EWC Code
Wastes not otherwise specified
EUR-Lex Commission Decision 2000/532/EC — Official Journal L 226, 06/09/2000Have a 01 03 99 stream? See the dossier that replaces the feasibility study.
See the validation dossier~2 Bt/year tailings globally; EU share ~150 Mt/year · Residual metal recovery €5–50/t; tailings reuse as aggregate or backfill €3–12/t
Primary buyers include Mining of non-ferrous metal ores and Waste treatment and disposal.
Get your full stream analysisAnnual Volume (EU)
~2 Bt/year tailings globally; EU share ~150 Mt/year
Valorisation Range
Residual metal recovery €5–50/t; tailings reuse as aggregate or backfill €3–12/t
Primary Route
Tailings storage facility (TSF)
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Get contacts for EWC 01 03 99EWC 01 03 99 is a specific sub-code under EWC 01 03 — Wastes from physico-chemical processing of metalliferous minerals. The classification guidance below applies to this waste stream.
EWC 01 03 covers processing residues from the physical and chemical concentration of metalliferous ores. The primary stream is tailings — fine-grained slurry discharged after flotation, leaching or gravity concentration removes the valuable mineral. Tailings contain residual reagents, heavy metals and, where sulphide minerals are present, acid-generating potential that can trigger hazardous classification under 01 03 04*.
Other streams include dust and slimes from dry processing (01 03 06), heap leach residue and cyanide-bearing tailings from gold processing (01 03 07* if cyanide detected). The EU Tailings Dam Standard, referenced in the 2006/21/EC guidance, requires detailed characterisation of acid neutralisation potential and metal leachability before classifying tailings as non-hazardous.
Industrial symbiosis opportunities include mine backfill (paste fill reduces subsidence risk), construction material (if leachate criteria met), and secondary metal recovery from historic tailings. Rare earth and critical mineral recovery from copper and phosphate tailings is a growing niche under the EU Critical Raw Materials Act.
Typical Generators
Established valorisation pathways for EWC 01 03 99, ranked by economic value and market depth.
Engineered impoundment managed to Directive 2006/21/EC. Category A TSFs require independent stability review, emergency plan and financial guarantee. Dry-stack tailings increasingly preferred over wet impoundments following EU dam safety guidance.
Dewatered tailings mixed with cement binder pumped underground to stabilise worked-out stopes. Eliminates surface disposal, reduces subsidence liability. Requires compatibility testing between tailings chemistry and binder.
Re-processing of historic tailings using improved hydrometallurgical routes to recover copper, gold or critical minerals. Triggered when commodity prices rise above project cut-off grades for the tailings resource.
These are the established routes for EWC 01 03 99. Which one your stream qualifies for depends on its composition, volume and region.
See how this gets validatedPrimary & secondary off-takers
Generates tailings; also potential receiver for paste backfill materials
Smelters accept high-grade concentrates but may co-process some tailings fractions
Accepts tested non-hazardous tailings as sub-base fill where leachate criteria met
Specialist tailings management contractors operate TSFs and re-processing facilities
Sectors that valorise EWC 01 03 99 as an input material or secondary raw material.
Your wastes not otherwise specified stream is assessed against chemistry, waste classification and proven recovery routes — graded results in your browser in seconds. No call, no commitment.
Recovery tiers only. For numbers that survive a technical review, see the validation dossier.