From April 9 to April 11, 2025, at the joint invitation of Kazan, Russia and Tehran, Iran, Sun Xueqing, Secretary-General of the Chinese People's Association for Friendship with Foreign Countries (CPAFFC), led a delegation to Tehran, Iran to attend the second working meeting of the BRICS+ Association of Cities and Municipalities and spoke at the meeting. Representatives of cities and local government organizations from six countries, including Russia, China, Brazil, South Africa, Iran and Indonesia, participated in the conference, either online or in person.

During the meeting, Sun Xueqing held talks with Alireza Zakani, Mayor of Tehran, Ilsur Metshin, Chairman of the BRICS+ Association of Cities and Municipalities and Mayor of Kazan, Bheki Stofile, President of the South African Local Government Association (SALGA), and Eduardo Tadeu Pereira, Executive Director of the Brazilian Association of Municipalities (ABM). They engaged in discussions on strengthening mutual ties, developing the BRICS+ Association of Cities and Municipalities, and deepening the pragmatic cooperation between BRICS+ local governments and people-to-people friendship.

The meeting featured in-depth discussions on the association's charter, membership admission and withdrawal procedures, and membership fees. Participants were briefed on the association's development vision and proposed activity plans, while a key resolution was adopted to convene its first General Assembly in Brazil this May.