S.D. Codified Laws § 49-45-9.1

If the commission determines, because a corporate surety company becomes insolvent or ceases to write grain buyer bonds in this state, that a bond in the sum required by § 49-45-9 cannot be executed, or if a grain buyer is in the process of chapter 11 reorganization and a bond cannot be obtained, the commission may authorize the filing of other financial documents in lieu of a corporate surety bond.