Waste tires are internationally recognized as harmful waste, with the name of black pollution.
The composition of tires is 58% from natural rubber and synthetic rubber with coal, petroleum and natural gas as main raw materials,
but most of them can not be decomposed by nature. The increasing black pollution has caused serious pressure and damage to China's ecological environment.
The annual production of waste tires in China is increasing at the rate of 8% to 10%.
The world's scrap tire stock has reached 3 billion and this is growing at an astonishing rate of about 1 billion tires a year. Recovery rate is only about 50%,
 less than 50% of the developed countries in the West, resulting in a huge waste of resources. At the same time, it also pollutes the environment on which we live.