From Aalen to the APT line: the six-step chain behind MAPAL's cutting tools

Methodology case (2026-08-15). This document proves one analytical chain end-to-end on a single European company: company → product → critical materials → suppliers → policy actions → alternatives. Each step ends with an explicit IF / THEN / SO block so the causal logic is falsifiable, and every factual claim carries an evidence label:

• VERIFIED — a specific public source or a register/dossier artifact of this

platform is cited inline.

• INFERRED — reasoned from verified industry structure; the reasoning is

shown. No inferred claim is presented as a fact about the subject company.

• UNCERTAIN — plausible, sourced only weakly (single secondary source), and

flagged as such.

The subject is private and does not disclose its suppliers. No supplier relationship is asserted anywhere in this document. Step 4 instead builds the knowable candidate set from verified industry structure and says exactly where the evidence stops. Research, not investment advice.

Step 1 — The company: MAPAL Dr. Kress KG

MAPAL Dr. Kress KG is a family-owned German manufacturer of precision cutting tools, founded in 1950 and headquartered in Aalen, Baden-Württemberg, with roughly 5,000 employees across ~37 locations in 25 countries VERIFIED — [MAPAL company profile; platform dossier docs/intelligence/dossiers/mapal.md]. Group revenue in 2025 was €514 million, about 7% below the prior year's €551 million, with 2026 guided flat VERIFIED — [MAPAL 2025 results press page]. Core products are boring, reaming, drilling and milling tools for automotive (dominant), aerospace and mechanical engineering; MAPAL describes itself as the world's largest producer of PCD (polycrystalline diamond) tools VERIFIED — [MAPAL PCD tools page].

How much of revenue rides on the product below: MAPAL publishes no product-line revenue split [VERIFIED absence — checked the 2025 results page and annual-report pages]. But every named product family — solid carbide drills and mills, PCD tools, PcBN tools, reamers, boring tools — is either made of cemented tungsten carbide or built on a cemented-carbide substrate/body [VERIFIED for the product families named on mapal.com; the "substantially all of revenue" conclusion is INFERRED from the absence of any non-carbide product family in MAPAL's published range]. There is no plausible reading of MAPAL's catalogue under which less than the large majority of revenue depends on cemented carbide.

MAPAL itself confirmed the exposure in its 2025 results statement: "Since mid-2025, growing uncertainty in global raw material markets has added to the challenges, driven in particular by export restrictions and rising prices for carbide pre-products" and "Developments in the raw material markets highlight just how important resilient supply chains and long-term partnerships are" VERIFIED — [MAPAL 2025 results]. Note the phrase "carbide pre-products" — MAPAL's own language describes buying carbide inputs, not mining or converting tungsten itself.

> IF MAPAL's entire published product range is cemented-carbide-based tools > (verified), THEN the company's revenue base is structurally coupled to the > availability and price of tungsten-carbide pre-products (a coupling MAPAL > itself named in its 2025 results), SO a supply disruption in the WC-Co > chain is a revenue-base risk for MAPAL, not a procurement line item — and the > rest of this chain is worth tracing.

Step 2 — The product: cemented tungsten-carbide tools (and PCD on a WC-Co substrate)

The single most load-bearing product line is cemented tungsten-carbide cutting tools — solid-carbide drills and milling cutters (made at MAPAL's Center of Competence for solid carbide tools in Altenstadt, Germany VERIFIED — [MAPAL Altenstadt site page]), plus PCD tools in which a polycrystalline-diamond cutting layer is sintered onto a cemented-carbide substrate VERIFIED — [MAPAL PCD].

What it physically is industry-standard materials science; consistent with supplier technical literature, e.g. [Ceratizit production pages]:

• Cemented carbide ("hardmetal") is a metal-matrix composite: micron-scale

grains of tungsten carbide (WC) — the hard phase, ~70–94 wt% — consolidated by liquid-phase sintering in a ductile cobalt binder (typically 6–12 wt% in cutting grades). The result combines near-ceramic hardness with enough toughness to survive interrupted cuts. Powder is pressed into rods/blanks, sintered, then ground to final tool geometry.

• PCD tools sinter diamond grit into a polycrystalline layer using cobalt

as the catalyst/binder, on a WC-Co carrier disc; the disc is then cut into cutting edges brazed onto tool bodies. In 2023 MAPAL acquired a majority stake in ADICO (South Korea), a manufacturer of PCD and PcBN blanks — vertical integration one step upstream in the diamond blank, but not in carbide VERIFIED — [MAPAL/ADICO announcement].

• Premium grades add small amounts of cubic carbides — tantalum carbide

(TaC) and niobium carbide (NbC) — as grain-growth inhibitors that preserve hardness at cutting temperature VERIFIED that TaC/NbC additive powders are a standard hardmetal input — H.C. Starck Tungsten produces them for exactly this purpose, [hcstarck.com products; platform dossier docs/intelligence/dossiers/h-c-starck-tungsten.md].

> IF the tool that earns MAPAL's revenue is physically a WC-Co composite > (with TaC in premium grades and a WC-Co substrate under every PCD edge), > THEN the product cannot be made without tungsten, cobalt and — for > premium fine-machining grades — tantalum, SO the materials in Step 3 are > not "inputs among many": they are the product.

Step 3 — The critical materials: tungsten, cobalt, tantalum

Tungsten

• Function: the hard phase (WC) — the majority of the tool by weight

(~70–94 wt% depending on grade) [industry-standard; see Step 2 sources].

• Supply concentration: China holds 79% of world mine production

(contained W, 2025) and ~90% of refined output (APT + tungsten powder + carbide) [VERIFIED — USGS Mineral Commodity Summaries 2026, as encoded in this platform's production table, lib/iptm-material-country-production.ts].

• Substitute at commercial scale: for precision metal-cutting tooling,

no. Cermets, ceramics and PcBN/PCD replace WC-Co only in niches (specific materials, continuous cuts, or — as with PCD — still sitting on a WC-Co substrate). Tungsten is on the EU CRMA critical raw materials list and the USGS critical minerals list VERIFIED — list membership; e.g. [USGS 2025 list action in register]. The "no viable substitute" judgment for precision tooling is the consistent position of the industry's own converters and of this platform's dossier [INFERRED from converging industry sources — no counterexample of a commercial-scale WC-free precision drill/mill line exists to our knowledge].

Cobalt

• Function: the metallic binder (typically 6–12 wt%) that makes cemented

carbide "cemented", and separately the sintering catalyst in PCD layers [industry-standard; dossier]. MAPAL's position as the largest PCD-tool producer adds a second, independent cobalt dependence [VERIFIED product claim; the doubled-dependence point is INFERRED].

• Supply concentration: DRC mines 74% of world cobalt; **China refines

78%** of it (Finland 7%, Belgium 5% are the EU's refining base) [VERIFIED — USGS MCS 2026 via the platform production table].

• Substitute: nickel or iron binders exist and are commercial in narrow

segments, but cutting-grade carbide remains overwhelmingly cobalt-bound; binder substitution changes grade behaviour and would trigger the same requalification barrier described in Step 6 [INFERRED from industry structure; no full-range Co-free cutting-tool portfolio exists at scale].

Tantalum

• Function: TaC grain-growth inhibitor in premium fine-machining grades —

small by mass (single-digit wt% at most), disproportionate in performance [VERIFIED that TaC is a standard premium-grade additive (H.C. Starck product line); the presence of TaC in MAPAL's specific grades is INFERRED — MAPAL does not publish grade compositions, but premium boring/reaming grades of the type MAPAL leads in are exactly where TaC is used].

• Supply concentration: DRC 52% + Rwanda 16% of mine supply;

refining is China 50% / US 15% / Germany 10% / Estonia 8% [VERIFIED — USGS MCS via platform production table]. Tantalum is a 3TG conflict mineral under the EU Conflict Minerals Regulation and OECD due-diligence guidance [VERIFIED — regulatory fact].

• Substitute: NbC substitutes partially for TaC (and is often co-used), at

a performance penalty in some regimes — the most substitutable of the three [INFERRED from hardmetal practice; H.C. Starck sells TaC and NbC as parallel additive lines, which is itself evidence both are in commercial use].

> IF WC has no commercial-scale substitute in precision tooling, cobalt is > the near-universal binder, and TaC is the premium-grade differentiator, > THEN MAPAL cannot engineer its way out of any of the three on a > procurement timescale, SO supply risk in these materials transmits to > MAPAL's cost base and delivery capability essentially unhedged by > substitution — the only mitigations are inventory, recycling and supplier > diversification (Steps 4 and 6).

Step 4 — The suppliers: what is knowable, and what is honestly not

4a. What MAPAL discloses: no suppliers, but a due-diligence perimeter

Searched: MAPAL press releases, trade press, procurement/compliance pages, and supplier-award coverage. Findings:

• MAPAL publishes a compliance page stating it operates under the German

Supply Chain Due Diligence Act (LkSG — MAPAL is in scope at ~5,000 employees) and the Whistleblower Protection Act, and publishes a Code of Conduct for Suppliers (dated 2025-05-16 in the document path) plus a group Code of Conduct VERIFIED — [MAPAL compliance page; the supplier-code PDFs are linked there but were not retrievable in this session, so their conflict-minerals language is UNCERTAIN].

• **No named raw-material or carbide supplier appears anywhere in MAPAL's

public materials** that we could find: no supplier awards for carbide, no conflict-minerals report with a smelter list, no EU-project consortium that names a carbide source [VERIFIED absence within this session's search perimeter — absence of evidence, stated as such].

• MAPAL's one public statement about its upstream chain is the 2025-results

language quoted in Step 1: exposure to "export restrictions and rising prices for carbide pre-products", answered by "resilient supply chains and long-term partnerships" [VERIFIED]. Two useful facts hide in it: MAPAL buys carbide pre-products (it is not a tungsten converter), and it manages the risk through long-term supplier relationships (relevant to switching costs in Step 6).

Everything below this line is therefore a candidate set derived from industry structure — NOT MAPAL's disclosed suppliers. That distinction is the integrity of this document.

4b. The knowable candidate set: who converts tungsten at commercial scale in/for Europe

A German toolmaker buying carbide pre-products (powder, ready-to-press powder, rods, blanks) can only buy them from the small set of firms that convert tungsten feedstock (concentrate, APT, oxide, or scrap) into carbide powder at commercial scale. In and around Europe that set is short and verifiable:

Two structural observations, labelled honestly:

• INFERRED: MAPAL's carbide pre-products come, directly or via

rod/blank intermediaries, from some subset of the above (plus, possibly, Asian converters — China's Xiamen Tungsten / Zhangyuan, Japan's converters — for its CN/JP/KR/IN plants). This follows from the shortness of the converter list, not from any MAPAL disclosure. For comparison, MAPAL's Swabian competitor Gühring publishes an FAQ on carbide raw-material origin naming the same country set (China, Russia, USA, Canada, Korea, Bolivia, Kazakhstan, Austria, Portugal) without naming suppliers either VERIFIED — [Gühring FAQ] — non-disclosure of carbide sources is the sector norm, not a MAPAL anomaly.

• VERIFIED: the European converter set is now majority foreign-owned:

WBH → Sandvik (SE), H.C. Starck → Mitsubishi Materials (JP), GTP → Plansee (AT, private). Ownership sits in allied jurisdictions, but strategic direction of Europe's tungsten conversion is decided in Stockholm, Tokyo and Reutte — a fact any European-resilience narrative should carry.

4c. One tier further: where the converters get their tungsten

• China: 79% of mine supply and ~90% of refined output [VERIFIED — USGS

MCS 2026 via platform table]. Any converter buying APT or oxide on the open market is, with high probability, buying Chinese-origin units — this is the chokepoint the licensing regime in Step 5 sits on.

• Recycling (the biggest European "mine"): CERATIZIT states ~90%+ recycled

input; H.C. Starck states scrap is a primary feedstock alongside ore [VERIFIED — sources above]. Secondary feedstock is the main reason European conversion survives at all — which is exactly why the US scrap-export order in Step 5 matters.

• Ex-China primary mines feeding the candidate converters:

- Almonty Industries — Panasqueira, Portugal (operating since 1896, ~50 t concentrate/month) and Sangdong, South Korea (restarted 2026 after 30 years; Phase 1 ~2,300 t concentrate/yr, Phase 2 target ~4,600 t/yr; industry estimates run as high as ~40% of ex-China supply at full build-out) VERIFIED — platform dossier `almonty`, sources therein incl. [almonty.com and mining.com]. - Tungsten West — Hemerdon, Devon, UK: restarting, not yet in commercial production. Trial concentrate produced; first fines-gravity output targeted H2 2026 and full plant commissioning early 2027 VERIFIED — platform dossier `tungsten-west`, incl. [mining.com trial-concentrate report]. - Masan / Nui Phao, Vietnam — contracted to H.C. Starck via the long-term APT/oxide offtake agreed at the Mitsubishi sale [VERIFIED — Masan/H.C. Starck sources above]. - WBH's own Mittersill mine (Austria) — the only operating tungsten mine inside the EU feeding a converter directly [VERIFIED — wolfram.at].

> IF MAPAL buys carbide pre-products (its own words) and the set of firms > that can make them for the European market is five-to-six names deep, all > of which ultimately draw on ~80%-Chinese primary units, European/US scrap, > and a handful of ex-China mines (Panasqueira, Sangdong, Nui Phao, > Mittersill, Hemerdon-restarting), THEN MAPAL's tungsten exposure is > concentrated in a mappable two-tier funnel even though its actual contracts > are private, SO policy actions on China's export line, on DRC cobalt, or > on scrap flows (Step 5) reach MAPAL through at most two intermediaries — and > the candidate-set method bounds the transmission paths without fabricating a > single relationship.

Step 5 — The policy actions that bear on this chain (from our register, classified)

Query basis: all register actions with severity ≥ 3 touching tungsten, cobalt or tantalum (149 hits; 12 after restricting to flow-restricting action types), plus the upcoming-threats queue (24 hits). Each selected action is classified with lib/policy-transmission.ts (transmission class), and the issuer's actual production share (the honesty gate) is stated. Five bear on the chain; the rejects are listed with reasons, because rejecting irrelevant actions is as load-bearing as selecting relevant ones.

Selected

1. China MOFCOM Announcement No. 10 [2025] — dual-use export licensing on tungsten items (APT, carbide, W-metal ≥97%), in force since 2025-02-04. Class: supply-restriction; issuer share: 79% of mining, ~90% of refining — the maximum-bite configuration. [VERIFIED — register /actions/2025-02-04-china-mofcom-tungsten-tellurium-bismuth-molybdenum-indium-export-controls; primary source MOFCOM 公告2025年第10号.] Licences are friction, not a wall — our own circumvention case found China's direct APT line to the US rose in tonnage post-licence while origin-shifting emerged [VERIFIED — platform case 2025-tungsten-licensing-circumvention-transshipment]. The bite is lead time and allocation risk, not (yet) absolute volume. 2. China MOFCOM Announcement No. 68 (2025) — state-trading-enterprise quota regime for tungsten exports, 2026–2027 cycle, effective 2026-01-01. Class: supply-restriction. This adds a second gate on the same ~90% refined chokepoint: only approved STEs may export, under a quota reviewed jointly by MOFCOM. Notably, tungsten was not suspended in the Nov-2025 US-China truce — the regime stands. [VERIFIED — register /actions/2025-10-26-china-mofcom-announcement-68-tungsten-antimony-silver-ste-quota.] 3. DRC ARECOMS cobalt export suspension → 96,600 t/yr quota system, in force since 2025-02-22 (quota regime from Oct 2025 for 2026–27). Class: supply-restriction; issuer share: 74% of cobalt mining. The world's top producer (CMOC) is structurally capped below 30% of its capacity. Transmission to MAPAL runs through the cobalt-metal-powder price into binder cost and PCD manufacture — a cost/availability channel one step longer than tungsten's. [VERIFIED — register /actions/2025-02-22-drc-arecoms-cobalt-export-ban-quota-system.] 4. US BIS DPAS Directive Allocation Order — 100% domestic-sale mandate on black mass and tungsten waste/scrap, announced 2026-08-06, effective 2026-08-27, one-year term. Class: supply-restriction — on the SECONDARY feedstock channel. The US is a marginal tungsten miner but a major scrap pool; Europe's converters are recycling-fed (CERATIZIT ~90%+, H.C. Starck scrap-primary), and the GTP chain physically routes scrap and oxide between Towanda and its EU plants. Barring US scrap exports tightens the one feedstock market Europe actually controls. Transmission to MAPAL: INFERRED (feedstock-pool logic), the order itself VERIFIED — [register /actions/2026-08-06-us-bis-dpas-directive-allocation-order-black-mass-tungsten-scrap; primary 91 FR 50701]. 5. DRC strategic-mineral reclassification (May 2026) — tantalum, tungsten (+4 others) added to the "strategic" royalty class, 3.5% → 10%, in force 2026-05-29. Class: cost escalation at origin (the register files it as industrial-policy; it restricts nothing but re-prices DRC-origin tantalum units — 52% of world mine supply). For MAPAL this is a TaC-additive cost channel, small in absolute euros, structural in direction. [VERIFIED — register /actions/2026-05-29-drc-strategic-mineral-expansion-decree.]

Rejected, with reasons

• **China MOFCOM Announcement No. 1 [2026] — Japan-specific dual-use controls

(tungsten)* [`/actions/2026-01-06-china-mofcom-announcement-1-2026-japan-dual-use-export-controls`]: country-targeted at Japan. It touches MAPAL's Japanese plant (~8% of estimated footprint, dossier) but not the German chain this case traces. It matters as a template* — proof China now writes country-specific tungsten controls — and is a watch item, not a current transmission path to Aalen.

• **US FY2026 NDAA §844 covered-materials expansion (tantalum, tungsten among

covered)* [`/actions/2025-12-18-us-ndaa-fy2026-section-844-covered-materials-gallium-germanium-molybdenum`]: a DoD procurement sourcing rule*, i.e. compliance/demand-side. It restricts what the Pentagon buys, not what MAPAL can source; indirect effect (allied demand competing for ex-China units) is real but second-order.

• Malawi raw-mineral export ban (tantalum listed)

[/actions/2025-10-21-malawi-presidential-eo-raw-mineral-export-ban]: fails the honesty gate — Malawi is not a listed tantalum producer in the USGS-based production table (no measurable share). A live prohibition from a non-producer is a small real threat regardless of severity score.

• China zero-tariff treatment for 53 African states (cobalt-relevant)

[/actions/2026-04-28-china-customs-tariff-commission-zero-tariff-53-africa]: liberalising/pull measure. It deepens China's gravitational pull on African cobalt and tantalum feedstock — strategically relevant background, but it restricts nothing MAPAL buys today.

• EU CRMA-family compliance items (reporting, stock benchmarks, CRM Centre

— several register/queue entries): class compliance/support, not supply restriction. For a company like MAPAL they create reporting work and potential upside (strategic-project funding for its converters), not a supply cut. Folding them into a threat list would repeat the category error lib/policy-transmission.ts was built to prevent.

> IF China's APT/carbide export-licensing regime (in force 2025-02-04) > plus the STE quota gate (effective 2026-01-01) tighten allocation on ~90% of > the world's refined tungsten while the US walls off its scrap pool > (effective 2026-08-27) and the DRC quotas cobalt at 74% of mine supply, > THEN every converter in MAPAL's candidate set faces longer licence lead > times on primary units and a tighter secondary-feedstock market > simultaneously — visible already in carbide pre-product prices (APT roughly > doubled between Dec-2025 and Feb-2026 per trade sources [UNCERTAIN — vendor > price blogs, e.g. meetyoucarbide.com; the direction is corroborated by > MAPAL's own 2025 statement]), SO MAPAL's exposure is not price alone but > allocation timing: the mitigations that work on this clock are inventory > depth, recycling intake, and qualified second sources — none of which can be > conjured after a cut-off.

Step 6 — The alternatives, ex-the-restricting-jurisdiction

Shares below are this platform's renormalised ex-issuer supply bases (substituteSuppliers(), USGS MCS 2026 basis; fractions of the remaining listed supply, not of world supply).

Tungsten (issuer: China)

Ex-China mining base: Vietnam 22%, Kazakhstan 18%, North Korea 15% (unusable — sanctions), Russia 15% (sanctioned/unbankable for EU buyers), Bolivia 13%, Rwanda 10% (3TG due-diligence burden), Australia 8% [VERIFIED — platform table]. The usable ex-China base is therefore much smaller than the raw arithmetic: realistically Vietnam, Kazakhstan, Bolivia, Australia, plus the new/restarting allied capacity:

• Almonty Sangdong (South Korea) — operating since 2026, Phase 1 ~2,300

t/yr concentrate, Phase 2 ~4,600 t/yr planned 2027. Korea is a US ally and an EU FTA partner. The single biggest ex-China primary increment this decade [VERIFIED — dossier almonty].

• Almonty Panasqueira (Portugal) — EU member state, operating, ~50

t/month concentrate — small but the EU's only meaningful operating source besides Mittersill [VERIFIED — dossier almonty].

• WBH Mittersill (Austria) — EU, operating, captive to Sandvik's

converter [VERIFIED — wolfram.at].

• Tungsten West Hemerdon (UK) — **restarting, not producing

commercially**: trial concentrate only, first output targeted H2 2026, full commissioning early 2027, with disclosed cost overruns. Post-Brexit UK, so outside the EU customs union but inside the UK's 2025 critical-minerals strategy perimeter [VERIFIED — dossier tungsten-west]. Treat as an option, not supply.

Ex-China refining base (the step that actually makes carbide powder): Austria 44% (WBH), US 22% (GTP Towanda), Germany 22% (H.C. Starck), Vietnam 11% (Masan) — of a non-China pool that is only ~10% of the world [VERIFIED — platform table]. This is the real constraint: ex-China mine projects still need ex-China conversion, and Europe's conversion capacity is the thinner of the two layers.

Cobalt (issuer: DRC)

Ex-DRC mining: Indonesia 66%, Russia 12%, Madagascar 6%, Philippines 6%, Australia 6%, Canada 5% [VERIFIED — platform table]. But refining is the binding layer: China 78%, Finland 7%, Belgium 5% — for hardmetal-grade cobalt powder the European chain runs through Kokkola, Finland (largest cobalt refinery outside China; refinery Umicore-owned since 2019/2020, with the fine powders business at the same site continuing under Freeport Cobalt) and Umicore's cobalt/metal-bond powder lines in Belgium VERIFIED — [Umicore acquisition release, noting the carve-out]. An EU-domiciled cobalt-powder route exists; it is simply thin and DRC-fed upstream.

Tantalum (issuer: DRC)

Ex-DRC mining: Rwanda 34%, Nigeria 33%, Brazil 16%, Australia 4% [VERIFIED — platform table] — but Rwanda carries the same 3TG conflict-mineral due-diligence weight as the DRC itself, so the clean ex-DRC base is effectively Brazil/Australia/Nigeria. Processing ex-China: US 15%, Germany 10%, Estonia 8% [VERIFIED — platform table]. H.C. Starck Tungsten (Goslar) is itself a TaC producer, so for MAPAL's premium-grade additive the material and the converter candidate coincide [VERIFIED — dossier h-c-starck-tungsten].

The honest constraint: requalification, not discovery

A cutting-tool maker cannot swap carbide powder grades overnight. A grade change (new powder source, new binder lot behaviour, different grain-size distribution) alters sintering shrinkage, edge toughness and coating adhesion; tools for automotive and aerospace lines are qualified at the customer, per application, sometimes per production line. Requalification is therefore measured in months per grade, longer where end-customer sign-off is needed [INFERRED — from hardmetal industry practice and MAPAL's own emphasis on "long-term partnerships" as the supply answer; no public MAPAL qualification timeline exists]. The practical consequence: the alternatives above are real at the industry level on a 1–3 year clock, and nearly irrelevant inside a single allocation crisis. Inventory and recycling are the only fast levers.

> IF ex-China tungsten conversion is ~10% of the world (AT/US/DE/VN), > allied primary supply is growing but small (Sangdong) or not yet producing > (Hemerdon), and any powder-source switch triggers months of requalification, > THEN "alternatives exist" is true only on a multi-year horizon and false > inside a licensing shock, SO the correct reading of MAPAL's resilience is > its inventory depth and its converters' recycling share — the two buffers > that operate inside the lead-time window — and both are private numbers we > cannot verify. That is the honest edge of this analysis.

What would falsify this chain

The chain is auditable because each link names the evidence that would break it:

1. Step 1–2: a MAPAL product-line disclosure showing a material share of revenue in non-carbide products (e.g. steel tooling, services) would weaken the "revenue rides on WC-Co" premise. Current evidence: no such line exists in the published range. 2. Step 3: commercial launch of a full-range WC-free (or cobalt-free) precision drilling/milling portfolio by any major toolmaker at competitive cost would falsify the no-substitute claim. Watch: binderless carbides, NbC-based hardmetals, cermet ranges. 3. Step 4: any MAPAL disclosure naming its carbide pre-product suppliers (LkSG/CSRD reporting could force this — its supplier Code of Conduct dated 2025-05-16 already exists) would replace the candidate set with facts. A named supplier outside our candidate set (e.g. direct Chinese rod sourcing for German production) would prove the set incomplete — the most likely failure mode of this document. 4. Step 5: suspension or lapse of the Chinese tungsten licensing/STE regime (the way the REE controls were truce-suspended in Nov-2025 while tungsten's were not) would remove the anchor restriction; equally, evidence that licences are being granted to EU converters at pre-2025 lead times would downgrade "allocation timing" to "paperwork". 5. Step 6: Hemerdon reaching commercial production on schedule and European conversion capacity expanding (e.g. a CRMA strategic-project designation for a new EU carbide-powder line) would materially widen the ex-China base and soften the SO-clause of Step 6. Conversely, Sangdong Phase 2 slipping would tighten it. 6. Cross-cutting: USGS revisions to the 79%/90% China shares, or evidence of large non-reported ex-China APT capacity, would re-scale every share in this document (all shares carry their vintage: USGS MCS 2026, 2025 data).

What this proves about the method

Derivable from our corpus alone: the company's material exposure and footprint (dossier), all production/concentration shares and ex-issuer substitution math (lib/iptm-material-country-production.ts), the full policy layer including selection and rejection with transmission classes (lib/actions, lib/upcoming-threats, lib/policy-transmission.ts), the upstream mine candidates with capacity and stage (dossiers almonty, tungsten-west, h-c-starck-tungsten), and a prior empirical read on whether the anchor control actually bites (case 2025-tungsten-licensing-circumvention-transshipment). That is five of six steps at roughly 80% completeness before any web search.

Needed outside research: everything company-specific below the surface — MAPAL's 2025 revenue and its own carbide-pre-product statement, the ADICO acquisition, the LkSG/compliance perimeter, the converter candidate set's current ownership (H.C. Starck → Mitsubishi closed Dec-2024; our dossier predates it and should be refreshed), and the recycling-share and scrap-routing facts that make the US DPAS order relevant. The platform is strong on the material and policy layers and thin on the company-private procurement layer — which is exactly the layer no free source fills; the method's honest answer there is the labelled candidate set, and this document is the template for it.

Register links resolve under `/actions/<id>`; dossiers under `docs/intelligence/dossiers/`. Production shares: USGS Mineral Commodity Summaries 2026 (2025 data) as encoded in this platform's tables; fractions are renormalised ex-issuer bases where stated. Prepared 2026-08-15.