Tavakoli said that the volume of trade and commercial exchange are 'insufficient` compared with the growing trend of Iran-Germany diplomatic relations in the past several years.

Tavakoli called for more closer cooperation in the field of trade and economy between two countries.

"The 7th Majlis backs bolstering economic cooperation with Germany and the European countries investment in Iran," he said.

Alluding to the imbalance in Tehran-Berlin economic and trade ties, Tavakoli called on German officials to remove the hurdles to boost productivity and utilization of economic potentials.

Elsewhere, director of Majlis research center pointed to the German support to members of the terrorist Mojahedin-e Khalq Organization (MKO), saying it leaves negative effects on Iranian nation and officials.

The Iranian official also pointed to the Iran's nuclear issue, saying European states should have no doubt on Iran's nuclear program.

Europe has adopted double standards and it kept silent toward Israel which possesses stockpiles of nuclear weapons and is the center of tension in the region, Tavakoli added.

Tavakoli said that Iran is honest in his commitment to Non-Proliferation Treaty (NPT) and will never think of producing nuclear weapons.

Iran, a signatory to NPT, also signed additional protocol to NPT granting intrusive inspections right to International Atomic Energy Agency (IAEA) last December.

On October 21, 2003, Three European partners, France, Britain and Germany undertook to provide Iran with advanced nuclear technology in return for signing the additional protocol.

German ambassador said he was pleased with his presence at Majlis Research Center, saying the two countries bilateral political, economic and cultural ties are in an "excellent" level.

Iran and Germany have extensive common grounds which can contribute to developing their relations, Maltzahn added.

Pointing to the terrorist MKO, he said Germany recognizes MKO as a "terrorist group" and German judiciary officials control them.

Maltzahn, in another development, said Germany has not exported any chemical weapons to Iraq.

"Several German companies exported toxic chemicals illegally to Iraq and Iraq used them in launching chemical warfare against Iranian soldiers and civilians in 1980s. The German companies are currently under prosecution by the German justice system," the ambassador said.

German Ambassador said that peaceful use of nuclear energy is Iran's legitimate right.

Germany has no concern about Iranian nuclear program and believes that Iran has planned to apply nuclear energy for civilian utility, Maltzahn said.

He called for Iran's increased efforts to build confidence for removing the international concerns over Iranian nuclear program.

Maltzahn stressed developing bilateral economic and trade relations.