Tanzania rare earth development is dominated by a single question: whether the Ngualla Carbonatite — one of the world’s largest neodymium-praseodymium deposits — will serve Western supply chains or Chinese processing networks. Shenghe Resources’ acquisition bid for majority owner Peak Rare Earths, launched in May 2025, has made that question geopolitically urgent.
Tanzania Rare Earth Deposits — The Ngualla Carbonatite
The Ngualla Carbonatite sits in Tanzania’s Songwe Region, approximately 147km from Mbeya near the edge of the East African Rift Valley. The JORC-compliant mineral resource stands at 176 million tonnes grading 2.24% total rare earth oxide (TREO), with a high-grade zone averaging 4.29% TREO. Ore reserves are confirmed at 18.1 million tonnes for concentrate production.
Ngualla is an NdPr-dominant deposit. Neodymium and praseodymium — the elements that make permanent magnets for electric vehicle motors and wind turbines — account for the majority of recoverable value. For current benchmark pricing, see the neodymium price tracker and praseodymium price tracker. Ngualla’s high-grade concentrate product reaches approximately 45% REO, with processing targeting approximately 24,000 tonnes REO per year at estimated cash operating costs of $17.42/kg REO.
A significant fluorspar discovery at Ngualla — 80 metres at 30.8% CaF₂ — adds multi-commodity upside to the project’s economics, though the primary investment thesis remains NdPr production.
Ngualla Project: Development Status and Timeline
Ngualla is operated by Mamba Minerals Corporation Ltd (MML), 84% owned by Peak Rare Earths (ASX: PEK) via its wholly owned UK subsidiary Ngualla Group UK. The Government of Tanzania holds the remaining 16% free-carried interest — standard under Tanzania’s mining framework.
The Special Mining Licence was granted in April 2023. Capital expenditure is estimated at approximately $320 million, with a projected mine life of 24-plus years. At a May 2025 government meeting, Mamba Minerals and Shenghe Resources committed to a construction start by December 2025 and first production by end-2026, subject to financing and completion of Shenghe’s acquisition of Peak Rare Earths. Both targets carry execution risk and remain subject to revision.
Ngualla’s development trajectory makes it the most advanced rare earth project in Africa and one of the largest NdPr deposits tracked in any global ranking. It features in the top 10 rare earth deposits worldwide by resource scale.
Tanzania Rare Earth and the Shenghe Question
Shenghe Resources — a Chinese state-linked rare earth producer — holds a 19.7% stake in Peak Rare Earths and launched a full acquisition bid in May 2025, offering approximately A$97 million for the remaining shares. If completed, Ngualla would pass to Chinese control, the most direct pathway to dominance over an African NdPr asset of this scale.
The offtake structure compounds the geopolitical picture. Peak signed a binding offtake agreement under which Shenghe (Singapore) Pte Ltd purchases 100% of Ngualla’s rare earth concentrate, with an option covering up to 50% of intermediate and final products. This means Ngualla’s output is earmarked for Chinese processing regardless of the acquisition outcome. Analysts have described the arrangement as positioning Shenghe as a structural gatekeeper of this strategic African resource.
For investors and procurement professionals tracking Western supply chain diversification, Ngualla’s trajectory illustrates a recurring pattern: China acquires or secures offtake rights to African REE output before Western governments engage. Tanzania’s flagship critical minerals asset has moved toward Chinese control at a pace that contrasts sharply with the government-to-government engagement seen in Malawi, where the US International Development Finance Corporation and EU have taken active roles. The broader supply chain risk context is covered in the top 10 rare earth supply chain risks.
Tanzania’s Mining Regulatory Framework
Tanzania is an established mining jurisdiction with operational gold, tanzanite, and diamond sectors. The Tanzania Mining Commission is the active regulatory body and approved the Shenghe-Peak offtake agreement. Tanzania’s government has designated critical minerals a strategic development pillar, and the 16% free-carried interest in Ngualla is consistent with the country’s standard mining framework rather than a project-specific concession.
As of 2026, Tanzania has no operating rare earth mine. That position is shared across the African continent — no rare earth project on the continent has reached commercial production. Fitch Solutions projects Africa could account for approximately 7% of global rare earth production by 2034, with Tanzania’s Ngualla as the most likely first contributor to that figure.
Tanzania Rare Earth Outlook
The production timeline for Tanzania rare earth output depends primarily on two variables: financing for the approximately $320 million capex, and the outcome of Shenghe’s acquisition of Peak Rare Earths. Both remain unresolved as of mid-2026. The December 2025 construction start and end-2026 first production targets announced at the May 2025 government meeting are ambitious; slippage on either financing or corporate approvals would push commercial production into 2027 or later.
If Ngualla reaches production on its current trajectory, it would be a significant milestone — Africa’s first commercial-scale rare earth mine — but its output would flow into Chinese downstream processing under the existing offtake agreement. Whether that outcome serves Western critical minerals strategies depends on policy responses that, as of 2026, have not materialised at the Tanzania level.
This article is for informational purposes only and does not constitute investment advice. Prices and project timelines are subject to change without notice.
What rare earth deposits does Tanzania have?
Tanzania’s primary rare earth deposit is the Ngualla Carbonatite in the Songwe Region, with a JORC resource of approximately 176 million tonnes grading 2.24% total rare earth oxide. The deposit is NdPr-dominant, with a high-grade zone averaging 4.29% TREO. No other advanced rare earth projects have been identified in Tanzania as of 2026.
Who owns the Ngualla rare earth project in Tanzania?
Ngualla is operated by Mamba Minerals Corporation Ltd (MML), 84% owned by Peak Rare Earths (ASX: PEK) via its UK subsidiary Ngualla Group UK. The Government of Tanzania holds a 16% free-carried interest. Shenghe Resources, a Chinese state-linked producer holding 19.7% of Peak Rare Earths, launched a full acquisition bid for the company in May 2025 — if completed, effective control of Ngualla would transfer to Shenghe.
Is Tanzania producing rare earths?
No. As of 2026, Tanzania has no operating rare earth mine, and no rare earth project in Africa has reached commercial production. The Ngualla project holds a Special Mining Licence granted in April 2023, with a construction target announced for late 2025 and first production targeted for end-2026, subject to financing and corporate approvals.
What is the Shenghe Resources connection to Tanzania rare earths?
Shenghe Resources (a Chinese state-linked rare earth company) is connected to Ngualla via two mechanisms: a binding offtake agreement under which Shenghe purchases 100% of Ngualla’s rare earth concentrate output, and a May 2025 acquisition bid for Peak Rare Earths (the majority owner of Ngualla’s operator). If the acquisition completes, effective control of Tanzania’s flagship rare earth asset would transfer to Chinese ownership.
What is the outlook for Tanzania rare earth production?
First production at Ngualla is targeted for end-2026, though this depends on completing approximately $320 million in project financing and resolving the Shenghe acquisition of Peak Rare Earths. Fitch Solutions projects Africa could supply approximately 7% of global rare earth production by 2034, with Ngualla the most likely primary contributor. Timeline slippage into 2027 or later is possible if financing or corporate approvals are delayed.
