Wash. Rev. Code § 23B.11A.030
(1) By complying with this chapter:
(2) The plan of share exchange must include:
(5) A plan of share exchange may be amended only with the consent of each party to the share exchange, except as provided in the plan of share exchange. A domestic corporation may approve an amendment to a plan of share exchange:
(b) In the manner provided in the plan of share exchange, except that shareholders that were entitled to vote on or consent to approval of the plan of share exchange are entitled to vote on or consent to any amendment of the plan of share exchange that will change:
[ 2024 c 22 s 3.]