If the carrier as assignee recovers in an action:
At the trial the fact of settlement shall be prima facie evidence that the injury was proximately caused by a breach of duty owed to the employee or a warranty given by the third party.
The carrier shall not unreasonably refuse to approve a proposed compromise settlement with the third party. The injured employee or his dependents may make written application to the Workers' Compensation Commission for a finding that a proposed compromise settlement with the third party is reasonable and fair to all parties. If the Workers' Compensation Commission, after such inquiry as it deems necessary, and after hearing if demanded by either the carrier, the injured employee or his dependents, finds the proposed settlement reasonable and fair, it shall be deemed to have been approved by the carrier.
Notwithstanding other provisions of this item, where an employee or his representative enters into a settlement with or obtains a judgment upon trial from a third party in an amount less than the amount of the employee's estimated total damages, the commission may reduce the amount of the carrier's lien on the proceeds of such settlement in the proportion that such settlement or judgment bears to the commission's evaluation of the employee's total cognizable damages at law. Any such reduction shall be based on a determination by the commission that such reduction would be equitable to all parties concerned and serve the interests of justice.
As soon as the Workers' Compensation Commission has fixed the amount to be held by the carrier in this fund, or determined that no future compensation will be due, the excess of the third party recovery over the total amount necessary for payment of necessary expenses, satisfaction of the carrier's lien, and payment of the share of any person not a beneficiary under this title and creation of such fund, if any, shall be paid forthwith to the beneficiary but shall continue to constitute a credit against future compensation benefits for the same injury or death as to any compensation liability that may exist after the fund has been exhausted.
S.C. Code § 42-1-560