1 fluorspar by m michael miller traditionally has been considered the environmental protection agency illinois was only state reporting mine vital to nation for both national security and issued final rule on its program production in 1994 accounted 100 of economic reasons it is used directly or evaluating regulating substitutes ozone all reported us shipments specific data indirectly manufacture products such as depleting chemicals being phased out under grade are aluminum gasoline insulating foams stratospheric provisions withheld avoid disclosing company refrigerants steel uranium fuel most clean air act caa section 612 proprietary consumption trade involves either authorized identify ozark mahoning co s largest acid which greater than 97 calcium restrict use class i producer a subsidiary elf fluoride metallurgical ii substances where atochem north america inc operated three less determined that alternatives exist reduce mines flotation plant
