Ranked seventh is Kunming Yunnei Power Co., Ltd., located in Kunming, Yunnan. It was established in 1999 and formerly known as Yunnan Internal Combustion Engine Factory. It has been a historical company engaged in the development and production of diesel engines for nearly 60 years and is a Chinese internal combustion engine industry. A pioneer enterprise, a national high-tech enterprise, and a national-level enterprise technology center. The company acquired Chengdu Internal Combustion Engine Factory in 2001 to establish Chengdu Yunnei Power Co., Ltd. In 2013, the company invested in the establishment of Shandong Yunnei Power Co., Ltd. Personally, I am very optimistic about this company. Everyone can express your opinion.