What TIMAB Magnesium does

TIMAB Magnesium operates as Terresis, a France-based magnesium products company and wholly-owned subsidiary of the diversified conglomerate Groupe Roullier. The company was established in 1970 in Saint-Malo, France, and has built over 50 years of expertise in magnesium extraction and processing. It controls the full magnesium value chain through owned mining operations in Brazil and Spain, 10 production sites, and 8 offices worldwide, commercializing magnesium-based products across 70 countries.

Terresis serves four industrial verticals: Agriculture (animal nutrition supplements such as Gastrimag, CAPMAG ZN, CR-MAG, and plant/crop products including pHix-up, TIMFOLIUP, SUNFORTIS), Refractory/Terresis Magna (magnesia-based masses and equipment for steel industry infrastructure), Industrial Minerals (XP MAG, Geocrete, XLcure for chemicals, materials, life sciences, cement, and construction), and Environment (MH53S, magnesium derivatives for environmental processes). The product portfolio spans registered branded SKUs across commodity and specialty-grade applications.

The business model is B2B direct sales of magnesium-based industrial inputs via technical commercial teams. Revenue derives from one-time industrial product sales — pricing is not publicly disclosed and contracts are negotiated bilaterally. Terresis employs approximately 960 people globally, with operational scale concentrated in mining, processing, and application engineering rather than software or services. The company leverages Groupe Roullier's capital base, R&D infrastructure, and innovation partnerships to sustain its product development pipeline and geographic expansion.

Name

TIMAB Magnesium

Legal name

Terresis

Website

https://timabmagnesium.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

251–500 employees

Short description

TIMAB Magnesium (operating as Terresis) is a France-headquartered subsidiary of Groupe Roullier that extracts magnesium from owned mines in Brazil and Spain and sells magnesium-based industrial products across agriculture, steel refractories, industrial minerals, and environment sectors in 70 countries.

Ownership category

akta.pro rank

Product category

Industrial Minerals and Magnesium Products

NAICS

Other Nonmetallic Mineral Mining and Quarrying (21239), All Other Nonmetallic Mineral Product Manufacturing (32799)

SIC

Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400), Abrasive, Asbestos & Misc Nonmetallic Mineral Prods (3290)

akta.pro primary industry

Magnesite & Magnesium Minerals Mining (IMAKAGAN)

akta.pro secondary industries

Magnesite & Magnesium Minerals (IMAEAFAL), Minerals & Trace Elements (Calcium, Magnesium, Zinc, Iron; Chelated Minerals) (AFAJAKAB)

Keywords

• Magnesium oxide products
• Refractory magnesia materials
• Animal nutrition supplements
• Industrial minerals supply
• Magnesia-based binders

Headquarters

HQ city

Dinard

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Magnesium-based product sales: B2B sales of magnesium products and solutions across four sectors: Agriculture (animal nutrition and plant production), Refractory (steel industry protection), Industrial Minerals (chemistry, materials, life sciences, cement, construction), and Environment (environmental processes)

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

TIMAB Magnesium (Terresis) extracts and processes magnesium raw materials from owned mines in Brazil and Spain and delivers high value-added magnesium-based products across four sectors: Agriculture (animal nutrition and plant production solutions), Refractory (magnesia-based masses for the steel industry), Industrial Minerals (raw materials for chemistry, materials, life sciences, cement, and construction), and Environment (magnesium derivatives for environmental processes). The company operates 10 production sites and serves customers in 70 countries via direct B2B sales.

Product overview

TIMAB Magnesium operates as Terresis, a magnesium products company with four core divisions: Agriculture (pHix-up®, CAPMAG® ZN, Gastrimag, TIMFOLIUP®, SUNFORTIS®, CR-MAG), Magna/Refractory (Produits de Sole, Produits de projection, Coulée continue), Industrial Minerals (XP MAG, Geocrete®, XLcure), and Environment (MH53S). The company offers a unified platform of magnesium-based solutions across these specialized sectors, providing both standard products and tailored formulations for industrial, agricultural, and environmental applications. Products range from animal feed supplements and agricultural foliar sprays to refractory materials for steelmaking and construction binders.

Differentiator

Problem solved

Functional benefit

Brands

• pHix-up: Agricultural magnesium solution
• CAPMAG ZN
• Gastrimag
• TIMFOLIUP
• SUNFORTIS
• CR-MAG
• XP MAG
• Geocrete
• XLcure
• MH53S

Products and services

• pHix-up® Magnesium-based agricultural solution for crop nutrition and soil health, addressing pH and magnesium availability for plant production.
• CAPMAG® ZN Magnesium and zinc supplement formulated for animal nutrition in agricultural livestock applications.
• Gastrimag Magnesium-based product for animal nutrition and digestive health in livestock.
• TIMFOLIUP® Foliar magnesium solution for plant nutrition in agriculture.
• SUNFORTIS® Magnesium-based agricultural product for crop protection and nutrition.
• CR-MAG Magnesium supplement for animal nutrition in livestock farming.
• XP MAG Industrial magnesium product for chemical and material applications.
• Geocrete® Magnesium-based binder product for construction and cement applications.
• XLcure Industrial mineral product for material sciences and construction applications.
• MH53S Magnesium derivative product for environmental processes and waste treatment.
• Produits de Sole Bottom hearth refractory products used in metallurgical processes for the steel industry.
• Produits de projection Projection (gunning) products for refractory lining applications in metallurgical processes.
• Coulée continue Continuous casting refractory products for steelmaking and metallurgical applications.

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Imerys: French-headquartered global specialty minerals producer with a broad industrial minerals portfolio including magnesia, talc, and refractory raw materials. Comparable as a diversified industrial minerals incumbent with magnesium-related offerings across multiple end-markets.
• Minerals Technologies Inc. US-listed specialty minerals company serving paper, steel, and industrial markets with mineral-based products including refractory and performance materials. Comparable as a broad specialty minerals player with overlapping industrial end-customers.

Regional players

• Haicheng Magnesia: Chinese producer of fused and caustic magnesia products serving refractories, agriculture, and industrial markets. Comparable as a major Asian-region magnesia mining and processing supplier serving similar downstream end-markets.
• Ube Material Industries: Japanese producer of magnesia and specialty inorganic chemicals serving refractories, electronics, and industrial markets primarily in Asia. Comparable as a magnesium chemicals specialist serving overlapping end-use applications in a different geography.

Direct peers

• RHI Magnesita: Global leader in refractory products and the world's largest producer of magnesia-based refractories for the steel industry. Directly comparable to Terresis Magna as a vertically integrated magnesia mining-to-refractory specialist serving industrial end-markets.
• Premier Magnesia: US-based producer of magnesium oxide, magnesium hydroxide, and related magnesium chemicals serving industrial, environmental, and agricultural markets. Directly comparable as a multi-segment magnesium derivatives specialist.
• Magnesita Refratários (now part of RHI Magnesita): Brazilian-origin refractory producer with owned magnesia mines, serving steel and industrial markets globally. Comparable as an integrated South American magnesia mining and refractory player with similar vertical integration.

Emerging players

• Greer Industries: US producer of high-purity dolomitic and high-calcium lime products serving steel, glass, and environmental applications. Comparable as a mineral-based specialty supplier with overlap in industrial minerals and environmental end-markets.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/terresis25

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries5 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 TIMAB Magnesium