Shandong Hongli Tianyang Environmental Technology Co., Ltd. is a high-tech enterprise based in Jinan, Shandong Province. Established in 2003, it is one of the earliest companies in China specializing in the research, production, and sales of balcony-mounted solar water heaters for urban high-rise residences. The company pioneered the concept of "solar energy and building integration." After nearly two decades of development, the company's product lines now include solar water heating, air-source heat pump water heating, photovoltaic power generation, fresh air systems, and air purification systems. With over 50 patents, it has evolved into a comprehensive enterprise.

  Since its inception in 2003, the company has focused on developing balcony-mounted solar water heaters suitable for urban high-rise applications. It was the first in China to research, produce, and sell such products and to introduce the idea of "solar energy and building integration."

  Starting in 2016, the company became one of the earliest in China's traditional solar water heater industry to venture into photovoltaic power generation and distributed power stations. It was the first in its sector to obtain the Grade IV Qualification for Power Engineering Installation and Repair, as well as the Grade III Qualification for General Contracting of Power Projects. In the following year, it achieved sales revenue of 200 million RMB from photovoltaic power stations, laying a solid foundation for future growth.

  Leveraging its experience in engineering support, the company developed 100L and 120L small-sized air-source heat pump water heaters, which are ideally suited for engineering applications and indoor installation. These products represent innovation and leadership in the domestic market.

  The fresh air system is the culmination of a decade of research and development. Designed in consideration of China's air quality and residential characteristics, it is the most suitable fresh air system for domestic households. The air purifiers developed by the company meet medical-grade standards.