PKP SKM Trojmiasto to invest PLN1.1 billion by 2023 March 3, 2016 | Europe Finance Polish regional passenger train operator PKP SKM Trojmiasto has stated that it will invest PLN1.1 billion by 2023. The amount will be invested to purchase 10 trains, install a safety monitoring system... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password