Minn. Stat. § 304A.102
Subd. 1. By amendment.
In accordance with the procedures stated in chapter 302A and with approval by the minimum status vote, an existing corporation formed under chapter 302A may elect to become a public benefit corporation under this chapter by amending its articles to meet the requirements of section 304A.101.
Subd. 2. By merger, exchange, conversion, or transfer.
(a) This subdivision applies if:
Subd. 3. Rights of dissenting shareholders.
A shareholder of a corporation or the member of a limited liability company may dissent from, and obtain payment for the fair value of the shareholder's shares or the member's membership interests pursuant to sections 302A.471 and 302A.473, in the event of an election of public benefit corporation status pursuant to this section.