S.C. Code Ann. § 38-21-125
(A) For purposes of this section:
(B)
(2) This section does not apply to:
(e) an acquisition if, as an immediate result of the acquisition:
(g) an acquisition of an insurer whose domiciliary commissioner affirmatively finds that:
(C)
(D)
(2) In determining whether a proposed acquisition violates the competitive standard of item (1), the director or his designee shall consider the following:
(a) An acquisition covered under subsection (B) involving two or more insurers competing in the same market is prima facie evidence of a violation of the competitive standards:
(i) if the market is highly concentrated and the involved insurers possess the following shares of the market:
Insurer A Insurer B
4% 4% or more
10% 2% or more
15% 1% or more
(ii) if the market is not highly concentrated and the involved insurers possess the following shares of the market:
Insurer A Insurer B
5% 5% or more
10% 4% or more
15% 3% or more
19% 1% or more
A highly concentrated market is one of which the share of the four largest insurers is seventy-five percent or more of the market. Percentages not shown in the tables are interpolated proportionately to the percentages that are shown. If more than two insurers are involved, exceeding the total of the two columns in the table is prima facie evidence of violation of the competitive standard in item (1). For the purpose of this item, the insurer with the largest share of the market is Insurer A.
(b) It must be determined whether there is a significant trend toward increased concentration in the market. The trend exists when the aggregate market share of a grouping of the largest insurers in the market, from the two largest to the eight largest, has increased by seven percent or more of the market over time extending from a base year five to ten years before the acquisition up to the time of the acquisition. An acquisition or merger covered under subsection (B) involving two or more insurers competing in the same market is prima facie evidence of a violation of the competitive standard in item (1) if all of the following exist:
(d) For the purpose of this item:
(3) An order must not be entered under subsection (E)(1) if the acquisition will:
(E)
(1)
(a) If an acquisition violates the standards of this section, the director or his designee may enter an order:
(b) An order must not be entered unless all of the following exist:
(2) A person who violates an order under item (1), while the order is in effect, after notice and hearing, and upon order of the director or his designee, is subject at his discretion to one or more of the following: