zinc_lead_smelter_capacitycommodityCuratedAuthoritative

Zinc/lead smelter-refinery capacity overlay

strata (BrightQuery)

zinc + lead smelter / refinery contained-metal capacity for the top ~30 plants; China's mid/small plants left named-only or unnamed (out of free scope), so capacity-known < facility count is honest

Source

How it's published

Feed (what to expect)

USGS MYB zinc/lead world-smelter and refinery tables anchor the totals; per-plant figures from Boliden, Nexa, Hindustan Zinc, Korea Zinc, Teck, Glencore, Nyrstar/Trafigura, Penoles, Sun Metals and DOWA disclosures.

Cadence: curated (re-vendored as company disclosures / USGS chapters update)
Access: public-domain USGS Minerals Yearbook zinc (2022) + lead (2019) chapters for world / country anchors, plus company annual reports and official plant pages
Format: curated JSONL (rides the midstream_components census loader)
Licence: public-domain USGS + primary company disclosure, cited per row
Vintage: 2026
Upstream: —

Proprietary vendors (S&P, CRU, WoodMac, Fastmarkets, SMM, ILZSG member DB) are out of license scope: where a figure exists only via such a source it is withheld (capacity null), the plant row kept. Single-smelter-country USGS totals are used as a plant proxy only where one plant is a country's sole primary smelter (Balen=Belgium, Auby=France, Port Pirie=Australia lead).

Reconciliation

Role in the canonical graph

Authority tier: Curated
Provenance: Authoritative
Canonicality: tier 1
Primary for: —
Contributes IDs: —
Name-block matching: excluded
Reconcile profile: default (tier 1)

Schema

What it feeds & emits

Feeds (axes)

Supply

Record kinds

Facility

Identifier schemes

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