https://web3.cmvm.pt/sdi/emitentes/docs/FR73876.pdf
https://www.portugalresident.com/eu-court-annuls-decision-allowing-portugal-to-channel-e1-2-billion-of-state-aid-to-tap/
https://www.ch-aviation.com/portal/news/123029-tap-reveals-new-restructuring-phase-with-share-capital-reset