Beijing Dongfen Technology Development Co., Ltd. was registered in February 2010 in Zhongguancun, a high-tech hub in Beijing, with a registered capital of 10 million yuan; The company is mainly committed to the research, development, production, and sales of precision gas analysis instruments. Its products mainly provide accurate analysis of gas concentrations in various production processes such as hydrogen, oxygen, carbon dioxide, chlorine, hydrogen chloride, helium, etc; The product has been widely used in fields such as hydrogen energy, electricity, petrochemicals, building materials, and basic chemical engineering; The revenue for 2021, 2022, and 2023 will be 26 million yuan, 31 million yuan, and 38.6 million yuan, respectively At present, Beijing Dongfen Technology has cooperated with thousands of enterprises from domestic groups such as China Shipbuilding Industry Corporation, Sinopec, PetroChina, National Energy Group, Huadian Group, Wanhua Chemical, and China Everbright Group. The Haqi brand name and trademark currently used uniformly for products in Beijing East Branch.