28112200 under HS Code OTHER INORGANIC ACIDS AND OTHER INORGANIC OXYGEN COMPOUNDS OF NON-METALS - OTHER INORGANIC OXYGEN COMPOUNDS OF NON-METALS : SILICON DIOXIDE, 40012100 under HS Code NATURAL RUBBER, BALATA, GUTTA-PERCHA, GUAYULE, CHICLE AND SIMILAR NATURAL GUMS, IN PRIMARY FORMS OR IN PLATES, SHEETS OR STRIP - NATURAL RUBBER IN OTHER FORMS : SMOKED SHEETS, and 40012900 under HS Code Others were the top imported HS Codes by I B INTERNATIONAL LEATHER GARMENTS in 2021.