Industrial chemicals; Plastics, unprocessed; Artificial resins, unprocessed; Acrylic resins, unprocessed; Epoxy resins, unprocessed; Catalysts; Adhesives for industrial purposes; Epoxy resin (unprocessed) namely semiconductor encapsulants and semiconductor encapsulation materials; Chemicals namely infrared absorbers and infrared absorbing agents; Chemicals namely thermal colouring compositions and colour developers.