UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 21, 2019

Chemical Financial Corporation

(Exact Name of Registrant as

Specified in its Charter)

Michigan (State or Other Jurisdiction of Incorporation) 000-08185 (Commission File Number) 38-2022454 (IRS Employer Identification No.)

333 W. Fort Street, Suite 1800 Detroit, Michigan (Address of Principal Executive Offices) 48226 (Zip Code)

Registrant's telephone number, including area code:  (800) 867-9757

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock	CHFC	The NASDAQ Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company    o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Item 8.01 Other Events.

In connection with the previously announced proposed merger of Chemical Financial Corporation (“Chemical”) and TCF Financial Corporation (“TCF”), the Office of the Comptroller of the Currency has issued its approval of the merger of TCF National Bank and Chemical Bank. Completion of the merger of Chemical and TCF remains subject to future receipt of regulatory approval from the Board of Governors of the Federal Reserve System, as well as satisfaction of customary closing conditions, and is currently expected to be completed in the third quarter or early fourth quarter of 2019.

Cautionary Note Regarding Forward-Looking Statements

Statements included in this report, which are not historical in nature are intended to be, and hereby are identified as, forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as “will,” “may,” “anticipate,” “create,” “plan,” “expect,” “should,” and “could” and variations of such words and similar expressions are intended to identify such forward-looking statements. Forward-looking statements are subject to risks, uncertainties and assumptions that are difficult to predict with regard to timing, extent, likelihood and degree of occurrence, which could cause actual results to differ materially from anticipated results. Such risks, uncertainties and assumptions, include, among others, the following:

• the failure to obtain the remaining requisite regulatory approvals when expected or at all (and the risk that such approvals may result in the imposition of conditions that could adversely affect the combined company or the expected benefits of the transaction);

• the occurrence of any event, change or other circumstances that could give rise to the right of one or both of the parties to terminate the merger agreement; and

• the outcome of any legal proceedings that may be instituted against Chemical or TCF.

Additional factors that could cause results to differ materially from those described above can be found in the risk factors described in Item 1A of each of Chemical’s and TCF’s Annual Report on Form 10-K filed with the SEC for the year ended December 31, 2018 and in the Joint Proxy Statement/Prospectus regarding the proposed merger that was filed with the SEC on May 3, 2019 pursuant to Rule 424(b)(3) by Chemical and on Schedule 14A by TCF. Chemical and TCF disclaim any obligation to update or revise any forward-looking statements contained in this report, which speak only as of the date hereof, whether as a result of new information, future events or otherwise, except as required by law.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Dated:	June 21, 2019	CHEMICAL FINANCIAL CORPORATION (Registrant)
		/s/ Dennis L. Klaeser
		Dennis L. Klaeser      Executive Vice President and Chief Financial      Officer