What is the limited relationship between China Power Construction and China Power Construction Hydropower Development Group?

The relationship between the two units is superior and subordinate. The full name of China Power Construction is China Electric Power Construction Group, and it belongs to China Water Conservancy and Hydropower Construction Group (hereinafter referred to as China Hydropower, including 1 ~ 16 Hydropower Engineering Bureau Co., Ltd.) and China Hydropower Consulting Group (including Beijing Institute, Guiyang Institute, Kunming Institute, Northwest Institute, East China Institute and Chengkan Institute Co., Ltd.). China Power Construction is one of more than 90 super-large central enterprises under the jurisdiction of the State-owned Assets Supervision and Administration Commission.