Alstom has signed a contract worth around EUR 430 million for 10 new nine-car Aventra trains for Transport for London's Elizabeth line, along with associated maintenance until 2046. Opened in 2022, the Elizabeth line continues to experience passenger demand ahead of predictions and its current 70-strong fleet of Alstom-built Aventra Class 345 trains would be insufficient to meet demand later this decade and through the 2030s. Like the rest of the fleet, the additional Aventra electric multiple unit (EMU) passenger trains will be built at Alstom's historic Derby Litchurch Lane Works, the only UK facility that designs, engineers, builds and tests trains for domestic and export markets.

The contract includes new trains which are funded by GBP 220.5 million from the Department for Transport, with Transport for London also contracting for the provision of train maintenance on the units until 2046.