S.C. Code § 34-30-150
An amendment to the articles of incorporation of a state savings bank, which shall have been adopted and recommended by the board of directors of the state savings bank, must be made at an annual or special meeting of the state savings bank, held in accordance with Sections 34-30-1060 and 34-30-1070, by a majority of votes or shares cast by members or stockholders present in person or by proxy at the meeting. An amendment must be certified by the appropriate corporate official, submitted to the board for approval or rejection, and if approved, then certified by the board and recorded as provided in Section 34-30-130 for articles of incorporation. The articles of incorporation may provide for a greater quorum or voting requirement for members or stockholders or voting groups of stockholders than is otherwise provided in this chapter.
S.C. Code § 34-30-150