On 30 November 2022, Alstom and KTZ signed a new cooperation agreement.
In late December 2020, TVZ has sent to Tulpar works in Nur-Sultan the final batch of subassemblies for the new passenger cars ordered by KTZ, bringing the 2020 deliveries to 100 cars in total.
A 1,520 mm gauge Evolution, the GE-built demonstrator, also visited Poland. This diesel locomotive paid a visit from Kazakhstan to Poland in 2015, for evaluation by PKP LHS, the subsidiary responsible for operation of the freight-only, non-electrified 1,520 mm gauge 394 km Line 65. The visit took place in May and June 2015, following almost a 5,500 km long journey.