Dangote Group's has signed a $4 billion investment agreement with Sinoma International Engineering Company of China, which is expected to add another 10 cement plants to boost production capacity in Africa. The construction of the 10 new plants, expected to begin in the next three months, will be built in Ethiopia, Tanzania, South Africa, Congo, Gabon, another one in Obajana and two additional plants of 6 million tonnes capacity in Ibese with a blending plant in Cameroon. "When all the projects are completed in 30 months, the Ethiopia, Tanzania, Gabon, will be producing 1.5 million metric tonnes of cement each, while South Africa, Obajana and the two plants in Ibese, Ogun State, will generate 3 million tonnes each. The Cameroon blending plant is also to produce 1.5 million tons," disclosed Devakumar Edwin, group executive director, business development of Dangote Group. To sustain the leadership position in Nigeria where it currently accounts for over 50 percent share of the cement market, the group with the help of Sinoma International will be able to produce about 50 million metric tonnes from its various facilities across Africa by 2015. The company is currently increasing the capacity of its existing plants by building new ones to enable it to take advantage of the Federal Government's proposed ban on cement imports by 2011.