legal analysis: shareholders need to be notified 15 days in advance. When convening a shareholders' meeting, all shareholders shall be notified fifteen days before the meeting; However, unless otherwise stipulated in the Articles of Association or agreed by all shareholders. The shareholders' meeting shall make minutes of the decisions on the matters discussed, and the shareholders present at the meeting shall sign the minutes.

Legal basis: Company Law of the People's Republic of China

Article 4 Where a limited liability company establishes a board of directors, the shareholders' meeting shall be convened by the board of directors and presided over by the chairman; If the chairman is unable to perform his duties or fails to perform his duties, he shall be presided over by the vice chairman; If the vice chairman is unable to perform his duties or fails to perform his duties, more than half of the directors shall elect a director to preside over the meeting. Where a limited liability company does not have a board of directors, the shareholders' meeting shall be convened and presided over by the executive director. If the board of directors or the executive director is unable to perform or fails to perform the duties of convening the shareholders' meeting, it shall be convened and presided over by the board of supervisors or the supervisor of the company without the board of supervisors; If the Board of Supervisors or supervisors do not convene and preside over the meeting, shareholders representing more than one-tenth of the voting rights may convene and preside over the meeting by themselves.

article 41 when convening a shareholders' meeting, all shareholders shall be notified fifteen days before the meeting; However, unless otherwise stipulated in the Articles of Association or agreed by all shareholders. The shareholders' meeting shall make minutes of the decisions on the matters discussed, and the shareholders present at the meeting shall sign the minutes.