Hüttenwerke Krupp Mannesmann

What Hüttenwerke Krupp Mannesmann does

Hüttenwerke Krupp Mannesmann (HKM) is a Duisburg, Germany-based integrated steel producer operating a single large-scale facility that manufactures approximately four million tons of liquid steel per year through continuous casting operations. The company's product portfolio centers on crude steel and intermediate steel grades supplied to industrial downstream customers across the German and European steel value chain. HKM's core technical platform is its continuous casting line, into which it has integrated the Primetals Technologies Mold Expert Fiber fiber optic-based mold monitoring system, providing real-time thermal visualization and detection of critical casting events such as stickers, cold spots, and longitudinal cracks to support the production of advanced intermediate steel grades.

HKM is a privately held joint venture whose ownership is in active transition. Thyssenkrupp AG, the historical parent, is divesting from HKM as part of a broader restructuring of its steel business, including the sale of 20% of Thyssenkrupp Steel shares to Czech EP Group with the stated aim of raising that stake to 50%. Salzgitter AG holds a stake in HKM and is proceeding with a planned takeover, supported by EUR 322 million of additional SALCOS-related funding and analyst recognition of the strategic rationale for vertical integration into crude steel supply. As a B2B industrial commodity producer, HKM distributes via direct industrial sales relationships and is increasingly intertwined with the SALCOS low-carbon steel transformation roadmap.

Name

Hüttenwerke Krupp Mannesmann

Legal name

Hüttenwerke Krupp Mannesmann

Website

https://hkm.de

Company type

Private

Founded year

1909

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Hüttenwerke Krupp Mannesmann is a Duisburg, Germany-based integrated steel producer manufacturing approximately four million tons of liquid steel per year via continuous casting for downstream industrial buyers.

Ownership category

akta.pro rank

Product category

Steel Manufacturing

NAICS

Industrial Machinery Manufacturing (33324)

SIC

Steel Pipe & Tubes (3317), Industrial Process Furnaces & Ovens (3567)

akta.pro primary industry

Steelwork & Fabrication Facilities (Plate/Section Processing, Welding Lines) (IMAJALAH)

akta.pro secondary industry

Industrial Furnaces, Kilns & Thermal Processing Equipment (IMAHAEAE)

Keywords

• Continuous casting steel
• Crude steel production
• Intermediate steel grades
• Steel manufacturing
• Liquid steel production

Headquarters

HQ city

Duisburg

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Distribution channels1 record

Marketing channels1 record

Core offering

Hüttenwerke Krupp Mannesmann (HKM) is a German steel producer that operates continuous casting operations at its Duisburg plant to manufacture crude steel and advanced intermediate steel grades, with annual liquid steel production capacity of approximately four million tons. The company leverages the Mold Expert Fiber system from Primetals Technologies — a fiber optic-based temperature measurement technology — to enable real-time mold monitoring and the development of advanced steel grades for downstream industrial buyers.

Product overview

Hüttenwerke Krupp Mannesmann (HKM) operates as a steel producer with a focus on crude steel manufacturing. The company produces approximately four million tons of liquid steel annually at its Duisburg plant. Its product portfolio includes advanced intermediate steel grades produced through continuous casting operations, enhanced by advanced mold monitoring technology (Mold Expert Fiber system) supplied by Primetals Technologies. The company is undergoing green transformation as part of its parent company Thyssenkrupp's restructuring.

Differentiator

Problem solved

Functional benefit

Products and services

• Crude Steel Production Continuous casting-based production of approximately four million tons of liquid steel annually at HKM's Duisburg facility, supplied to downstream industrial buyers as raw material for steel processing and manufacturing.
• Advanced Intermediate Steel Grades Specialized intermediate steel grades developed through continuous casting operations enhanced by advanced mold monitoring technology from Primetals Technologies, targeted at industrial manufacturers requiring higher-grade steel input.

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature1 record

Partnerships

One partnership is on record.

• Primetals TechnologiescoreTechnology or Integration · 9 February 2026HKM selected Primetals Technologies to supply Mold Expert Fiber systems for installation at its Duisburg plant. The advanced mold monitoring technology uses fiber optic-based temperature measurement for real-time visualization of continuous casting operations, enabling detection of critical events such as stickers, cold spots, and longitudinal cracks. The partnership supports HKM in developing advanced intermediate steel grades as part of its operations producing four million tons of liquid steel annually.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Salzgitter AG: Salzgitter AG is HKM's joint venture partner and has a planned takeover of HKM. Both are German steel producers operating in the same market, sharing ownership of HKM, with Salzgitter's SALCOS program representing the integrated green steel strategy for the combined entity.
• Thyssenkrupp Steel Europe: Thyssenkrupp Steel Europe is HKM's parent division, a major German flat steel producer. HKM was historically part of the Thyssenkrupp steel ecosystem, producing crude steel as an input, making the two directly comparable in steelmaking capacity and serving the same European industrial customer base.
• Saarstahl AG: Saarstahl is a German quality steel producer specializing in wire rod and bar steel using electric arc furnace technology. As a German competitor in the European specialty steel market, it serves similar downstream customers in automotive and industrial applications as HKM.
• voestalpine AG: voestalpine is a major Austrian steel and steel processing group operating integrated steelworks, specialty steel, and automotive supply. As a European integrated steel producer with similar crude steel output scale and a focus on high-grade specialty products, it is a directly comparable peer in product strategy and geography.
• Aktien-Gesellschaft der Dillinger Hüttenwerke: Dillinger Hütte is a German heavy steel plate producer located near the French border. As a German-based integrated steel producer with similar technology focus on continuous casting and quality specialty grades, it competes with HKM in supplying high-grade steel to industrial customers in Europe.

Regional players

• SSAB AB: SSAB is a Nordic specialty steel producer and a global leader in fossil-free steel (HYBRIT). While based in Sweden rather than Germany, it competes with HKM in high-strength specialty steel grades and represents the strategic benchmark for green steel transformation in the European steel industry.

Broad incumbents

• ArcelorMittal: ArcelorMittal is the world's largest steel producer with significant European operations including Germany. As a broad incumbent it competes with HKM in flat steel and crude steel markets and serves overlapping automotive, construction, and industrial customers across Europe.
• Tata Steel Nederland (formerly HKS Metals): Tata Steel's Netherlands operations (formerly Corus/HSM) are a major European flat steel producer based in IJmuiden. As a broad incumbent in the European crude steel market, it competes with HKM in supplying flat and coated steel products to automotive and industrial customers.
• Nucor Corporation: Nucor is the largest US steel producer using electric arc furnace (mini-mill) technology. While geographically separate, it represents a benchmark for capital-efficient steel production and is increasingly relevant as European producers transition away from blast furnace routes.

Others

• Primetals Technologies: Primetals Technologies is a global supplier of continuous casting and rolling mill technology, and HKM's core technology partner for the Mold Expert Fiber system. It is an ecosystem enabler rather than competitor, providing the production technology that underpins HKM's quality advantage.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

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 →

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