CLASSIFICATION HAS BEEN DETERMINED IN ACCORDANCE WITH THE FOLLOWING :
GENERAL INTERPRETATIOVE RULES (GIR)S
GIR 1 HAS BEEN USED TO CLASSIFY THIS PRODUCT BY THE TERMS OF HEADING 2508 ; OTHER CLAYS (NOT INCLUDING EXPANDED CLAYS OF HEADING NO.6806), ANDALUSITE, KYANITE AND SILLIMANITE, WHETHER OR NOT CALCINED ; MULLITE; CHAMOTTE OR DINAS EARTHS.
GIR 6 HAS BEEN USED TO CLASSIFY THE GOODS TO SUBHEADING 250810 : BENTONITE.