CHEMICALS FOR USE IN THE MANUFACTURE OF PAPER, PAPERBOARD AND PULP; CHEMICALS USED IN OIL AND GAS DRILLING AND PRODUCTION; CHEMICALS FOR USE IN THE WATER TREATMENT, MINING, METAL EXTRACTION, METALWORKING, AND MINERAL PROCESSING INDUSTRIES; CLAYS, SURFACTANTS, POLYELECTROLYTES, RESINS AND RETENTION AIDS; NAMELY, POLYMERS AND POLYMER TREATED CLAYS, ALL FOR USE IN THE PULP, PAPER AND PAPERBOARD INDUSTRIES