Dịka onye raara onwe ya nye & onye na-eweta ihe nrụpụta, CONVISTA ga-aga Iran Oil Show na Tehran, site na 06th ruo 09h May, 2015 na Argentina Oil & Gas Show na Buenos Aires, site na 05th ruo 08h October, 2015. Na-ezukọ ebe ahụ, na-ekwu okwu ihu na ihu ba uba anyi ibe kọntaktị na azụmahịa!
GỤKWUO