Nuclear Sites

Pars Trash (Tarash)

Pars Trash, a subsidiary of Kalaye Electric located in Tehran, is a centrifuge site that received equipment from Kalaye Electric in particular for Iran’s centrifuge manufacturing and development effort.

Pars Trash, a small company employing about ten people, is located in Tehran among warehouses and light industrial buildings about a kilometer west of the Kalaye Electric facility. It manufactured centrifuge outer casings. These are the thick aluminum tubes that house the centrifuge rotor assembly and, in the case of an accident, prevent broken pieces of the thin-walled rotor assembly, which can act like shrapnel, from injuring or even killing bystanders. Pars Trash was originally a small, private factory involved in making automobile parts. It went bankrupt and was bought by the Kalaye Electric Company, or its subsidiary Farayand, for the three expensive computer-operated machine tools it owned, which could be adapted for the manufacture of centrifuge components.

An engineer married to the plant manager is believed to have been the backbone of the operation. She programmed and set up the machines to make centrifuge components and ensured their quality, before turning the operation over to a technician who subsequently operated the automated machines to produce thousands of components.

In February 2003, Pars Trash was involved in Iran’s concealment efforts.  The facility stored equipment that Iran had hastily moved from the Kalaye Electric site in an attempt to prevent its discovery by IAEA inspectors who were seeking access to Kalaye Electric.  Subsequently, under intense international pressure, Iran revealed these and other concealment activities to the IAEA.

The current status of operations at Pars Trash is unknown, as IAEA inspectors had access to the site only while Iran was adhering voluntarily to the suspension of its centrifuge program and the Additional Protocol, a status that ended in 2006.

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