Rayong Wire Industries

What Rayong Wire Industries does

Rayong Wire Industries Public Company Limited (RWI) is a Thai SET-listed manufacturer and distributor of high-tensile steel wire products serving the domestic construction and infrastructure sector. The company operates a single integrated production facility at Map Ta Phut Industrial Estate in Rayong Province, supported by a Bangkok headquarters on Rama 3 Road, with combined annual production capacity of 61,200 tons across five product lines: PC-Wire (Pre-stressed Concrete Wire, certified to มอก.95-2540) in diameters of 4-9mm, PC-Strand (7-wire twisted strand, certified to มอก.420-2540) in diameters of 9.3-15.2mm, Wire Mesh, Hard Drawn Wire, and Ordinary Low Carbon Steel Wire (OLC). Manufacturing relies on conventional cold drawing, stranding, and welding processes.

The company sells primarily through direct enterprise engagement with construction companies and infrastructure developers, with factory audits as a core element of the sales cycle for major project qualification. Documented customers include MEGASTEEL LTD. (UK), Unique Engineering & Construction Plc. (linked to the MRTA Orange Line project), Okaya Thailand (Japanese affiliate), and Anordica. End applications span bridges, expressways, elevated roads, large-diameter piles, building floor slabs, electric poles, railway sleepers, and silos. Corporate marketing is lean, centered on the company website, MAI/SET investor disclosures, and MAI FORUM participation, with the stated 2025 vision of becoming one of the top three producers and distributors of high-tensile steel wire products in Thailand.

The revenue model is hardware sales of steel wire products to enterprise customers. As of July 18, 2023, RWI reported total revenue of THB 431.96 million with a net loss of THB -26.56 million (-6.15% margin) and EPS of -THB 0.03, indicating the most recent disclosed operating period was loss-making. The company has pursued governance credentials (CAC certification in 2019 and 2025; ISO 9001/14001) and, per the current website navigation, has expanded scope to include a secured-lending business and a real estate development business alongside the core wire manufacturing franchise.

Name

Rayong Wire Industries

Legal name

Rayong Wire Industries Public Company Limited (บริษัท ระยองไวร์ อินดัสตรีส์ จำกัด (มหาชน))

Website

https://rwi.co.th

Company type

Public

Founded year

1994

Operating status

Operating

Headcount range

101–250 employees

Short description

Rayong Wire Industries (SET: RWI) is a Thai manufacturer and distributor of high-tensile steel wire products, supplying PC-Wire, PC-Strand, Wire Mesh, Hard Drawn Wire, and OLC to construction and infrastructure customers from its 61,200-ton-capacity Map Ta Phut facility.

Ownership category

akta.pro rank

Headquarters

HQ city

Bangkok

HQ country

Thailand

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Steel Wire Products Manufacturing and Distribution: Manufacturing and distribution of high tensile steel wire products including PC-Wire, PC-Strand, Wire Mesh, Hard Drawn Wire, and Ordinary Low Carbon Steel Wire. The company generates revenue through direct sales of manufactured steel wire products to construction and infrastructure companies.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Rayong Wire Industries Public Company Limited manufactures and distributes high-tensile steel wire products for pre-stressed concrete construction. Its product portfolio includes PC-Wire, PC-Strand, Wire Mesh, Hard Drawn Wire, and Ordinary Low Carbon Steel Wire (OLC), produced through cold drawing, stranding, and welding processes at the Map Ta Phut Industrial Estate factory. The combined production capacity is 61,200 tons per year, supplying bridges, elevated roads, expressways, piles, electric poles, railway sleepers, and large building construction.

Product overview

Rayong Wire Industries Public Company Limited (RWI) operates as a steel wire manufacturer and distributor with a total production capacity of 61,200 tons per year. The company's product portfolio comprises five core steel wire products: PC-Wire (pre-stressed concrete wire for reinforcing construction elements like piles and poles), PC-Strand (twisted multi-wire strands for large-scale infrastructure projects such as bridges and highways), Wire Mesh (welded steel reinforcement mesh), Hard Drawn Wire (spring wire), and OLC (ordinary low carbon steel wire). All products carry Thai industrial standards certification (มอก.).

Differentiator

Problem solved

Functional benefit

Products and services

• PC-Wire (Steel Wires for Pre-stressed Concrete Wire) Single indented pre-stressed concrete wire with diameters of 4, 5, 7, and 9 millimeters, certified under มอก.95-2540. Used to reinforce piles, electricity poles, prefabricated floor slabs, and concrete sleepers for railway tracks. Sold to construction and infrastructure companies.
• PC-Strand (Steel Wires Strand for Pre-stressed Concrete) Multi-wire strand made from 7 reduced (non-indented) wires twisted together, with diameters of 9.3, 9.5, 12.4, 12.7, and 15.2 millimeters, certified under มอก.420-2540. Used for bridges, bridge beams, elevated roads, expressways, large-diameter piles, large building floors, and silos.
• Wire Mesh (Welded Steel Mesh for Concrete Reinforcement) Welded steel mesh product used to reinforce concrete structures. Supplied to construction companies for general concrete reinforcement applications.
• Hard Drawn Wire (Spring Wire) Hard drawn steel wire (spring wire) for spring manufacturing applications and general industrial uses.
• OLC (Ordinary Low Carbon Steel Wire) Ordinary low carbon steel wire (cold drawn) for general industrial applications requiring low carbon steel.

Quantifiable outcome

• Total production capacity of 61,200 tons per year

Named customers4 records

Segments2 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered core.

• Unique Engineering & Construction Plc.coreTechnology or Integration · 25 May 2018Thai construction company brought a team from MRTA (PMCSC) of the Orange Line electric train project to audit RWI factory on May 25-26, 2018. This partnership connects RWI to major infrastructure projects including Bangkok's mass transit system.
• MEGASTEEL LTD.coreChannel Partner/ Reseller/ Distributor · 26 September 2017UK-based steel wire distributor. RWI agreed to become manufacturer and distributor of steel wire products to MEGASTEEL LTD. Agreement reached to start product sales with first shipment scheduled for October 2017. Mr. Nigel from MEGASTEEL visited RWI factory in September 2017 and returned in October 2017 to inspect and observe loading of first batch of goods (PC-Strand 9.3mm).

Scale indicators6 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Voestalpine: Austrian steel-based technology group with a dedicated wire technology division producing high-quality steel wire for construction, automotive and industrial uses. Overlaps on PC-wire/strand and engineered steel wire categories.
• KOBE Steel (Kobelco): Major Japanese steelmaker with significant wire rod and high-tensile steel wire offerings for construction and infrastructure. Comparable on steel wire products and serving large infrastructure projects, though within a much broader steel/materials portfolio.
• POSCO: Korean steel giant producing wire rod and downstream wire products used in pre-stressed concrete applications. Comparable in product category and Asian infrastructure end-markets, but operates as a fully integrated global steel major.
• Tata Steel: Vertically integrated Indian steel major producing wire rod and downstream wire products including PC-wire/strand for bridges, metros and buildings. Comparable products and infrastructure end-uses, with much broader geographic and product scope.
• JSW Steel: Indian integrated steel producer with wire rod capacity feeding downstream high-tensile wire applications including pre-stressed concrete. Comparable on steel wire end-uses for infrastructure, though with much larger scale and integrated operations.

Direct peers

• Insteel Industries: U.S. manufacturer of steel wire reinforcing products including welded wire mesh and PC-strand for concrete construction. Highly comparable product mix and end-market exposure to non-residential/infrastructure construction.
• Bekaert: Global leader in steel wire drawing and transformation, with major product lines in PC-wire/PC-strand, wire mesh and industrial wire for construction. Directly comparable product portfolio and serves similar pre-stressed concrete and infrastructure end-markets worldwide.
• Nakayama Steel Products: Japanese specialty steel wire producer serving construction and industrial markets with PC-wire, hard drawn wire and mesh products. Direct competitor in the same steel wire sub-category with similar customer profiles.

Regional players

• Sahaviriya Steel Industries (SSI): Major Thai hot-rolled steel sheet producer that supplies feedstock into the domestic steel wire value chain. Comparable as a Thai steel incumbent serving the same construction end-market, though upstream-focused.
• Consolidated Metal Industries (CMI): Southeast Asian steel wire and mesh manufacturer with product lines overlapping RWI's PC-wire/strand and welded mesh offerings for construction. Comparable regionally as a smaller-scale wire specialist in adjacent ASEAN markets.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/rwi-limited

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Rayong Wire Industries