. Merchant Technolgy Inc. Is the export arm of Tangram Company LLC. Tangram is one of the leading manufacturers of High Purity Inorganics Salts. For a wide varety of Industries. We mfg. To the ACS, USP, NF and HIGH PURITY Specifications. We can also perform SERVICES that include Blending, Drying, Dry Granulation, Wet Granulation, Fine Grinding, Roller Compaction, Screening and Solutions