The story
CASIL Telecommunications Holdings Limited (Chinese: 航天科技通訊有限公司, "CASIL Telecom" or "Castel" in short) was spin-off from China Aerospace International Holdings Limited (CASIL) in 1997. CASIL was a subsidiary of China Aerospace Science and Technology Corporation (CASC). As of 31 December 2007, CASC, via China Academy of Launch Vehicle Technology and its BVI subsidiary, "Astrotech Group Limited", owned 73.10% shares of the listed company. In 2008, the wind power business was injected to the listed company, as well as renaming the company to China Energine International (Holdings) Limited. The brand Castel was retained by the Hong Kong-incorporated subsidiary "China Aerospace Telecommunications Limited" (Chinese: 中國航天科技通信有限公司).
The company had caused a controversy by not removing Au-yeung Keung as the company secretary (a position in a listed company that was regulated) in 2016, despite his accountancy registration has been suspended for three years in 2016.
From Wikipedia’s article on China Energine, shared under CC BY-SA 4.0.4