A Chinese national has been accused of setting up a handful of fake companies to hide that he was selling millions of dollars in potential nuclear materials to Tehran.
It is alledged by US authorities, that between 2006 and late 2008, various banned materials were shipped from China to Iran including,
53,900 pounds of maraging steel rods, a superhard metal used in uranium enrichment and to make the casings for nuclear bombs.
33,000 pounds of a specialised aluminum alloy used almost exclusively in long-range missile production.
66,000 pounds of tungsten copper plate, which is used in missile guidance systems.
The recipient is believed to have been a subsidiary of the Iranian Defense Ministry.
BT network 'vulnerable to Chinese attack'
http://www.theregister.co.uk/2009/03/30/huawei_threat/
"Spy chiefs have reportedly briefed ministers that Huawei hardware bought by BT could be hijacked by China to cripple the UK's communications infrastructure....In 2005 the Chinese firm [Huawei] won contracts to provide access nodes and optical equipment for the core of the new [BT] network."
Irancell Confident With Huawei Partnership
http://www.telecomsinsight.com/file/41235/irancell-confident-with-huawei-partnership.html
February 2008 - The failed takeover bid of U.S. computer communications maker 3Com by [Huawei] a Chinese military related company.
http://www.newsmax.com/smith/china_3com/2008/02/26/75627.html
According to the above article "The Chinese company, Huawei, was directly linked by several intelligence reports to supplying air defense and communications networks to Saddam Hussein and the Taliban."
"Secretary of Defense Robert Gates revealed that he was completely in the dark about the deal. The admission by Gates echoed similar confessions by the Pentagon top brass that they also were unaware of the buyout.
The Defense Department and the U.S. intelligence agencies were surprised by the proposed deal and had to scramble in order to get it reviewed for national security reasons."