Wang made the remarks after a meeting with Iranian Foreign Minister Mohammad Javad Zarif in the Chinese city of Tengchong on Saturday where both sides reaffirmed their commitment to the nuclear deal, officially known as the Joint Comprehensive Plan of Action (JCPOA), signed between Iran and major world powers in 2015, Chinese Foreign Ministry said in a statement.
"China proposes to build a regional multilateral dialogue platform with equal participation of all stakeholders," said the statement.
It added that the forum would "enhance mutual understanding through dialogue and explore political and diplomatic solutions to security issues in the Middle East."
Support for the JCPOA, Wang said, which was abandoned by US President Donald Trump, would be a precondition of entry to the forum.
Following the meeting with his Chinese counterpart, the Iranian foreign minister said he held “fruitful” talks with Wang on strategic partnership, adding that both sides oppose the US unilateralism.
Trump, a hawkish critic of the JCPOA, unilaterally withdrew Washington from the agreement in May 2018, and unleashed the “toughest ever” sanctions against the Islamic Republic in defiance of global criticism.
Following its much-criticized exit, Washington has been attempting to prevent the remaining signatories from abiding by their commitments and thus kill the historic agreement, which is widely viewed as a fruit of international diplomacy.