Hydrofluoric acid; fluorspar compounds; sulphates; refrigerants for use in the refrigeration and air conditioning industries; refrigerating preparations for use in the refrigeration and air conditioning industries; fluorine; methane; chloromethane-d3 gas; dichloromethane; tetrachlorides; calcined soda; unprocessed plastics; unprocessed synthetic resins for use in the chemical, aerospace, electrical, electronic, communication wire, communication cable, mechanical, medical, and pharmaceutical industries; chloroform; unprocessed silicon plastics; ion-exchanger resins; chemicals in the nature of ion exchangers for the chemical, automobile, and chlorine industries; chemicals in the nature of ion exchangers for use in the preparation of ion exchange conductive membrane electrolysis units, fuel cell ion membranes, super-acid catalysts used in organic synthesis, and hyperstability ion exchangers