PLEXUS CORP — Regulatory Filings 2017

May 12, 2017

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM SD

Specialized Disclosure Report

PLEXUS CORP.

(Exact name of registrant as specified in its charter)

Wisconsin	001-14423	39-1344447
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

One Plexus Way, Neenah, WI 54957

(Address of principal executive offices) (Zip Code)

Angelo M. Ninivaggi

Senior Vice President, Chief Administrative Officer,

General Counsel and Secretary

(920) 969-6000

(Name and telephone number, including area code,

of the person to contact in connection with this report.)

Check the appropriate box to indicate the rule pursuant to which this form is being filed, and provide the period to which the information in this form applies:

[X] Rule 13p-1 under the Securities Exchange Act (17 CFR 240.13p-1) for the reporting period from January 1 to December 31, 2016 .

Section 1 - Conflict Minerals Disclosure

Item 1.01 Conflict Minerals Disclosure and Report

Conflict Minerals Disclosure

A copy of Plexus Corp.’s Conflict Minerals Report for the reporting period from January 1 to December 31, 2016, is provided as Exhibit 1.01 hereto and is publicly available at http://www.plexus.com/good-business .

Item 1.02 Exhibit

See Item 2.01 of this Form.

Section 2 - Exhibits

Item 2.01 Exhibits

Exhibit 1.01 - Conflict Minerals Report as required by Items 1.01 and 1.02 of this Form.

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 duly authorized undersigned.

PLEXUS CORP.

(Registrant)

By: /s/ Angelo M. Ninivaggi	May 12, 2017
Angelo M. Ninivaggi	(Date)
Senior Vice President, Chief Administrative Officer,
General Counsel and Secretary