Embraer S.A. filed a Form 6-K on November 2, 2026, disclosing that the Hellenic Ministry of National Defense signed a contract to acquire three KC-390 Millennium aircraft with options for three additional aircraft, through a government-to-government agreement between Greece and Portugal.

Key Highlights

  • Contract signed: The Hellenic Ministry of National Defense signed a contract for three KC-390 Millennium aircraft, with options for an additional three, through a government-to-government agreement between Greece and Portugal.
  • First delivery scheduled: According to the filing, the Hellenic Air Force will receive its first KC-390 Millennium in 2027.
  • Seventh European nation: The filing states Greece becomes the seventh European nation to select the aircraft, joining Portugal, Hungary, the Netherlands, Austria, the Czech Republic, and Sweden.
  • Aircraft payload and speed: The KC-390 Millennium is described in the filing as capable of carrying 26 tons of payload and flying at 470 knots.
  • Broader operator base: Beyond Europe, the filing notes the KC-390 Millennium has been acquired by the air forces of Brazil, the Republic of Korea, the Republic of Uzbekistan, the United Arab Emirates, and Colombia.

Embraer Discloses Greek KC-390 Millennium Deal Details and NATO Context

According to the filing, the Hellenic Ministry of National Defense signed the contract on November 2, 2026, covering three firm KC-390 Millennium aircraft produced by Embraer (NYSE:EMBJ / B3: EMBJ3), with options for three more. The agreement was structured as a government-to-government arrangement between Greece and Portugal. The filing states the acquisition will enhance the Hellenic Air Force's airlift and air-to-air refueling capabilities and strengthen interoperability with NATO and allied forces. Greece will also benefit from "European synergies in training, support, and logistics," the filing noted.

The filing quoted Bosco Da Costa Junior, President and CEO of Embraer Defense and Security, as saying: "We are honored by Greece's decision to acquire the KC-390 Millennium. This choice underscores the trust and confidence that leading NATO members place in our aircraft." He added that "the KC-390's proven performance, reliability, and cost efficiency make it an ideal choice for nations seeking to enhance their operational capabilities."

The filing describes the KC-390 Millennium as a next-generation military aircraft designed with "interoperability as a key requirement," integrating advanced communications, mission systems, and a modern digital architecture. It is capable of performing missions including cargo and troop transport, equipment and personnel airdrops, medical evacuation, search and rescue, firefighting, and humanitarian missions, and can operate from temporary or unpaved runways. When configured with quick-installation air-to-air refueling equipment, the aircraft can function as both a tanker and a receiver, according to the filing.

What Was Disclosed

Embraer's Form 6-K for November 2026 disclosed that Greece signed a contract for three KC-390 Millennium aircraft, with options for three more, via a Greece-Portugal government-to-government agreement. First delivery to the Hellenic Air Force is stated to be in 2027.