According to Aiqi's investigation, Hunan Yun Jian Group Co., Ltd. is a national key scientific research and production enterprise directly under China Ordnance Equipment Group Corporation. Its predecessor was 1890 Hanyang Factory founded by Zhang Zhidong, Governor of Huguang in the late Qing Dynasty. It has a history of 130 years. Is one of the founders of modern weapons industry in China, known as "the cradle of Hunan's military industry", and once enjoyed a national reputation for producing Baiyun refrigerators. It is understood that Hunan Yun Jian Group Co., Ltd. is a state-owned enterprise.

Hunan Yun Jian Group Co., Ltd. is a subsidiary of China Ordnance Equipment Group Co., Ltd. The enterprise control center is located in Changsha, Hunan, with manufacturing and assembly production bases in Huaihua, and collaborative innovation centers and industrial bases have been established in Beijing, Quanzhou, Fujian and Hangzhou, Zhejiang. By 2023, the total assets of the enterprise will be more than 4 billion yuan, with more than 2,500 employees and a business scale of 4 billion yuan, which is maintaining a rapid growth trend.