S.C. Code Ann. § 11-35-410
Procurement information shall be a public record to the extent required by Chapter 4 of Title 30 (The Freedom of Information Act) with the exception that commercial or financial information obtained in response to a "Request for Proposals" or any type of bid solicitation which is privileged and confidential need not be disclosed.
(4) biographical data on key employees of the bidder.
Evaluative documents predecisional in nature such as inter- or intra-agency memoranda containing technical evaluations and recommendations are exempted so long as the contract award does not expressly adopt or incorporate the inter- or intra-agency memoranda reflecting the predecisional deliberations.
At the time of submitting a proposal or bid, the party supplying a bid or proposal must identify any portions of the proposal or bid considered by the party to be a trade secret and thus eligible to be withheld from public inspection and copying. If the information identified by the party is a trade secret, as defined in Section 30-4-40(a)(1), it may be withheld from public inspection and copying. If the party fails to identify information as a trade secret, the entire bid or proposal is to be made available for public inspection and copying.
Privileged and confidential information is information in specific detail not customarily released to the general public, the release of which might cause harm to the competitive position of the party supplying the information. Examples of this type of information would include: