Standard Classification of Goods (SCG) 2001
- V - Mineral products
- 26 - Ores, slag and ash
- 2621 - Other slag and ash, including seaweed ash (kelp)
- 262100 - Other slag and ash, including seaweed ash (kelp)
- 26210010 - Fly ash
- 26210020 - Silica fume
- 26210090 - Other
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