EX-23.1 2 d630161dex231.htm EX-23.1 EX-23.1

Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

 

  (1)

Registration Statement (Form S-8 No. 033-63739) pertaining to the II-VI Incorporated 1994 Nonemployee Directors Stock Option Plan,

 

  (2)

Registration Statement (Form S-8 No. 333-12737) pertaining to the II-VI Incorporated Deferred Compensation Plan,

 

  (3)

Registration Statement (Form S-8 No. 333-67121) pertaining to the II-VI Incorporated Stock Option Plan of 1997,

 

  (4)

Registration Statement (Form S-8 No. 333-129675) pertaining to the II-VI Incorporated 2005 Omnibus Incentive Plan,

 

  (5)

Registration Statement (Form S-8 No. 333-164827) pertaining to the II-VI Incorporated 2009 Omnibus Incentive Plan,

 

  (6)

Registration Statement (Form S-8 No. 333-74682) pertaining to the II-VI Incorporated Stock Option Plan of 2001,

 

  (7)

Registration Statement (Form S-8 No. 333-184805) pertaining to the II-VI Incorporated 2012 Omnibus Incentive Plan,

 

  (8)

Registration Statement (Form S-8 No. 333-199855) pertaining to the Amended and Restated II-VI Incorporated 2012 Omnibus Incentive Plan,

 

  (9)

Registration Statement (Form S-8 No. 333-228367) pertaining to the II-VI Incorporated 2018 Employee Stock Purchase Plan, and

 

  (10)

Registration Statement (Form S-8 No. 333-228368) pertaining to the II-VI Incorporated 2018 Omnibus Incentive Plan;

of our report dated August 28, 2018 (except for Notes 6, 12 and 21, and the effects of the adoption of ASU 2017-07, Compensation-Retirement Benefits (Topic 715), as reflected in Note 1 to the consolidated financial statements, as to which the date is December 27, 2018), with respect to the consolidated financial statements and schedule of II-VI Incorporated and Subsidiaries and our report dated August 28, 2018, with respect to the effectiveness of internal control over financial reporting of II-VI Incorporated and Subsidiaries, included in this Current Report (Form 8-K) of II-VI Incorporated.

/s/ Ernst & Young LLP

Pittsburgh, Pennsylvania

December 27, 2018