[ * * ] = certain portions of this agreement have been omitted because the omitted portions are both not material and would likely cause competitive harm if publicly disclosed exhibit 10. 1 nonqualified plan service and expense agreement this agreement is made by and between the undersigned plan representative ( “ you ”, “ your ” ) and the undersigned member company of the principal financial group® ( “ we ”, “ us ”, “ our ” ). you and we are the “ parties ” to this agreement. each of the parties may be referred to separately as a “ party ”. this agreement consists of this page, the following pages, and the attachments, if any. these are all incorporated in, and made a part of, this agreement for all purposes. the parties, by signing this page, agree to all the terms of this agreement. they also agree to be bound by any and all parts of it as if they had signed at the end. each party represents and warrants that it has the authority to enter into this agreement and will be bound by it. each individual signing this agreement represents and warrants that she or he has, individually or together with any other persons signing this agreement on behalf of the same party, the authority to sign this agreement and make it binding on the party for whom that person signs. this agreement sets out the understanding of the parties on the matters covered in the agreement. it supersedes and cancels any and all prior agreements, understandings, or representations between the parties, whether written or oral, relating to these matters. nothing in this agreement amends, modifies, or waives any terms and conditions of any investment. asterisked ( “ * ” ) paragraphs - - paragraphs following headings marked with asterisks will survive the termination of this agreement. we cannot and do not give legal, tax, accounting, or investment advice. nothing set forth in this agreement, related documents that we provide, or any communication with you or any plan entity may be taken or relied on as legal, tax, accounting, or investment advice. you should consult with appropriate counsel or other advisors on all matters pertaining to legal, tax, accounting, investment obligations and requirements. effective date of this agreement : march 1, 2020 cerus corporationprincipal life insurance company principal life insurance ( plan representative ) ( member company of the principal financial group® ) ( plan representative ) ( plan representative ) ( member company