The secondary research process involved comprehensive analysis of regulatory databases, industry publications, mining & mineral processing journals, and authoritative industrial organizations. Key sources included the US Geological Survey (USGS) Mineral Commodity Summaries, European Commission Directorate-General for Internal Market, Industry, Entrepreneurship and SMEs (GROW), Occupational Safety and Health Administration (OSHA), Food and Drug Administration (FDA) Center for Food Safety and Applied Nutrition, European Chemicals Agency (ECHA), International Agency for Research on Cancer (IARC), National Institute for Occupational Safety and Health (NIOSH), US Environmental Protection Agency (EPA), European Food Safety Authority (EFSA), Cosmetics Europe – The Personal Care Association, Plastics Industry Association (PLASTICS), TAPPI (Technical Association of the Pulp and Paper Industry), Indian Bureau of Mines, China Ministry of Natural Resources, British Geological Survey (BGS), World Mining Data (Austrian Federal Ministry of Agriculture, Forestry, Regions and Water Management), and national mining ministry reports from key talc-producing markets including China, India, Brazil, France, and the United States.
These sources were used to collect mineral production statistics, regulatory safety assessments, industrial consumption data, trade flow analysis, and market landscape evaluation for powdered talc, talc slurry, and talc granules across plastics, paper, cosmetics, rubber, food processing, pharmaceutical, and construction applications.