The proper law of this Contract shall be the law in force in the Philippines. Any litigation between the parties that may arise out of or in connection with this Contract or the breach thereof or the performance of work thereunder shall be determined in the Courts of Quezon City, except as may be otherwise specifically provided in these Contract Documents. At or before the time of execution of the Contract, Contractor shall notify NIA in writing upon whom process may be served in connection with any litigation. The Courts of Quezon City shall be deemed to have obtained jurisdiction to render valid judgements upon Contractor by such service.