Explanation:

This is the first time China will be holding the presidency of the UNSC since the special status of Jammu and Kashmir under Article 370 was revoked in August last year. The UNSC follows a system of rotational presidency among its 15 members — five permanent and 10 non-permanent members.
About The United Nations Security Council (UNSC) 

• It is one of the organs of the United Nations and is charged with the maintenance of international peace and security.
• Its powers include the establishment of peacekeeping operations, the establishment of international sanctions, and the authorization of military action through Security Council resolutions; it is the only UN body with the authority to issue binding resolutions to member states.
• Members: The Security Council consists of fifteen members. Russia, the United Kingdom, France, China, and the United States—serve as the body’s five permanent members. These permanent members can veto any substantive Security Council resolution, including those on the admission of new member states or candidates for Secretary-General.
• The Security Council also has 10 non-permanent members, elected on a regional basis to serve two-year terms. The body’s presidency rotates monthly among its members.