The Department of Insurance may receive and shall maintain as confidential any documents or information furnished to the department by the National Association of Insurance Commissioners or regulatory officials of any state, federal agency, or foreign countries which are classified as confidential by that association or state. The Department of Insurance may share documents or information, including confidential documents or information, with the National Association of Insurance Commissioners or regulatory officials of any state, federal agency, or foreign countries if the association, state, federal agency, or foreign country agrees to maintain the same level of confidentiality as is provided under South Carolina law. Documents or information received or exchanged pursuant to this section are not subject to subpoena or subpoena duces tecum in any civil, criminal, or administrative proceeding.