In 2017, its annual sales income reached 6.10 billion yuan ($898.9 million).

Shang said with a scientific and rigorous attitude, Longi has spared no effort to improve and enhance the production process of mono-crystalline ingot, improve the RCZ crystal pulling process, reduce the oxygen content, increase the service life of mono-crystalline ingot, and precisely control every manufacturing process of the products.

"In the future, Yinchuan Longi Mono-crystalline Silicon will also adhere to innovation, continue to increase investment in research and development, and release production capacity. At the same time, we will improve the layout of the industrial chain and help the economic development in Ningxia," said Shang.