 KTZ is engaging on a major railroad project to link China and Southeast Asia to Europe for a length of .Currently the plan is to run the railway through Turkmenistan to Iran; Iran is linked to Turkey and Europe's standard gauge system In May 2013, a new rail link opened between Uzen (Kazakhstan) and Serhetyaka (Turkmenistan), crossing the border at Bolashak.The railway is 146 km long and cost 65bn tenge.