Neither Kenya Railways nor CRBC is able to confirm the cost of constructing the extension, although China's Exim Bank, which is funding the $US 3.6bn first phase, will finance the new section as well.
The extension will be designed for operation by 80km/h freight trains and 120km/h passenger trains, and will serve the country's geothermal production centre. Naivasha is also a developing industrial and agricultural hub.
The extension will form part of the second phase of the project to extend the new railway to Malaba on the Ugandan border.
