RIMA Group

What RIMA Group does

RIMA Group (legal name RIMA Industrial S/A) is a privately held, family-owned Brazilian industrial conglomerate founded in 1974 by Ricardo Antonio Vicintin and headquartered in Belo Horizonte, Minas Gerais. The company produces primary magnesium and magnesium alloys, silicon metal, ferro silicon (including high-purity grades), calcium silicon, foundry alloys, magnesium powder for steel desulfurization, die-cast magnesium and aluminum automotive components (through its MOTORAV subsidiary), soil correctors (FERTIRIMA), construction materials from mining by-products, and renewable energy. RIMA's distinctive technical moat is its silicothermic magnesium extraction process under extra-high vacuum, vertically integrated from dolomite and quartz mining (250,000 t/year and 180,000 t/year respectively) through eucalyptus-based charcoal production on 55,000 hectares of FSC-certified plantations to finished automotive parts. The group operates 6 furnaces across four plants in northern Minas Gerais — including the world's largest charcoal-based submerged arc furnace (SIII, inaugurated 2020 at Capitão Enéas) — and employs more than 6,000 people across 14 divisions.

RIMA is the only primary magnesium producer in the Western and Southern Hemispheres and the third-oldest magnesium producer globally, accounting for approximately 2% of world primary magnesium supply outside the China-dominated market. Its customer base spans automotive OEMs (via die-cast parts and MOTORAV engine blocks), global steelmakers (magnesium powder for desulfurization), aluminum producers (magnesium as alloying element), foundries (RIMAlloy nodularizers and InoRIMA inoculants), Korean electrical steel producers (high-purity ferro silicon via the SILBRAKOR joint venture with SIMPAC Group formed July 2024), construction firms, and Brazilian agriculture. Revenue is generated through direct B2B industrial sales organized by product line, with quote-based pricing; no public pricing is disclosed. RIMA is certified under ISO 9001, ISO 14001, IATF 16949 (automotive die casting), SA8000, ISO 45001, FSC forestry, and was the first company worldwide certified by SGS for CO2 emission balance calculation per ISO 14067. In April 2025, RIMA secured its first disclosed institutional investment, $25 million from the International Finance Corporation.

Name

RIMA Group

Legal name

RIMA Industrial S/A

Website

https://rima.com.br

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

11–50 employees

Short description

RIMA Group is a privately held Brazilian industrial manufacturer — the only Western and Southern Hemisphere producer of primary magnesium — operating vertically integrated production of magnesium alloys, silicon metal, ferro silicon, and die-cast automotive parts across 14 divisions and 6,000+ employees.

Ownership category

akta.pro rank

Product category

Industrial Metallurgy (Magnesium and Silicon-Based Alloys)

NAICS

Other Nonmetallic Mineral Mining and Quarrying (21239), Industrial Sand Mining (212322), All Other Nonmetallic Mineral Product Manufacturing (32799), Nonmetallic Mineral Mining and Quarrying (2123)

SIC

Metal Mining (1000), Primary Smelting & Refining Of Nonferrous Metals (3330), Nonferrous Foundries (Castings) (3360), Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400)

akta.pro primary industry

Magnesite & Magnesium Minerals Mining (IMAKAGAN)

akta.pro secondary industries

Aluminum Casting & Ingot/Billet/Slab Production (IMAKACAE), Silica & Quartz Mining (Industrial Silica Sand, High-Purity Quartz) (IMAKAGAK)

Keywords

• Magnesium alloy production
• Silicon metal manufacturing
• Ferro silicon alloys
• Industrial die casting
• Specialty metallurgical products

Headquarters

HQ city

Belo Horizonte

HQ country

Brazil

HQ region

Latin America

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Magnesium and Magnesium Alloys: Primary magnesium production at 23,000 t/year, magnesium alloys, magnesium powder for desulfurization, die-cast automotive parts. Complete verticalized production from dolomite to finished products.
2. Silicon Metal and Ferro Silicon: Metallurgical grade silicon metal production using world's largest charcoal-based electric arc furnace. Ferro silicon 50% and 75% production. High-purity ferro silicon through SILBRAKOR joint venture.
3. Forestry Products: Charcoal and wood products from 55,000 hectares of eucalyptus plantations. Certified FSC forestry operations supplying raw material for metallurgical processes.
4. Construction Materials: Concrete artifacts from mining by-products, active silica/microsilica for cement and concrete applications.
5. Agricultural Products: FERTIRIMA soil acidity corrector/fertilizer from dolomite processing, targeting Brazilian agricultural sector.
6. Renewable Energy: 100% renewable electricity from own generation and PPAs with wind and solar projects.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

RIMA Group is an industrial manufacturing company that vertically produces magnesium metal and alloys, silicon metal, ferro silicon, and specialty foundry alloys from raw mineral extraction (dolomite, quartz) and eucalyptus forestry through to finished die-cast automotive parts. It operates the only primary magnesium production facility in the Western and Southern Hemispheres using a proprietary silicothermic process, and runs the world's largest charcoal-based electric arc furnace for silicon metal. It also sells by-products such as concrete/microsilica materials and FERTIRIMA soil correctors.

Differentiator

Problem solved

Functional benefit

Brands

• SILBRAKOR: Joint venture brand for high-purity ferro silicon production, formed in partnership with SIMPAC Group.
• MOTORAV
• RIMAlloy
• InoRIMA
• FERTIRIMA

Products and services

• Magnesium Metal and Alloys Primary magnesium produced via a proprietary silicothermic process under extra-high vacuum from dolomite, with capacity of 23,000 t/year. Sold to aluminum producers for alloying, to steel producers for desulfurization, and as the feedstock for downstream alloys and die-cast parts. RIMA accounts for roughly 2% of global primary magnesium production and is the only producer outside China in the Western and Southern Hemispheres.
• Silicon Metal and Ferro Silicon Metallurgical grade silicon metal and ferro silicon (50% and 75% grades) produced using charcoal-based submerged arc furnaces, including the world's largest such furnace (SIII, operational 2020). Sold to aluminum, steel, chemical, and electronics industries; high-purity ferro silicon is supplied to the Korean electrical steel market via the SILBRAKOR joint venture.
• RIMAlloy Nodularizers and Foundry Alloys Magnesium-silicon-iron alloys (RIMAlloy) marketed to ferrous foundries as nodularizers for ductile and gray iron production, enabling graphite spheroidization and consistent metallurgical results.
• InoRIMA Inoculants and Cored Foundry Wire Foundry inoculants (InoRIMA) including Ferro Silicon Barium, Cerium, Calcium-Aluminum, Zirconium, Strontium, and Bismuth variants, plus cored foundry wire, sold to ferrous foundries for graphite structure control and ductile iron production.
• Magnesium and Aluminum Die-Cast Automotive Parts (MOTORAV) Magnesium and aluminum die-cast automotive components, including fully machined and assembled air-cooled engine blocks in AS41 alloy (MOTORAV), serving global automotive manufacturers from the Bocaiúva facility with liquid metal and in-house recycling.
• Magnesium Powder for Desulfurization Magnesium powder produced at the only magnesium powder plant in the Southern Hemisphere, supplied to steel producers for pig iron desulfurization, including a desulfurization service using magnesium powder mixtures launched in 1997.
• Concrete Artifacts and Microsilica / Active Silica Concrete artifacts and active silica/microsilica derived from silicon metal production, supplied to construction and infrastructure customers for cement, concrete, ceramics, refractories, and precast elements, providing up to 25% cost savings in construction projects.
• FERTIRIMA Soil Acidity Corrector / Fertilizer Agricultural dolomitic soil acidity corrector and fertilizer derived from dolomite processing, marketed as FERTIRIMA to Brazilian farmers, with PRNT 2-3 times higher than traditional limestone, addressing calcium/magnesium deficiency and toxic aluminum in cerrado soils.
• Charcoal and Forestry Products (Eucalyptus Plantations) Charcoal and wood products from 55,000 hectares of FSC-certified eucalyptus plantations using proprietary clones developed through a 42+ year genetic improvement program, supplying the metallurgical processes and providing biomass for renewable energy generation.
• SILBRAKOR High-Purity Ferro Silicon High-purity ferro silicon produced by the SILBRAKOR joint venture between RIMA and SIMPAC Group for the Korean electrical steel market used in motors and transformers.

Quantifiable outcome

• 30% weight reduction compared to aluminum parts
• +4 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core and minor.

• SIMPAC GroupcoreStrategic or Co-development Partner · 31 July 2024Joint venture SILBRAKOR created between RIMA Industrial and SIMPAC Group (Korea's leading ferro alloy producer) for high-purity ferro silicon production in Brazil. 50-50 ownership between both companies. RIMA supplies sustainably produced ferro silicon while SIMPAC provides market access in Korean electrical steel market for motors and transformers. Partnership began with collaboration in 2019.
• Casa dos VentoscoreStrategic or Co-development PartnerPartnership for implementation of Rio do Vento Wind Complex in Rio Grande do Norte, one of Brazil's and world's largest wind farms. Project has been supplying clean renewable energy to RIMA Group units since 2023.
• Comerc/VibriacoreStrategic or Co-development PartnerSolar energy project developed in Paracatu, Minas Gerais to supply clean solar energy to RIMA's magnesium plant in Bocaiúva. Synergy created since both renewable energy and magnesium production raw materials originate from Paracatu.
• Rede Cidadã BHminorOthersSocial inclusion partnership for hiring apprentices with hearing disabilities (PCD) within RIMA Group. First hires made in January and February with plans to expand by April.

Scale indicators10 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Elkem: Norwegian silicones and silicon products manufacturer owned by China National Bluestar. Directly comparable as a major silicon metal and ferro silicon producer serving steel, aluminum, and electronics end markets, with similar operational scale and focus on low-carbon silicon products.
• Dead Sea Magnesium: Israeli primary magnesium producer historically operated by Israel Chemicals. One of the few non-Chinese primary magnesium producers globally, serving aluminum alloying and magnesium die casting markets with comparable product portfolio to RIMA.
• Ryobi Die Casting: Japanese aluminum and magnesium high-pressure die casting supplier serving automotive OEMs globally. Comparable automotive die casting customer base and lightweighting-focused product portfolio, with similar IATF 16949-grade automotive quality requirements.
• Nemak: Mexican aluminum and magnesium automotive components supplier serving global OEMs. Comparable as a tier-one automotive die caster producing lightweight powertrain and structural components, with overlapping automotive customer base and similar exposure to ICE-to-EV transition dynamics.
• Ferroglobe: US/Spain-based global leader in silicon metal, ferro silicon, and silicon-based alloys. Comparable product portfolio (silicon metal, ferro silicon), end markets (steel, aluminum, automotive, solar), and integrated mining-to-alloy operations, making it RIMA's closest direct competitor in silicon and ferro silicon globally.
• Magnesium Elektron: A UK-based primary magnesium and magnesium alloy producer (part of the Luxfer group historically). Directly comparable as one of the few Western primary magnesium producers competing with RIMA for non-Chinese market share, serving similar automotive, aerospace, and industrial customers with magnesium alloys.

Broad incumbents

• Wacker Chemie: German specialty chemicals and silicon producer with polysilicon, silicones, and silicon metal operations. Comparable as a major silicon metal producer serving semiconductor, solar, and industrial markets, but with a much broader specialty chemicals portfolio than RIMA's metallurgy focus.
• China Magnesium Corporation: Chinese primary magnesium producer listed on the Hong Kong Stock Exchange. Relevant as the dominant Chinese competitor that defines the global magnesium cost curve; comparable product offering but operates at significantly larger scale and lower cost than RIMA.
• Globe Specialty Metals (now part of Ferroglobe): Legacy US silicon metal producer that merged into Ferroglobe. Comparable historical position as a Western silicon metal and ferro silicon producer, now relevant primarily through its integration into Ferroglobe's global silicon franchise competing with RIMA.

Regional players

• POSCO Magnesium: Korean steel giant with magnesium smelting operations and a key partner of RIMA via the SILBRAKOR JV. Comparable as a primary magnesium and ferro silicon producer, though primarily serving Korean/Asian markets; relevant given commercial partnership and similar technology base.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/rimaindustrial
• YouTubeyoutube.com/@rimaindustrialsa
• Facebookfacebook.com/rimaindustrial
• LinkedInbr.linkedin.com/company/rimaindustrial
• Instagraminstagram.com/rimaindustrial

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries2 records

Funding overview

Funding rounds1 record

Investors1 record

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 RIMA Group