KELLER & COMPANY, INC. FINANCIAL INSTITUTION CONSULTANTS

Exhibit 99.1

XXXXXX & COMPANY, INC.

FINANCIAL INSTITUTION CONSULTANTS

000 XXXXX XXXXX XXXXX

SUITE 524

DUBLIN. OHIO 43017

(000) 000-0000 (000) 000-0000 FAX

July 17, 2018

The Board of Directors

PyraMax Bank, FSB

0000 Xxxx Xxxxxxxx Xxxxxx

Greenfield, Wisconsin 53220

Re: Conversion Valuation Agreement

Attn: Xxxxxxx Xxxx

Xxxxxx & Company, Inc. (hereinafter referred to as XXXXXX) hereby proposes to prepare an independent conversion appraisal of PyraMax Bank, FSB (hereinafter referred to as “PyraMax”), relating to the mutual to stock conversion of PyraMax and minority stock offering (“the “Stock Offering”) of PyraMax’s mid-tier holding company. XXXXXX will provide a pro forma valuation of the market value of the shares of PyraMax’s mid-tier holding company to be sold in connection with the minority stock offering.

XXXXXX is a national financial consulting firm that primarily serves the financial institution industry. XXXXXX is experienced in evaluating and appraising thrift institutions and thrift institution holding companies. XXXXXX is an experienced conversion appraiser for filings with the Office of the Comptroller of the Currency (“OCC”), the Federal Deposit Insurance Corporation (“FDIC”) and the Federal Reserve Board (“FRB”), and is also approved by the Internal Revenue Service as an expert in bank and thrift stock valuations. Xxxxxx has completed conversion appraisals related to standard conversions, mutual holding company stock offerings and conversions involving foundations.

XXXXXX agrees to prepare the conversion appraisal in the format required by the FRB in a timely manner for prompt filing with the FRB. XXXXXX will provide any additional information as requested and will complete appraisal updates in accordance with regulatory requirements and based on market conditions. Xxxxxx will also complete the prospectus tables relating to the valuation level and offering.

The appraisal report will provide a detailed description of PyraMax, including its financial condition, operating performance, asset quality, rate sensitivity position, liquidity level and management qualifications. The appraisal will include a description of PyraMax’s market area, including both economic and demographic characteristics and trends. An analysis of other publicly-traded thrift institutions will be performed to determine a comparable group, and adjustments to the appraised value will be made based on a comparison of PyraMax with the comparable group and recognizing the risk related to an initial public offering.

In completing its appraisal, XXXXXX will rely upon the information in the Subscription and Community Offering Prospectus, including the audited and unaudited financial statements. Among other factors, XXXXXX will also consider the following : the present and projected operating results and financial condition of PyraMax; the economic and demographic conditions in PyraMax’s existing marketing area; pertinent historical financial and other information relating to PyraMax; a comparative evaluation of the operating and financial statistics of PyraMax with those of other thrift institutions; the proposed price per share; the aggregate size of the offering of common stock; the impact of the stock offering on PyraMax’s capital position and earnings potential; PyraMax’s proposed initial dividend, if any; and the trading market for securities of comparable institutions and general conditions in the market for such securities. In preparing the appraisal, XXXXXX will rely solely upon, and assume the accuracy and completeness of, financial and statistical information provided by PyraMax, and will not independently value the assets or liabilities of PyraMax in order to prepare the appraisal.

Upon completion of the conversion appraisal, XXXXXX will make a presentation to the board of directors of PyraMax to review the content of the appraisal, the format and the assumptions. A written presentation will be provided to each board member as a part of the overall presentation.

For its services in making this appraisal, XXXXXX’x fee will be $39,000 including one final valuation update, plus out-of-pocket expenses not to exceed $1,500, for travel, copying, binding, etc. Any additional valuation updates, including the final update, will not be subject to an additional fee. Upon the acceptance of this proposal, XXXXXX shall be paid a retainer of $5,000 to be applied to the total appraisal fee of $39,000, the balance of which will be payable at the time of the completion of the appraisal. Any appraisal valuation update is not a mandatory requirement but can be requested by regulators. Including such a request by regulators or completed voluntarily in response to changes in the market prices of thrifts, our total fee will be $39,000, including the final valuation update, which will be required.

PyraMax agrees, by the acceptance of this proposal, to indemnify XXXXXX and its employees and affiliates for certain costs and expenses, including reasonable legal fees, in connection with claims or litigation reasonably relating to the appraisal and arising out of any misstatement or untrue statement of a material fact in information supplied to XXXXXX by PyraMax or by an intentional omission by PyraMax to state a material fact in the information, provided, however, PyraMax shall not be obligated to indemnify XXXXXX for any loss, cost or expense attributable to the negligence, bad faith or willful misconduct of XXXXXX or its employees or agents or to the extent such loss, cost or expense was due to a breach of this agreement by XXXXXX.

XXXXXX agrees to indemnify PyraMax and its employees and affiliates for certain costs and expenses, including reasonable legal fees, in connection with claims or litigation relating to or based upon the negligence, bad faith or willful misconduct of XXXXXX or its employees or affiliates.

This proposal will be considered accepted upon the execution of the two enclosed copies of this agreement and the return of one executed copy to XXXXXX, accompanied by the specified retainer.