arbitration any and all controversies or claims arising out of, or relating to, your employment with the Company and the termination thereof, including but not limited to, claims for unpaid wages, wrongful termination, torts, stock or stock options or other ownership interest in the Company, and/or discrimination (including harassment) based upon any federal, state or local ordinance, statute, regulation or constitutional provision. The sole exception are claims under applicable workers’ compensation law, unemployment insurance claims, actions seeking provisional remedies pursuant to California Code of Civil Procedure Section 1281.8 and other claims expressly prohibited by law from being subject to binding arbitration for which ether party may seek direct court intervention. THE PARTIES HEREBY WAIVE ANY RIGHTS THEY MAY HAVE TO TRIAL BY JURY IN REGARD TO SUCH CLAIMS. You and the Company agree that the arbitrator shall have the sole authority to determine the arbitrability of all claims. This Agreement does not restrict your right to file administrative claims you may bring before any government agency where, as a matter of law, the parties may not restrict the employee’s ability to file such claims (including, but not limited to, the National Labor Relations Board, the Equal Employment Opportunity Commission, and the Department of Labor). However the parties agree that, to the fullest extent permitted by law, arbitration shall be the exclusive remedy for the subject matter of such administrative claims. Such arbitration shall be governed by the Federal Arbitration Act and conducted through the American Arbitration Association in the State of California, San Francisco County, before a single neutral arbitrator, in accordance with the employment arbitration rules in effect at that time. The AAA Employment Arbitration Rules and Mediation may be found and reviewed at http://www.adr.org and click on “Rules and Procedures.” If you are unable to access these rules, please let me know and I will provide you a hardcopy. The arbitrator shall issue a written decision that contains the essential

Protected Activity Not Prohibited. Nothing in this Agreement or in any other agreement between you or the Company, as applicable, will in any way limit or prohibit you from engaging for a lawful purpose in any Protected Activity. For purposes of this Agreement, “Protected Activity” means filing a charge or complaint, or otherwise communicating, cooperating, or participating with, any state, federal, or other governmental agency, including but not limited to the U.S. Securities and Exchange Commission, the Equal Employment Opportunity Commission, and the National Labor Relations Board. Notwithstanding any restrictions set forth in this Agreement or in any other agreement between you or the Company, as applicable, you understand that you are not required to obtain authorization from the Company prior to disclosing information to, or communicating with, such agencies, nor are you obligated to advise the Company as to any such disclosures or communications. In making any such disclosures or communications, you agree to take all reasonable precautions to prevent any unauthorized use or disclosure of any information that may