3918109000 under HS Code FLOOR COVERINGS OF PLASTICS, WHETHER OR NOT SELF - ADHESIVE, IN ROLLS OR IN THE FORM OF TILES; WALL OR CEILING COVERINGS OF PLASTICS, AS DEFINED IN NOTE 9 TO THIS CHAPTER - OF POLYMERS OF VINYL CHLORIDE :OTHER, 3921190000 under HS Code OTHER PLATES, SHEETS, FILM, FOIL AND STRIP, OF PLASTICS - CELLULAR : OF OTHER PLASTICS, and 4418750000 under HS Code Others were the top imported HS Codes by RIKON GROUP LLC in 2021.