- Jan. 31st in 1993 Established in the name of Sohntech Co.
- Feb. 27th in 1996 Changed company name to Sohntech Co. Ltd.
- Mar. 19th in 2007 Changed company name to Sohntech Co.
- Jul. 7th in 2015 Established Sohntech Vietnam Co., Ltd in Vietnam
| Year | Month | Day | Description |
|---|---|---|---|
| 1983 | 9 | 10 | Design and construction of piping in field and LPG + AIR system, spherial gas tank. city gas plant for Haeyang city gas co. in Kwang-ju city. |
| 1985 | 7 | 7 | Design and construction of piping in field and LPG + AIR system city gas plant for Mokpo Haeyang city gas. |
| 1986 | 8 | 19 | Design and construction of piping in field and LPG + AIR system city gas plant for Jeon-nam city gas co. in Sooncheon city. |
| 1986 | 10 | 20 | Design and construction of piping in field and LPG + AIR system city gas plant for Jeon-nam city gas co. Kwang-yang city. |
| 1998 | 6 | 15 | Design, materials supply and supervisor of LPG(150ton). Ammonia. Liquid nitrogen storage and supply system in Jangiagang city, China for POSCO steel company. |
| 2000 | 7 | 2 | Design and construction of piping in field and LPG + AIR system (Storage tank 500 ton) City gas plant for Jeon-nam city gas co. in Yulchon Area. |
| 2000 | 12 | 6 | Design and Equipment, materials supply and supervisor of LPG+ AIR mixing plant for Dong-Bu steel company. |
| 2002 | 12 | 22 | Design, materials supply and construction of LPG storage & supply system in phuyng-du, China for Sam-Hwa electronic co. |
| 2003 | 3 | 12 | Design, materials supply and supervisor of storage and supply system ammonia, Liquid nitrogen for POSCO E&C in Vietnam. |
| 2003 | 2 | Design, materials supply and construct of main LNG governor system Jeon-nam city gas co., Soon-chun Area. |
|
| 2008 | 7 | 30 | Design, materials supply and supervisor of LPG(150ton). Liquid Argon (10ton). Liquid CO2, (60ton) Liquid Oxigen storage(40ton) and supply system in Dung Quat, Vietnam for Doosan Vina company. |
| 2009 | 10 | 19 | Design and construction of piping in field and LPG + AIR system (Storage tank 150 ton) for POSCO Vietnam in phumy IDZ, Vietnam |
| 2010 | 1 | 30 | Design, materials supply and construct of L.P.G storage(50 ton) & supply system for Posco VST in Nhon Trach IDZ Vietnam |
| 2010 | 3 | 30 | Design, materials supply and supervisor of Liquid Argon (10ton). supply system in Dung Quat, Vietnam for Doosan Vina company. ( extention the capacity) |
| 2010 | 10 | 30 | Design, materials supply and construct of L.P.G storage(50 tonx 2 set) & supply system (500kg vaporizer 2 set) for Hyo Sung steel code Vietnam co,.ltd in Nhon Trach IDZ Vietnam |
| 2011 | 9 | 30 | Design and construction of piping in field and LPG + AIR system (Mixer 2,000 CM/Hr , Storage tank 20ton x 2 set), steam vaporizer 2 ton/hr 1 set, HMI controle panel and all system for LLG VINA My Xuan IDZ, Vietnam |
| 2011 | 10 | 31 | Design, materials supply and construct of L.P.G storage(50 ton X 2 SET , 800 KG/HR X4 SET Vaporzer) & supply system for Posco E&C Vietnam in Nhon Trach IDZ Vietnam ( posco VST extention factory project) |
| 2012 | 3 | 31 | Design, materials supply and construct of L.P.G backup system for extention factory for Posco VST in Nhon Trach IDZ Vietnam. LPG +AIR Mixing system with HMI control panel and air compressor unit ( 2,500 CM/Hr . Auto change over system) |
| 2005-2012 | Design, materials supply and supervisor of Vietnam Area. _ Corporation company . |
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| 2013 | 3 | 5 | Design, materials supply, construct and training of L.P.G backup system for Posco SS- VINA |
| 2014 | 6 | 1 | Design, materials supply, construct and training of L.P.G backup system for LGE Project Hai Phong, Vietnam. |
| 2015 | 4 | 10 | Materials supply and supervisor of L.P.G storage package (2.9 tonx 2 set) & supply system (150kg vaporizer x 2 set) for Vijagas( Valqua Co,.ltd project in Tan Truong IDZ, Hai Duong Provide, Vietnam) |
| 2015 | 7 | 25 | Design, materials supply and supervisor of L.P.G cylinder storage(7 cylinder X 2 SET , 20 KG/HR X 1 SET Vaporizer) & supply Oxygen system( 7 cylinder x 4 set) for Gail E&C Vietnam in Nhon Trach IDZ Vietnam ( Hyo sung Moto factory project) |
| 2016 | 3 | Design, materials supply and supervisor of L.P.G piping& regulator system for HYUNDAI WELDING in Nhon Trach, Dong Nai |
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| 2016 | 10 | Design, materials supply and construct of L.P.G storage(50 ton X 2 SET , 800 KG/HR X2 SET Vaporzer) & supply system for LD DISPLAY HAI PHONG in Trang Due IDZ Vietnam ( LG DISPLAY VIETNAM HAI PHONG Project) |
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| 2017 | 3 | Design, materials supply and construct of L.P.G storage(50 ton X 2 SET , 1500 KG/HR X1 SET Vaporzer) & supply system for HWASEUNG in Nhon Trach IDZ Vietnam ( HSPOLYTECH Project) |
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| Year | Month | Day | Description |
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