S.D. Codified Laws § 58-5C-3 (2026)
All domestic corporations, organized for the purpose of transacting such insurance business under the provisions of this chapter, shall incorporate under the provisions of chapter 58-5, and be regulated as mutual insurers; provided, the provisions of this chapter shall govern where in conflict with other laws or parts of laws.
Source: SL 1977, ch 405 , § 3.