Steel Structure Solutions, From Design to Construction
Steel Structure Solutions, From Design to Construction
Who We Are
Your Partner in Steel Structures and Global Construction
An integrated group connecting steel design, production and construction.
BYD · CNBM · CATIC · Butler · CNNC · Sun Paper
Why Choose SWS
Manufacturing Strength. International Project Experience.
ISO 9001, ISO 14001 and ISO 45001 certifications support quality, environmental and occupational health and safety management.
Research, design, steel fabrication and construction come together within one group.
Four light-steel lines and one heavy-steel line support a broad range of structural components.
Companies in Thailand, Indonesia, Morocco and Tanzania bring local coordination to overseas projects.
Manufacturing & Engineering
From Factory Production to Project Delivery
Our Zoucheng manufacturing base combines 50,000 m² of production space with five steel production lines. Alongside steel components, we manufacture metal building envelope materials and support construction projects through our overseas network.
Steel components for industrial plants, offices, stadiums and logistics facilities.
Grade II qualifications in general building construction and specialized steel structure contracting.
Products & Services
Steel Products and Building Solutions for Your Project
Steel Structures
Floor Decking
Metal Building Envelopes
Steel Fabrication
General Contracting
Overseas Project Services
Common Questions
Steel Products and Project Services: FAQs
We supply steel structural components, floor decking and metal building envelope materials, alongside general contracting and overseas engineering services.
Our work covers industrial plants, office buildings, stadiums and logistics centers.
Our China manufacturing base is in Beisu Economic Development Zone, Zoucheng, Shandong Province.
The manufacturing base has 50,000 m² of production space, four light-steel lines and one heavy-steel line, with annual steel component output exceeding 60,000 tonnes.
Our product range includes truss columns, truss beams, cruciform steel columns, lattice columns, box columns and special-shaped box columns.
Yes. Our building product range includes steel truss floor decking systems.
Products include profiled metal sheets, sandwich panels, wall panels, purlins and other metal roofing and cladding materials.
Yes. The group is headquartered in Bangkok and has companies in Thailand, Indonesia, Morocco and Tanzania, supporting an international project network.
SWS holds ISO 9001, ISO 14001 and ISO 45001 certifications covering quality, environmental, and occupational health and safety management.
Yes. SWS holds Grade II general building construction and specialized steel structure contracting qualifications. Its Thailand company, Primapro Co., Ltd, also provides local construction and fit-out services.
Please describe your project location, building type and product requirements, and include available drawings so our team can understand the scope.
Email sdserve@126.com or call +86 537 2572555. Our China address is No. 1737 Beisu Avenue, Zoucheng, Jining, Shandong, China.
Chinese Manufacturing. International Reach.
Blog Post
Read Our Latest News
Stay up to date with our company news, steel structure projects, and manufacturing updates.

Saiweisi Group, setting a new benchmark for cultural tourism transportation!
Dayun Interchange: standardized column piers, bored piles & modular steel box girders, stable and evenly loaded.
Full-process incremental launching, standard workflow & strict QC.
A safe premium bridge combining transport and cultural tourism.

First Steel Lift for the PDGJC3 Data Center Project in Puping, Bekasi, Indonesia
The PDGJC3 Data Center project in Puping, Bekasi, Indonesia completed its first steel lift, officially starting structural steel installation.

SWS Group Attends the 38th Bangkok International Building Materials Exhibition
On May 1, 2026, SWS Group Thailand attended the 38th Bangkok International Building Materials Exhibition.

Foundation Works Completed for Letai Packaging Phase II
Foundation works for Letai Packaging Thailand Phase II were completed, allowing the project to proceed to the next construction stage.

Ecosource (Thailand) Project: Axis-10 Steel Columns and Wall Purlins Installed
Steel structure work on the ECOSOURCE ENVIRONMENTAL TECHNOLOGY (THAILAND) project is progressing steadily; the Axis-10 steel columns and wall purlins have been installed.

Letai Packaging Phase II Breaks Ground in Chonburi, Thailand
The Letai Packaging Thailand Phase II project held its groundbreaking ceremony in Chonburi, officially launching construction.
Testimonial
Customer Experiences That Inspire Confidence