Knife River Corp

Board of Directors: Item 1. Election of Directors

Additional Information - Majority Voting

A majority of votes cast is required to elect a director in an uncontested election. A majority of votes cast means the number of shares voted “for” a director’s election exceeds 50% of the number of votes cast with respect to that director’s election. “Abstentions” and “broker non-votes” do not count as votes cast “for” or “against” the director’s election. In a contested election, which is an election in which the number of nominees for director exceeds the number of directors to be elected and which we do not anticipate, directors will be elected by a plurality of the votes cast.

Unless you specify otherwise when you submit your proxy, the proxies will vote your shares of common stock “for” all directors nominated by the board. If a nominee becomes unavailable for any reason or if a vacancy should occur before the election, which we do not anticipate, the proxies will vote your shares in their discretion for another person nominated by the board.

Our policy on majority voting for directors contained in our corporate governance guidelines requires any proposed nominee for re-election as a director to tender to the board, prior to nomination, his or her irrevocable resignation from the board that will be effective, in an uncontested election of directors only, upon:

•Receipt of a greater number of votes “against” than votes “for” election at our annual meeting of stockholders; and

•Acceptance of such resignation by the board.

Following certification of the stockholder vote, the nominating and governance committee will promptly recommend to the board whether or not to accept the tendered resignation. The board will act on the nominating and governance committee’s recommendation no later than 90 days following the date of the annual meeting. Following the board’s decision, we will promptly publicly disclose the board’s decision in a Form 8-K filed with the SEC. To the extent that one or more directors’ resignations are accepted by the board, the nominating and governance committee will recommend to the board whether to fill such vacancy or vacancies or to reduce the size of the board.