Hartasuma Sdn Bhd is a leading integrated rolling stock and rail services company in the region. Utilizing modular technology at its production facility which sits strategically in Pulau Indah, Port Klang, its core competencies lie in innovative engineering, refurbishment, overhaul, operations and maintenance, assembly and supply of rolling stock which includes passenger coaches, Electric Multiple Unit (EMU), Light Rail Transit (LRT) and Mass Rapid Transit (MRT) cars.