Founded in 1998, SONGZ has transformed the electric bus thermal management market, supplying over 249,478 air conditioning systems and thermal batteries in China. Its capacity spans conventional and electric buses from 6 to 25 meters, consolidating its presence as a leader in the Chinese automotive sector.
Global drive and technological innovation
Through strategic expansion, SONGZ has achieved a 90% share in electric bus air conditioning systems in key countries such as Brazil, Turkey, Thailand and Vietnam. This success is supported by its solid innovation base with over 1,200 patents, positioning it as a benchmark in thermal management technology.
With 17 factories, 387 engineers and nearly 4,000 employees, the company has also diversified its portfolio into climate control solutions for cars, subways, trains and trucks, demonstrating its commitment to sustainability and efficiency in transportation.
SONGZ and its role in the global energy transition
The company collaborates with renowned manufacturers such as BYD, Golden Dragon, Foton and JAC, adapting its solutions to different models, including double-decker buses. This approach focused on customization and sustainability reinforces its role as a catalyst in the transition towards electric mobility.



