The secondary research process involved a thorough examination of regulatory databases, industry publications, chemical manufacturing standards, and authoritative trade organizations. The US Environmental Protection Agency (EPA), the European Chemicals Agency (ECHA), the Occupational Safety and Health Administration (OSHA), the National Institute for Occupational Safety and Health (NIOSH), the American Coatings Association (ACA), the European Printing Ink Association (EuPIA), the Specialty Graphic Imaging Association (SGIA), the Federation of European Screen Printers Associations (FESPA), the US Census Bureau - Manufacturing Statistics, the Eurostat Industrial Production Database, the International Trade Centre (ITC) Trade Map, the World Customs Organization (WCO) Harmonized System, the National Center for Biotechnology Information (NCBI/PubMed) for occupational health studies, the CDC National Institute for Occupational Safety and Health, the World Health Organization (WHO) Chemical Safety Program, the OECD Chemicals and Biotechnology Committee, and national environmental protection agency reports from key manufacturing markets were all important sources. These sources were used to gather information on production, compliance with regulations, chemical safety, environmental rules (VOC emissions, REACH, RoHS), trends in substrate compatibility, and the state of the market for UV-cured, water-based, solvent-based, and plastisol ink technologies in textiles, electronics, cars, and packaging.