Ash and slag NESOI, including seaweed ash (kelp); ash and residues from the incineration of municipal waste (HS 2621): who makes and trades it

US exports of ash and slag nesoi, including seaweed ash (kelp); ash and residues from the incineration of municipal waste were US$29.1M in 2025, led by Washington (35%).

Canadian exports of ash and slag nesoi, including seaweed ash (kelp); ash and residues from the incineration of municipal waste were C$13.4M in 2025, led by British Columbia (44%).

Sources: U.S. Census Bureau; Statistics Canada; Statistics Canada (Bank of Canada rates). Loading the interactive map…