Doing some research and came across this info...If you want the real truth on this issue, please visit NAIMA.org or the Department of Energy or the EPA website....rockwool is not and has never contained asbestos, nor has asbstos been used in the manufacturing of...rockwool is completely 100% inorganic no chemicals added..made from rock and steel...our particular product is manufactured in Nolanville, TX...we manufacture a loose fill spray in the walls and blow in the attic insulation. The rock is mined in south Texas and we get our recycled steel from a company in Texas. You can also go to a website called ICC ES Legacy. It is a third party reporting agency that is very trusted in the industry. Our website is www.amerrock.com we have a couple of videos that will explain how our product is manufactured and installed..the site also has some still shots of installed material and lots of other information...feel free to contact me..either by phone or thru this email..214.263.4195..thank you