Hai Jun Yang

Weihai Ploumeter Co., Ltd. engages in the research and development, production, and sale of Internet of Things (IoT) ultrasonic metering instruments. Its products and services include ultrasonic heat meters, ultrasonic water meters, and heating energy saving management. The company was founded in 1988 and is headquartered in Weihai, China.

China Fire & Security Group, Inc. is engaged in the designing, development, manufacturing and sale of fire protection products and services for industrial customers. It designs and installs fire protection systems, including detectors, controller, fire alarm control and network supervisory systems, fire safety monitoring center systems and remote customer service systems. The firm also offers fire extinguishing systems, such as water mist, anti-false-spray water spray and gas-based and foam-based fire extinguishing systems, as well as portable and transportable fire extinguishers and high pressure cylinders. The company was founded by Weigang Li and Brian Lin in 1995 and is headquartered in Beijing, China.

Part of Amber Parent Ltd., Sureland Industrial Fire Safety Ltd. is a Chinese company that manufactures and distributes fire protection products. The company is based in Shunyi, China. The company was founded by Wei Gang Li, Gangjin Li. Sureland Industrial Fire Safety was acquired by China Fire Protection Group Ltd., part of Amber Parent Ltd. from October 27, 2006 on June 02, 2006.