-they would close
The word clausurarían is the conditional form of clausurar in the third person plural.
See the full clausurar conjugation


La Unión Europea informó asimismo a los Estados ACP y a la parte mauritana de que, en ausencia de nuevos elementos, se clausurarían las consultas y se adoptarían las medidas adecuadas.
It also informed the ACP States and Mauritanian side that, in the absence of any new elements, the consultations would be closed and appropriate measures adopted.
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