Iran obtained 20 kilograms (44 pounds) of beryllium for its nuclear weapons program from China last year, an Iranian opposition group claimed Thursday.
The National Council of Resistance of Iran did not identify the source of its claim, but it said the beryllium was imported by the Madj Gostar company, the AP reports.
"This company has its contacts and special channels for smuggling material into Iran. It brings this banned material from Dubai to Iran," said Hussein Abedini, member of the foreign affairs committee of the National Council of Resistance of Iran.
"According to reliable reports from inside Iran obtained by the Iranian resistance recently the clerical regime is trying vigorously to obtain beryllium metal to be used in its secret nuclear project," he said.
At a news conference in Paris in February, the group claimed it had evidence that Iran was acquiring beryllium as part of an effort to make detonators for nuclear devices.