Phosphate Slag Construction Fill
Granular phosphate fertilizer production slag used as structural fill and pipe bedding in construction. Falls under 2517.20.00.00 as macadam of similar industrial waste.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing fertilizer minerals
Mineral fertilizers classified by nutrient content, not aggregate use.
If unprocessed earths/ores
Chapter 25 mineral substances for other than construction.
If phosphorus chemical production slag
Specific chemical industry waste headings take precedence.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Radioactivity screening certificates required for phosphate slag imports
• Gradation curve documentation essential for engineering specification compliance
• Neutralization treatment proof prevents acidic soil reaction claims
Related Products under HTS 2517.20.00.00
Slag Macadam for Road Base
Crushed slag from steel production processed into macadam aggregate for road construction base layers. Classified under HTS 2517.20.00.00 as macadam of slag, a common industrial waste material used directly in road metalling without further processing beyond crushing.
Steel Slag Road Ballast
Granular steel slag macadam designed for railway ballast and highway shoulders, incorporating dross fines. Falls under 2517.20.00.00 as macadam from industrial waste suitable for railway ballast per heading description.
Copper Smelter Dross Macadam
Macadam produced from copper smelter dross and slag, used in secondary road construction and parking lot bases. HTS 2517.20.00.00 covers dross as similar industrial waste whether or not mixed with other aggregates.
Blast Furnace Slag Aggregate
Crushed blast furnace slag macadam for concrete sub-base and drainage layers in road projects. Specifically classified in 2517.20.00.00 as slag-based macadam incorporating industrial waste materials.
Tarred Slag Macadam Mix
Slag macadam incorporating tar binder for dust control in temporary road surfaces. Included in HTS 2517.20.00.00 explicitly as 'tarred macadam' of slag/dross industrial waste.
Foundry Sand-Slag Macadam Blend
Macadam blending spent foundry sand with steel slag for foundry yard paving and industrial hardstandings. HTS 2517.20.00.00 includes mixtures incorporating similar industrial wastes.