S.D. Codified Laws § 47-1A-1322

If proposed corporate action requiring appraisal rights under § 47-1A-1302 becomes effective, the corporation must deliver a written appraisal notice and form required by subdivision 47-1A-1322.1(1) to all shareholders who satisfied the requirements of § 47-1A-1321. In the case of a merger under §§ 47-1A-1105 to 47-1A-1105.2, inclusive, the parent shall deliver a written appraisal notice and form to all record shareholders who may be entitled to assert appraisal rights.