IMI's associate company, Synthetic Materials(SYNMAT), is the largest producer of synthetic qypsum in the United States with production exceeding 1,500,000 tons per year.
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		IMI has marketed over 3,500,000 metric tons per year of natural and synthetic qypsum, cement, clinker, granulated blast furnace slag, bauxite, limestone, pet coke, coal, aggregates, industrial & food grade salt.