TEHRAN, Iran -- Iran on Monday gave Mongolia's president a tour of its main uranium enrichment plant, the first time that it has opened the site to a foreign leader.

The visit by President Tsakhia Elbegdorj followed a summit of nonaligned nations in Tehran that Iranian officials hoped would show the failure of Western sanctions to isolate Iran diplomatically.

State TV showed Elbegdorj inspecting centrifuges used to enrich uranium at the facility in the central Iranian town of Natanz.

The West says Iran's nuclear program aims at developing weapons technology, but Iran says it is for peaceful purposes such as power generation and cancer treatment.

Mongolia is said to be building its first nuclear power plant and mining uranium with the help of Russia.

Iran has often said it is willing to transfer its nuclear expertise to other countries.

The TV broadcast said the Mongolian leader was allowed to visit whatever he wanted in the plant. It suggested that Elbegdorj endorsed the Iranian claim about the peaceful purposes of its nuclear program.

"This site is a unique place. Maybe in other countries it is not possible to visit such a sensitive place," he was quoted as saying. "I found out how the enriched uranium is being used for peaceful energy."

Inspectors from the U.N. nuclear agency visit the site regularly, and Iran has in the past allowed foreign diplomats and reporters to enter it as well.

Mongolia is one of the 120 members of the Nonaligned Movement of emerging nations, which held its summit in Tehran last week. Iran said during the meeting that it would open its nuclear sites to participating delegates.

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  • In this Nov. 30, 2009, file photo released by the semi-official Iranian Students News Agency (ISNA), Iranian technicians, work with foreign colleagues at the Bushehr Nuclear Power Plant, just outside the southern port city of Bushehr, Iran. (AP Photo/ISNA,Mehdi Ghasemi, File)

  • FILE - In this Saturday, Aug. 21, 2010, file photo, an Iranian security directs media at the Bushehr nuclear power plant, with the reactor building seen in the background, just outside the southern city of Bushehr, Iran. (AP Photo/Vahid Salemi, File)

  • In this photo released by the official website of the Iranian presidency office, Iranian President Mahmoud Ahmadinejad, second right, welcomes Egyptian President Mohammed Morsi, for the opening session of the Nonaligned Movement, NAM, summit, in Tehran, Iran, on Thursday, Aug. 30, 2012. (AP Photo/Presidency Office)

  • This photo released by the official website of the Iranian supreme leader's office, shows the opening session of the Non-Aligned Movement (NAM) summit, in Tehran, Iran, on Thursday, Aug. 30, 2012. (AP Photo/Office of the Supreme Leader)

  • In this photo released by the official website of the Iranian supreme leader's office, Supreme Leader Ayatollah Ali Khamenei, center, Parliament Speaker Ali Larijani, right, Chief of Expediency Council, Akbar Hashemi Rafsanjani, second right, President Mahmoud Ahmadinejad, second left, and Judiciary Chief Sadeq Larijani, left, listen to Iran's national anthem, at the opening session of the Non-Aligned Movement (NAM) summit, in Tehran, Iran, on Thursday, Aug. 30, 2012. (AP Photo/Office of the Supreme Leader)

  • In this photo released by the official website of the Iranian presidency office, Egyptian President Mohammed Morsi, left, talks with Iranian officials during opening session of Non-Aligned Movement (NAM) summit, in Tehran, Iran, on Thursday, Aug. 30, 2012. (AP Photo/Presidency Office)

  • Ali Akbar Salehi

    Iranian Foreign Minister Ali Akbar Salehi delivers a speech to an expert-level meeting of the Non-Aligned Movement, NAM, in Tehran, Iran, on Sunday, Aug. 26, 2012. (AP Photo/Vahid Salemi)

  • Arab diplomats talk prior to the start of an expert-level meeting of the Non-Aligned Movement, NAM, in Tehran, Iran, on Sunday, Aug. 26, 2012. (AP Photo/Vahid Salemi)