GCLA Chemical Registration for Mines: Mercury, Cyanide and Permits After the Geita Warning
Who needs GCLA chemical registration in mining? On Mainland Tanzania, anyone who imports, exports, stores, transports, deals in or uses a regulated chemical such as mercury or sodium cyanide must register with the Government Chemist Laboratory Authority, hold a certificate and use registered premises. Importers also need a permit for every consignment. This comes from the Industrial and Consumer Chemicals Act, Cap. 182, and its 2020 Regulations.
GCLA used the national mining technology exhibition in Geita, which ended in early October 2026, to warn miners and processors about unsafe chemical handling. The rules behind that warning are not new. What follows sets out who needs which certificate and permit, what it costs at the official rate, and how the Mining Commission, NEMC, OSHA and Zanzibar fit around it.
What did GCLA say to Geita miners?
On 1 October 2026, The Respondents reported that the Government Chemist Laboratory Authority (GCLA) had warned miners and mineral processors in Geita about unsafe chemical use. The warning came at the ninth National Mineral Technology and Investment Exhibition, held at the Dkt Samia Suluhu Hassan grounds in Geita Municipality. Michuzi reported on 26 September 2026 that the exhibition was due to run from 27 September to 3 October 2026.
The GCLA Lake Zone Manager, John Wanjara, said stronger controls are needed to protect workers, surrounding communities and the environment. He named mercury as one of the key concerns in mineral processing. He explained that GCLA registers stakeholders, chemicals and the premises where chemicals are used, inspects mining and processing operations, and educates miners on handling, storage and use. Jamhuri Media carried the same account on 1 October 2026, including his statement that Tanzania, as a party to the Minamata Convention, aims to end mercury use by 2030.
GCLA's own website published a note the same day. In it, Deus Sangu, Minister of State in the Prime Minister's Office responsible for labour, employment and relations, said GCLA provides permits, registers and inspects all parties engaged in chemical activities. He asked that small-scale miners receive enough education on safe chemical use, because mining employs many young Tanzanians in regions such as Geita.
No new law, fee or deadline was announced. The warning is a signal that GCLA intends to enforce the existing regime in mining areas. That regime is set out below.
What the law says: Cap. 182 and the 2020 Regulations
The governing statute is the Industrial and Consumer Chemicals (Management and Control) Act, Cap. 182 R.E. 2023, first enacted as Act No. 3 of 2003. GCLA publishes the revised text on its website. The detail sits in the Industrial and Consumer Chemicals (Management and Control) Regulations 2020, GN 820 of 2020, published on 2 October 2020.
Four provisions do most of the work for a mining business:
- Section 15 requires producers, importers, exporters, transporters, storage operators and dealers to apply to the Registrar for registration, in respect of a scheduled chemical above its threshold quantity.
- Section 27 bars anyone from carrying on business as a certificate holder except in premises registered by the Board. A premises registration lapses 30 days after a change in ownership of the business.
- Section 30(1) provides that a person shall not produce, import, export, store, transport or deal in chemicals without a certificate. Section 30(7) requires a separate certificate for each set of premises.
- Regulation 24 of GN 820 extends registration to users. A person who uses or produces a chemical must be registered, hold a certificate and register the company, premises and chemicals.
The Act was amended by the Written Laws (Miscellaneous Amendments) Act No. 1 of 2025, published on 22 January 2025. Part IV of that Act deals mainly with labelling to the Globally Harmonised System and with public health pesticides. It did not change the registration and certificate rules that apply to mining chemicals.
Who is affected by GCLA's chemical rules in mining?
GCLA's own registration guide lists six stakeholder types: users, distributors, transporters, importers, disposal facilities and producers or manufacturers. In mining that covers:
- Gold processing plants using sodium cyanide in vat leaching, carbon-in-leach or carbon-in-pulp circuits, including small plants run by Primary Mining Licence (PML) holders.
- Artisanal and small-scale miners who buy and use mercury for amalgamation.
- Mercury and cyanide importers and dealers, including shops in mining towns that sell small quantities onward.
- Transporters moving cyanide, ammonium nitrate, acids or mercury from Dar es Salaam port to the mining regions.
- Large mines and refineries using acids, reagents and blasting precursors, which pay the highest annual maintenance band.
- Waste and disposal contractors handling spent chemicals and contaminated packaging.
The scale is large. Daily News reported in August 2023 that GCLA had issued permits for over 11,601 tonnes of sodium cyanide imported through Dar es Salaam port in 2022. The paper said the chemical travels by road through eight regions, ending in Geita.
Who needs which GCLA certificate or permit?
The table below maps each role to its obligations under Cap. 182 and GN 820. A business that plays two roles, such as a plant that imports its own cyanide, must meet both sets.
| Role | Registration and certificate | Permits and extra duties |
|---|---|---|
| Importer or exporter | Register, hold a certificate, register premises and each chemical (reg. 5) | Import or export permit for every consignment before shipment; valid four months; certificate of analysis; name an authorised agent |
| Dealer or distributor | Register, hold a certificate; one certificate per set of premises (s.30(7)) | Register each chemical handled and each set of premises (ss.15 and 27) |
| Transporter | Register company and premises, hold a certificate (reg. 9) | Trained drivers, protective gear, safety data sheets with each load; no passengers, food or animals with scheduled chemicals (reg. 10) |
| Mine or processing plant (user) | Register company, premises and chemicals, hold a certificate (reg. 24) | Code of practice for safe use, storage to GN 820 standards, annual maintenance fee by 30 June |
| Disposal facility | Register and hold a certificate | Environmental impact assessment certificate in the registration file |
GCLA's online portal states that all chemical dealers within Tanzania Mainland must register on its Chemical Customer Management Portal, including those already registered manually. Each company may hold one account.
How do mercury rules work under the Minamata Convention?
Tanzania became a party to the Minamata Convention on Mercury on 5 October 2020, and the Convention entered into force for Tanzania on 3 January 2021. Both dates appear in Tanzania's 2025 national report to the Convention Secretariat. A Graduate Institute Geneva study of May 2025 records the same ratification date.
The Convention does not ban mercury in artisanal gold mining outright. Article 7 requires a party with more than insignificant artisanal and small-scale gold mining to take steps to reduce, and where feasible eliminate, mercury use. It must also prepare a National Action Plan and report on progress every three years, as UNEP explains in its 2023 guidance. Annex C lists worst practices that each plan must target:
- whole ore amalgamation, where mercury is added to all the ore;
- open burning of amalgam without a retort or fume hood;
- burning amalgam in residential areas;
- cyanide leaching of sediment, ore or tailings to which mercury has been added, without first removing the mercury.
The last point matters for Geita. Many small plants buy tailings left from mercury amalgamation and leach them with cyanide. That practice is one the Convention asks parties to eliminate.
Tanzania's national report describes a National Action Plan for artisanal and small-scale gold mining for 2020 to 2025, developed with UNEP under project GEF-9456, which the Vice President's Office executed. The report also names the Environmental Management (Control and Management of Mercury and Mercury Compounds) Regulations 2020 as part of the legal framework. We have not confirmed whether a successor plan for the period after 2025 has been adopted.
At home, mercury is a chemical like any other under Cap. 182. In August 2022 the then Chief Government Chemist told Daily News that anyone dealing in chemicals, including mercury, must be registered. He said ten companies were registered to import mercury at that time.
What about cyanide, acids and explosives precursors?
Sodium cyanide is the main reagent for gold recovery in tank and vat plants. Importers need a permit for each consignment. Transporters must be registered, and users must register the chemical and the premises where it is stored and used. GCLA ran a national awareness campaign on safe cyanide use in 2023.
Ammonium nitrate, the main precursor for mining explosives, has its own GCLA rules. The Guidelines for Handling and Management of Ammonium Nitrate, GCLA/G/03 of 30 July 2024 require a transport permit, a contingency plan, convoys of not more than ten vehicles under GCLA escort and quarterly reporting by importers. Finished explosives are licensed under a separate regime that this article does not cover. Dealing in explosives for mining also needs a Class A business licence from BRELA (register BLA129, TZS 1,000,000 or TZS 500,000 for a local dealer).
Acids and other reagents used in refining and assay fall under the same Act if they appear on its schedules above the threshold quantity. Whether a particular acid or reagent needs registration at your volumes is a question to put to GCLA through the portal before you buy.
What documents does GCLA ask for?
GCLA's published registration process lists the documents below, all scanned as PDF. To open a portal account you need a certificate of incorporation and a TIN.
| Document | Importer, dealer, user, storage | Transporter | Disposal facility |
|---|---|---|---|
| Introduction letter | Yes | Yes | Yes |
| Business licence | Yes | Yes | Yes |
| Academic certificate of the responsible person | Yes | Yes | Yes |
| Contingency plan, signed and stamped on every page | Yes | Yes | Yes |
| Drivers' training certificate | No | Yes | No |
| Environmental impact assessment certificate | No | No | Yes |
For an import permit, add the consignment details and the certificate of analysis required by regulation 5. A mine or plant should also keep its mineral right or processing licence, its EIA certificate and its OSHA workplace registration on file, since GCLA inspectors and other regulators often ask for them together. Our import documents pack covers the customs side of the same shipment.
What does GCLA registration cost?
The fees are set in the Fourth Schedule to GN 820. The lines below are taken from the Zatra fee register. "Large" means capital investment above TZS 5 million and "small" means below it. Pay each amount to GCLA against its GePG control number. The control number governs on the day of payment.
| Item | Official amount | Register ID |
|---|---|---|
| Chemical registration or renewal, per chemical | TZS 40,000 (large); TZS 10,000 (small) | F0745 |
| Certificate holder | TZS 200,000 (large); TZS 50,000 (small) | F0745 |
| Premises | TZS 200,000 (large); TZS 50,000 (small) | F0745 |
| Import permit, per consignment | 0.5% of FOB value or USD 20, whichever is greater | F0745, NEW-07-13 |
| Export permit, per consignment | 0.25% of FOB value or USD 10, whichever is greater | F0745, NEW-07-13 |
| Annual maintenance, large-scale mining company | USD 1,000 | NEW-07-13 |
| Annual maintenance, distributor, user or producer | USD 500 (large); USD 250 (medium) | NEW-07-13 |
| Annual maintenance, transporter | USD 1,000 (hazardous chemicals); USD 500 (general) | NEW-07-13 |
| Annual maintenance, chemical waste disposal facility | USD 1,000 | NEW-07-13 |
| Supervision of disposal or destruction of chemicals | USD 300 per person per day | F0743 |
| Laboratory analysis | Per GCLA price list | F0744 |
GN 820 also prices inspections, transport permits by tonnage, convoy escorts and an express permit service. Those lines are not yet in our register, so we list them under Figures to confirm. Our government fees handbook carries the full register.
Worked example: a small cyanide plant importing its own reagent
For example, take a Tanzanian company that holds a PML in Geita and a processing licence for a vat leaching plant. Its capital is above TZS 5 million. It plans to import 20 tonnes of sodium cyanide in one consignment, at an assumed FOB value of USD 60,000. The supplier price is our assumption for illustration.
- Register on the portal. The company opens a GCLA portal account with its certificate of incorporation and TIN, then applies as an importer and user.
- Pay registration. Sodium cyanide registration TZS 40,000, certificate holder TZS 200,000 and premises TZS 200,000 (F0745). One-off total: TZS 440,000. Each extra chemical it registers adds TZS 40,000.
- Prepare for inspection. GCLA inspects chemical premises, so the store should meet the GN 820 storage standards before the visit.
- Apply for the import permit before shipment. 0.5% of USD 60,000 is USD 300, which is more than the USD 20 floor, so the permit costs USD 300 (F0745). The permit is valid for four months.
- Use a registered transporter. The transporter holds its own certificate and pays its own permit and maintenance fees.
- Pay annual maintenance by 30 June. GCLA assigns the band. As a medium-scale user the plant would pay USD 250 a year; as large scale, USD 500 (NEW-07-13).
Other regulators charge separately. The Mining Commission processing licence application is TZS 150,000 (F0631). The NEMC annual fee for a vat leaching plant is TZS 300,000, rising to TZS 4,000,000 for a CIP or CIL plant (F0508). An OSHA general inspection for a small mining workplace is TZS 480,000 (F0442). If the same company later imports a second consignment worth USD 3,000, the permit is USD 20, because 0.5% of that value is only USD 15.
Transport and storage: what does GN 820 require?
Registered transporters must keep protective gear, antidotes and first aid, use safe vehicles, follow a code of practice and train their staff. Chemicals in the Third, Sixth, Seventh and Eighth Schedules may not travel with passengers, food or animals. Each consignment travels with its documents, including the safety data sheet, and drivers must complete special training.
The Seventh Schedule sets storage standards. They include secure fencing, impermeable floors, non-combustible roofs, at least two emergency exits, ventilation and segregation of incompatible chemicals. For a small plant, the cyanide store is usually the first thing an inspector checks.
What are the offences and penalties?
Section 30(9) of Cap. 182 makes it an offence to produce, import, export, store, transport or deal in chemicals without a certificate. Section 60(1) lists further offences, including dealing in unregistered premises, handling chemicals unsafely, failing to manage chemical waste and obstructing an inspector.
- Body corporate: a fine of TZS 5 million to TZS 50 million on conviction (s.60(2)(a)).
- Individual: a fine of TZS 50,000 to TZS 5 million, imprisonment for two years, or both (s.60(2)(b)).
- Offences without a specific penalty: a fine of not less than TZS 500,000, imprisonment of not less than six months, or both (s.59).
- Repeat offences: at least twice the first-offence fine, and the court may order withdrawal of the certificate (s.61).
If GCLA seizes chemicals, refuses a certificate or charges a business, take advice from an advocate at once. Prosecution, seizure and appeals are matters for an advocate, not for a compliance consultant.
Where do the Mining Commission, NEMC and OSHA fit in?
GCLA controls the chemicals. Other regulators control the site and the activity, and a plant answers to all of them.
- Mining Commission. The Mining Commission issues licences for exploration, mining, processing and mineral trading, and runs a mines safety and environmental management function. A GCLA certificate does not replace a PML or processing licence. See our notes on Mining Commission inspections and processing licences.
- NEMC. Under the Environmental Management Act, Cap. 191, the Hazardous Waste Control and Management Regulations 2021, GN 389 of 2021 list mercury compounds and inorganic cyanides as hazardous waste streams. Collecting, storing, transporting or disposing of that waste needs a permit (F0514). Our guide to mining environmental obligations after the EIA covers the annual audit side.
- OSHA. The Occupational Safety and Health Authority registers workplaces through its WIMS portal. Registration has carried no fee since 1 July 2018 (NEW-04-40), and inspections are charged by sector and size (F0442). See which workplaces must register with OSHA.
Plants that use radioactive density gauges or analysers have a further authorisation from the Tanzania Atomic Energy Commission, covered in our note on radiation sources.
How is Zanzibar different from Mainland Tanzania?
GCLA and its portal serve Mainland Tanzania. Zanzibar runs its own system. The Zanzibar Chief Government Chemist Laboratory Agency was established under the Establishment of the Chief Government Chemist Laboratory Act, No. 10 of 2011. Its Industrial and Consumer Chemicals Regulations 2014 require anyone dealing in chemicals to apply for registration, and require a permit from the laboratory for imports and exports.
The two offices cooperate. Daily News reported in March 2023 that Zanzibar's Chief Government Chemist visited GCLA in Dar es Salaam to strengthen working relations. Cooperation does not merge the registers, however. A business that stores or uses chemicals in Zanzibar should register there, and one that moves chemicals between Zanzibar and the Mainland should confirm the paperwork with both offices before shipping.
What to do now
- Map your roles. List every chemical you import, buy, store, move or use, and decide whether you are an importer, dealer, transporter, user or more than one.
- Check your thresholds. Ask GCLA through the portal whether each chemical is scheduled and whether your annual volume crosses the threshold.
- Register on the portal. Open one company account and register the company, premises and each chemical. Upload the documents in the checklist above.
- Fix the store first. Bring the chemical store up to the Seventh Schedule standard before GCLA inspects it.
- Buy only from registered suppliers. Ask any dealer or transporter for its current GCLA certificate before you pay.
- Plan imports around the permit. Apply for each consignment before shipment and track the four-month validity.
- Diarise renewals. Pay maintenance before 30 June each year and apply for renewal three months before the certificate expires.
- Move away from mercury. Stop leaching mercury-contaminated tailings with cyanide unless the mercury has first been removed, and train staff on safer methods.
Key dates and deadlines
| Date | Event |
|---|---|
| 2 October 2020 | GN 820 of 2020, the chemicals Regulations, published |
| 5 October 2020 | Tanzania becomes a party to the Minamata Convention |
| 3 January 2021 | Minamata Convention enters into force for Tanzania |
| 30 July 2024 | GCLA ammonium nitrate guidelines GCLA/G/03 issued |
| 22 January 2025 | Written Laws (Miscellaneous Amendments) Act No. 1 of 2025 published, amending Cap. 182 |
| 27 September to 3 October 2026 | Ninth national mining technology exhibition, Geita (as scheduled) |
| 1 October 2026 | GCLA warning to Geita miners reported; GCLA posts its own note |
| 30 June each year | Deadline for annual maintenance fees (reg. 57) |
| Three months before expiry | Apply to renew a certificate; provisional certificates last two years and full certificates five years |
| 2030 | Target to end mercury use, as stated by GCLA's Lake Zone Manager |
How Zatra helps
Zatra's mining desk maps a client's chemical roles, prepares the GCLA portal file and document pack, and lines up the GCLA, Mining Commission, NEMC and OSHA steps in one compliance calendar. See our mining and mineral advisory page, our sector permits service and our import and export compliance service. Gold traders can also read our gold business guide for 2026.
Government fees are paid to GCLA and the other authorities at the official rate against their own control numbers. They are separate from Zatra's professional fee, shown on our pricing page, and are never marked up. GCLA decides every registration, certificate and permit. Zatra does not decide or guarantee any authority's outcome.
Sources and status
Accurate as at 6 October 2026.
- GCLA warns Geita miners over unsafe chemical use: The Respondents, 1 Oct 2026. Accessed 6 Oct 2026.
- GCLA yawaibukia wachimbaji madini Geita: Jamhuri Media, 1 Oct 2026. Accessed 6 Oct 2026.
- GCLA yapongezwa kwa kulinda afya, usalama wa wachimbaji: GCLA, 1 Oct 2026. Accessed 6 Oct 2026.
- Dkt Mwinyi kufungua maonyesho ya madini Geita: Michuzi Blog, 26 Sep 2026. Accessed 6 Oct 2026.
- Industrial and Consumer Chemicals (Management and Control) Act, Cap. 182 R.E. 2023: GCLA, posted 16 Feb 2026. Accessed 6 Oct 2026.
- Industrial and Consumer Chemicals (Management and Control) Regulations 2020, GN 820 of 2020: GCLA, 2 Oct 2020. Accessed 6 Oct 2026.
- Written Laws (Miscellaneous Amendments) Act No. 1 of 2025: GCLA, 22 Jan 2025. Accessed 6 Oct 2026.
- GCLA registration process: GCLA, posted Dec 2024. Accessed 6 Oct 2026.
- GCLA online portal FAQ: GCLA, undated. Accessed 6 Oct 2026.
- Guidelines for Handling and Management of Ammonium Nitrate, GCLA/G/03: GCLA, 30 Jul 2024. Accessed 6 Oct 2026.
- Tanzania national report to the Minamata Convention: Minamata Convention Secretariat, 2025. Accessed 6 Oct 2026.
- GEF-9456: National Action Plans for ASGM in Tanzania: UNEP, project 2016 to 2022. Accessed 6 Oct 2026.
- Indigenous Peoples and ASGM: guidance on Article 7: UNEP, 12 Oct 2023. Accessed 6 Oct 2026.
- Minamata Convention on Mercury manual: Zero Mercury Working Group, uploaded 2019. Accessed 6 Oct 2026.
- Mercury Reduction in ASGM in Tanzania: Graduate Institute Geneva, May 2025. Accessed 6 Oct 2026.
- Why mercury importers, dealers must be registered with GCLA: Daily News, 24 Aug 2022. Accessed 6 Oct 2026.
- GCLA on awareness campaign for safe use of sodium cyanide: Daily News, 29 Aug 2023. Accessed 6 Oct 2026.
- Environmental Management (Hazardous Waste Control and Management) Regulations 2021, GN 389: NEMC, 14 May 2021. Accessed 6 Oct 2026.
- Occupational Safety and Health Authority: OSHA, 2026. Accessed 6 Oct 2026.
- Mining Commission: Mining Commission, 2026. Accessed 6 Oct 2026.
- Zanzibar Industrial and Consumer Chemicals Regulations 2014: Tanzania Trade Portal, 2014. Accessed 6 Oct 2026.
- Govt chemists resolve to forge cooperation: Daily News, 12 Mar 2023. Accessed 6 Oct 2026.
Figures to confirm before you act
- GCLA registration, certificate, premises and permit fees: GN 820 Fourth Schedule, register F0745 and NEW-07-13; the GCLA control number governs
- Maintenance band for a given plant (medium USD 250, large USD 500, large mining company USD 1,000): GCLA assigns the band; confirm before budgeting
- GCLA inspection fees, transport permit by tonnage (printed as USD 1 per tonne from 10 to 200 tonnes), convoy escort and express permit (printed as USD 100): printed in GN 820 but not in the Zatra register; confirm with GCLA
- Thresholds for scheduled chemicals, including acids and reagents: Third Schedule to Cap. 182 and GN 820 Second Schedule; confirm with GCLA for your volumes
- Zanzibar chemical registration and permit fees: set under the Zanzibar Regulations 2014; not in the register, confirm with the Zanzibar agency
- Mercury phase-out by 2030 and any successor National Action Plan after 2025: stated by a GCLA official; confirm the current plan with the Vice President's Office
- Exhibition dates of 27 September to 3 October 2026: as scheduled in press reports before the event
This article is general information based on official sources available at the date of publication. It is not legal, tax or financial advice. Laws and notices change. Verify with the issuing authority or consult Zatra before acting.
Frequently asked questions
Does an artisanal miner who buys a little mercury need GCLA registration?
The Regulations require users of a regulated chemical to register, subject to the threshold for that chemical. Small-scale entrepreneurs with capital below TZS 5 million pay the lower rates, such as TZS 10,000 per chemical. GCLA's portal confirms whether your quantity triggers registration.
Can I buy cyanide from a dealer instead of importing it?
Yes. Buying locally removes the need for an import permit, which falls on the importer. You still need your own user registration, certificate and registered store. Ask the dealer for its current GCLA certificate and keep a copy with each invoice.
How long is a GCLA certificate valid?
GCLA's registration guide says a provisional certificate lasts two years and a full certificate five years. Apply to renew three months before expiry. Annual maintenance fees are separate and fall due before 30 June each year.
Is mercury banned in Tanzania?
Not outright. The Minamata Convention requires Tanzania to reduce and, where feasible, eliminate mercury in artisanal gold mining, and to end worst practices such as whole ore amalgamation. Mercury dealing remains lawful only through registered importers and dealers under Cap. 182.
Does a change of company ownership affect GCLA registration?
Yes. Section 27(3) of Cap. 182 says a premises registration ceases 30 days after a change in ownership of the business carried on there. A buyer of a plant should apply in good time so that the store is not left unregistered.
Who handles spent cyanide and mercury waste?
Both regimes apply. NEMC permits the collection, storage, transport and disposal of hazardous waste under GN 389 of 2021. GCLA registers chemical waste disposal facilities and can supervise the destruction of chemicals at USD 300 per person per day (F0743).
Does the GCLA portal work for Zanzibar?
No. GCLA's portal states that it covers chemical dealers within Tanzania Mainland. Zanzibar has its own Chief Government Chemist Laboratory Agency, with separate regulations from 2014 and its own registration and permit process.
What happens if GCLA finds us operating without a certificate?
It is an offence under section 30(9). On conviction a company faces a fine of TZS 5 million to TZS 50 million, and a repeat offence at least doubles the fine. Speak to an advocate before replying to any GCLA notice or charge.
Sources & regulators
Verify before filing: Rates, forms and thresholds move by Finance Act, Government Notice and portal revision. Confirm the live schedule on the mandate-holder portal before you budget or submit. Law-firm alerts and Big Four notes are discovery only.
- The Respondents: GCLA warns Geita miners over unsafe chemical use: press report, published 1 Oct 2026; read 6 Oct 2026. Accessed 2026-10-06.
- Jamhuri Media: GCLA yawaibukia wachimbaji madini Geita: independent press report, published 1 Oct 2026. Accessed 2026-10-06.
- GCLA: GCLA yapongezwa kwa kulinda afya, usalama wa wachimbaji: GCLA news release, published 1 Oct 2026; primary source. Accessed 2026-10-06.
- Industrial and Consumer Chemicals (Management and Control) Act, Cap. 182 R.E. 2023: GCLA, revised edition 2023, posted 16 Feb 2026; primary source (ss.15, 27, 30, 59 to 61). Accessed 2026-10-06.
- Industrial and Consumer Chemicals (Management and Control) Regulations 2020, GN 820: GCLA, GN 820 published 2 Oct 2020; primary source (regs 5, 9, 10, 24, 57, Fourth Schedule). Accessed 2026-10-06.
- Written Laws (Miscellaneous Amendments) Act No. 1 of 2025: published 22 Jan 2025; primary source (Part IV amends Cap. 182). Accessed 2026-10-06.
- GCLA registration process: GCLA, posted Dec 2024; primary source (stakeholders, documents, validity). Accessed 2026-10-06.
- GCLA online portal FAQ: GCLA, undated, read 6 Oct 2026; primary source (Mainland coverage, one account). Accessed 2026-10-06.
- GCLA Guidelines for Handling and Management of Ammonium Nitrate, GCLA/G/03: GCLA, 30 Jul 2024; primary source. Accessed 2026-10-06.
- Tanzania national report to the Minamata Convention: Minamata Convention Secretariat, 2025; primary source (party 5 Oct 2020, in force 3 Jan 2021, NAP 2020 to 2025). Accessed 2026-10-06.
- UNEP GEF-9456: National Action Plans for ASGM in Tanzania: UNEP project page, project 2016 to 2022. Accessed 2026-10-06.
- UNEP: Indigenous Peoples and ASGM, Article 7 guidance: UNEP, 12 Oct 2023. Accessed 2026-10-06.
- Zero Mercury Working Group: Minamata Convention on Mercury manual: independent NGO manual, uploaded 2019 (Annex C worst practices). Accessed 2026-10-06.
- Graduate Institute Geneva: Mercury Reduction in ASGM in Tanzania: independent research report, May 2025. Accessed 2026-10-06.
- Daily News: Why mercury importers, dealers must be registered with GCLA: press report, published 24 Aug 2022. Accessed 2026-10-06.
- Daily News: GCLA on awareness campaign for safe use of sodium cyanide: press report, published 29 Aug 2023. Accessed 2026-10-06.
- Environmental Management (Hazardous Waste Control and Management) Regulations 2021, GN 389: NEMC, GN 389 published 14 May 2021 under Cap. 191; primary source. Accessed 2026-10-06.
- Occupational Safety and Health Authority: OSHA website, read 6 Oct 2026; primary source (WIMS workplace registration). Accessed 2026-10-06.
- Mining Commission: Mining Commission website, read 6 Oct 2026; primary source (licensing functions). Accessed 2026-10-06.
- Zanzibar Industrial and Consumer Chemicals Regulations 2014: Tanzania Trade Portal, regulations of 2014 under Zanzibar Act No. 10 of 2011; primary source. Accessed 2026-10-06.
- Daily News: Govt chemists resolve to forge cooperation: press report, published 12 Mar 2023. Accessed 2026-10-06.
- Michuzi Blog: Dkt Mwinyi kufungua maonyesho ya madini Geita: press report, published 26 Sep 2026. Accessed 2026-10-06.
Disclaimer
This article is informational orientation. It is not legal, tax or investment advice and not a government decision. Tanzanian instruments move by Act, Government Notice, Finance Act and portal revision. If a sentence here disagrees with the live mandate-holder, the mandate-holder wins. Zatra Consultants Limited does not issue licences, permits, tax clearances or approvals, and gives no assurance of any regulatory or banking outcome. Professional fees are published only on /pricing/.