WORK is due to start later this year on the doubling of the 399km Zhundong Temple - Hami Naomao Lake heavy haul line in northwest China. Laying of the additional track is expected to be completed by the Xinjiang - Jiangnao Railway in 2025, at a cost of Yuan 10bn ($US 1.39bn).

The line connects the three major coal mining areas of Zhundong, Santang Lake and Naomao Lake. Once completed, it is expected that annual freight capacity will be increased from 48 million tonnes currently to more than 150 million tonnes.

At its western end, the line connects with the Urumqi - Jiangjunmiao railway and the eastern end will connect with the proposed Burak - Wutongshui line.

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