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): March 4, 2020

Trinseo S.A.
(Exact name of registrant as specified in its charter)

					
Luxembourg		001-36473		N/A	
(State or other jurisdiction
of incorporation or organization)		(Commission
File Number)		(I.R.S. Employer
Identification Number)	

1000 Chesterbrook Boulevard, Suite 300,
Berwyn, Pennsylvania 19312
(Address of principal executive offices, including zip code)

(610) 240-3200
(Telephone number, including area code)

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

Title of Each Class	Trading symbol(s)	Name of Each Exchange on which registered	
Ordinary Shares, par value $0.01 per share	TSE	New York Stock Exchange	

ITEM 8.01 Other Items.

Trinseo S.A. (the “Company”) will hold its Annual General Meeting of Shareholders on June 9, 2020 (the “Annual Meeting”) in the Grand Duchy of Luxembourg for shareholders of record as of April 20, 2020.

Each shareholder who plans to attend the Company’s Annual Meeting in person is required to notify the Company in accordance with the Company’s amended and restated articles of association. Any such notices to attend the Annual Meeting should be directed to:

Attn: Corporate Secretary – Notification to Attend Annual Meeting
Trinseo S.A.
1000 Chesterbrook Boulevard, Suite 300
Berwyn, Pennsylvania 19312

SIGNATURE
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.

	TRINSEO S.A.	

	By:	/s/ Angelo N. Chaclas	
	Name:	Angelo N. Chaclas	
	Title:	Senior Vice President, Chief Legal Officer,
Chief Compliance Officer & Corporate Secretary	
			
Date: March 4, 2020