8907900009 under HS Code OTHER FLOATING STRUCTURES ( FOR EXAMPLE, RAFTS, TANKS, COFFER-DAMS, LANDING-STAGES, BUOYS AND BEACONS) OTHER, 4009220009 under HS Code TUBES, PIPES AND HOSES, OF VULCANISED RUBBER OTHER THAN HARD RUBBER, WITH OR WITHOUT THEIR FITTINGS (FOR EXAMPLE, JOINTS, ELBOWS, FLANGES) - REINFORCED OR OTHERWISE COMBINED ONLY WITH METAL : WITH FITTINGS, and 8412292009 under HS Code Others were the top imported HS Codes by CHIMPOLYTEK LLC in 2021.