This document is a work reference letter for Mr. Kamran Yousaf from D.G. Khan Cement Company Limited. It certifies that Mr. Yousaf worked as an Electrical Engineer from 2011 to 2013. It describes his responsibilities, which included working with PLC and DCS systems, control system programming, data acquisition, fiber optic installation, SCADA programming, and participating in shutdown and maintenance activities. The letter recommends Mr. Yousaf as a versatile electrical engineer and wishes him good luck in his future endeavors.