 BRB iragabisha abacuruza amafaranga batisunze amategeko Amashirahamwe yo mu Burundi asabwa kwiyandikisha bushasha U Burundi bugiye gutangura kwimba Coltan Haciye amezi make ibanki nkuru yigihugu, BRB, igabishije Abarundi kwirinda urudandazwa rwamafaranga rukorwa biciye mu mihora ngurukanabumenyi bita monnaies virtuelles canke crypto-monnaies. 