Samsung has acknowledged labor abuses at its factories in China and vowed to immediately overhaul all of its suppliers in the country.

The company was responding to China Labor Watch's investigation of Samsung's eight plants and suppliers in China. The United States-based organization alleged that widespread abuses such as excessive overtime, exhausting working conditions that require employees to stand while working and cases of forced overtime without pay, were found in the factories.

According to a statement on Samsung's website, the company sent an investigation team from its headquarters in South Korea in August to look into working conditions at some of its plants and suppliers in China.