S.D. Codified Laws § 47-21-68
Powers of cooperative--Joining other cooperatives
A cooperative may become a member of other cooperatives, corporations, or organizations engaged in the purposes as set forth in § 47-21-2 , and may own stock therein.
Source: SL 1947, ch 33, § 4; SDC Supp 1960, § 11.2204 (10); SL 1989, ch 392, § 2; SL 1994, ch 349, § 4.