S.C. Code § 29-15-30
Any person to whom a debt is due for labor performed or furnished or for materials furnished and actually used in the construction, alteration or repair of any railroad by virtue of an agreement with or by consent of (a) the owner or person controlling and operating it, (b) any person having authority from or rightfully acting for such owner or person in procuring or furnishing such labor or materials or (c) any person rendering services for such railroad company shall have a lien upon such railroad and upon all the interests of such owner or person as aforesaid in such railroad to secure the payment of the debt so due him and the costs which may arise in enforcing such lien under the provisions of Chapter 5 of this Title. Such lien shall be subject to all the provisions and be enforced in the same manner as provided for in said Chapter 5 of this Title.
S.C. Code § 29-15-30