Chemical Technician (1 Male) - Graduate of B.S. Chemistry / Chemical Engineer with PRC license. Chemical Technician (1 Male) - Graduate of B.S. Chemistry / Chemical Engineer with PRC license. Chemical Technician (1 Male) - Graduate of B.S. Chemistry / Chemical Engineer with PRC license. Chemical Technician (1 Male) - Graduate of B.S. Chemistry / Chemical Engineer with PRC license.