A governing instrument or an agreement of merger or consolidation may provide that contractual appraisal rights with respect to a beneficial interest or another interest in a business trust shall be available for any class or group of beneficial owners or beneficial interests in connection with any amendment of a governing instrument, any merger or consolidation in which the business trust is a constituent party to the merger or consolidation or the sale of all or substantially all of the business trust's assets.
SDCL 47-14A-71