SM steel

What SM steel does

SM Steel (SM스틸) is a South Korean stainless steel (STS) manufacturer and wholly-owned subsidiary of the SM Group conglomerate, operating three integrated business pillars: STS plate manufacturing at the Gunsan factory (commissioned June 2020 at a 1,500 billion KRW investment, with 100,000-ton annual capacity expandable to 108,000 tons), POSCO-designated STS coil processing at the Siheung factory (operating since 1994 as Korea's first POSCO STS processing center), and STS pipe/tube production via TIG welding at Siheung. Its core technology is centered on Japanese-built 4th-generation leveling equipment — a 5,700-ton Roll Leveler (Steel Plantec) and 2,500-ton Press Leveler (KOJIMA) — enabling plate widths up to 3,750mm and thicknesses from 5mm to 200mm across grades including 304, 316, Duplex 2205, and S31254. The company sells under its proprietary 'Super Plate / SuPer Plate' brand and holds all 9 IACS classification society certifications plus ISO 9001, 14001, 45001, 19443, JIS, PED, and CPR.

SM Steel's go-to-market is a direct enterprise field-sales model with five regional sales branches (Siheung, Busan, Daegu, Gwangju, Cheonan) and two dedicated STS plate logistics centers (Busan from Feb 2021, Siheung from March 2022) each maintaining ~700 tons of inventory for immediate pickup. Distribution to steel service centers accounts for over 70% of total sales volume, with primary end-use segments being shipbuilding and offshore (LNG tanks, hulls, offshore structures), petrochemical and chemical plants (pressure vessels, storage tanks), construction, automotive (EV battery and hydrogen fuel cell components), and consumer appliances. Pricing is quote-based per B2B inquiry. Export sales are channeled through a Japan subsidiary (established 2021) and channel partners such as Singapore-based MIKAS.

Revenue mechanics are predominantly one-time transactional sales of physical stainless steel products, with the company reporting KRW 220.2 billion in 2018 revenue, KRW 212.1 billion in 2017, and KRW 200.2 billion in 2016, operating from a debt-to-equity ratio of 56% as of end-2019. The strategic posture is import substitution: roughly 50% of Korea's ~140,000-ton annual STS plate market has historically been served by imports, and SM Steel's Gunsan capacity targets this displacement while expanding into nuclear (ISO 19443) and premium duplex grades. Customer concentration sits at steel service centers and distributors, with named customers including Hangdo ST, Special Metal Service, and Oksu Metal.

Name

SM steel

Legal name

에스엠스틸 주식회사

Website

https://smsteel.co.kr

Company type

Private

Founded year

1994

Operating status

Operating

Headcount range

11–50 employees

Short description

SM Steel is a South Korean stainless steel manufacturer, subsidiary of SM Group, operating STS plate production at its Gunsan factory (100,000-ton capacity), POSCO-designated coil processing at Siheung, and STS pipe manufacturing, serving shipbuilders, petrochemical plants, and steel service centers primarily in Korea with growing export presence in Japan and Southeast Asia.

Ownership category

akta.pro rank

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Offices9 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. STS Plate Manufacturing and Sales: Primary revenue from manufacturing and selling stainless steel plates (STS plates) at the Gunsan factory, with annual production capacity of 100,000 tons (54,000 tons in Phase 1). Products include 304, 316, Duplex 2205, S31254 and other premium grades in thicknesses from 5mm to 200mm.
2. STS Coil Processing and Sales: Processing and sales of STS hot-rolled and cold-rolled coil products at the Siheung factory (POSCO STS designated processing center). Produces cut-to-length and slitted coil products for distribution and end-use customers.
3. Stainless Steel Pipe/Tubes Sales: Manufacturing and sale of stainless steel pipes and tubes including piping, general piping, heat exchanger tubes, seamless tubes, and structural tubes at Siheung pipe factory.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels6 records

Core offering

SM Steel manufactures stainless steel (STS) plates at its Gunsan factory under the "SuPer Plate" brand, processes STS coils at the POSCO-designated Siheung Service Center, and produces stainless steel pipes and tubes at the Siheung pipe factory. It supplies shipbuilders, petrochemical/plant constructors, distributors, and manufacturers through direct sales and dedicated plate logistics centers in Busan and Siheung.

Product overview

SM스틸 (SM Steel) operates as a comprehensive stainless steel (STS) company with three main business pillars: (1) STS Plates manufactured at the Gunsan factory under the 'SuPer Plate' brand, featuring world-class quality with ultra-wide widths up to 3,750mm; (2) STS SSC (Service Center) at Shihung providing POSCO-designated coil processing including slitting, shearing, and surface treatment; and (3) STS Pipes manufactured at Shihung factory using TIG welding for various industrial applications. The company also operates regional sales offices and logistics centers nationwide including Busan and Shihung plate logistics centers for rapid delivery.

Differentiator

Problem solved

Functional benefit

Products and services

• SuPer Plate (Stainless Steel Plate) Flagship stainless steel (STS) plate brand produced at SM Steel's Gunsan factory using a 5,700-ton 4th-generation roll leveler and 2,500-ton press leveler. Available in grades including 304, 304L, 316, Duplex 2205, and S31254, in thicknesses from 5mm to 200mm and widths up to 3,750mm. Sold to shipbuilders, petrochemical, and plant manufacturers.
• STS SSC (Stainless Steel Service Center) POSCO-designated stainless steel coil processing service at the Siheung factory. Performs slitting, shearing, cut-to-length, and surface finishing for STS hot-rolled and cold-rolled coil products, serving distributors and end-use manufacturers.
• STS Stainless Steel Pipes and Tubes Stainless steel pipes and tubes manufactured via TIG welding at the Siheung pipe factory, including general piping tubes, heat exchanger tubes, structural tubes, mechanical structural tubes, and precision-drawn semi-seamless tubes. Sold to plumbing, process piping, and structural fabricators.

Quantifiable outcome

• Plate production capacity: 54,000 tons/year (Phase 1), expandable to 108,000 tons
• +4 more outcomes

Named customers3 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Five partnerships are on record, tiered core.

• MIKAS (Singapore)coreChannel Partner/ Reseller/ Distributor · 1 January 2021Singapore-based stainless steel distributor; first export customer for SM Steel's STS plate products. MIKAS has significant influence in the Southeast Asian stainless steel industry.
• Steel Plantec (Japan)coreTechnology or Integration · 1 January 2021Japanese equipment manufacturer supplying the 4th-generation Roll Leveler (5,700-ton capacity) — the core production equipment at the Gunsan factory.
• KOJIMA (Japan)coreTechnology or Integration · 1 January 2021Japanese equipment manufacturer supplying the Press Type Leveler (2,500-ton) for the Gunsan STS plate factory.
• POSCO (포스코)coreStrategic or Co-development Partner · 1 January 2019POSCO is the primary raw material supplier to SM Steel, providing Black Plate and STS coil materials. SM Steel is a POSCO-designated STS processing center. The two companies also collaborate on new steel grade development including Duplex and S31254 premium grades.
• SM Group (SM그룹)coreOthers · 1 December 2016SM Steel became a subsidiary of SM Group in December 2016 following the parent company's legal management conclusion. SM Group consists of ~65 affiliates with total assets ~9.8 trillion KRW, operating in construction, shipping, manufacturing, services, and media sectors.

Scale indicators9 records

Recent moves13 records

Expansion highlights7 records

Direct peers

• Acerinox: Spanish-headquartered global stainless steel flat product producer with North American (NAS) and South African (Columbus Stainless) operations. Comparable product range in austenitic and duplex stainless plate, competing for the same shipbuilding, chemical, and architectural end-uses.
• Outokumpu: Europe's largest producer of stainless steel flat products, with comparable coil-to-plate operations and a similar focus on specialty grades (Duplex, high-corrosion applications). Outokumpu's global footprint competes with SM Steel's export ambitions into Southeast Asia and Australia.
• Jindal Stainless: India's largest stainless steel manufacturer with integrated melting, rolling, and finishing facilities. Jindal is the most relevant Asian competitor outside China for austenitic and duplex stainless plate, competing for export share into Southeast Asia where SM Steel has established its first overseas subsidiary.
• Yieh United Steel Corp (YUSCO): Taiwan's largest stainless steel flat product manufacturer with integrated cold-rolling mills. YUSCO competes head-to-head with SM Steel in the Asia-Pacific stainless steel plate market and shares the import-substitution dynamic in regional end-markets like shipbuilding and petrochemical.
• Dongkuk Steel Mill: Korean steel plate and structural steel producer that also operates steel service centers. Dongkuk is the closest direct competitor in the Korean STS plate and coil processing market, competing for the same distributor and shipbuilder customers.
• Nippon Steel Stainless Steel: Japanese specialty stainless steel subsidiary of Nippon Steel. SM Steel's Japan subsidiary and JIS certification are explicitly aimed at competing in this domestic market with shorter lead times and Korean-cost production.

Broad incumbents

• POSCO: Korea's largest steelmaker and the primary raw material supplier to SM Steel via POSCO Black Plate and STS coil. POSCO also produces stainless steel plate at scale, making it both upstream partner and a broader incumbent competing for the same end-markets.
• Hyundai Steel: Korea's second-largest steelmaker and the steel arm of Hyundai Motor Group. While primarily carbon steel, Hyundai Steel supplies Korean shipbuilders and construction with a broad portfolio that overlaps with SM Steel's domestic end-market relationships.
• TISCO (Taiyuan Iron & Steel Group): China's flagship stainless steel producer with massive scale across austenitic, ferritic, and duplex grades. TISCO's cost structure and capacity significantly exceed SM Steel's, but it competes directly for shipbuilding plate and import-substitution share across Asia.

Emerging players

• Tsingshan Holding Group: Chinese stainless steel giant that has reshaped global supply through vertical integration (from nickel to finished stainless). Tsingshan's cost-led capacity expansion is the principal force keeping global STS plate prices competitive and constraining SM Steel's pricing power.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/smsteel

Compliance18 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries3 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 SM steel