Knife River spin-off from MDU Resources set for May 31; 1-for-4 ratio

Knife River Corp

Registration Statement on Form 10 declared effective May 10; final Information Statement dated May 12.
One share of KNF common stock distributed for every four shares of MDU common held on May 22 record date.
Distribution expected at 11:59 p.m. ET on May 31; when-issued trading (KNF WI) begins May 25.
MDU Resources will distribute approximately 90% of outstanding Knife River shares to its stockholders.

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