1998:
Established GreatStar Conditioning Engineering Co., Ltd. Capital: 5 million

2000:
Joined the Taiwan Refrigerating and Air-Conditioning Engineering Association of Republic of China Class C

2004:
Import VRF System installation Skill

2005:
Upgraded to a first -class license The Class B contracting industry of refrigeration and air-conditioning projects
Import heat pump hot water energy-saving system technology projects.、

2006:
Capital increase to 10 million.    
Established GreatStar Energy Technology (Co., Ltd.) Capital: 5 million .

2008:
Upgraded Licensed refrigeration and air-conditioning engineering Grade A contracting industry

2009:
IPO Stock commissioned by Changhua Bank
Passed ISO9001


2011:
Organizational reform and establishment of GreatStarAir-conditioning Engineering Co., New Patented heat pump combined air-conditioning system

2012:
New Patented: compound heat pump air-conditioning device
Established Cambodia Tianqiao Real Estate Co., Ltd. an overseas business
All dep. established SOP standard operating procedures


2013:
Accounting audit for semi annual

2014:
Import 3D BIM drawing
Established social charity: Sunshine Charity Association

2015:
Patent :composite solar heat pump air conditioning energy saving device 

2017:
Capital increase .Capital: 20 million 

2019:
Patent : Air inlet water retaining structure
Patent : Ventilation pipe filter device

2020:
Invention patent: method and system for improving indoor air quality

2022:
Award US Green Building LEED GA certification class- Gold level 
Invention patent :  applied to negative pressure air conditioning system in public spaces
Capital increase . Capital amount: 30 million

2023:
Invention patent : 

Two-way energy reuse system and two-way energy control method