Home2007 Treaties and Agreements ...Brazil (07-622) – Memorandum of Understanding Concerning Scientific and Technical Cooperation in the Earth Sciences hide Brazil (07-622) – Memorandum of Understanding Concerning Scientific and Technical Cooperation in the Earth Sciences TIAS Office of Treaty Affairs June 22, 2007 Scientific and Technological Cooperation: Earth Sciences Memorandum of understanding signed at Brasilia and Natal June 22, 2007; entered into force June 22, 2007. Download attachment [628 KB] Tags Brazil Scientific and Technological Cooperation Treaties