Under the preliminary calculations, the projects have a combined value of 30 billion euro, Tajani said speaking through an interpreter during a news conference on the sidelines of the EU - Western Balkans summit in Sofia broadcast by Bulgarian TV channel Kanal 3. The 2015 migration crisis - in which hundreds of thousands entered the European Union via the western Balkan route - also provided a stark reminder of the region's importance to the bloc's own stability.
He insisted that the Western Balkans are a European region, and all euro-elites understand its importance.
Borissov, whose country now holds the rotating Presidency of the Council of the EU, was speaking at a joint news conference on May 17 with European Council President Donald Tusk and European Commission President Jean-Claude Juncker, who both hailed the Sofia Summit as successful.
Secure Western Balkans, which are developing well economically, will ensure peace and security for all of us, German Chancellor Angela Merkel told reporters before the EU-Western Balkans Summit, Focus News Agency reports.
While the summit did not give any of the six countries a firm date for when they might join the bloc, the declaration released at the close of the day's talks encourages all of the Western Balkan countries to continue on the path of EU-oriented reform.
The bloc faces a dilemma over Albania, Bosnia, Serbia, Montenegro, Macedonia and Kosovo - wanting to offer them enough to keep them out of Moscow's orbit without rushing to let them join before they carry out important reforms.
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The declaration says, in part: "the EU reaffirms its unequivocal support for the European perspective of the Western Balkans".
Tusk said that while there were low expectations regarding Iran, there were high expectations regarding Washington. She noted that the Bulgarian prime minister has invested a lot of efforts in the issue.
Iran, the Middle East peace process and trade tariffs have become the dishes of the day, overshadowing European Union enlargement talks. "We don't want that to happen".
Meanwhile, Spanish Prime Minister Mariano Rajoy, was notably absent after he announced he wouldn't share a table with Kosovan representatives. Greece, however, have opposed this, with Athens saying it implies a claim to a Greek region with the same name.
Unlocking talks for Macedonia - officially known as the Former Yugoslav Republic of Macedonia (FYROM) - could also be tricky for the European Union as they squabble over naming.