Sinohydro (Chinese: 中国水电, long form 中国水利水电建设集团公司) is a Chinese state-owned hydropower engineering and construction company. In the 2012 Engineering News-Record Top 225 Global Contractors, a ranking by annual revenue, the company is 14th by overall position, and 6th among Chinese construction companies.
The company was founded in 1950, and is based in Beijing, China.
The company has aggressively gone on the path of international expansion, becoming a "face of China expansion" across the world by pursuing operations in 55 countries across Asia, Africa, Europe (from the European headquarters of Belgrade, Serbia), North America and South America.
In the course of international expansion, the company has run into bumps ranging from political risk to environmental controversy. Workers of the affiliated company Power Construction Corporation were abducted in 2012 by the Sudan People’s Liberation Movement-North while building a road in Sudan.
In Malaysia, the company worked on a joint venture with Sime Engineering to build the largest dam in the country. The Sarawak Report, alleged that Sinohydro had widely used a technique involving adding excessive water to cement, making the construction unsafe. Sinohydro responded that the dam was safe but some work like the cleaning of silos wasn't done "following instructions". The webpage of the Sarawak Report was hacked after it published the story. 
The main operating company of the group is Sinohydro Ltd (中国水利水电建设股份有限公司) which is a major subsidiary formed from units of the Group parent (中国水利水电建设集团公司) and Sinohydro Consulting (中国水电工程顾问集团公司) and now held through a holding company Sinohydro Group Limited (中国电力建设集团有限公司).
The company engages in architectural projects, electric power investment, house property and real estate, research and development, and design and manufacture of construction equipment. It provides investment, project financing, consultation, and construction services. The company also engages in the manufacture and installation of mechanical and electrical plants. It trades in water conservancy, power generation, expressway, railway, harbor and sea-route, airport, municipal public utility, and building industries.
Sinohydro selected by Government of Pakistan to construct WAPDA Tarbela IV Power Plant since September 2013
- 2012: Selected by Nigerian government to construct the Zungeru hydropower station, project worth NGN 162 billion or USD 1.013 billion.
- 2012: Selected by a local government in Georgia to construct a ring road, project worth GEL 210 million or USD 129 million.
- 2013: Selected by Government of Uganda to construct Karuma Power Station, a 600 Megawatt power station, the largest in the country. Construction costs estimated at approximately US$2.2 billion.
- Building the Port of Hambantota in Sri Lanka, which will become the largest port in South Asia by 2014.
- "Top 225 Global Contractors". Engineering News-Record.
- Hook, Leslie (January 3, 2012). "Sinohydro becomes face of China expansion". Financial Times.
- "Sinohydro admits flaws in Bakun Dam construction procedures". Asian Power. 21 June 2011. Retrieved 22 February 2012.
- "Bakun Dam ‘Unsafe’! – Exclusive Evidence on Corner-Cutting and Sloppy Construction Practices". The Sarawak Report. 2011-04-13.
- "Sinohydro Wins Hydropower Project in Nigeria". SinoCast Daily Energy Beat. December 14, 2012.
- "Sinohydro Wins New Construction Contract in Georgia". SinoCast Daily Construction & Real Estate Beat. November 28, 2012.
- Uganda and China To Jointly Fund Karuma Power Dam Construction