Showa Denko Carbon, Inc.

What Showa Denko Carbon, Inc. does

Resonac Graphite Business Unit (the entity behind Showa Denko Carbon, Inc.) is a wholly-owned subsidiary of RESONAC Holdings Corporation (TSE: 4004) and operates as one of the world's leading manufacturers of ultra-high-power synthetic graphite electrodes for electric arc furnace (EAF) steelmaking, ladle furnaces, and non-ferrous smelting. The unit produces electrodes in diameters from 350–800 mm across four manufacturing sites — Ridgeville, South Carolina (Americas HQ); A Coruña, Spain and Bad Goisern, Austria (EMEA); and Omachi, Japan (sole-source PIN manufacturing for all global sites) — and serves enterprise steelmakers via direct regional sales organizations in the Americas, EMEA, and Asia. Its product portfolio now also spans Battery Anode Materials (BAM) for electric-vehicle lithium-ion batteries following the January 2025 integration of the Energy Storage Materials and Tribology (ESTM) business line, as well as carbon brushes, sliding materials, and granulated graphite.

Commercially, the business operates a direct enterprise field-sales model with multi-year GE Bundle contracts, quote-based pricing, and technical service support through regional ATC-E centers. The September 2024 announcement of a minimum 20% global price increase on new orders signals coordinated industry response to prior oversupply, while AMI Automation (Mexico) provides an integrated software-and-hardware layer — DigitARC PX3 electrode regulator, SmartARC/SmartFurnace modules, AI Expert Systems, scrap classification, and DC furnace power rectifiers — that ties consumable electrode sales to long-term EAF optimization engagements.

Differentiators include a century-long legacy in graphite manufacturing, unique PIN technology, the world's first third-party verified Environmental Product Declaration for graphite electrodes, renewable-electricity-backed production at the Austria and Spain plants (100% and 40% respectively), ISO 9001/14001/45001/50001 certifications, EcoVadis medals, and university research partnerships via the Resonac-UDC Sparking Truth Chair. The unit is positioned as a sustainability-led graphite platform spanning steelmaking decarbonization, EAF automation, and EV battery materials.

Name

Showa Denko Carbon, Inc.

Legal name

RESONAC Holdings Corporation

Website

https://graphite.resonac.com

Company type

Public

Founded year

1931

Operating status

Operating

Headcount range

251–500 employees

Short description

Resonac Graphite Business Unit is a global manufacturer of ultra-high-power synthetic graphite electrodes for electric arc furnace steelmaking, plus battery anode materials and EAF automation systems, serving enterprise steelmakers and EV battery producers across the Americas, EMEA, and Asia as a subsidiary of Resonac Holdings.

Ownership category

akta.pro rank

Product category

Industrial Graphite & Carbon Materials

NAICS

Carbon and Graphite Product Manufacturing (335991)

SIC

Abrasive, Asbestos & Misc Nonmetallic Mineral Prods (3290)

akta.pro primary industry

Anode Materials Manufacturing (Graphite, Silicon, LTO) (EUAFABAC)

akta.pro secondary industries

Functional Carbon Fillers (Carbon Black, Graphite) (IMAEAFAO), Synthetic Graphite Feedstocks (Petroleum Needle Coke & Pitch) (IMAKAFAE)

Keywords

• Synthetic graphite electrodes
• Electric arc furnace consumables
• Battery anode materials
• Carbon industrial products
• EAF automation systems

Headquarters

HQ city

Ridgeville

HQ country

United States

HQ region

North America

Offices10 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Graphite Electrode Sales: Production and sale of synthetic graphite electrodes (350-800mm diameter) for Electric Arc Furnace steelmaking, ladle furnaces, and non-ferrous smelting applications. Electrodes are consumed during melting process and require replacement.
2. Battery Anode Materials: Production and commercialization of Battery Anode Materials (BAM) for electric vehicles (EV) as part of the ESTM business line integration effective January 1, 2025.
3. EAF Automation & Optimization Systems: DigitARC PX3 Electrode Regulator, SmartARC & SmartFurnace modules, AI Expert Systems, DC Furnace Power Rectifier systems through AMI Automation integration.
4. Granulated Graphite & Carbon Products: Granulated synthetic graphite for mobility and battery technologies, carbon brushes, and carbon sliding materials.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels7 records

Core offering

Showa Denko Carbon, Inc. (Resonac Graphite Business Unit) manufactures and globally supplies ultra-high-power synthetic graphite electrodes (350–800mm diameter) used as consumable electrodes in Electric Arc Furnace (EAF) steelmaking, ladle furnaces, and non-ferrous smelting. The company also produces connecting pins, battery anode materials for lithium-ion EV batteries, granulated synthetic graphite, carbon brushes, carbon sliding materials, and EAF automation/optimization systems (DigitARC PX3, SmartARC/SmartFurnace, AI expert systems) via its AMI International subsidiary.

Product overview

Resonac Graphite Business Unit (RGBU) is a leading global manufacturer of synthetic graphite electrodes and advanced carbon materials, operating as a subsidiary of Resonac Holdings Corporation. The company operates manufacturing facilities in Asia (Japan), Europe (Spain, Austria, Germany), and North America (USA, Mexico through AMI Automation). The product portfolio centers on graphite electrodes for Electric Arc Furnace (EAF) steelmaking, with supporting products including connecting pins and granulated graphite. The company has expanded into battery anode materials for electric vehicles through its ESTM business line integration. AMI Automation subsidiary provides EAF automation and control solutions including the DigitARC PX3 electrode regulator, SmartARC/SmartFurnace systems, and AI-based expert systems for steelmaking optimization. Technical services are delivered through the AMITech Center – Europe (ATC-E) in Spain.

Differentiator

Problem solved

Functional benefit

Brands

• Sparking Truth: Sustainability brand initiative for ESG transformation and steel industry stakeholder collaboration
• Our Way to Excellence (OWEx)
• Employer of Choice
• ΩMEGA Electrode
• AMITech Center Europe (ATC-E)
• ESTM
• Resonac-UDC Sparking Truth Chair
• LISTE-Resonac
• Bad News First

Products and services

• Graphite Electrodes Ultra-high-power synthetic graphite electrodes manufactured in standard diameters from 350mm to 800mm (14–32 inches) and lengths from 1,500mm to 3,600mm (60–142 inches), with typical weights of 0.3–3.2 tons. Used as consumable electrodes in Electric Arc Furnace (EAF) steelmaking, ladle furnaces, and non-ferrous smelting applications. Designed for steel producers requiring low consumption rates (1–2 kg graphite per ton of liquid steel), high thermal performance (3,500°C arc temperature), and 45–90 minute cycle times.
• ΩMEGA Electrode Ladle furnace electrode manufactured in Europe using 100% renewable electricity. Developed to address unmet customer needs for sustainable ladle furnace performance.
• Connecting Pins Graphite electrode connecting pins that join multiple electrodes together in the EAF column assembly. Manufactured exclusively at the Omachi Plant in Japan using unique PIN manufacturing technology that serves as the sole source for all six global production sites.
• Battery Anode Material (BAM) Graphite anode material for Lithium-Ion Batteries used in electric vehicles (EV) and energy storage systems. Enhances battery fast-charging capability and lifetime. Resonac is developing an innovative production process that significantly reduces CO2 emissions compared to conventional methods — graphite represents only ~10% of battery cost but approximately 50% of the CO2 footprint.
• Granulated Synthetic Graphite and Carbon Products

Quantifiable outcome

• 70% reduction in CO2 emissions per ton of steel compared to Blast Furnace route
• +7 more outcomes

Named customers3 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators14 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• GrafTech International: GrafTech International is a leading global manufacturer of graphite electrodes for electric arc furnace steelmaking — the most direct competitor to Resonac Graphite, with overlapping product portfolios (ultra-high-power graphite electrodes), overlapping customers (EAF steelmakers), and similar geographic reach across Americas, EMEA, and Asia.
• Tokai Carbon: Tokai Carbon is a Japanese carbon and graphite products manufacturer with a large graphite electrode business serving EAF steelmakers globally. Comparable to Resonac Graphite as a fellow Japanese-headquartered, globally diversified synthetic graphite electrode producer with battery materials ambitions.
• HEG Limited: HEG Limited is one of India's largest graphite electrode manufacturers and a major exporter to global EAF steelmakers. Directly competes with Resonac on large-diameter graphite electrodes and was specifically named alongside Chinese producers in the U.S. trade petition context.
• Nippon Carbon: Nippon Carbon is a Japanese specialty carbon and graphite manufacturer with products spanning graphite electrodes, carbon brushes, and battery materials. Comparable to Resonac Graphite as a fellow Japanese carbon materials specialist with overlapping end markets in steel, electronics, and emerging battery applications.
• SEC Carbon (Showa Denko legacy brand; Nippon Steel subsidiary): SEC Carbon is a Japanese graphite electrode manufacturer originally spun out of Showa Denko and now under Nippon Steel, directly competing with Resonac Graphite in the Japanese and global graphite electrode market with similar product categories for EAF and ladle furnace applications.

Broad incumbents

• POSCO Future M: POSCO Future M (formerly POSCO Chemical) is a major Korean battery materials producer, including natural and artificial graphite anode materials for EV lithium-ion batteries. Overlaps with Resonac's ESTM-integrated BAM business as a broad incumbent in the battery materials space with scale advantages.
• Shanshan (Shanghai Putailai / Shanshan): Putailai (Shanshan) is one of the world's largest battery anode material producers, with vertically integrated operations spanning coal-to-coke, graphite processing, and silicon-based anodes. A direct competitor to Resonac's emerging BAM business with significant scale in artificial graphite anodes.
• BTR New Material Group: BTR is a leading Chinese battery materials company and a top global producer of natural and artificial graphite anode materials. Competes with Resonac's BAM business and benefits from China's integrated needle-coke-to-anode supply chain.

Emerging players

• Syrah Resources: Syrah Resources operates the Vidalia active anode material (AAM) facility in Louisiana, supplying natural graphite anode materials to EV battery makers. Comparable to Resonac's BAM business as an emerging battery anode materials supplier focused on ex-China supply chains and customer diversification.
• Novonix: Novonix is developing synthetic graphite anode materials for lithium-ion batteries with a focus on low-emission production processes in North America. Comparable to Resonac Graphite's BAM business as an emerging player pursuing low-CO2 anode materials for the EV battery supply chain.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/resonac-graphite-business-unit

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries8 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 Showa Denko Carbon, Inc.