āFraport Twin Star Airport Managementā AD is a German-Bulgarian company - a concessioner of Burgas (BOJ) and Varna (VAR) airports. In the joint company, Fraport holds a majority 60-percent share. Fraport Twin Star is responsible for operating, managing, and developing the two airports ā 24-hour gateways to the Black Sea: VAR serving the northeast, and BOJ, the southwest of Bulgaria. āFraport Twin Star Airport Managementā ADās tasks include training and improving employee qualification and expertise, enhancing service quality and the overall passenger experience, upgrading airport equipment and introducing new technologies, and modernizing infrastructure. Together, VAR and BOJ welcomed more than 3 million passengers last year and handled more than 23,000 flights of 72 Bulgarian and foreign airlines operating charter and scheduled flights to more than 121 destinations in Europe, the Middle East, and North Africa.