People's Daily reported Thursday that about 400 million mobile phones were discarded each year, China accounting for nearly 100 million.
According to the daily, a mobile phone has various precious materials including 0.01 percent of gold, 20-25 percent of copper and 40-50 percent of recycling plastic.
A study shows that 150 grams of gold, 100 kg of copper and 3 kg of silver can be extracted from one tonne of discarded mobile phones.
Under current situation, 100 million discarded cell phones in China weigh 10,000 tonnes.
And this would fetch a bonanza of 1,500 kg of gold, the daily said.