87 indicated that 3TG is present in certain of their products or materials, but did not provide specific information as to the origin of the products and materials containing 3TG that they supply to us. Rather, they merely advised us as to the smelters from which 3TG used in any of their products or materials originated (whether or not the 3TG originating with a particular smelter was included in the specific products or materials they supplied to us).