Wang Jun (L), Administrator of the State Administration of Taxation of China, and Angel Gurria, Secretary-General of the Organization for Economic Co-operation and Development (OECD), attend the signing ceremony at the headquarters of OECD in Paris, France, Aug. 27, 2013. China on Tuesday signed the Multilateral Convention on Mutual Administrative Assistance in Tax Matters, participating in global efforts to combat tax avoidance and evasion by cooperating with other states in the assessment and collection of taxes. (Xinhua/Gao Jing)