8546909000 under HS Code ELECTRICAL INSULATORS OF ANY MATERIAL OTHER : OTHER, 8546200000 under HS Code Others, and 4811490000 under HS Code PAPER, PAPERBOARD, CELLULOSE WADDING AND WEBS OF CELLULOSE FIBRES, COATED, IMPREGNATED, COVERED, SURFACE-COLOURED, SURFACE-DECORATED OR PRINTED, IN ROLLS OR RECTANGULAR (INCLUDING SQUARE) SHEETS, OF ANY SIZE, OTHER THAN GOODS OF THE KIND DESCRIBED IN HEADING 4803, 4809 OR 4810- GUMMED OR ADHESIVE PAPER AND PAPERBOARD : OTHER were the top imported HS Codes by OJSC ALTAI TRANSFORMER PLANT in 2021.