Two Chinese companies have won the contract to build a 3.0617-trillion shillings ($1.32-billion) modern rail line in Tanzania, the East African nation’s foreign minister said, extending more than a decade of Chinese involvement in the country. China Civil Engineering Construction Corporation and China Railway Construction Limited will build the 341 km link to connect the Lake Victoria port city of Mwanza in the north to the town of Isaka, on the way to the Indian Ocean port of Dar es Salaam.