Haoersai Technology Group Corp., Ltd. designs, constructs, procures, operates, maintains, and sells lighting engineering products in China. Its offerings include smart light poles for national events, landmark buildings, super high-rise buildings, gyms, city renovation, municipal roads and bridges, interior spaces, and health lighting. The company also provides smart tourism experiences, smart city and town solutions, digital village, smart parking and security, and smart sanitation, along with the HAO platform for smart consulting, planning, design, and management. Additionally, it engages in smart energy, offering intelligent transportation energy replenishment and one-stop solutions. Formerly known as HES Technology Group Co., Ltd., it changed its name to Haoersai Technology Group Corp., Ltd. in May 2020. Founded in 2000, it is headquartered in Beijing, China.