S.C. Code Ann. § 62-7-708: Compensation of trustee.

(a) If the terms of a trust do not specify the trustee's compensation, a trustee is entitled to compensation that is reasonable under the circumstances.

(b) If the terms of a trust specify the trustee's compensation, the trustee is entitled to be compensated as specified, but the court may allow more or less compensation if:

(1) the duties of the trustee are substantially different from those contemplated when the trust was created; or

(2) the compensation specified by the terms of the trust would be unreasonably low or high.