Plovdiv Province others. Industry is very well developed: ferrous metallurgy near Plovdiv; thriving electronics industry in Plovdiv, Saedinenie, Voivodinovo, Radinovo and other villages in the area; agricultural machinery (tractors) in Karlovo; weapon and military plants in Sopot, Karlovo, Plovdiv; chemical industry in Plovdiv, Asenovgrad; food industry is developed almost everywhere, most notably in Plovdiv and Asenovgrad (wines). Tourism is a growing industry with the rich cultural heritage of the province and the numerous mineral springs which are of international importance. Plovdiv Province Plovdiv Province (: "Oblast Plovdiv", former name Plovdiv okrug) is a province in central southern Bulgaria. It comprises 18 municipalities
Plovdiv Airport and a tie-up between Hainan and Plovdiv Airport Invest. On 28 March 2018, Bulgarian Government awarded the consortium of HNA Group and Plovdiv Airport Invest a 35-year-long concession on Plovdiv airport in return for investments reaching €79 million, including a new cargo and passenger terminal. On 19 of July the consortium of HNA Group and Plovdiv Airport Invest have declared that it won't sign the concession contract which opens the road for the classified on the second place to take the concession. On the west side of the airport is located 24th Helicopter Air Base of the Bulgarian Air Force,