Mimosa Mining Company

What Mimosa Mining Company does

Mimosa Mining Company is a private platinum group metals (PGM) and base metal producer operating a single underground mine on the Wedza geological complex of the Zimbabwean Great Dyke in Zvishavane, Midlands Province. The company uses mechanised bord-and-pillar mining with Load Haul and Dump machines across three ore bodies (North Hill, South Hill, Far South Hill) and processes ore through an on-site concentrator configured with a two-stage milling and flotation circuit. Annual throughput is approximately 2.9 million tonnes of ore, yielding approximately 238,000 ounces of PGMs per year as final concentrate, alongside co-product base metals (nickel, copper, cobalt) extracted from the Main Sulphide Zone. The mine is fully mechanised with established shaft systems (Wedza Shaft, Blore Shaft, 2nd Egress Shaft System) and tailings storage capacity (TSF4 commissioned 2024).

Mimosa is wholly owned by Mimosa Investments Limited, a Mauritius-based holding company structured as a 50:50 joint venture between Impala Platinum Holdings (Implats) and Sibanye Stillwater, a structure that has been stable since Sibanye Stillwater's 2016 acquisition of joint-venture partner Aquarius Platinum. The business model is concentrated B2B: final concentrate is thickened, pressure-filtered, and transported to third-party refiners under negotiated offtake agreements for further smelting and refining. Pricing is not publicly disclosed, consistent with bilateral contractual sales rather than spot-market exposure.

The company operates with 1,001-5,000 employees and maintains ISO 14001, ISO 45001, ISO 17025, and ISO 50001 certifications. Beyond core mining, Mimosa runs a substantial corporate social investment portfolio in Zvishavane and Mberengwa districts, including borehole programmes (~70 drilled), a livestock revitalisation programme (500+ bulls and heifers donated since 2018), the Mtshingwe Nursery (in partnership with Friends of the Environment), and a Local Enterprise Development Programme under which 78% of suppliers are local companies. The head office is in Harare, with operational headquarters at the mine site in Zvishavane.

Name

Mimosa Mining Company

Legal name

Mimosa Mining Company

Website

https://mimosa.co.zw

Company type

Private

Founded year

1926

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Mimosa Mining Company is a private Zimbabwean platinum group metals and base metal producer operating a single underground mine on the Great Dyke in Zvishavane, processing 2.9 million tonnes of ore annually into approximately 238,000 ounces of PGM concentrate. It is a 50:50 joint venture between Implats and Sibanye Stillwater.

Ownership category

akta.pro rank

Product category

Platinum Group Metals Mining

NAICS

Other Metal Ore Mining (21229)

SIC

Miscellaneous Metal Ores (1090)

akta.pro primary industry

Precious Metals Ore Processing & Beneficiation (IMAKAEAD)

Keywords

• Platinum group metals mining
• PGM concentrate production
• Base metals extraction
• Mechanized underground mining
• Great Dyke mineral processing

Headquarters

HQ city

Harare

HQ country

Zimbabwe

HQ region

Africa

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Infrastructure, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. PGM Concentrate Sales: Mining operation producing approximately 2.9 million tonnes of ore annually, yielding a final concentrate with approximately 238koz of PGMs per year. Final concentrate is thickened and dewatered via pressure filters before being transported to third parties for further processing.
2. Base Metal Production: Extraction and processing of base metals including nickel, copper, and cobalt as co-products alongside PGMs from the Main Sulphide Zone

Go-to-market motion2 records

Distribution channels2 records

Marketing channels6 records

Core offering

Mimosa Mining Company extracts platinum group metals (platinum, palladium, rhodium) and base metals (nickel, copper, cobalt) from ore bodies on the Wedza geological complex of the Zimbabwean Great Dyke using mechanized bord-and-pillar mining. The ore is processed on-site through a two-stage milling and flotation concentrator with pressure filtration, producing approximately 238koz of PGM concentrate annually from 2.9 million tonnes of ore, which is sold to third-party refiners under offtake agreements.

Product overview

Mimosa Mining Company operates as a Platinum Group Metal (PGM) and base metal mining operation. The company extracts ore from three ore bodies (North Hill, South Hill, and Far South Hill) using a mechanized bord-and-pillar mining method, producing approximately 2.9 million tonnes of ore annually. The extracted ore is processed through an on-site concentrator which yields approximately 238koz of PGMs per year as final concentrate. The primary products are platinum, palladium, and rhodium (PGMs) along with base metals including nickel, copper, and cobalt. The final concentrate is transported to third parties for further processing.

Differentiator

Problem solved

Functional benefit

Products and services

• Platinum Group Metals (PGMs) Concentrate Mimosa mines and processes platinum, palladium, and rhodium — the most economically significant PGMs found in the Main Sulphide Zone of the Great Dyke — producing approximately 238koz of PGMs per year as final concentrate that is sold to third-party refiners under offtake agreements.
• Base Metals (Nickel, Copper, Cobalt) Mimosa extracts and processes nickel, copper, and cobalt as co-products alongside platinum group metals from the Main Sulphide Zone, occurring in economic quantities within the same ore body.
• Ore Concentration and Processing Services The on-site concentrator processes 2.9 million tonnes of ore per year through crushing, screening, milling, flotation, thickening, and filtration to produce final PGM concentrate for third-party processing.

Quantifiable outcome

• 5 million fatality-free shifts achieved in December 2023
• +3 more outcomes

Named customers2 records

Segments2 records

Ideal customer profiles1 record

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered minor and core.

• Zimbabwe Agricultural SocietyminorStrategic or Co-development Partner · 1 January 2018Partnership for the Livestock Revitalisation Programme launched in 2018, focused on improving cattle genetics in communal farming areas through breeding bulls and artificial insemination initiatives.
• Friends of the Environment (FOTE)coreStrategic or Co-development Partner · 1 January 2013Mimosa partnered with Friends of the Environment to establish the Mtshingwe Nursery, which champions empowerment and self-sustenance through tree planting and community horticulture training. The partnership was enhanced in 2020 to include community orchards, horticultural produce, herbs, and stock feed grasses.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Tharisa plc: Tharisa produces PGMs and chrome co-products from the Bushveld Complex in South Africa, with a similar byproduct-driven revenue model and exposure to PGM basket prices; useful comparable for byproduct economics.
• Northam Platinum: Northam operates the Zondereinde and Booysendal PGM mines in South Africa's Bushveld Complex, producing platinum, palladium, rhodium and base-metal by-products — directly comparable mechanised underground PGM operations.
• Eastern Platinum (Eastplats): Eastplats owns the Crocodile Valley and Spitzkop PGM mines on the Bushveld Complex; smaller-scale PGM producer with similar mining and processing characteristics to Mimosa.
• Anglo American Platinum (Unki Mine): Anglo American Platinum's Unki operation is a PGM mine located on the Great Dyke in Zimbabwe, sharing the same geological complex, mining method, and offtake dynamics as Mimosa.
• Zimplats: Zimplats operates PGM mines (Ngezi and Selous) on the same Great Dyke in Zimbabwe and is also majority-owned by Implats, making it the closest geographic, geological, and ownership analogue to Mimosa.
• Royal Bafokeng Platinum (now part of Anglo American Platinum): RBPlat operated mechanised PGM mines (BRPM and Styldrift) on the Bushveld Complex prior to its acquisition by Anglo American Platinum; comparable in scale, ore-body type and underground mechanised mining approach.

Emerging players

• Platinum Group Metals Ltd: Platinum Group Metals is a developer-stage PGM company advancing the Waterberg project on the Northern Limb of the Bushveld Complex; comparable PGM exposure but at a much earlier stage of development than Mimosa.

Broad incumbents

• Impala Platinum (Implats): Implats is Mimosa's 50% parent and one of the world's largest primary PGM producers, operating Impala and Marula mines in South Africa plus Zimplats in Zimbabwe; provides direct technical, financial and offtake linkage to Mimosa.
• Sibanye-Stillwater: Sibanye-Stillwater is Mimosa's other 50% parent and a major global PGM producer with South African (Rustenburg) and US (Stillwater) operations; comparable in product mix, processing routes and end-markets.
• Anglo American Platinum: The world's largest primary PGM producer, operating Mogalakwena, Amandelbult and Unki; comparable in scale, mining methods, and downstream exposure to PGM and base-metal co-products.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/mimosa
• Facebookfacebook.com/mimosa
• LinkedInlinkedin.com/company/mimosa-mining-company_2
• Instagraminstagram.com/mimosa

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mimosa Mining Company