About QTC

QTC Energy Public Company Limited was established in July, 1996 by a group of professional engineers backed by long experience in this field for more than 30 years. Our mission was to create a transformer manufacturer offering products that were second to none, and to ensure clients of greater benefit and added value. QTC stands alone as Thailand’s leader in the local manufacturing of transformers, using the latest technology and machines and other modernized facilities. Transformers manufactured by QTC are superior in quality, reliability, and advanced technology. The company is operated and accredited from various independent international standard organizations such as ISO 9001, ISO 14001 OHSAS 18001 and ISO/IEC 17025. QTC has initiated and devoted themselves to consistent and ongoing research and development to ensure the most advanced and superior quality products. QTC Transformers have passed stringent Short Circuit Withstand Tests conducted by CESI Italy and KEMA Netherland. This is why we call the company QTC – Quality Transformer Company.


Based on our years of engineering experience, our manufacturing facilities have been designed to produce only products of highest quality. Each manufacturing process is closely monitored to reach international safety and operational standards. Experienced and well-trained manufacturing staff works cooperatively with our sales & service teams to guarantee fast and punctual delivery of every order.


Office Address :
2/2 soi Krungthep Kritha 8(5)
krungthep Kritha Rd, Huamark,
Bangkapi, Bangkok 10240
Sale Contact: (66) 92-656-1425 /
(66) 88-203-0241
Fax: (66) 2379-3097
Hotline: (66) 89-444-0844
Email: contact@qtc-energy.com


Factory Address :
149 M. , Tambol Mabyangporn
Ampur Pluakdaeng, Rayong
21140 Thailand
Tel: (66) 3889-1411-3
Fax: (66) 3889-1420, 3889-1595
Email: contact@qtc-energy.com