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): August 19, 2025

SYLVAMO CORPORATION

(Exact name of registrant as specified in its charter)

Commission file number 001-40718

Delaware

86-2596371

(State or other jurisdiction

of incorporation)

(I.R.S. Employer

Identification No.)


6077 Primacy Parkway, Memphis, Tennessee		38119
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s telephone number, including area code: (901) 519-8000

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):

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

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

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

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

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading

Symbol(s)

Name of each exchange

on which registered

Common Stock, $1 per share par value

SLVM

New York Stock Exchange

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 ☐

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. ☐

Item 5.02

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On August 19, 2025, Stan Askren provided notice of his intent to resign from the Board of Directors (the “Board”) of Sylvamo Corporation for health reasons, effective September 1, 2025. His resignation is not due to any disagreement with or concerning Sylvamo. The Board expresses its appreciation to Mr. Askren for his service and contributions as a Board member since our spinoff in 2021.

Item 9.01

Financial Statements and Exhibits.


Exhibit Number		Description

104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

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.

Date: August 22, 2025

Sylvamo Corporation

/s/ Matthew Barron

Matthew Barron

Senior Vice President and Chief Administrative and Legal Officer

Sylvamo Corp 8-K