A city mine (urban mine) is a treasure trove of rare metals... 2

“The way of recycling rather than foreign resource acquisition”

Smart the road of recycling than the acquisition of resources overseas-the gold contained in the phone and game consoles, etc. is 0.3%. On the other hand, it is said that the amount of harvesting from the natural ore 1 ton is 3-5%. The ratio is about 0.0003%. Other metals with high depletion are also gradually decreasing. The reason is that the ore with a lot of content is decreasing because it takes too much. Based on the current situation, eyes are on the effective use of urban mines where the amount of sampling is reliable. Moreover, it leads to the prevention of the pollution and the health damage of a local resident by the harmful substance to the environment by a large-scale mining, and the hazardous material at the time of harvesting. 

But hear the voices of Shing from the industry and some of the scholars. "Natural ore cannot be won in terms of cost". As a matter of fact, technology to lower the recycling costs of gold and silver and other rare metal recoveries is advancing rapidly. In the environment business, "recycling is a manufacturing industry with waste materials" and from the point of view, there are few successful cases where metal recovery from urban mines is a business. As a guide of Yokohama Metal, Tanaka Precious metals has expanded its base in earnest.

Urban mining is reusing, recycling and rebuilding raw materials from (the electrical and electronic waste of) the city.