Bangkok Steel Industry Public Company

What Bangkok Steel Industry Public Company does

Bangkok Steel Industry Public Company Limited (บริษัท กรุงเทพผลิตเหล็ก จำกัด (มหาชน)) is a Thai steel manufacturer and industrial equipment producer established in 1991 and operating under public limited company (มหาชน) structure. The company runs two production facilities: a main plant and headquarters in Phra Pradaeng, Samut Prakan Province, and a second manufacturing facility in Wang Noi, Phra Nakhon Si Ayutthaya Province dedicated to crane and hoist products. The company employs between 251 and 500 staff.

The product portfolio spans three core lines: long steel products (round steel and deformed rebar for construction), flat steel products (galvanized steel/GI, Galvalume/GL, and color-coated roofing sheets marketed under the Scanroof and COLORPRIME sub-brands), and crane and hoist systems (chain hoists, wire rope hoists, explosion-proof hoists, electric overhead cranes, and jib cranes distributed under the SWF brand). The crane division is ISO 9001 certified and supported by an aftermarket service portfolio covering installation, statutory inspection, preventative maintenance, repair, operator training, and test-weight rental. Underlying technology is conventional metallurgical processing and mechanical lifting engineering with no disclosed proprietary AI or software components.

Revenue is generated through one-time product sales of steel and crane equipment, recurring crane services, and spare parts, distributed via direct sales (with dedicated phone lines by product category) and a nationwide authorized distributor network complemented by certified-technician referrals for installation. End customers span twelve-plus industries including paper, steel, plastic, sugar, electrical, engineering & construction, transformer manufacturing, government and state enterprises, cement, coil centers, automotive, and precast concrete. Operations are exclusively domestic to Thailand.

Name

Bangkok Steel Industry Public Company

Legal name

บริษัท กรุงเทพผลิตเหล็ก จำกัด (มหาชน)

Website

https://bangkoksteel.co.th

Company type

Public

Founded year

1991

Operating status

Operating

Headcount range

251–500 employees

Short description

Bangkok Steel Industry Public Company is a Thai steel manufacturer producing long steel, flat steel roofing products, and SWF-branded crane and hoist systems, serving construction and industrial customers across Thailand through direct sales and an authorized distributor network.

Ownership category

akta.pro rank

Product category

Steel Manufacturing

NAICS

Overhead Traveling Crane, Hoist, and Monorail System Manufacturing (333923), Rolling and Drawing of Purchased Steel (33122), Steel Product Manufacturing from Purchased Steel (3312)

SIC

Construction, Mining & Materials Handling Machinery & Equip (3530), Sheet Metal Work (3444)

akta.pro primary industry

Coated & Plated Steel (Galvanized, Galvalume, Tinplate, Electrogalvanized, Color-Coated) (IMAKABAG)

akta.pro secondary industries

Cranes, Hoists & Overhead Material Handling (Industrial) (IMAHABAE), Crane & Hoist Components (Wire Rope, Chain, Drums, Sheaves, Motors, Controls) (IMAHAJAK)

Keywords

• Steel manufacturing
• Long steel products
• Flat steel products
• Industrial crane systems
• Construction materials

Headquarters

HQ city

Ayutthaya

HQ country

Thailand

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Revenue model

1. Steel Products Sales: Manufacturing and sales of long steel (round steel) and flat steel products (galvanized steel, Galvalume, color-coated roofing sheets) to construction, manufacturing, and industrial customers
2. Crane and Hoist Sales: Sales of SWF brand hoists, cranes, and lifting equipment including explosion-proof hoists, light cranes, and rope hoists
3. Crane Services: Installation, inspection, repair, preventative maintenance, operator training, and rental/sale of test weight blocks for cranes
4. Spare Parts and Accessories: Sales of crane spare parts and accessories

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Bangkok Steel Industry Public Company manufactures and sells long steel products (round steel, rebar/deformed steel bars) and flat steel products (galvanized GI steel, galvalume GL steel, and color-coated steel sheets and roofing materials) for construction and industrial customers. It also produces and distributes SWF-brand hoists, cranes, and lifting equipment (chain hoists, rope hoists, explosion-proof hoists, overhead and jib cranes) and provides related crane installation, inspection, repair, maintenance, and operator training services.

Product overview

Bangkok Steel Industry Public Company (BSI) is a Thai steel manufacturing and industrial equipment company offering three core product lines: long steel products (round steel, deformed rebar), flat steel products (galvanized steel GI, galvalume GL, color-coated steel sheets, roofing materials like Scanroof), and hoist & crane systems (chain hoists, wire rope hoists, explosion-proof hoists, electric overhead cranes, jib cranes, special cranes). The company also provides related services including crane installation, repair, inspection, maintenance, operator training, and preventative maintenance programs. The product portfolio targets the construction, manufacturing, and industrial sectors across Thailand.

Differentiator

Problem solved

Functional benefit

Brands

• Scanroof: Roofing steel sheet products including corrugated and plain galvanized steel roofing materials.
• COLORPRIME
• SWF

Products and services

• Long Steel Products (ผลิตภัณฑ์เหล็กทรงยาว)

Named customers12 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• SWF Hoist SystemcoreTechnology or IntegrationBangkok Steel serves as the distributor and manufacturer of SWF brand hoist and crane products in Thailand, including SWF Explosion Proof Hoists, SWF LightCranes Chainster Hoists, and SWF RopeHoists CraneKits. The company provides installation, service, and spare parts for SWF products.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Liebherr: Large European industrial group with a dedicated crane and lifting equipment division; competes with BSI in industrial and heavy-duty cranes but at much broader scale and geographic reach.
• POSCO (Thailand): Global steel major with Thai operations supplying a broad range of steel products; competes with BSI at the upper end of the Thai steel market with far greater scale.

Direct peers

• Konecranes: Global overhead crane and hoist manufacturer with industrial service business; directly competes with BSI's SWF-branded crane/hoist product line and service offering.
• Mill Con Steel Industries (TMT): Thai rebar and steel bar manufacturer directly competing with BSI's long steel / round steel product line for the Thai construction market. Same domestic channel structure.
• NS BlueScope (Thailand): Leading manufacturer of coated and pre-painted steel roofing and building products in Thailand, directly competing with BSI's COLORPRIME and Scanroof flat steel lines.
• Demag (Terex): Industrial crane and hoist manufacturer under Terex, competing with BSI in overhead cranes, rope hoists, and explosion-proof lifting equipment in Thailand and the region.
• Sahaviriya Steel Industries: One of Thailand's largest hot-rolled steel producers and a direct competitor to BSI in long and flat steel serving Thai construction and industrial markets. Comparable product overlap and Thai geographic focus.
• G Steel Public Company: Thai-listed steel manufacturer producing hot-rolled and coated steel, comparable to BSI's flat steel portfolio and Thai industrial customer base.
• Tata Steel (Thailand): Thai subsidiary of Tata Steel producing rebar and wire rod, competing head-to-head with BSI's long steel products in the Thai construction supply chain.

Others

• SWF Krantechnik: German origin of the SWF hoist/crane brand that BSI distributes and manufactures under partnership. Technology licensor and upstream peer in the same product family.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/bangkoksteelindustry
• LinkedInlinkedin.com/company/bangkok-steel-trading

Compliance1 record

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 →

Frequently asked questions about Bangkok Steel Industry Public Company