agreement form exchang letter provision applic agreement amend agreement european econom commun gover democrat republ são tomé princip fish são tomé princip sign brussel februari effect june letter govern democrat republ são tomé princip sir refer agreement european econom commun govern democrat republ são tomé princip initial amend agreement fish são tomé princip sign brussel februari honour inform govern democrat republ são tomé princip prepar appli agreement provision basi effect june entri forc accord articl agreement provid european econom commun understand payment instal equal financi compens agreement effect octob oblig confirm european econom commun agreement provision applic accept sir assur highest consider govern democrat republ são tomé princip letter european econom commun sir receipt letter todai date read refer agreement european econom commun govern democrat republ são tomé princip initial amend agreement fish são tomé principp sign brussel februari honour inform govern democrat republ são tomé princip prepar appli agreement provision basi effect june entri forc accord articl agreement provid european econom commun understand payment instal equal financi compens sppecifi agreement effect octob oblig confirm european econom commun agreement provision applic honour confirm european econom commun agreement provision applic agreement accept sir assur highest consider behalf council european commun