By
Alfred Zacharia
Alfred Zacharia is a business reporter for The Citizen and Mwananchi newspapers.
Mwananchi Communications Limitted
Dodoma. The Tanzania Electric Supply Company (Tanesco) has signed a Sh63.19 billion contract with Cotech Engineering Company to expand electricity infrastructure serving Geita Gold Mine (GGM), as demand for power at the mine is expected to more than double.







