There is indeed gold in the mobile phone motherboard, and it is much more than mining smelting ore, but major companies have not done so. Why? This is not a good deal.

As we all know, the structure of the mobile phone motherboard is very complicated, which invisibly increases the difficulty of withdrawing money. In addition, it is necessary to clean the motherboard with various strong acid and alkali solutions to obtain the precipitation of Jinsha. However, in this process, a lot of wastewater will be produced. It is troublesome to treat this kind of wastewater. It can't be directly discharged into the river to pollute the water source, so it is necessary to buy large-scale clean filtration equipment to treat this wastewater. In this way, the cost of treating waste water is even higher than the income of Jinsha, which is simply a loss-making business.

Then you can't help but ask, in that case, why are there many second-hand mobile phones to extract Jinsha? The answer is that these are small-scale personal behaviors, and all the labels can't meet the requirements of the country. In order to seek benefits, they completely ignored the treatment of wastewater and directly discharged it into rivers, causing a lot of pollution. Therefore, this kind of personal behavior is illegal and should be completely eliminated.