|The company was formally established.
|Obtained a high-tech enterprise.
|Passed the ISO9001/2000 certification system.
|Launched the fresh air series of energy-saving products.
|The company passed the three-standard integrated certification and established the Ministry of Foreign Trade.
|Layout the field of smart meters for the Internet of Things
Obtained CMC Metrology License.
|Obtained CMC Metrology License.
|Established Contract Energy Management Department
|Obtained Level 3 Qualification for Mechanical and Electrical Installation.
|Obtained Class D qualification for refrigeration and air-conditioning maintenance.
|Start the construction of a new production base.
|The new cabinet air conditioner production base was put into use
|Become state-owned enterprise
|Annual sales exceed 100 million RMB