Cement manufacturers will only go back to using natural gas if the government halves the price at which it sells it to their factories to USD 3 / MMBtu, head of the Federation of Egyptian Industries’ cement division Medhat Estefanios tells Youm7. Coal will remain the more cost efficient energy source until then, says Estefanios. A recently formed government committee that meets twice a year cut gas prices to cement factories to USD 6 / MMBtu from USD 8 in its most recent meeting last October.