Corrosive coastal and chemical sites
Blast cleaning to Sa 2.5 and ISO 12944 C4–C5 systems, or hot-dip galvanising, with DFT records for every batch.

Industries · Petrochemical & energy
Pipe racks, process shelters, chemical warehouses, power-plant buildings and solar structures. Heavy-duty coatings for coastal and chemical sites, fire protection where needed, and documents your EPC contractor expects, shipped CIF to Map Ta Phut or Laem Chabang.
Thai petrochemicals and energy

Thailand's petrochemical and chemical industry is concentrated around Map Ta Phut in Rayong, with refineries, crackers, polymer and specialty chemical plants. At the same time the country is adding gas-fired power, biomass and solar capacity, and new energy storage.
These owners specify coating systems for C4–C5 environments, fire protection for hydrocarbon zones and full material traceability. They work through EPC contractors with tight shutdown and commissioning windows. Steel is the natural material, as long as the fabricator delivers the documents and the quality these projects require.
Your challenges, our answers
Blast cleaning to Sa 2.5 and ISO 12944 C4–C5 systems, or hot-dip galvanising, with DFT records for every batch.
Intumescent paint applied in the factory or on site where the owner specifies a fire rating.
Project specifications reviewed at the start; third-party inspection welcome at our factory.
Fabrication reserved at order and shipped by area, so erection fits the shutdown plan.
Mill certificates, heat numbers and inspection records traceable to each marked piece.
Pipe racks, platforms, stairs, shelters and buildings supplied in one package.
What we build
Multi-level racks, access platforms, stairs and ladders fabricated to EPC drawings.
Compressor, pump and analyser shelters with fire protection where required.
Bagged-product and drum stores with fire separation and ventilation.
Turbine halls, boiler buildings, control rooms and workshops.
Solar carports, rooftop-ready buildings and battery storage enclosures.
Crane-served workshops and spare-parts stores inside the plant.
Inside the structure
Typical design choices. Every project is engineered to its own brief, site and standards.
| Design item | Typical approach |
|---|---|
| Pipe racks | Multi-level racks for pipe, cable tray and equipment loads per EPC data |
| Coating | ISO 12944 C4–C5 systems or hot-dip galvanising |
| Fire protection | Intumescent systems to the rating specified by the owner |
| Connections | Bolted site connections to speed erection inside a running plant |
| Wind and seismic | DPT 1311-50 and DPT 1301/1302-61 for the site |
| Documentation | ITP, mill certificates, weld and DFT records per piece |
| Buildings | Warehouses and workshops with crane bays where needed |
EPC and owner specifications applied alongside Thai codes and our standard practice.
DFT and adhesion records from our paint shop for every batch.
Bolted connections and area-by-area shipping to suit permits to work.
Racks, platforms, shelters and buildings from one fabricator.
Thai codes and standards
Construction permit from the local authority, or from IEAT inside an industrial estate. We prepare drawings and calculations for the submission.
Thai wind and seismic standards, checked for the province of your site.
Your licensed Thai engineer (กว.) reviews and signs; we answer every comment.
Corrosion protection by paint systems for C4–C5 environments.
Industrial licence and environmental conditions for the plant; we supply structural data for your submissions.
Design and welding practice used for industrial steel.
Proven projects
Thai projects first, followed by references from our international portfolio with the same type of structure.

Warehouse
6
Port facility
3
Energy & process plant
12
Factory
12
Energy & process plant
3Projects outside Thailand are shown as references with the same type of structure.
Where the industry builds
Estates tagged for this industry in our directory of Thai industrial estates.
Why World Steel
Factories, warehouses and commercial buildings delivered across Thailand.
2,500 T of fabrication capacity a month, ISO 9001 quality and ISO 3834-2 welding, inspected before shipment.
Approval drawings your Thai engineer can sign, with wind and seismic loads for your province.
Shipped to Laem Chabang, Bangkok, Map Ta Phut or Songkhla, with documents for your customs broker.
Explore by keyword
FAQ
Yes. We fabricate to your IFC drawings or produce shop drawings from your design, with marks and packing by area.
For coastal and chemical exposure we use ISO 12944 C4–C5 systems or hot-dip galvanising, as specified, with DFT records.
Yes. Intumescent paint can be applied in our factory or specified for site application, to the rating the owner requires.
Yes. Third-party and owner inspection is welcome at our factory, or remotely through our audit online service.
Other industries
Send your site, size and requirements. We reply within one working day with a structural concept and budget.