S.C. Code § 8-13-1331
Notwithstanding Section 8-13-1332(3), a corporation or committee of a corporation may solicit the shareholders and executive or administrative personnel of the corporation and its subsidiaries, branches, divisions, affiliates and their families. For purposes of this section, all committees established, financed, maintained, or controlled by the same corporation, including any direct or indirect parent, subsidiary, branch, or division thereof, are affiliated. With respect to a corporation or committee of a corporation that solicits contributions pursuant to this section, contributions made or received by affiliated committees are considered to be made or received by a single committee for purposes of contribution limits in Sections 8-13-1314 and 8-13-1322. A corporation or committee of a corporation that solicits contributions pursuant to this section must certify in the manner prescribed by Section 8-13-1308(H) that contributions made or received by the committee and its affiliated committees, if any, have complied with contribution limits in Sections 8-13-1314 and 8-13-1322 as if the committee and its affiliated committees, if any, were a single committee.
S.C. Code § 8-13-1331