This document is a certificate of employment and certificate of participation for Tego Sutrisno. The certificate of employment details his work for Mesitechmitra Purnabangun from October 2011 to March 2015 as a Material Control Coordinator for an Operation and Maintenance contract in Prabumulih, Sumatra. It thanks him for his efforts and wishes him success. The certificate of participation certifies that Tego Sutrisno successfully completed a Supervisory Management program held by Mesitechmitra Purnabangun from October 21-24, 2012.