The new units are expected to arrive in the summer of 2014 and have been funded by TheDepartment for Transport.
Seven of the new trains are earmarkedfor Londoncommuter services providing almost 4,500 extra seats each weekday.
The remainingthree new trains will be used to provide extra capacity on the Cross-City linein Birmingham.
Patrick Verwer,Managing Director of London Midland said:
There will be extra services arriving in London during the morning rush and departing from London in the evening peak.