Tanzania Ministry of Minerals: Mtisi River mining suspension and nationwide TSA compliance review (14 May 2026)

Mechanism

On 14 May 2026, Minister for Minerals Anthony Mavunde conducted an on-site inspection of mining operations along the Mtisi River in the Katavi Region of Tanzania (covering Mpanda Municipality and Nsimbo District Council). The inspection revealed multiple simultaneous regulatory breaches:

1. Environmental violations: Mining operations were being conducted along the river without environmental management plans or permits from the National Environment Management Council (NEMC), in direct violation of environmental-compliance requirements under Tanzanian mining law.

2. TSA-framework violations: Foreign nationals were operating machinery directly at the sites — a practice explicitly prohibited by the Mining Act Cap. 123 (R.E. 2019). The Act restricts the role of foreign parties participating under Technical Support Agreements (TSAs) to advisory, technical, and support functions; principal operation of equipment is reserved for Tanzanian licence-holders. The inspected sites showed foreign investors acting as de-facto operators rather than technical advisors, in breach of the TSA legal architecture.

Mavunde issued two operative orders from the site:

• Mtisi River suspension: Immediate halt to all mining activities along the Mtisi River pending

remediation and regulatory compliance.

• Nationwide TSA review: All Resident Mining Offices across Tanzania were directed to conduct

a systematic review of every TSA in force between local small-scale miners and foreign investors, with instructions to verify (a) legal compliance with the advisory/technical-support-only restriction, and (b) that each agreement genuinely delivers economic benefit to Tanzanian citizen partners rather than serving as a cover for foreign-principal operations.

Additionally, the Minister announced that three large exploration licences from the 15 April 2026 batch revocation (188,000 ha under 2026-04-15-tanzania-mavunde-40-mineral-licences-revocation) will be reallocated to small-scale miners in Katavi Region under the Mining for a Brighter Tomorrow (MBT) framework.

Downstream implications

• The nationwide TSA review represents a qualitative escalation beyond the 15 April mass-revocation:

rather than removing dormant exploration titles, this directive targets active operating sites where foreign investors are alleged to have exceeded TSA-authorised roles.

• The TSA framework underpins a large share of small-scale-mining FDI from Chinese, Indian, Lebanese,

Australian, and South African investors, who commonly partner with Tanzanian primary licence-holders via TSA structures. A systemic national review that results in widespread cancellations or restructuring of TSAs would materially reshape the legal architecture of foreign-invested artisanal and small-scale mining (ASM) across Tanzania's gold, gemstone (tanzanite, rubies, spinel), and graphite sectors.

• The Mtisi River suspension is geographically bounded (Katavi Region), but the nationwide TSA

review applies to the full >1.5M-person small-scale-miner population and their foreign-investor partnerships country-wide.

• This directive operationalises enforcement of the Mining (Local Content) (Amendment) Regulations

2025 (GN 563/2025) by adding executive enforcement teeth to TSA oversight; previously, the TSA restriction was embedded in the Mining Act but rarely enforced through ministerial on-site inspections at this level.

• Demonstrates an escalating enforcement cadence under Mavunde: administrative-tier mass-revocation

(15 April) → operational-tier site-suspension + national TSA-framework review (14 May), consistent with the shift toward digital-cadastre algorithmic enforcement signalled on 16 April 2026.

• Peers structurally to Burkina Faso SOPAMIB nationalisation (BF), Mali Loulo-Gounkoto provisional

state administration, and the broader African resource-nationalism enforcement cluster.

Open questions

• Scope and timeline of the nationwide TSA review: which ministry office administers, what are the

criteria for non-compliance finding, and what remedies (restructuring vs. cancellation) will apply.

• Whether NEMC will issue a formal cease-order for the Mtisi River sites or whether the ministerial

suspension is legally self-executing under Mining Act Cap. 123.

• Whether any specific named foreign-investor partnerships were identified during the Katavi inspection

or whether the violations were documented anonymously.

• Timeline for MBT reallocation of the three Katavi exploration licences and which small-scale-miner

groups or cooperatives will qualify.