Organization of conferences, symposiums, seminars and congresses in the field of business, trade, commerce and education; publication of books, booklets, prints, catalogs, index books, handbooks; publication of periodicals, journals, magazines, newspapers and newsletters; editing of printed matter containing pictures, other than for advertising purposes; publication of magazines and books in electronic form

CHEMICAL SUBSTANCES USED IN THE MANUFACTURE OF PLASTIC MATERIALS-NAMELY, PLASTIC MATERIALS IN THE FORM OF POWDERS, LIQUIDS, PASTES, EMULSIONS, DISPERSIONS AND PELLETS