69041000 under HS Code CERAMIC BUILDING BRICKS, FLOORING BLOCKS, SUPPORT OR FILLER TILES AND THE LIKE - BUILDING BRICKS, 40082900 under HS Code Others, and 69051000 under HS Code ROOFING TILES, CHIMNEY-POTS, COWLS, CHIMNEY LINERS, ARCHITECTURAL ORNAMENTS AND OTHER CERAMIC CONSTRUCTIONAL GOODS - ROOFING TILES. were the top exported HS Codes by NAM DUONG IMPORT EXPORT TRADING CO LTD in 2021.