"The economic arena is among the important areas of relations between Iran and China and Beijing and Tehran are two big and trustworthy trade partners," Zhang said on Monday.
He added that Beijing is endeavoring to further develop ties with Iran and has taken assistance from the private sector to this end.
Zhang described relations with Iran as excellent, healthy, extensive and stable, specially in economic fields, and said, "We want these ties to further expand."
Iran and China are enjoying strong bilateral relations.
Governor of the Central Bank of Iran (CBI) Abdolnasser Hemmati in a meeting with Chinese Ambassador to Iran Pang Sen earlier this month discussed ways to broaden banking relations between Tehran and Beijing.
Abdolnasser Hemmati and Pang Sen called for increasing economic ties between the two countries and accelerating the process of solving related banking problems.
The Chinese envoy said that his country was eager to boost strategic ties with the Islamic Republic in the long run, adding that different programs were on the agenda of the Chinese government in this regard.
For his part, Hemmati said that despite the US efforts to cut Iran’s financial relations, different countries were coming up with various solutions to continue and expand their banking ties with the Islamic Republic.