Eligibility. The Committee in its sole discretion will select full-time Executives of the Company and its subsidiaries, who in its opinion, are expected to lead or contribute significantly to achievement of annual or multi-year goals and to develop and execute the long-term strategic objectives of the Company and its subsidiaries.

Eligibility. If a Participant suffers a Disability prior to Termination of Employment, the Participant shall be eligible for a benefit under this Article 5.

Eligibility. If a Participant dies after completing 60 calendar months of Service (without regard to the requirements of [Section 2.04]) but prior to the Participant's Termination of Employment, his or her Beneficiary shall be eligible for a benefit under this Article 6.

Eligibility. An employee of the Company or a Participating Subsidiary who is an Eligible Employee at or prior to the first day of any Option Period may become a participant (a "Participant") as of such date by # at least ten (10) days prior to such date, completing and forwarding a payroll deduction authorization form (the "Authorization") to the Eligible Employee's appropriate payroll location; and/or # at least thirty (30) days prior to the last day of the Option Period, completing and forwarding a lump sum payment form furnished by the Company, accompanied by payment to the Company in the amount of the lump sum, to be credited to the Participant's Purchase Account. The Authorization will direct a regular payroll deduction from the Participant's compensation to be made on each of the Participant's pay dates occurring during each Option Period in which he or she is a Participant.

-2 Eligibility Participation in the retirement contribution for any Plan Year is limited to Eligible Employees hired after December 31, 2005, by Knife River Corporation

-2 Eligibility Participation in the retirement contribution for a Plan Year is limited to individuals who were active participants in one of the following plans as of December 31, 2009:

-2 Eligibility To share in the allocation of any retirement contribution made by JTL for a Plan Year, a Participant must be an Eligible Employee of JTL Unless specifically bargained for, Employees covered by a collective bargaining agreement shall not be eligible to share in this retirement contribution feature Participants who meet the preceding requirements are referred to herein as “[Schedule D3] Participants”

-2 Eligibility To share in the allocation of any retirement contribution made by HC for a Plan Year, a Participant must be an Eligible Employee of HC who was an active participant in the Pension Plan for Bargaining Unit Employees of Hawaiian Cement, Maui Concrete and Aggregate Division as of June 30, 2015 Participants who meet the preceding requirements are referred to herein as “[Schedule D4] Participants”

-2 Eligibility Participation in the retirement contributions for any Plan Year is limited to Eligible Employees of this [Schedule C1] Employers The current and original effective dates for each [Schedule C1] Employer’s retirement contribution feature are listed in the following table

The Plan shall be administered by the Compensation Committee of the Board, or such other Committee, appointed by the Board consisting of three (3) or more members of the Board all of whom are intended to be “non-employee directors” within the meaning of Section 16 of the Exchange Act and the regulations promulgated thereunder and “outside directors” within the contemplation of Section 162(m) of the Code; provided, however, that, if at any time no Compensation Committee or other Committee has been appointed or is eligible to act in the circumstances, the Plan shall be administered by the Board. As used herein, the term “Administrator” means the Board, the Compensation Committee or any of the Board’s other Committees as shall be administering the Plan or any individual delegated authority to act as the Administrator in accordance with this Section 2.