S.C. Code Ann. § 33-36-420: Annual meetings.

(A) An annual meeting of the membership of a corporation not-for-profit must be held at times provided in the bylaws. A special meeting of the membership may be called by a majority of its governing board, by not less than ten percent of the membership, or by the principal officer of its governing board.

(B) Meetings must be held at places provided in the bylaws and, in the absence of a provision, the principal office of the corporation is the location of all meetings.

(C) Except as otherwise provided, written or printed notice stating the time and place of each meeting of members and, in the case of a special meeting, the purpose for which the meeting is called, must be given to each member, personally or by mail, not less than ten nor more than twenty-five days before the date of the meeting.