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What they make, where they produce, the materials that matter — then what is coming, what it would do to the business, and the moves available. Sector: mining metals. Company profile →
OM Holdings Limited (ASX: OMH, dual-listed on Bursa Malaysia) is a vertically integrated manganese and silicon-alloy producer. It mines manganese ore at Bootu Creek in Australia's Northern Territory (currently on care and maintenance, with no ore mined in 2025) and holds an effective ~13% interest in the Tshipi Borwa manganese mine in South Africa. It smelts manganese alloys (silicomanganese, ferromanganese) and silicon products (ferrosilicon, silicon metal) at the Samalaju complex in Sarawak, Malaysia (via the OM Sarawak joint venture), with a second manganese-alloy smelter in Qinzhou, Guangxi, China.
Despite its ASX primary listing and Perth-administered head office, the company is incorporated in Bermuda.
Verbatim from the dossier's “What they do” section — sources on the company profile.
This is where OM Holdings Limited produces — approximate output shares from its dossier — not where it sells. Sales geography is not yet in our corpus for any company, so we cannot compute exposure to measures that bite on where products ship: an extraterritorial re-export rule follows the shipment and its material content, not the factory. Where such a measure touches its materials, the policy sections below flag it — but its sales-side incidence is not computable yet, and we say so rather than substitute the production map for it.
Of everything in its products, we track the critical inputs — the materials whose supply is concentrated in few countries, policy-exposed, or hard to substitute — because those are the ones a single measure can move. Each carries its role in the product, quoted from the dossier's own exposure note.
Silicon — bulk primary product (upstream producer). The Samalaju complex runs dedicated ferrosilicon (~120,000-126,000 t/yr design capacity) and silicon metal (~21,000-24,500 t/yr design capacity) production lines — a genuine primary-output business, not an incidental byproduct. Chromium, cobalt, copper, nickel, aluminium, niobium and vanadium — carried over from the sector-default stub —…
Manganese — bulk primary product (upstream producer, not a consumer). OM Holdings mines manganese ore (Bootu Creek, Australia; minority interest in Tshipi Borwa, South Africa) and smelts it into silicomanganese and ferromanganese alloys at Samalaju (Malaysia) and Qinzhou (China). The risk here is supply-side concentration and jurisdictional exposure rather than input dependency: its own mine is currently i…
The dossier also records the materials it investigated and rejected — the list above is narrowed deliberately, not cherry-picked. Its own words:
Scope. The non-critical remainder of the bill of materials — structural steel, polymers, glass and the like — is not tracked here because it is not supply-constrained: this section covers the constrained inputs, which is where policy risk concentrates, not a full bill of materials.
The top 5 are ranked mechanically — what the instrument does (its transmission class: an export ban is not a reporting duty), × how close to law (stage-derived likelihood band, never a probability) × how much of your tracked bill of materials it touches. Each unfolds as a chain: trigger → what it hits → the response the instrument actually calls for. A measure touching a material you produce can be an opportunity, not a threat.
GA · stage passed-vote → high likelihood · touches manganese · flagged 26 Jun 2026, 101d pending
Gabon (CTRI transitional government, President Oligui Nguema) announced at Africa Forward Summit in Nairobi (May 2026) its intention to subscribe to Eramet SA's €500M capital increase, giving the Gabonese state direct equity in the French-listed parent of COMILOG (its primary manganese mining subsidiary in Moanda). Gabon already holds 29% of COMILOG; a stake in Eramet SA itself would give Gabon leverage over the global operations of the parent group (smelting, nickel, lithium, manganese across France, Norway, Senegal, and Indonesia) and a seat at the Eramet Board. Eramet AGM (May 27, 2026) approved the capital raise resolution. Capital raise planned for H2 2026. Distinct from: filed 2025-05-30-gabon-raw-manganese-export-ban-2029 (the export ban forcing value-addition); filed 2024-07-02-gabon-decret-0276-regimes-des-substances-souveraines (35% state free-carry in new mines) — this is an equity purchase in the parent company, not a free-carry in a Gabonese concession; new vector of state resource-control
source ↗Manganese — bulk primary product (upstream producer, not a consumer). OM Holdings mines manganese ore (Bootu Creek, Australia; minority interest in Tshipi Borwa, South Africa) and smelts it into silicomanganese and ferromanganese alloys at Samalaju (Malaysia) and Qinzhou (China). The risk here is supply-side concentration and jurisdictional exposure rather than input dependency: its own mine is currently i…
This changes the form of what GA exports, not whether you can buy: raw/unprocessed exports are restricted while domestically processed material stays available — that is the measure's own mechanism. Your GA-origin raw feed becomes processed-only; the route is a value-added purchase or a GA processing partner, not a supplier switch.
manganese — you sit on the supply side: a measure tightening others' supply pushes buyers toward you, so your move is positioning, not substitution (chokepoint page).
BR · stage passed-vote → high likelihood · touches manganese · flagged 19 Jun 2026, 108d pending
First federal statutory framework for critical and strategic minerals; establishes CMCE oversight committee, R$2B Mineral Activity Guarantee Fund (0. 2% gross revenue levy on critical-mineral companies), mandatory 0. 3% gross revenue R&D investment, 20% tax credits for domestic mineral transformation projects; limits raw-mineral exports where domestic processing capacity exists; covers niobium explicitly (CBMM/CMOC supply ~85% of global niobium — Brazil is a structural chokepoint); Chamber passed 343-97 on 7 May 2026, Senate review pending
source ↗Manganese — bulk primary product (upstream producer, not a consumer). OM Holdings mines manganese ore (Bootu Creek, Australia; minority interest in Tshipi Borwa, South Africa) and smelts it into silicomanganese and ferromanganese alloys at Samalaju (Malaysia) and Qinzhou (China). The risk here is supply-side concentration and jurisdictional exposure rather than input dependency: its own mine is currently i…
This changes the form of what Brazil exports, not whether you can buy: raw/unprocessed exports are restricted while domestically processed material stays available — that is the measure's own mechanism. Your Brazil-origin raw feed becomes processed-only; the route is a value-added purchase or a Brazil processing partner, not a supplier switch.
manganese — you sit on the supply side: a measure tightening others' supply pushes buyers toward you, so your move is positioning, not substitution (chokepoint page).
EU · stage awaiting-signature → high likelihood · touches siliconmanganese · flagged 15 Jun 2026, 112d pending
Establishes the first legally binding "safe level" benchmark for EU strategic stocks of each of the 17 strategic raw materials listed in the CRMA Annex I; benchmarks used as reference by Member States, financial institutions, and industrial consumers to assess strategic supply risk; mandated every 2 years, so this is the first edition setting the baseline; informs CRMA Art. 23 monitoring obligations and is the evidential basis for Art. 24 corporate-reporting thresholds
source ↗Silicon — bulk primary product (upstream producer). The Samalaju complex runs dedicated ferrosilicon (~120,000-126,000 t/yr design capacity) and silicon metal (~21,000-24,500 t/yr design capacity) production lines — a genuine primary-output business, not an incidental byproduct. Chromium, cobalt, copper, nickel, aluminium, niobium and vanadium — carried over from the sector-default stub —…
Manganese — bulk primary product (upstream producer, not a consumer). OM Holdings mines manganese ore (Bootu Creek, Australia; minority interest in Tshipi Borwa, South Africa) and smelts it into silicomanganese and ferromanganese alloys at Samalaju (Malaysia) and Qinzhou (China). The risk here is supply-side concentration and jurisdictional exposure rather than input dependency: its own mine is currently i…
This is a reporting / disclosure obligation — it does not prohibit importing from anywhere, so there is no supplier to switch and we list none. What you must do is what the measure's own text above describes: map the supply chain it covers, run the audit, and file. Its text states no filing deadline — we don't invent one.
Mapping your supply chain is exactly the work this obligation requires — your MacroLens exposure report is that map's starting point.
TZ · stage awaiting-signature → high likelihood · touches silicon · flagged 28 Jun 2026, 99d pending
The same Finance Bill 2026/27 already tabled (Parliament-passed 23 June 2026, effective 1 July 2026) inserts a NEW export levy of "10% of the FOB value of the cargo OR TZS 200 per kilogram, whichever is higher" on exports of quartz minerals (HS 25. 06) and feldspar (HS 2529. 10. 00) via amendment to the Export Tax Act, Cap. 196 — a distinct beneficiation-forcing EXPORT-TAX instrument that pushes raw quartz/feldspar exporters toward in-country value-addition. 196), and neither existing entry mentions it; (2) material-relevant — quartz HS 25. 06 covers high-purity/silica quartz feeding the silicon→semiconductor/solar value chain, so a Tanzanian export tax re-prices a raw-silica supply node; the same "rocks to riches" beneficiation logic Tanzania applies elsewhere; (3) part of the wider African raw-mineral-export-tax wave (cf. Zimbabwe 10% lithium-concentrate levy, Namibia unprocessed-mineral ban, Guinea bauxite reference price).
source ↗Silicon — bulk primary product (upstream producer). The Samalaju complex runs dedicated ferrosilicon (~120,000-126,000 t/yr design capacity) and silicon metal (~21,000-24,500 t/yr design capacity) production lines — a genuine primary-output business, not an incidental byproduct. Chromium, cobalt, copper, nickel, aluminium, niobium and vanadium — carried over from the sector-default stub —…
This changes the form of what TZ exports, not whether you can buy: raw/unprocessed exports are restricted while domestically processed material stays available — that is the measure's own mechanism. Your TZ-origin raw feed becomes processed-only; the route is a value-added purchase or a TZ processing partner, not a supplier switch.
silicon — you sit on the supply side: a measure tightening others' supply pushes buyers toward you, so your move is positioning, not substitution (chokepoint page).
US · stage passed-committee → elevated likelihood · touches manganese · flagged 23 Jun 2026, 104d pending
Revises 30 CFR Part 580 to streamline 10 provisions governing prospecting, leasing, and operations for hard minerals (manganese nodules, cobalt-rich crusts, seafloor massive sulfides) on the US Outer Continental Shelf; eliminates environmental notification to adjacent state governors (§580. 31) and BOEM's own environmental review requirement (§580. 29); accelerates OCS hard mineral leasing pipeline in line with EOs 14285 and 14154 ("unleashing" OCS resources); comment period closed April 27, 2026; awaiting final rule
source ↗Manganese — bulk primary product (upstream producer, not a consumer). OM Holdings mines manganese ore (Bootu Creek, Australia; minority interest in Tshipi Borwa, South Africa) and smelts it into silicomanganese and ferromanganese alloys at Samalaju (Malaysia) and Qinzhou (China). The risk here is supply-side concentration and jurisdictional exposure rather than input dependency: its own mine is currently i…
The filed text doesn't state this instrument's mechanism clearly enough to classify, so we don't guess a response — the measure text above is the read.
manganese — you sit on the supply side: a measure tightening others' supply pushes buyers toward you, so your move is positioning, not substitution (chokepoint page).
Cabinet-cleared bill to replace the 2006 Minerals and Mining Act, Act 703: raises mining royalties from current 3–5% range to 9–12% (price-linked sliding scale), introduces a new medium-scale mining…
Minister of Mines, Petroleum and Energy Mamadou Sangafowa-Coulibaly formally launched the revision of Côte d'Ivoire's 2014 Mining Code on 13 June 2026, standing up an expert team drawn from his minis…
Mongolia's cabinet approved and submitted to the State Great Khural a draft amending ~40% of the 2006 Minerals Law: (i) cuts the maximum exploration-licence duration from 12 to 6 years while raising…
10% free-carried state equity in ALL new mining and energy projects (no-cost government stake via Epangelo Mining); consultations on 51% Namibian ownership in new mining ventures; maximum royalty rat…
Gabon = ~25% world manganese reserves, world's 2nd largest manganese ore exporter (~8 Mt/year via COMILOG/Eramet); ban on raw ore exports forces domestic processing investment (silicomanganese, EMD,…
Second wave of CRMA Art.
RESourceEU (COM(2025) 945, 3 Dec 2025) commits the Commission to establish a **European Critical Raw Materials Centre** in early 2026 with four functions: (a) generate **systemic market intelligence…
If adopted, creates a unified mining regulatory framework across Cameroon, CAR, Congo-Brazzaville, Gabon, Equatorial Guinea, and Chad — harmonising licensing regimes, fiscal terms, transparency oblig…
Binding plurilateral trade agreement among like-minded partners (US, EU, Japan and FORGE coalition members) establishing coordinated trade measures for critical mineral supply chains — including bord…
On 10 July 2026 the African Development Bank Group, with the African Union Commission, the AfCFTA Secretariat and UNECA, convened African ministers of mining/energy/industry in Abidjan for the "Minis…
Ministry of Mines issued operational guidelines for the Mining Sector Reforms component under Scheme for Special Assistance to States for Capital Investment (SASCI) FY2026-27, with total ₹5,000 crore…
2 of 26 filed an explicit in-force stage; the rest (flagged below) default from an absent stage: field, not a filed assertion. Each links to the register entry with its primary source.
For a material it buys, a restriction tightens supply and raises input cost — a headwind. For the 2 it produces, the same restriction supports pricing — a tailwind. Scores are footprint-adjusted and buyer-relative (0–100, higher = more exposed).
Its customers sit in ev batteries, permanent magnets, ev motors, wind turbines, defence… — read via the graph's critical minerals node, the nearest equivalent of its sector. A measure supporting those sectors supports demand for this company's products; one restricting them puts that demand at risk. The sign shown is the mechanical read — click through to judge whether a measure protects or constrains the customer.
Every tracked material is on the supply side — the strategy here is positioning, not substitution.
This company sits on the supply side of silicon. Restrictions by 🇨🇳 CN push buyers toward ex-CN producers — the strategy is to be visible where those buyers look: the silicon chokepoint page and the watchlist.
This company sits on the supply side of manganese. Restrictions by 🇨🇳 CN push buyers toward ex-CN producers — the strategy is to be visible where those buyers look: the manganese chokepoint page and the watchlist.
lib/policy-transmission.ts): an export prohibition in the measure's name/text → supply restriction; a raw/unprocessed-export limit or local-processing mandate → beneficiation (form change, not unavailability); reporting/disclosure/due-diligence language → compliance obligation; tariff/trade-remedy language → import cost; subsidy/fast-track/relaxation language → support; investment-screening/M&A language → investment control. When the text carries no signal we fall back to the action-type default and label the chip inferred; when neither exists the card says so and derives no response — we never assert a class the evidence doesn't support.lib/iptm-material-country-production.ts; mining stage preferred, refining as fallback — the stage and source year are in each figure's hover text). Ex-issuer supply removes the ISSUING country and renormalises the remaining listed shares (so they sum to 100% of what's left) — alternatives to the country making the rule, never a default ex-China list. Where the issuer holds no measurable share, the card says so plainly instead of implying supply loss.lib/alternative-viability.ts): each named alternative carries a deployment status — operating / ramping / restarting / development / unknown — derived from word-boundary signal phrases in its own dossier (“operating since 1896”, “restarting the … mine”, “FID taken”), and the verbatim matched phrase is shown as the basis so the claim is auditable; a dossier with no signal stays unknown, never guessed. Any evidenced production date is quoted verbatim (“first production targeted H2 2029” → “no tonnes before 2029”) — we never synthesize one. A measure whose own text claims extraterritorial / re-export / de-minimis / foreign-direct-product / percentage-of-value scope triggers the origin-switching warning above the list: such a rule follows the material, not the seller, so a foreign-made alternative can still be captured. Same-issuer register actions targeting an alternative's country and material mark it may be captured, with the entries linked. “Capacity partly committed” lines quote the dossier verbatim — we hold no structured free-capacity numbers and never imply a utilisation figure.How MacroLens tracks this for you. The policy register files new measures daily and this page recomputes from it — the same chokepoints are monitored live on the watchlist and in the full register.