The rules Apple and Intel came up with to stop the profits from the sales of minerals used in electronics from funding war have gone into effect on Friday, BusinessWeek reported. Exporters said miners in Central Africa will now focus on finding new buyers in Asia. China is the most likely market, as its demand for copper is expected to grow an average of seven percent per year between 2010 and 2014. China has recently moved its investments in mine from Australia and Canada to Africa.