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Truong Thinh Corp - Steel Structure Manufacturer

Building Trust Through Certified Quality

- Truong Thinh Corp
Quality Management Certification (ISO 9001)

In today’s competitive B2B environment, businesses face a common challenge: finding reliable partners who can consistently deliver high-quality products that meet strict international standards. Poor quality or non-compliant materials can delay projects, inflate costs, and damage reputations. At Truong Thinh Corp, we understand these challenges and provide solutions through certified production processes, advanced technology, and a strong commitment to excellence.

1. Quality Management Certification (ISO 9001)

ISO 9001 is the world’s most recognized quality management standard. It sets out requirements for a systematic approach to ensuring consistent product quality, efficiency, and customer satisfaction.

Quality Management Certification (ISO 9001)
Quality Management Certification (ISO 9001)

For B2B clients, this means that Truong Thinh Corp operates under internationally verified processes, reducing risk, improving reliability, and ensuring that every project meets the agreed-upon specifications.

2. European Standard Certification (VCA)

VCA is a European certification that focuses on safety, health, and environmental management within industrial projects. It ensures that companies follow rigorous procedures to protect employees and minimize risks.

For clients, working with a VCA-certified partner like Truong Thinh Corp means assurance that every project will be carried out safely, sustainably, and in compliance with European-level standards.

3. International Labor Safety Certification (IFA)

The IFA certification highlights strict compliance with international occupational safety standards. It ensures that companies maintain safe working environments, reducing accidents and enhancing worker productivity.

For B2B clients, this guarantees that Truong Thinh Corp executes projects with the highest safety protocols, minimizing disruptions and ensuring smooth project delivery.

4. Industry-Specific Product Certification (SA-3F)

The SA-3F certification is a professional welding certification that specifically assesses the welder’s ability to perform vertical fillet welds (3F position) according to Japanese industrial standards.

Industry-Specific Product Certification (SA-3F)
Industry-Specific Product Certification (SA-3F)

For business-to-business (B2B) customers, the SA-3F is not simply a compliance mark, but also a guarantee that the structural steel components supplied by Truong Thinh Corp have been fabricated and assembled by welders with proven proficiency in one of the most technically challenging welding positions. This means higher reliability in load-bearing structures, better resilience in harsh environments, and full compliance with international safety and quality regulations.

By applying SA-3F certified welding techniques, Truong Thinh ensures that every joint in its steel structures contributes to long-term stability, operational safety and extended lifecycle value for projects ranging from industrial plants to infrastructure and high-rise buildings.

5. Tekla Structures Certification

Truong Thinh Corp is proud to hold the Tekla Structures Skills Certification, in addition to our international certifications for quality and safety. This certification demonstrates our technical team’s proficiency in using this specialized 3D design software.

TEKLA Structures Certification
Tekla Structures Certification
  • Create accurate 3D models: This helps visualize the project in the most intuitive and detailed way.
  • Ensure accuracy: By optimizing the design and production process, we can eliminate errors from drawings to construction sites.
  • Improve efficiency: This increases productivity and ensures projects are completed efficiently, bringing long-term value to customers.

The Tekla certification not only affirms Truong Thinh Corp’s technological capabilities but also our commitment to applying the most advanced tools to bring outstanding construction solutions.

6. Welding Quality Certification (EN ISO 3834-2:2021)

Truong Thinh Construction Investment and Trading Joint Stock Company is certified by Bureau Veritas Vietnam to EN ISO 3834-2:2021, which sets comprehensive quality requirements for fusion welding of metallic materials. The certified scope is the manufacture and installation of structural steel components and accessories for civil, industrial and infrastructure works, at the operative site in Quarter 4, Vinh Tan Ward, Ho Chi Minh City.

EN ISO 3834-2:2021 welding quality certificate issued by Bureau Veritas to Truong Thinh for structural steel manufacture and installation
EN ISO 3834-2:2021 certificate issued by Bureau Veritas Vietnam
  • Certificate No.: INY-CER/26/1220 Rev.00
  • Issued: 28 September 2026 (initial certification 17 September 2026)
  • Valid until: 16 September 2029, subject to annual re-evaluation by Bureau Veritas auditors
  • Welding processes (ISO 4063): 121 (submerged arc welding with one wire electrode) and 136 (tubular cored metal arc welding with active gas shield)
  • Parent material groups (ISO/TR 15608): 1.1 and 1.2
  • Verification: the certificate can be checked with Bureau Veritas Vietnam on +84 28 38 122 196
Annex to EN ISO 3834-2:2021 certificate INY-CER/26/1220 listing parent material groups 1.1 and 1.2, welding processes 136 and 121 and the welding coordinators
Annex to the certificate: welding processes, parent material groups and welding coordinators

Annex to the certificate

The annex is an integral part of certificate INY-CER/26/1220 Rev.00. It lists what the welding quality system covers and who coordinates the welding:

  • Parent material groups (ISO/TR 15608): 1.1 and 1.2
  • Welding processes (ISO 4063): 136 and 121
  • Welding coordinators: three named coordinators, with competence levels S, S and B assessed against ISO 14731:2019

Note: the personal diploma number of one coordinator has been withheld on this web copy. The certificate shows the head office address recorded at the time of certification (No. 14 Duong Dinh Hoi, Phuoc Long Ward). Our current head office is 88-90 Huy Can, Phuoc Long Ward, Ho Chi Minh City. The operative site covered by the certificate, Quarter 4, Vinh Tan Ward, is unchanged.

For B2B clients, this means welding on Truong Thinh projects is managed under a documented quality system that covers welding coordination, procedures, personnel, equipment, inspection and the handling of non-conformities, and that is audited by an independent certification body every year.

7. Commitment to Quality & Control Process

At Truong Thinh Corp, quality assurance is embedded into every stage of production. From sourcing raw materials to fabrication, welding, surface treatment, and final assembly, each step undergoes strict quality control checks. Before products leave our factory, they are tested for structural strength, coating durability, and compliance with international standards. This closed-loop system helps ensure that clients receive steel products that meet the specified requirements, ready for immediate application in large-scale projects.

Commitment to Quality & Control Process
Commitment to Quality & Control Process

8. Landmark Projects

Certified steel from Truong Thinh Corp has been trusted in numerous high-profile projects. The Dak R’Tih Hydropower Plant in Dak Nong province showcases our ability to deliver heavy-duty steel structures for critical energy infrastructure. The Phnom Penh Trade Center in Cambodia demonstrates our capacity to meet international standards for complex commercial buildings. Additionally, our certified steel was supplied for the An Giang Seafood Processing Plant, a facility requiring both durability and compliance with strict food safety regulations.

Beyond these, Truong Thinh has contributed to the Dabaco Feed Factory in Binh Phuoc, the LDG Group Office Building in Thu Duc City (former city, now part of Ho Chi Minh City), and multiple Co.op Mart supermarkets across Dong Phu, Hong Ngu, Ha Tien, and Tra Vinh. We also delivered steel solutions for the Phu My Inland Waterway Port Warehouse (Ba Ria – Vung Tau) and industrial facilities such as the Royal House Hoang Gia Khang Factory in Dong Nai. Each project reflects Truong Thinh’s commitment to international standards, on-time delivery, and long-term structural integrity, reinforcing our reputation as a trusted partner for large-scale industrial and commercial developments across Vietnam and Southeast Asia

The Phnom Penh Trade Center
The Phnom Penh Trade Center
The Dak R’Tih Hydropower Plant
The Dak R’Tih Hydropower Plant

Operating since 2007, Truong Thinh Corp has become a trusted name in Vietnam’s construction and steel structure industry. By integrating internationally recognized certifications such as ISO 9001, VCA, IFA, and SA-3F into our operations, we provide B2B clients with more than just products—we deliver reliability, safety, and efficiency.

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Linh Phương - Author at Truong Thinh Corp
Linh Phương