DRC Lithium — Manono and the Hard-Rock Lithium Frontier

The Manono Deposit — Scale and Geology

The Manono lithium project in the Tanganyika Province of the Democratic Republic of Congo is one of the largest hard-rock lithium deposits ever discovered. The Roche Dure pegmatite, the deposit's primary mineralised zone, hosts a mineral resource that independent geological assessments have estimated at over 400 million tonnes of ore grading approximately 1.65 percent lithium oxide (Li2O). The sheer scale of this resource — measured in hundreds of millions of tonnes rather than the tens of millions typical of commercially viable lithium pegmatites — places Manono in a category occupied by very few deposits globally.

Manono is hosted in a lithium-caesium-tantalum (LCT) pegmatite, a geological formation that represents the most concentrated natural source of lithium in hard-rock settings. LCT pegmatites are igneous intrusions enriched in rare elements during the late stages of magmatic crystallisation, forming coarse-grained rock bodies that can contain spodumene (the primary lithium-bearing mineral), tantalum-bearing columbite-tantalite, caesium-bearing pollucite, and tin-bearing cassiterite. The Roche Dure pegmatite is notable not only for its lithium content but for the exceptionally large crystals of spodumene it contains — some exceeding 10 metres in length — reflecting the geological conditions that produced an unusually well-mineralised and well-preserved pegmatite body.

The deposit's grade, while important, is only part of the equation. The Roche Dure ore body outcrops at surface and extends to depth, offering the potential for both open-pit and underground mining. The weathered surface zone contains partially altered spodumene that may be amenable to direct shipping ore (DSO) production, meaning that initial output could potentially commence with minimal processing infrastructure. The deeper, fresher pegmatite would require conventional hard-rock mining and spodumene concentration through dense media separation — a well-understood processing route used at lithium operations in Australia and elsewhere.

Tin and Tantalum Credits

Manono's economic potential extends beyond lithium. The pegmatite contains significant concentrations of tin (as cassiterite) and tantalum (as columbite-tantalite), both of which are valuable co-products that improve the project's financial profile. The DRC is already a significant producer of both tin and tantalum, and the recovery of these metals alongside lithium would generate additional revenue streams while contributing to the global supply of two minerals classified as critical by both the United States and the European Union.

The AVZ Minerals Saga

The development of Manono has been dominated by the protracted corporate and legal drama surrounding AVZ Minerals, the Australian-listed company that holds the project's exploration and mining rights. AVZ acquired its initial stake in the Manono project through its Congolese subsidiary Dathcom Mining, which holds a 75 percent interest in the project's mining permit (Permis de Recherche 13359), with the DRC state mining company Cominière holding the remaining 25 percent.

AVZ's plan was to develop Manono as a large-scale lithium mine, producing spodumene concentrate for export to battery manufacturers. The company completed a definitive feasibility study (DFS) that outlined a project capable of producing approximately 700,000 tonnes of spodumene concentrate per year — a volume that would make Manono one of the world's largest lithium operations and a significant contributor to global supply. The DFS projected robust economics: low operating costs reflecting the deposit's favourable geology, combined with strong lithium price assumptions that prevailed during the 2021-2022 lithium boom.

The CITIC Metal Intervention

CITIC Metal, a subsidiary of the Chinese state-owned CITIC Group, became involved in the Manono project through a series of transactions that have been the subject of intense dispute. CITIC Metal acquired a 15 percent interest in Dathcom Mining, the project-holding company, through a deal with Cominière that AVZ contested as unlawful. AVZ alleged that the sale of Cominière's interest to CITIC Metal was conducted without proper authorisation and in violation of AVZ's pre-emption rights under the joint venture agreement.

The involvement of a Chinese state-linked entity in one of the world's largest undeveloped lithium deposits immediately elevated the dispute from a commercial disagreement to a geopolitical confrontation. The contest for control of Manono reflects the broader competition between Chinese and Western interests for access to critical mineral resources in the DRC — the same competition that plays out in the cobalt sector through China's systematic acquisition of Copperbelt mining assets.

Legal and Regulatory Labyrinth

The ownership dispute has generated legal proceedings across multiple jurisdictions. AVZ initiated arbitration at the International Chamber of Commerce (ICC) in Paris, challenging CITIC Metal's acquisition of the Dathcom stake. The DRC's mining cadastre authority (CAMI) suspended the processing of Manono's mining licence application while the ownership dispute remained unresolved. The DRC government, through various ministries and agencies, has issued contradictory statements about the project's status, reflecting both the complexity of the legal issues and the political pressures exerted by the competing parties.

The suspension of the mining licence has effectively frozen the project. Without a valid mining licence, no construction can commence, no financing can be finalised, and the deposit remains undeveloped regardless of its geological merit. The years-long delay has cost AVZ shareholders significantly — the company's share price has declined dramatically from its 2022 peak — and has deprived the DRC of the investment, employment, and tax revenue that a producing Manono mine would generate.

Development Challenges

Even if the ownership dispute is resolved, the development of Manono faces formidable practical challenges that reflect the broader difficulties of major mining projects in the DRC's interior provinces.

Infrastructure Deficit

Manono is located in Tanganyika Province, one of the most remote and infrastructure-poor regions of the DRC. The town of Manono, which was once a significant tin mining centre during the colonial era, has seen decades of economic decline and infrastructure deterioration since the cessation of industrial tin mining in the 1980s. Road access is limited and unreliable, particularly during the rainy season when unpaved roads become impassable. There is no rail connection to the site. The nearest rail infrastructure is the existing DRC rail network that connects to the Copperbelt — hundreds of kilometres to the south — and the condition of that network is itself a subject of ongoing rehabilitation efforts.

Power supply is perhaps the most critical infrastructure gap. Hard-rock lithium mining and spodumene concentration are energy-intensive operations, and the existing electricity grid in Tanganyika Province is wholly inadequate to support an industrial operation of the scale envisaged for Manono. AVZ's feasibility study assumed the construction of dedicated power infrastructure, potentially including a hydroelectric project on a nearby river system, but the cost and timeline of power development add significantly to the project's capital requirements and construction schedule.

Logistics and Export Route

Spodumene concentrate produced at Manono would need to be transported over long distances to reach an export port. The most direct route would involve trucking concentrate south to the DRC-Zambian border, then transporting it through Zambia to one of several possible ports: Dar es Salaam (Tanzania), Beira (Mozambique), Durban (South Africa), or — via the Lobito Corridor — the Port of Lobito (Angola). Each route involves thousands of kilometres of overland transport, significant border-crossing delays, and per-tonne logistics costs that can reach $100 to $200 or more.

The corridor connection is indirect but potentially transformative. If the DRC's internal rail network between Tanganyika Province and the Copperbelt is rehabilitated — a project that has been discussed but not funded at scale — Manono concentrate could reach the Lobito Corridor's rail system and transit westward to Lobito. This route would provide a shorter shipping distance to European markets compared to the eastern routes and would integrate Manono into the Western-aligned supply chain that the corridor is designed to create.

Political and Governance Risk

The Manono saga illustrates the governance risks that foreign investors face in the DRC's mining sector. The government's inability or unwillingness to resolve the ownership dispute in a timely and transparent manner has damaged investor confidence and raised questions about the security of mining rights in the DRC. The involvement of multiple government agencies with overlapping and sometimes contradictory jurisdictions — the Ministry of Mines, CAMI, Cominière, and various provincial authorities — creates a regulatory environment where clarity is difficult to achieve and where well-connected actors can manipulate institutional processes to advance their commercial interests.

These governance challenges are not unique to Manono. They are systemic features of the DRC's mining sector that affect operations across the country, from the Copperbelt's copper-cobalt mines to the eastern provinces' tin and tantalum operations. Addressing them requires institutional reform that goes beyond any single project — reform of the mining cadastre, strengthening of the judiciary, clarification of jurisdictional boundaries, and enforcement of contractual obligations. The DRC government's willingness and capacity to undertake such reform will determine whether Manono and other major mining projects can proceed to development or remain mired in legal and regulatory limbo.

Comparison with Australian and Chilean Lithium

Manono's scale invites comparison with the world's major lithium-producing regions: the spodumene mines of Western Australia and the lithium brine operations of Chile and Argentina.

Australian Hard-Rock Lithium

Western Australia's Pilbara and Goldfields regions host the world's largest cluster of producing hard-rock lithium mines, including Greenbushes (operated by Talison Lithium, a joint venture between Tianqi Lithium and Albemarle), Pilgangoora (Pilbara Minerals), Wodgina (Mineral Resources and Albemarle), and Mt Cattlin (Allkem/Arcadium Lithium). These operations collectively produce more than half of the world's hard-rock lithium, primarily as spodumene concentrate grading 5.5 to 6 percent Li2O.

Manono's resource tonnage exceeds that of any individual Australian deposit. However, the Australian operations benefit from decades of infrastructure development, proximity to ports, reliable power supply, experienced workforces, and a regulatory environment ranked among the world's most favourable for mining investment. These advantages translate into lower development risk, faster time-to-production, and lower capital cost per tonne of capacity. A new lithium mine in Western Australia can proceed from permitting to production in approximately 3 to 5 years; Manono's equivalent timeline, given its infrastructure deficits and ownership disputes, could be 7 to 15 years or more.

South American Brine Lithium

Chile's Salar de Atacama, operated by SQM and Albemarle, and Argentina's burgeoning lithium brine sector produce lithium through the evaporation of lithium-rich brines pumped from underground aquifers beneath salt flats. Brine operations have structurally lower operating costs than hard-rock mines — the lithium is already in solution, and solar evaporation provides "free" concentration energy — but they require 12 to 24 months of evaporation time, have lower lithium recovery rates, and face increasing water-use constraints in the arid Andean environments where they operate.

Manono's hard-rock spodumene offers faster ramp-up potential (no evaporation lag) and higher lithium recovery rates than brine operations. However, brine lithium's lower operating cost establishes a price floor that hard-rock operations must exceed to remain competitive. During the 2023-2024 lithium price collapse, several Australian hard-rock producers curtailed or suspended operations because their costs exceeded market prices, while South American brine operations continued to profit. Manono's operating costs, once in production, would depend heavily on logistics costs and power availability — the two factors that the DRC's infrastructure deficit makes most uncertain.

Corridor Connection and Strategic Significance

Manono's strategic significance extends beyond its geological scale. The deposit represents a potential non-Chinese source of lithium from the African continent — the last major geological province to enter the global lithium supply chain. If developed by a Western-aligned operator and connected to Western markets through the Lobito Corridor or an alternative export route, Manono could provide the lithium supply diversity that Western battery manufacturers and automakers urgently require.

The IRA's critical mineral sourcing requirements create a financial incentive for lithium produced and processed outside China. Spodumene concentrate from Manono, if processed into lithium hydroxide at a non-Chinese refinery (whether in Australia, Europe, or potentially within the corridor itself), would qualify for IRA compliance. The EU's Critical Raw Materials Act creates similar incentives for European manufacturers. These regulatory frameworks effectively create a two-tier lithium market in which non-Chinese lithium commands a premium over lithium that transits through Chinese processing — a premium that improves the economics of African lithium projects relative to their nominal cost competitiveness.

The Broader DRC Lithium Province

Manono is the flagship but not the sole lithium prospect in the DRC. The pegmatite geology that hosts Manono extends across a broader region of Tanganyika and adjacent provinces, and exploration programmes have identified additional lithium-bearing pegmatites in the area. Tantalex Lithium Resources, Kisanfu Mining, and other junior explorers hold concessions in the broader Manono district and in other pegmatite provinces across the eastern DRC. If Manono proves the viability of DRC lithium, these satellite deposits could contribute additional production, creating a lithium mining district analogous to the copper-cobalt Copperbelt to the south.

The development of a DRC lithium sector would further strengthen the case for Lobito Corridor investment in the internal transport links that connect the DRC's interior provinces to the Copperbelt and thence to the corridor's main rail line. Lithium, unlike copper, is a relatively low-volume, high-value commodity — a tonne of spodumene concentrate is worth approximately $800 to $2,500, depending on lithium prices — that can bear higher transport costs per tonne than bulk copper. This means that even suboptimal road transport can be economically viable in the near term, with rail connections providing cost reduction as volumes grow.

The resolution of the Manono ownership dispute will be a test case for the DRC's ability to manage competing foreign interests in its critical mineral sector. The outcome — whether a Chinese-aligned, Western-aligned, or joint development model emerges — will signal the direction of the DRC's lithium policy and, by extension, its willingness to integrate into the Western-backed supply chain architecture that the Lobito Corridor represents. For Western policymakers and mineral strategists, Manono is a deposit that is too large and too strategically significant to concede to Chinese control by default. For the DRC government, it is an asset whose management will define the country's credibility with international investors for years to come.

Resource estimates reflect published geological reports. The ownership dispute and regulatory status are subject to ongoing proceedings. AVZ Minerals and CITIC Metal are publicly listed companies whose corporate disclosures should be consulted for the most current information. This content is for informational purposes only and does not constitute investment advice.