Raids on factories in Guangdong province in January in search of counterfeit Nintendo games found 300,000 items of games, packaging and components, according to the Japanese games-maker. The raids were carried out by local commercial officials acting on information from Nintendo's own investigators, rather than by police, and those raided were fined, rather than subject to criminal penalties. The company says that China is the main source of counterfeit Nintendo games on the world market and it had filed formal complaints with the authorities in Washington that China – as well as Hong Kong, Mexico and Paraguay – is failing to protect its copyrights adequately.