In March 2016, the company won the R&D laboratory order from Hunan Changgao Sirui Automation Co., Ltd., a subsidiary of the professional Hunan large listed company Changgao Group, through bidding.
Hunan Changgao High Voltage Switchgear Group Co., Ltd., abbreviated as "Changgao Group", stock code 002452; We are a private high-tech enterprise specializing in the production of various high-voltage and ultra high voltage switchgear equipment required for large-scale power plants and transmission and transformation construction.
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In July 2025, TOPS received a repurchase order from Huzhou Xinjianghao Electronics Co., Ltd
In June 2025, TOPS entered the supply chain system of "Xinwei Communication Co., Ltd."
In June 2025, the TOPS environmental testing box passed the acceptance inspection of the Institute of Microelectronics Technology, Chinese Academy of Sciences
Mechanical environmental testing
