S.D. Codified Laws § 47-16-15
Current with legislation signed by the governor on or before 3/6/2024
In the absence of written notice that a person has been designated to represent an entity member of a cooperative, the member may be represented by any of its principal officers. Unless the bylaws provide otherwise, an individual may represent more than one entity member, and may also vote as an individual if the individual is a member.
SDCL 47-16-15