2025

• Vendor registration completed with the Saudi Electricity Company (SEC).

2024

• Selected as KOEN World Class-30 (KWC-30) by Korea South-East Power (KOEN).

• Korea Southern Power (KOSPO) – Commitment to Supporting the Glocal Power Business Partnership Agreement.

2022

• Successful completion of the national project for gas turbine high-temperature component reconditioning and maintenance, and establishment of the equipment line.

2020

• Selected as KOEN Local Champion-50 (KLC-50) by Korea South-East Power (KOEN).

2018

• Started exporting Blade & Vane to overseas markets.

• Achieved the 5 Million Dollar Export Achievement.

• Commenced the national project for gas turbine high-temperature component reconditioning and maintenance, and the establishment of the equipment line.

2017

• Awarded the Excellent Presidential Award for Shared Growth.

• First overseas export of gas turbine high-temperature components (13E2 EV Burner, Middle East).

2016

• Successful field test of the 11NM Blade & Vane full set.

• Signed an MOU for gas turbine high-temperature component repair and maintenance services (Seongil - Korea District Heating Corporation - MHPS).

• Issued the Excellent Product Performance Certification for Small and Medium Enterprises (SMEs).

2015

• Held a technical exchange meeting for gas turbine high-temperature components.

• Signed a joint development agreement for high-temperature components with a private power plant (POSCO).

• Korea Southern Power (KOSPO) – Committed to supporting the Glocal Power business partnership agreement.

2014

• Korea Southern Power Co., Ltd. - Best of Best Supplier Certification

• Korea South-East Power Co., Ltd. - Core Enterprise Certification

2013

• Initiated the development of the Korean-style large gas turbine 250MW project.

• Successfully developed the domestication of the 11NM Low-NOx Burner.

• Issued AS9100 certification.

2012

• Established SUNG-IL Turbine Co., Ltd. (corporate separation) → "Specialized company in gas turbine high-temperature components."

• Issued ISO 9001 certification.

• Certified as a cooperative enterprise by Korea Midland Power Co., Ltd.

• Registered as a maintenance-qualified company with five domestic power generation companies.

2011

• Initiated the domestication development of the 11NM Blade & Vane.

2009

• Initiated the domestication development of the 11NM Low-NOx Burner.

2006

• Initiated the development of "F Class" gas turbine combustion chamber high-temperature components.

• Received the Presidential Citation – Small and Medium Enterprise Shared Growth Cooperation Award (Beautiful Journey Award).

2004

• Completed the domestication development of 11NM gas turbine high-temperature components (HGC, Liner, SDC).

2000

• Established a specialized technology research institute for gas turbine high-temperature components.

1999

• Commercialized the domestication of gas turbine high-temperature components in Korea (11NM Support Cylinder).

1997

• First Domestic Development of Gas Turbine High-Temperature Components in Korea (11NM Support Cylinder).

1978

• Founded Seongil Machinery Industry.