Transformer Manufacturing
We design and manufacture single phase and three-phase power transformers with voltage ratings up to 40.5 kV and capacities up to 16,000 kVA, ensuring stable performance and long-term reliability.
Electrical Cabinets & Substation Systems
SOTEK specializes in producing electrical enclosures, transformer substations, including pole-mounted substations, and supplying equipment and materials for power generation and distribution systems.
Logistics & Installation Services
We offer complete solutions for transporting, installing, repairing, testing, and adjusting transformers and electrical equipment – ensuring safety and precision at every step.
Distribution & Technology Transfer
Beyond manufacturing, we support clients through technology transfer and onsite commissioning, helping your teams confidently operate and maintain our electrical solutions.
Maintenance Solutions
Our preventive and corrective maintenance services help extend equipment lifespan, minimize downtime, and keep your systems running at peak efficiency.
Customized Power Solutions
Every project is unique. We deliver tailored, efficient, and long-lasting solutions that match your exact needs—designed for both reliability and future scalability.
Services In Progress
We stand with you before, during, and after delivery.
SOTEK provides more than transformers — we deliver expertise, training, and responsive service to ensure long-term value and operational excellence.
Why choose SOTEK Transformers
- Proven reliability in demanding environments
- Energy-efficient and environmentally sustainable designs
- Flexible manufacturing capabilities for tailored solutions
- Fast production timelines and competitive pricing
- Comprehensive after-sales service and technical support
Best selling products
Designed to meet international standards, our top products ensure stable operation, energy efficiency, and long-term safety.
Contact Support
Need support or a quotation? Whether you are planning a project, need technical advice, or want a quotation for our transformers — we are here to assist. 📞 Contact us anytime at +84 903219753 or send us your inquiry online. Our experts are ready to help.
Our values
Quality First – Innovation Driven – Customer Commitment – Sustainability Focus
Vision
Become a globally trusted brand in distribution transformers, renowned for quality, reliability, and outstanding service.
Mission
We are committed to delivering world-class transformer solutions that enable industrial excellence, infrastructure resilience, and long-term global sustainability.
Technology
With state-of-the-art equipment and premium inputs sourced from G7 nations, SOTEK delivers transformer solutions that combine global precision with long-term reliability.
Quality
SOTEK operates under an ISO 9001:2015 certified quality management system, ensuring strict compliance with international standards such as IEC 60076, ANSI, and TCVN 6306.
15+
Years of Development
500+
Employees
10000+
Customers
Customers and Partners
