The International Atomic Energy Agency (IAEA) installed monitoring equipment at Iran's new underground centrifuge component manufacturing plant in Natanz. It also unsealed equipment at the plant. Iranian officials said that production would begin immediately but did not reveal the exact location of the new operation within the large Natanz facility. They also reaffirmed that Iran will withhold the monitoring equipment's data until a deal over the Joint Comprehensive Plan of Action (JCPOA) is reached.