To be granted an extension of each employment contract, the Employee shall fulfill all performance evaluation requirements in compliance with the criteria and methods stipulated in CHIANG MAI NEUROLOGICAL HOSPITAL Announcement on Employment Surety, Appraisal Criteria & Methods, and Evaluation for Institute Employee Contract Extension, B.E. 2553 (2010). In the event that the employment contract extension is allowed, the surety according to Contract No. 2 shall be still valid.