(A) It is unlawful for any banking institution to make any loan or discount on the security of the shares of its own capital stock or to be the purchaser or holder of any such shares unless such security or purchase is necessary to prevent loss upon a debt previously contracted in good faith, unless the purchase is approved by the board, or except as permitted in subsection (B).

(B) Subject to the approval of the board, a South Carolina state-chartered banking association may acquire its own outstanding shares and hold them as treasury stock in the same manner as a corporation pursuant to Title 33.