China Huaneng Group is planning to buy the remaining shares in Huaneng Renewables Corporation Limited (SEHK:958). Huaneng Renewables said in a filing to the Hong Kong stock exchange that the China Huaneng intends to make an offer for all outstanding shares, which could lead to privatization and delisting. Huaneng Group controls 52.7% of the renewable company’s total issued shares, according to statement. Nobody answered calls to the parent company’s headquarters and it didn’t respond to a fax seeking comment.