Supporting Clean Energy Growth in Vietnam

Sunwen Industry Wuxi Co., Ltd. Supplies Structural Steel for O Mon 4 Combined Cycle Power Station

Introduction

Vietnam is on an ambitious path to expand its energy generation capacity while adopting cleaner, more efficient technologies. A key project supporting this transition is the O Mon 4 Combined Cycle Power Station, a high-efficiency gas-fired facility aimed at bolstering the Mekong Delta’s energy supply. In 2024, Sunwen Industry Wuxi Co., Ltd., a globally respected name in steel product manufacturing, contributed significantly to this project through the supply of high-quality structural steel components.

 Supplying DOOSAN ENERBILITY VIETNAM CO., LTD, Sunwen delivered over 400 tons of structural steel—ranging from angle iron and H-beams to flat and channel steel—designed to meet the specific engineering demands of a large-scale power project. This article outlines the technical details, project background, and the value-added services that set Sunwen apart in this major infrastructure development.

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Project Summary

• End User: DOOSAN ENERBILITY VIETNAM CO., LTD
• Project: O Mon 4 Combined Cycle Power Station
• Country: Vietnam
• Size Range:
  • Outer Diameter / Width: 0.5” to 24”
  • Thickness: 3mm to 12mm
• Quantity Supplied: 402 Metric Tons

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About the O Mon 4 Combined Cycle Power Station

Located in the Cần Thơ province of southern Vietnam, the O Mon 4 plant is part of a broader initiative to enhance Vietnam’s grid reliability and reduce dependence on coal. The facility integrates both gas and steam turbines to achieve higher efficiency, lower emissions, and greater output reliability.

DOOSAN ENERBILITY VIETNAM CO., LTD, the end user and primary EPC contractor, has a global track record in thermal and combined-cycle power plants. Their selection of suppliers is governed by strict quality and compliance criteria, particularly in projects involving high mechanical loads, thermal stress, and long service life.

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Sunwen Industry Wuxi Co., Ltd: Quality-Driven Steel Solutions

Sunwen Industry Wuxi Co., Ltd. is a leading manufacturer and exporter of piping systems, structural steel, and pressure-grade components. With over two decades of experience, Sunwen is recognized for its ability to meet international standards such as JIS, ASTM, EN, and API, offering tailored steel solutions to a diverse client base across energy, infrastructure, and industrial sectors.

For the O Mon 4 project, Sunwen’s ability to source, process, and deliver structural steel within tight tolerances and schedules played a pivotal role. The products not only complied with Japanese Industrial Standards (JIS SS400) but also met the aesthetic and mechanical performance required for turbine buildings, support structures, piping racks, and auxiliary platforms.

Project Challenges & Custom Solutions

1. Multi-Product Coordination

The order involved five different product types, each with a unique size range and application. Sunwen ensured:

• Centralized coordination for procurement and manufacturing
• Bundled shipments to reduce unloading complexity at the job site
• Clear tagging and traceability, minimizing errors during erection

2. Surface Protection

Due to Vietnam’s humid and coastal conditions, the end user requested surface priming on exposed sections. Sunwen provided steel with:

• Anti-corrosion primer coating as per ISO 12944 standards
• Option for custom color coding for field identification

3. Tight Lead Time

Despite high global demand for structural steel, Sunwen completed the order within the contractual lead time, ensuring zero disruption to the EPC construction schedule. Strategic stockholding and pre-planning were instrumental.

4. Custom Lengths and Drilled Components

Where required, Sunwen offered:

• Cut-to-length services per fabrication drawings
• Pre-drilled holes in angle and channel steel, saving client site labor

Results and Impact

With over 400 tons of structural steel supplied successfully, Sunwen’s contribution to the O Mon 4 project helped ensure:

• Structural integrity of turbine foundations, platforms, and access systems
• Faster installation, reducing construction downtime
• Longevity of structures due to quality materials and protective coatings

This delivery also contributed to the broader goals of Vietnam’s energy policy by supporting a cleaner, gas-based power plant with greater output efficiency.

Visual Highlight

Conclusion

The successful execution of contract SW-G01A-2409025 demonstrates Sunwen Industry Wuxi Co., Ltd.’s capability to deliver complex, multi-material steel solutions for critical infrastructure projects. As Vietnam and other Southeast Asian countries move toward cleaner and more efficient energy systems, Sunwen is proud to contribute with high-quality products and unmatched service reliability.

Backed by expertise in international specifications, robust quality systems, and a commitment to customer satisfaction, Sunwen continues to expand its role as a trusted supplier in the global structural steel and piping market.