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On 14 May 2026, following an on-site inspection of mining operations in Mpanda Municipality and Nsimbo District Council in Tanzania's Katavi Region, Minister for Minerals Hon. Anthony Mavunde ordered the immediate suspension of all mining activities along the Mtisi River after inspectors found severe environmental degradation, absence of environmental management plans and NEMC permits, and foreign nationals operating machinery directly — in violation of the Mining Act Cap. 123 (R.E. 2019), which restricts foreign parties under Technical Support Agreements (TSAs) to advisory and technical-support roles only. Mavunde simultaneously directed all Resident Mining Offices nationwide to conduct a review of every TSA between local small-scale miners and foreign investors to verify legal compliance and ensure that agreements genuinely benefit Tanzanian citizens. Three large exploration licences recently revoked (linked to the 15 April 2026 mass-revocation) are to be reallocated to small-scale miners in Katavi Region under the Mining for a Brighter Tomorrow (MBT) framework.

The Government of Tanzania signed a Development Agreement with Panda Hill Tanzania Limited (a subsidiary of US-based Denham Capital / Tremont Investments) on 24 March 2026 in Mbeya to develop the Panda Hill niobium and ferroniobium project in the Mbeya/Songwe region. Under the agreement, the Government holds a 16% non-dilutable free carried interest in the project special-purpose vehicle, with Panda Hill Tanzania Limited committing to an initial capital investment of USD 442 million to construct Tanzania's first niobium mine and ferroniobium smelting plant — the first ferroniobium processing facility in Africa. At full production, the project is expected to supply approximately 4–5% of global niobium demand, generating USD 686 million in lifetime government revenues (royalties, taxes, and 16% equity dividends), positioning Tanzania among the world's top-four niobium producers alongside Brazil's CBMM, Canada's Niobec, and China Molybdenum.

The Minister of Minerals published Government Notice No. 692 of 2025 on 19 December 2025, amending the Mining (Corporate Social Responsibility) Regulations 2023 (GN 409/2023) made under section 105 of the Mining Act, Cap. 123. Key operative changes include restructuring the CSR Expert Committee, imposing statutory 14-day timelines for plan revision and ministerial submission, enhancing licensee financial-reporting obligations, and granting explicit corrective-action authority against underperforming contractors. All Tanzanian mining licensees — including Barrick (North Mara, Bulyanhulu), AngloGold Ashanti (Geita), and Petra Diamonds (Williamson) — are subject to the tightened compliance framework.

Tanzania's Minister for Minerals issued the Mining (Local Content) (Amendment) Regulations, 2025 via Government Notice No. 563 of 2025, published on 12 September 2025 and in force on the same day with no grace period. The amendment overhauls the Mining (Local Content) Regulations, 2018 (GN No. 3 of 2018) and introduces a new Regulation 13A empowering the Tanzania Mining Commission to publish — in the Gazette, on its website, and in nationwide media — a list of "reserved" goods and services that may be supplied only by an Indigenous Tanzanian Company (ITC) that is 100% Tanzanian-owned (no joint venture permitted in those reserved categories). For non-reserved categories, non- indigenous suppliers must form a JV with an ITC operating in the same line of business in which the ITC holds at least 20% equity, with the JV agreement subject to prior Mining Commission approval. Sole-sourced contracts above ~USD 10,000 must be notified to the Commission, and Local Content Plans must now include Banking Services and Procurement sub-plans, channelling mining-related financial transactions through Tanzanian-registered banks.

Tanzania's Parliament enacted the Finance Act, No. 11 of 2025 on 30 June 2025 (presidential assent same day), in force 1 July 2025, introducing three structurally distinct amendments to the Mining Act, Cap. 123 that sit on top of the 2024-11-05 Written Laws (Miscellaneous Amendments) (No. 4) Act and the 2025-09-12 Mining (Local Content) (Amendment) Regulations GN 563/2025. (i) New Section 113A creates an "HIV Response Levy" at 0.1% of gross mineral value, payable concurrently with mineral royalty by all mineral-right holders and licensees, allocated 70% to the AIDS Trust Fund (under the Tanzania Commission for AIDS Act, Cap. 379) and 30% to the Universal Health Insurance Fund (under the Universal Health Insurance Act, No. 12 of 2023). (ii) Section 59 of the Mining Act is amended to extend the 20% local-value-addition gold-allocation requirement (mandatory supply of refined gold to domestic smelting, refining, and trading operators) from holders of mineral-development agreements to **all** gold-licence holders with no carve-out. (iii) The withholding-tax rate on non-resident service providers under Section 60 is raised to 10% to incentivise use of local service providers. The amendments combine a new social-fund mineral levy, a horizontal expansion of the domestic-beneficiation mandate, and a tax-side push for service localisation — adding a fiscal-instrument layer on top of the 2024-25 critical-minerals classification and 2025 local-content reservation framework.

Tanzania's Parliament enacted Act No. 5 of 2017, the Natural Wealth and Resources (Permanent Sovereignty) Act, as part of a landmark resource-nationalism legislative trio (alongside Act No. 6 on unconscionable contract renegotiation and Written Laws Miscellaneous Amendments No. 7), signed into law by President John Magufuli on 4 July 2017. The Act vests all of Tanzania's natural wealth and resources — minerals, oil and natural gas, fisheries, wildlife, forestry, water, and related sub-surface assets — as the permanent and inalienable property of the People of the United Republic, held in trust by the President on their behalf. Key operative provisions prohibit international commercial arbitration of natural-resource disputes (mandating adjudication within Tanzanian courts under Tanzanian law), empower Parliament to review and require renegotiation of any natural-resource arrangement containing "unconscionable terms," impose an in-country banking rule on earnings from natural wealth extraction, and authorise statutory override of contractual stabilisation clauses embedded in pre-2017 mining development agreements. The Act is the foundational parent statute underpinning all subsequent Tanzanian mining-sector reform, including the 2024 Written Laws (Miscellaneous Amendments) (No. 4) Act critical/strategic minerals classification and the 2025 Finance Act mining amendments.