China is a large producer of electronic and electrical equipment (EEE). According to the Chinese National Bureau of Statistics, in 2010, the total production of televisions, refrigerators, air conditioners and personal computers exceeded 546 million units. As a result, China is a large generator of EEE waste. The All-China Federation of Supply and Marketing Cooperation estimated that China generated about 50 million units of e-waste in 2010 - a number expected to increase rapidly. By 2020, it is estimated that e-waste in China will grow to 137 million units. This is worrying because e-waste contains several precious metals, and other recyclable and hazardous materials, it can cause serious environmental contamination and health problems if disposed or recycled incorrectly.