| 1989-08 |
The company was established. |
| 1991-08 |
Delivered first 2 units of 115 kV, 40 MVA to Provincial Electricity Authority (PEA), Thailand |
| 1997-12 |
Passed short circuit test of 115 kV, 50 MVA at KEMA high-power laboratory, Netherlands Transformer was delivered to Electricity Generating Authority of Thailand (EGAT) |
| 2002-06 |
Awarded ISO 9001 : 2000 certificate |
| 2003-09 |
Delivered 2 units of 50/80 MVA 132/33 kV to Sarawak Electricity Supply Corporation, Malaysia |
| 2004-05 |
Delivered 5 units of 100 MVA 15.75/11.5-11.5 kV to Umm At Nar IWPP, Arabian Power Company, U.A.E. |
| 2006-03 |
Delivered 3 units of 120MVA 26/11.5-11.5kV to Tanjung Bin Power Sdn. Bhd., Malaysia |
| 2007-02 |
Delivered 2 units of 100MVA 115/33kV to Thai Oil Public Company Limited, Thailand |
| 2007-09 |
Type test of 90MVA 132kV transformer for Tenaga Nasional Berhad (TNB), Malaysia was performed under witness of independent laboralory, CESI, Italy. |
| 2007-10 |
Delivered 2 units of 120MVA 26/11.5-11.5kV to Jimah Energy Ventures Sdn, Bhd., Malaysia |
| 2008-02 |
Delivered 1 unit of 50MVA 230kV transformer to Padaeng Industry Public Company Limited, Thailand |
| 2008-03 |
Delivered 2 units of 75/100MVA 69kV Transformers to Saudi Aramco, Saudi Arabia |
| 2008-11 |
Awarded ISO 14001 certificate |
| 2009-05 |
Delivered 3 units of 100MVA 150kV generating transformer to Indonesia |
| 2012-06 |
Completed new factory for manufacturing large power transformer (up to 300kV 500MVA) |
