Sadara recognized by GPCA as Operation Clean Sweep partner; first in GCC January 14, 2021 Sadara OCS Group. JUBAIL — Sadara Chemical Company (Sadara) has received a certificate from the Gulf Petrochemicals and Chemicals Association (GPCA), recognizing it as an Operation Clean Sweep (OCS) Partner, pledged to implement the OCS program for achieving zero plastic resin loss. The OCS program is an initiative of the American Chemistry Council (ACC) and Plastics Industry Association (PLASTICS), involving the participation of more than 60 countries around the world. It is designed to help plastics industry operations reduce the accidental loss into the environment of pellets, flakes and powder throughout processing facilities and across the entire supply chain.