CRRC Ziyang Co., Ltd. has successfully completed a major upgrade of a batch of diesel locomotives delivered to Turkmenistan in 2005. This was reported by Turkmenportal.

The ceremony was attended by Berdi Saryev, Deputy General Director of JSC ‘Demirýollary’, Vepa Akmyradov, Director of the Locomotive Bureau, Baymyrat Atayev, Director of the Office, as well as CRRC Ziyang management and specialists.

The contract for the overhaul was signed at the end of 2024, and in May 2025, the first batch of locomotives returned to the factory for comprehensive maintenance. The work included the repair of key components — bogies, diesel engines, electrical systems — as well as the installation of modern control, safety and ergonomic systems.

Since the start of cooperation in 2004, CRRC Ziyang has delivered 294 locomotives to Turkmenistan, accounting for over 98% of domestic rail transport. The modernised trains will soon be delivered to the country for commissioning.