Economy is among the important grounds for relations between countries, including Iran and China, said Zhang Jun, adding that China will safeguard the relations in any conditions, IRNA reported.
Tehran and Beijing trust each other, and China is trying hard to safeguard the activities of its companies in Iran, Zhang said.
Stating that encouraging Chinese companies to invest in Iran is among the strategic plans to enhance ties, he added the people and governments of the two countries have had good relations for a long time.
"The two countries have had historical collaborations about the Silk Road, which will continue in the new 'Belt and Road Initiative' as well," the Chinese official was quoted as saying.
He added that Beijing is seeking to further develop ties with Iran and has turned to the assistance from the private sector to this end.
Earlier this month, Governor of the Central Bank of Iran (CBI) Abdolnasser Hemati in a meeting with Chinese Ambassador to Iran Pang Sen discussed ways to broaden Tehran-Beijing banking relations.
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 various programs were on the Chinese government's agenda in this regard.
Hemmati said that despite the US efforts to cut Iran's financial relations, other countries were coming up with various solutions to continue and expand banking ties with the Islamic Republic.