Defence experts demand tightening of export regulations on potential weapon materials
British officials have allowed the export to Iran of a cargo of radioactive material that experts believe could be used in a nuclear weapons programme, The Observer can reveal. The disclosure has prompted calls for an inquiry into how the international trade in such compounds is controlled.
On 31 August a truck carrying 1,000kg of zirconium silicate supplied by a British firm was stopped by Bulgarian customs at the Turkish border on its way to Tehran, after travelling 2,400 kilometres (1,500 miles) from Britain, through Germany and Romania, without being stopped. Zirconium can be used as a component of a nuclear programme. According to one expert, it is used in nuclear reactors to stop fuel rods corroding and can also be used as part of a nuclear warhead. The metal can be extracted from zirconium silicate. It is because the compound can be used for military purposes that its trade is usually tightly controlled.
The fact that a British firm was allowed to sell the compound without scrutiny will raise questions for the British government over its controls on sensitive materials. Intelligence documents disclosed last week in the Guardian detailed how Iran is creating agencies and middlemen to procure equipment and know-how in Europe in a covert attempt to build nuclear weapons. The Iranian President, Mahmoud Ahmadinejad, is expected this week to order the resumption of tests on machinery that can be used to make weapons-grade uranium.
A Department of Trade and Industry spokeswoman said: 'The DTI informed the Bulgarian authorities that the goods as described were not controlled under UK export control (as the hafnium content of the sand was 1.1 per cent by weight) and did not therefore require an export licence... this particular case raised no WMD end-use concerns.'
However, John Large, an independent nuclear consultant, said: 'It is not a very sophisticated process to extract the zirconium from such material. Even though it appears that technically this cargo does not fall within the international controls, I would still be concerned. Zirconium is used for two purposes: one for cladding nuclear fuel rods inside a reactor and as material for a nuclear weapon. If Iran wanted this material for any illicit purposes, this would be one way it could get its hands on it.'
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