KALIHIM root word: lihim, meaning 'secret' kalihimsecretarykalihim ng kagawaran department secretary Sino ang kalihim ng kagawaran? Who is the department secretary? Si Estrella F. Alabastro ang kalihim ng Kagawaran ng Agham at Teknolohiya. Estrella F. Alabastro is the secretary of the Department of Science and Technology. Si Angelo T. Reyes ang kalihim ng Kagawaran ng Enerhiya.Angelo T. Reyes is the secretary of the Department of Energy.