Letter Agreement dated December 13, 2019 between Dennis L. Klaeser and TCF Financial Corporation

Supplement to Employment Agreement dated July 1, 2018 by and among Chemical Financial Corporation, Chemical Bank and Dennis Klaeser (the “Employment Agreement”)

Letter Effective Date. The terms of this letter shall become effective on the date it is signed by both parties (the “Letter Effective Date”).

Position; Duties. Executive shall continue to serve as Chief Financial Officer (his principal position), and (b) in such positions with Affiliates as are reasonably requested by TCF, provided that the duties of such positions are consistent with Executive’s responsibilities in Executive’s principal position, which duties in the aggregate shall constitute Executive’s employment (“Employment”).

Compensation. Executive shall continue to receive the compensation and benefits set forth in Section 3 of the Employment Agreement, specifically including his annual incentive bonus for 2019 (and a pro rata bonus for 2020) and the equity awards to be granted in 2020, each at a level not less than the target levels set forth in the Employment Agreement.

Termination Without Cause. This letter confirms that the Merger constituted a Change in Control under the terms of the Employment Agreement. Executive shall remain in his Employment through October 1, 2020 (the “Termination Date”), at which time, and not until such time (unless Executive’s Employment is earlier terminated for Cause or due to death or Disability), Executive will automatically incur a Termination Without Cause (and is hereby notified thereof) and be entitled to the Change in Control Severance Pay and other benefits set forth in the Employment Agreement, subject to the conditions described in the Employment Agreement. In addition to the foregoing, any outstanding equity awards as of the Termination Date not addressed by the Employment Agreement, including all post-Change in Control grants, shall fully vest as of the Termination Date.

Consulting Agreement. Executive and TCF agree that it is desirable that Executive serve as a consultant to TCF for a period of two years following the Termination Date (the “Consulting Period”), and that TCF and Executive shall negotiate in good faith regarding the terms of a Consulting Agreement that shall provide that Executive shall make himself available to assist TCF on an exclusive basis on such corporate strategy projects as are specified by the Chief Executive Officer.

Miscellaneous. Except as expressly amended or supplemented hereby, all terms, provisions, conditions and covenants contained in the Employment Agreement are not modified by this letter and continue in full force and effect as originally written.