What Weber Mining does

Weber Mining & Tunnelling S.A.S. is a French-headquartered specialty chemical and equipment manufacturer focused on ground control for underground mining and civil tunneling operations. Founded in 1960 by Adolphe Weber in Rouhling, within the French-German coalfields, the company develops proprietary polymer chemistries spanning phenolic foams (MARIFLEX, ROCSIL, FENOFOAM, FENOFLEX), polyurethane resins (MARITHAN, MARISTOP), urea silicate resins (MARISIL, MARIFOAM), and methacrylate gels (MARIGEL) for strata consolidation, cavity filling, water sealing, ventilation control, and underground fire prevention. These chemistries are complemented by proprietary injection pumps (MAXI STANDARD, MULTI-COMPACT, MINI COMPACT, SUPRA), the modular SKID Thixo injection unit, and the MARIBOLT self-drilling anchor system (SDA, MPA, Falcon, Hollow, Cuttable Hollow variants). The full portfolio is sold as an integrated ground control solution in which resins and foams are injected through Weber's own equipment.

The company operates a direct field sales model with on-site engineering support, layered over a network of regional subsidiaries in Poland (manufacturing), Turkey, Mexico, Australia, and South Africa, plus distribution and contracting partnerships (Mastermyne/Metarock in Australia, New Concept Mining in South Africa, Wilson Mining Services historically). Revenue derives from chemical product sales, hardware (pumps, anchors, SKID units), and technical services (consulting, equipment management, training, contracting). Pricing is quote-based with 30-day validity, in euros, with revision/indexation clauses and a 2% cash payment discount. Customers are predominantly enterprise underground miners and tunneling contractors, with named relationships including Vale and Mastermyne/Metarock. End markets span coal mining, hard rock mining (gold, diamond, platinum, chrome), and civil tunneling, served across 19+ countries on five continents.

In 2025, Weber Mining was acquired by Jennmar, a US-based ground control specialist, ending 65 years of family ownership that had passed from Adolphe Weber to Frank Weber in 1993 and later included Delphine Weber (2022). The acquisition extends Weber's product portfolio into Jennmar's Canadian, US, Chinese, Indonesian, Mongolian, Latin American, and Northern European footprint, while Weber's French and Polish manufacturing and regional sales offices continue to serve European, Australian, African, and Mexican markets.

Name

Weber Mining

Legal name

WEBER MINING & TUNNELLING S.A.S.

Website

https://weber-mining.com

Company type

Private

Founded year

1960

Operating status

Acquired

Headcount range

11–50 employees

Short description

Weber Mining & Tunnelling manufactures proprietary polymer resins, phenolic foams, and injection equipment for ground control in underground mining and civil tunneling, serving enterprise mining operators and contractors across more than 19 countries.

Ownership category

akta.pro rank

Product category

Mining Ground Control Chemicals and Equipment

NAICS

Mining Machinery and Equipment Manufacturing (333131)

SIC

Mining Machinery & Equip (No Oil & Gas Field Mach & Equip) (3532), Miscellaneous Chemical Products (2890), Construction, Mining & Materials Handling Machinery & Equip (3530)

akta.pro primary industry

Mining & Metals Process & Water Chemicals (IMAEAJAJ)

akta.pro secondary industries

Drill Tools, Bits & Downhole Equipment (IMAHAMAB), Wear Parts & Consumables (GET, Liners, Drill Bits, Grinding Media) (IMAKANAH)

Keywords

• Ground control chemicals
• Mining resin injection
• Phenolic foam systems
• Rock bolting equipment
• Tunneling ground support

Headquarters

HQ city

Rouhling

HQ country

France

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Ground Control Chemical Products: Sale of proprietary resin and foam products including phenolic foams, polyurethane resins, silicate resins, and pumpable resins for ground consolidation, cavity filling, water sealing, and rock bolting in mining and tunnelling applications.
2. Injection Equipment and Pumps: Sale of injection pumps (MAXI STANDARD, MULTI-COMPACT, MINI COMPACT, SUPRA), accessories (mixing guns, injection pipes, packers, hoses), and SKID units for resin injection operations.
3. Technical Services: Technical assistance including on-site expert advice, equipment management, on-site assistance and support, training, and contracting services provided through local distributors and contractors.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

Weber Mining manufactures and sells proprietary chemical products (phenolic foams, polyurethane resins, silicate resins, methacrylate resins, and pumpable resins) along with injection equipment (pumps, SKID units) and self-drilling rockbolt systems (MARIBOLT) used for strata consolidation, cavity filling, water sealing, ventilation control, fire prevention, and rock support in underground coal mining, hard rock mining, and civil tunneling operations.

Product overview

Weber Mining is a manufacturer of chemical products and equipment for ground control in mining and tunneling operations. The product portfolio consists of three main categories: (1) Chemical products including phenolic foams (MARIFLEX, ROCSIL), polyurethane resins (MARITHAN, MARISTOP), silicate resins (MARISIL, MARIFOAM), and methacrylate resins (MARIGEL) used for cavity filling, strata consolidation, water sealing, ventilation control, and firefighting; (2) Equipment including injection pumps (MAXI STANDARD, MULTI-COMPACT, MINI COMPACT, SUPRA), injection accessories, and the SKID Thixo injection unit; (3) Rock support products including the MARIBOLT self-drilling anchor system available in multiple variants. The products work together as a complete ground control solution where resins and foams are injected using Weber's pumps and equipment to provide strata stabilization, water control, and rock support in underground mining and civil tunneling applications.

Differentiator

Problem solved

Functional benefit

Brands

• MARIFLEX: Phenolic foam product line for cavity filling, sealing, ventilation control, and firefighting operations with various expansion rates and setting times
• ROCSIL
• MARITHAN
• MARISTOP
• MARISIL
• MARIFOAM
• MARIGEL
• FENOFLEX
• FENOFOAM
• MARISPRAY
• MARIBOLT
• IGLONEIGE
• Potentia

Products and services

• MARIFLEX® Phenolic Foams High expanding 2-component phenolic foam systems for rapid filling of large voids and cavities with excellent resistance to fire. Available in 10 different variants with varying expansion ratios. Used for air and gas sealing, consolidation of fractured strata, cavity filling, and goaf sealing in underground mining.
• ROCSIL® FOAM Phenolic Foams High expanding 2-component phenolic foam systems designed for rapid filling of large voids and cavities with fire resistant properties. Used for ventilation control and cavity filling in mining applications.
• MARITHAN® Polyurethane Resins 2-component polyurethane resin systems designed for ground consolidation and water sealing. Injected in strata with low viscosity mix running in cracks down to 0.1mm. Swells and bonds layers when saturated with water to a solid mass with excellent mechanical properties.
• MARITHAN LT Low Exothermic Resin

Quantifiable outcome

• High expansion foams reduce transportation time to working areas compared to conventional cementitious options
• +2 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Three partnerships are on record, tiered core and regional.

• Wilson Mining ServicescoreChannel Partner/ Reseller/ DistributorAustralian distributor partnership established in 2013 to expand Australian business. Wilson Mining Services was subsequently acquired by Mastermyne (METAROCK) in 2019.
• Mastermyne (METAROCK)coreChannel Partner/ Reseller/ DistributorGlobal agreement signed in 2019 with Australian leading contracting company. Mastermyne acquired Wilson Mining Services (Weber's previous Australian distributor) and continues as a key distribution and contracting partner.
• New Concept MiningregionalChannel Partner/ Reseller/ DistributorSouth African distribution partner for ground control products and services.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Fosroc: Fosroc is a global specialty construction chemicals group offering resin-based ground consolidation, water-stop, and tunnelling products. Comparable to Weber's MARITHAN polyurethane and MARIGEL methacrylate resins for strata sealing, water sealing, and tunnelling applications, though Fosroc serves a broader construction chemicals portfolio.
• Boart Longyear: Boart Longyear is a global drilling services and consumables provider for mineral exploration and mining. Through its historical Minova exposure and rock bolt consumables, Boart Longyear addresses a related ground control customer base to Weber, although its primary focus is drilling rather than chemical injection.
• Sika AG: Sika is a large specialty chemicals company with a dedicated Underground & Tunnelling product range covering waterproofing membranes, injection resins, and rock consolidation systems. Sika competes with Weber in tunnelling water sealing and ground consolidation, though from a much broader construction chemicals base.
• Jennmar: Jennmar is a major U.S.-headquartered manufacturer of ground control products (roof bolts, resin cartridges, standing supports, chemicals) for mining and infrastructure. Now Weber's parent company following the 2025 acquisition, Jennmar is both a competitor and channel partner for Weber's resin and rockbolt products across the Americas and Asia-Pacific.
• BASF Master Builders Solutions: BASF's Master Builders Solutions provides injection resins, polyurethane and silicate-based systems, and tunnelling construction chemicals used in underground mining and infrastructure. Overlaps with Weber's chemical product range, particularly for ground consolidation, water sealing, and cavity filling in tunnels and mines.
• Mapei Underground Construction Team: Mapei provides resin injection systems and ground consolidation chemicals through its Underground Construction Technology (UTT) line, focused on tunnels and mining. Directly comparable to Weber's MARISIL silicate resins and MARITHAN polyurethane resins used in ground stabilization and water control in tunnelling.

Direct peers

• DSI Underground: DSI Underground (part of DYWIDAG Group) is a global supplier of ground support products including rock bolts, anchor systems, and resin cartridges for mining and tunneling. Comparable to Weber's MARIBOLT self-drilling anchor range and resin injection offering in hard rock and coal mining applications.
• Normet Group: Normet manufactures chemical products (sprayed concrete accelerators, injection resins, foams), rock bolts, and application equipment for underground mining and tunnelling. Weber's resin/foam + rockbolt + pump offering closely mirrors Normet's integrated ground control portfolio, serving the same coal, hard rock, and civil tunneling end markets.
• Minova: Minova (part of the Boart Longyear group until Carve-out) is a leading supplier of ground support chemicals, rock bolts, and resins for underground mining and tunneling — directly comparable to Weber's MARIFLEX/ROCSIL phenolic foams, MARITHAN polyurethane resins, and MARIBOLT self-drilling anchors. Both companies compete for the same strata consolidation, cavity filling, and rock bolting use cases in coal and hard rock mining.

Emerging players

• Saint-Gobain Formula / Chryso: Saint-Gobain's Formula/Chryso subsidiary supplies specialty admixtures, resins, and injection chemicals for construction, mining, and tunnelling. Partial overlap with Weber's specialty chemical ground control range, particularly in injection resins for water sealing and ground consolidation.

Market position

Strengths5 records

Weaknesses6 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 Weber Mining