On September 4, 2025, Auditor General Mr Hou Kai met in Beijing with Mr. Magnaisuren Sandag, Auditor General of Mongolia, who is in China for the 9th Meeting of INTOSAI Working Group on Big Data. The two heads of SAIs signed a Memorandum of Understanding to enhance bilateral cooperation.

Mr Hou Kai and Mr. Magnaisuren Sandag also shared experience in strengthening the professional competencies of auditors.