Battery-grade manganese stands at an inflection point, with China controlling 95-96% of high-purity manganese sulfate (HPMSM) production while Western nations scramble to establish domestic supply chains. South32's GEMCO cyclone damage in 2024 removed 50% of global high-grade manganese supply for nearly a year, exposing critical vulnerabilities. This analysis ranks 20 publicly-traded manganese companies across established producers, development-stage assets, and the critical new additions of The Metals Company (TMC) and Firebird Metals.
The most compelling investment thesis centers on three archetypes: Jupiter Mines for immediate cash-generating pure-play exposure with exceptional dividends; Element 25 for battery-grade transformation with major OEM backing; and Electric Metals USA for maximum leverage to a US critical minerals renaissance. TMC offers speculative optionality on regulatory breakthrough but carries existential permitting risks that offset its massive resource base.
Building a comprehensive investable universe required screening across the ASX, TSX-V, JSE, NSE, HKEX, Tokyo Stock Exchange, Paris Euronext, and NASDAQ. Pure-play exposure remains rare—most listed exposure comes through diversified miners or downstream processors. The expanded universe includes companies previously overlooked in African, Asian, and deep-sea contexts.
| Category | Companies | Key Characteristics |
|---|---|---|
| Established Producers | South32, Eramet, Jupiter Mines, MOIL, OM Holdings | Cash-generating, mature operations |
| Battery-Grade Developers | Element 25, Euro Manganese, Giyani Metals, Manganese X, Electric Metals USA | HPMSM focus, government support |
| Deep-Sea/Alternative | The Metals Company (TMC) | Polymetallic nodules, regulatory uncertainty |
| Emerging/Specialty | Firebird Metals, South Manganese Investment (1091.HK) | Regional niche, vertical integration |
| Pure-Play Producers | Jupiter Mines/Tshipi, Assore, African Rainbow Minerals | Kalahari exposure |
The Metals Company (NASDAQ: TMC) represents the most unconventional manganese investment—polymetallic nodule mining from the Clarion-Clipperton Zone of the Pacific Ocean. The August 2025 Pre-Feasibility Study confirmed substantial manganese exposure: 31.15% average manganese grade in NORI-D nodules, with 345 million tonnes of contained manganese across exploration areas.
At commercial scale, TMC projects 2.4 million tonnes of manganese annually as manganese silicate, though manganese represents only ~28% of projected revenue versus nickel (45%), copper (17%), and cobalt (9%). The company successfully produced battery-grade manganese sulfate in Q3 2025, with SINTEF validating 7-17% higher value-in-use compared to conventional ores.
TMC's pivot from ISA permits to US DSHMRA pathway creates both opportunity and risk. NOAA deemed applications "fully compliant" in December 2025, with public comment ending February 2026. However, 40+ countries have announced opposition to deep-sea mining, while 60+ corporations (including BMW, Panasonic, Google, Samsung) committed to avoiding nodule-derived materials. The ISA Secretary-General publicly criticized TMC's approach.
| TMC Metric | Value |
|---|---|
| Market Cap | ~$3.2 billion |
| Cash Position | $121 million (post-Q3 2025) |
| Quarterly Burn Rate | $11-12 million |
| Project NPV (NORI-D) | $5.5 billion |
| EV per Tonne Contained Mn | ~$9-10 |
| Earliest Commercial Production | Q4 2027 (if permit by end-2026) |
| Total Project Capex | $4.9 billion |
The Korea Zinc strategic investment ($85.2 million at $4.34/share) and Glencore partnership (50% offtake for nickel/copper only) provide validation, but TMC remains pre-revenue with significant financing gaps. The EV/NPV ratio of 0.12-0.15x reflects market skepticism about execution probability.
Firebird Metals (FRB.AX) takes an unconventional approach among Australian developers, building HPMSM processing capacity in China's Jinshi High-Tech Industrial Park (Hunan Province) while developing the Oakover manganese resource in Western Australia. The company secured its Mining Lease in March 2025 covering 176.7 Mt at 9.9% Mn.
The China facility targets 50,000 tonnes/year of battery-grade MnSO₄ initially, scaling to 300,000 tpa with proprietary co-synthesis technology producing LMFP directly from HPMSM solution—achieving 70% energy reduction versus conventional kilns. All three operating permits (safety, environmental, energy) were secured in under 4 months.
Key partnerships strengthen the investment case: Eramet MOU for 80,000 tpa manganese ore supply from Gabon; four non-binding offtakes covering 70% of Stage 1 MnSO₄ and 100% of Mn₃O₄; and the Taza Metal Technologies joint venture for lithium manganese-rich cathode R&D.
| Firebird Metals Metric | Value |
|---|---|
| Market Cap | A$17-27 million |
| Resource | 176.7 Mt @ 9.9% Mn |
| Stage 1 Capex | US$83.5 million |
| Oakover NPV | A$741 million |
| Oakover IRR | 73.1% |
| Production Timeline | China late 2025-2026; Oakover TBD |
| Funding Secured | ~60% of Stage 1 |
The ~A$20 million market cap against A$741 million Oakover NPV suggests substantial upside if execution succeeds, though funding risk remains elevated with 40% of Stage 1 capital still needed.
Jupiter Mines (JMS.AX) provides the purest large-scale manganese exposure through its 49.9% stake in Tshipi é Ntle, the world's third-largest manganese mine in South Africa's Kalahari field. Production reached 3.6 million tonnes in FY24 at industry-leading FOB costs of US$2.27/dmtu—positioning Tshipi firmly in the first quartile globally.
The investment case centers on capital return: Jupiter has distributed A$425 million in dividends since 2018 (127% of current market cap), with a 5-year average yield of ~13%. Recent Q4 FY25 showed EBITDA of A$44.3 million (+65% QoQ) with strengthening realized prices of US$4.03/dmtu.
Mine life exceeds 120 years, providing exceptional longevity. The company's 5-year strategy targets becoming the world's largest manganese producer by expanding Tshipi to 4.0+ Mtpa while pursuing Kalahari consolidation opportunities. Battery-grade HPMSM evaluation is underway but not yet committed.
Element 25 (E25.AX/ELMTF) represents the most advanced Western HPMSM development project, with its Louisiana facility positioned to become North America's first battery-grade manganese producer. The project secured remarkable backing: US$166 million DOE grant, US$85 million GM debt facility with 7-year offtake, and US$30 million from Stellantis.
The Butcherbird expansion in Western Australia underpins the strategy, with the January 2025 Feasibility Study confirming 274 Mt at 10% Mn and expansion to 1.1 Mtpa concentrate. All-in sustaining costs of US$3.22/dmtu and a 96% pre-tax IRR demonstrate attractive unit economics.
| Element 25 Metric | Value |
|---|---|
| Butcherbird Resource | 274 Mt @ 10% Mn |
| Expansion Capex | A$64.8 million |
| Butcherbird NPV | A$561 million |
| Louisiana Capex | US$290-480 million |
| GM Offtake Volume | 65% of production |
| Cost Position (AISC) | US$3.22/dmtu |
| CO₂ Footprint | 67% lower than China HPMSM |
The GM offtake (2025-2032) provides revenue certainty, while IRA compliance positions Element 25 for US EV supply chain incentives. Environmental credentials—1.7kg CO₂/kg HPMSM versus 5.2kg for Chinese peers—add ESG appeal.
South32 (S32.AX) controls approximately half of global high-grade manganese supply through GEMCO (60% stake) and South Africa operations. GEMCO's cyclone recovery completed in May 2025 with exports resumed and FY26 production guidance of 5.2 million wet metric tonnes. The group's A$12-15 billion market cap and US$1.9 billion EBITDA provide stability, though manganese represents only ~15-20% of group earnings.
Eramet (ERA.PA) operates Comilog in Gabon—the world's largest manganese mine producing 5.5 Mt annually. Manganese contributes 60% of adjusted turnover (split between ore at 33% and alloys at 27%). The €814 million 2024 adjusted EBITDA and 1.8x leverage demonstrate financial strength, but Gabon political risk following the 2023 military coup and recent export restrictions demand careful monitoring.
MOIL Limited (MOIL.NS) dominates India with ~50-53% domestic market share and 1.8 Mt annual production—its highest-ever. The government PSU trades at ~22x P/E with a 1.7-2.3% dividend yield. Expansion plans target doubling production by 2030, though the EMD plant (1,000 tpy) represents only modest battery-grade capability.
Electric Metals USA (EML.V) completed its August 2025 PEA for the North Star/Emily deposit in Minnesota—North America's highest-grade manganese deposit. Economics are compelling: US$1.39 billion NPV, 43.5% IRR, and 23-month payback at US$2,500/tonne HPMSM. As the only 100% US-domestic project, regulatory alignment with Executive Orders on critical minerals provides strategic value, though permitting timelines remain uncertain.
Euro Manganese (EMN.V) advanced significantly through January 2025, securing its Mining Lease for Chvaletice in the Czech Republic and EU CRMA Strategic Project designation in March 2025. The US$1.34 billion NPV, 21.9% IRR economics require substantial US$757 million capex, but EU/EBRD financing access and status as the only sizable manganese resource in the EU differentiate the opportunity.
Giyani Metals (EMM.V) achieved a major de-risking milestone by commissioning its demonstration plant in Johannesburg (October 2025)—the largest HPMSM demo facility outside China. The K.Hill project in Botswana carries US$984 million NPV with $282.6 million capex. Funding of $26 million is secured (ARCH Fund, IDC South Africa), with US EXIM Bank discussions for $225 million underway.
Manganese X Energy (MN.V) kicked off its Pre-Feasibility Study in December 2025 for Battery Hill, New Brunswick. The 60.77 Mt resource at 6.5% Mn represents North America's largest carbonate manganese deposit. Eric Sprott's C$2 million commitment provides validation, but the project trails peers by 2-3 years in development timeline.
South Manganese Investment (1091.HK), formerly CITIC Dameng, provides the only pure-play Chinese manganese investment with battery-grade capability. The vertically integrated producer operates mines in Guangxi, Guizhou, and Gabon while manufacturing EMD, HPMSM, lithium manganese oxide, and NCM cathode materials. The ~HK$2.6 billion market cap (~US$330 million) offers direct exposure to China's dominant battery supply chain.
POSCO Future M (003670.KS) is Korea's battery materials champion with ~$14 billion market cap, producing NCM/NCMA cathode materials containing manganese for LG Energy Solution and Samsung SDI. Capacity expansion from 105,000 to 610,000 tonnes by 2030 drives growth, though this represents downstream processing rather than mining exposure.
Nippon Denko (5563.T) is one of only ~4 producers outside China making HPMSM from imported high-purity electrolytic manganese metal, serving Japan's battery materials sector.
Applying the specified weighting criteria across all companies produces a ranked investment framework:
| Rank | Company | Ticker | Purity (15%) | Battery (20%) | Cost (15%) | Leverage (15%) | Growth (10%) | Balance Sheet (10%) | Jurisdiction (10%) | Valuation (5%) | Total Score |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Element 25 | E25.AX | 14 | 18 | 12 | 14 | 9 | 8 | 9 | 4 | 88 |
| 2 | Jupiter Mines | JMS.AX | 15 | 8 | 15 | 13 | 7 | 10 | 7 | 4 | 79 |
| 3 | Electric Metals USA | EML.V | 15 | 17 | 12 | 14 | 8 | 5 | 10 | 4 | 85 |
| 4 | Giyani Metals | EMM.V | 14 | 16 | 11 | 13 | 8 | 6 | 8 | 4 | 80 |
| 5 | Euro Manganese | EMN.V | 15 | 17 | 10 | 12 | 7 | 5 | 9 | 4 | 79 |
| 6 | Firebird Metals | FRB.AX | 13 | 15 | 11 | 13 | 8 | 4 | 6 | 5 | 75 |
| 7 | South32 | S32.AX | 6 | 8 | 14 | 10 | 8 | 10 | 8 | 3 | 67 |
| 8 | Eramet | ERA.PA | 10 | 7 | 13 | 11 | 8 | 8 | 5 | 3 | 65 |
| 9 | MOIL | MOIL.NS | 14 | 6 | 10 | 10 | 7 | 9 | 7 | 4 | 67 |
| 10 | South Manganese Inv. | 1091.HK | 12 | 14 | 9 | 11 | 7 | 6 | 5 | 4 | 68 |
| 11 | Manganese X | MN.V | 14 | 12 | 8 | 12 | 6 | 4 | 9 | 4 | 69 |
| 12 | The Metals Company | TMC | 5 | 10 | 8 | 6 | 7 | 5 | 2 | 3 | 46 |
| 13 | OM Holdings | OMH.AX | 9 | 4 | 10 | 9 | 5 | 7 | 7 | 4 | 55 |
Tier 1 – Core Holdings (5-8% each)
Element 25 offers the optimal risk-adjusted battery-grade exposure. GM and Stellantis backing provides offtake certainty, DOE funding reduces capex risk, and Butcherbird expansion delivers near-term cash flow. Bull case: A$2.50-3.00 (5x current) on successful Louisiana commissioning.
Jupiter Mines delivers immediate yield plus manganese torque. The 10-13% historical dividend provides downside protection while Tshipi's first-quartile cost position (US$2.27/dmtu) ensures profitability through price cycles. Bull case: A$0.50-0.60 (2x current) on sustained US$5.00+ dmtu prices.
Tier 2 – Growth Positions (3-5% each)
Electric Metals USA represents the highest-IRR (43.5%) pure-play with US critical mineral alignment. Early-stage risk is offset by exceptional economics and policy tailwinds. Bull case: C$3.00-5.00 (5-8x current) on PFS confirmation and US government support.
Giyani Metals is significantly de-risked by the operational demo plant—the largest HPMSM facility outside China. Botswana jurisdiction and US EXIM interest provide financing pathways. Bull case: C$1.50-2.00 (4-5x current) on DFS and financing closure.
Euro Manganese uniquely benefits from EU CRMA designation and strategic project status. The ESG waste-remediation narrative and EU Battery Regulation alignment attract impact capital. Bull case: C$1.00-1.50 (3-4x current) on offtake finalization and EIB financing.
Tier 3 – Tactical Positions (2-3% each)
Firebird Metals offers China HPMSM access and LMFP technology optionality at micro-cap valuation. Eramet MOU and Chinese government support de-risk the pathway. Bull case: A$0.50-0.75 (3-5x current) on China commissioning.
MOIL provides India exposure with government backing and 50%+ market share. Modest growth profile limits upside but state ownership reduces tail risk. Bull case: ₹350-400 (1.5x current) on production doubling.
South Manganese Investment (1091.HK) offers direct Chinese battery-grade exposure for investors comfortable with HKEX risk. Vertical integration from mining to NCM cathodes differentiates. Bull case: HK$3.50-4.50 (2x current) on battery segment growth.
Tier 4 – Speculative Positions (1-2% max)
The Metals Company requires regulatory breakthrough for value realization. The 28% manganese revenue share dilutes pure-play thesis, while opposition from 40+ countries and 60+ corporations creates existential permitting risk. The EV/NPV of 0.12x reflects appropriate skepticism. Bull case: $15-25 (2-3x current) IF US permits are granted and environmental opposition moderates—but probability-weighted expected value is negative given 60%+ failure probability.
Manganese X trails peers by 2-3 years but Eric Sprott backing and North American strategic location provide optionality. Hold minimal position pending PFS results.
TMC: NOAA permit decision (expected mid-2026); ISA mining code progress; environmental litigation filings; Glencore/Korea Zinc offtake extensions
Element 25: Louisiana construction milestones; first HPMSM production; GM delivery commencement; Butcherbird expansion commissioning
Jupiter Mines: Tshipi 4.0 Mtpa expansion announcement; Kalahari consolidation M&A; HPMSM processing decision; Exxaro stake acquisition completion
Firebird Metals: China plant commissioning; Eramet binding agreement; Oakover mining proposal approval; Stage 2 financing
HPMSM Market: LMFP adoption rates (currently 35,000 tonnes in 2025, targeting 1.3Mt by 2030); pricing trajectory (current $800-850/t spot vs $2,500-4,200/t project assumptions); Western capacity additions
Policy: US IRA implementation; EU CRMA project financing; India battery PLI scheme; China export restrictions
The manganese investment landscape has expanded significantly beyond traditional steel-focused producers. Battery-grade HPMSM represents the high-value growth segment, with demand projected to increase 9x by 2030 and 29x by 2050—the fastest growth of any battery metal. China's 95-96% HPMSM dominance creates strategic imperative for Western supply chain diversification.
Element 25 and Jupiter Mines form the core portfolio foundation—combining near-term cash generation with battery-grade transformation optionality. Electric Metals USA and Giyani Metals offer the highest risk-adjusted upside among developers, with exceptional economics and de-risking milestones achieved.
The Metals Company warrants only speculative allocation despite its massive resource base. Regulatory uncertainty—with 40+ countries opposed and no commercial deep-sea mining permit ever issued globally—creates binary outcome risk inappropriate for significant capital allocation. The 28% manganese revenue contribution also dilutes the pure-play thesis relative to terrestrial alternatives.
Firebird Metals offers an overlooked opportunity at micro-cap valuations, with its China-based HPMSM strategy providing differentiated exposure to LMFP cathode demand growth. The Eramet partnership and Chinese government support reduce execution risk despite the funding gap.
Portfolio construction should emphasize pure-play exposure through Jupiter Mines and Element 25, tactical battery-grade optionality through developers, and limited speculative positions in higher-risk opportunities like TMC. Total manganese allocation of 10-15% of a resources portfolio captures the supply shortage thesis while managing individual company risks.