Under a concession contract, a private company operates, maintains and expands infrastructure owned by the government for a given period which is usually 20 to 30 years.
Di bawah kontrak konsesi, sebuah perusahaan swasta mengoperasikan, mengelola, dan memperluas infrastruktur milik negara dalam jangka waktu tertentu, biasanya 20 sampai 30 tahun.