Accredited Body: DQS Inc., 1130 West Lake Cook Road, Suite 340, Buffalo Grove, IL 60089 USA 1 / 2

This is to certify that

Powerex Inc. 173 Pavilion Lane Youngwood, PA 15697 United States of America

with the organizational units/sites as listed in the annex

has implemented and maintains a Quality Management System.

Scope: The design and manufacture of high-power semiconductor products, including discrete devices, modules, and assemblies; also, sales, marketing, strategy and logistics support for Mitsubishi Power Semiconductor devices in the Americas.

Through an audit, documented in a report, it was verified that the management system fulfills the requirements of the following standard:

ISO 9001 : 2008

Certificate registration no.

Date of original certification

Date of certification

Valid until

10001573 QM08

1998-02-02

2016-10-26

2018-09-14

DQS Inc.

Ganesh Rao Managing Director

Annex to certificate Registration No. 10001573 QM08

Powerex Inc. 173 Pavilion Lane Youngwood, PA 15697 United States of America

This annex (edition: 2016-10-26) is only valid in connection with the above-mentioned certificate. 2 / 2

Location Scope

10001573 Powerex Inc. 173 Pavilion Lane Youngwood, PA 15697 United States of America

The design and manufacture of high-power semiconductor products, including discrete devices, modules, and assemblies; also, sales, marketing, strategy and logistics for Mitsubishi Power Semiconductor devices in the Americas.

10004688 Powerex Inc. Buncher Industrial Park Avenue A, Bldg. 103, Suite 1 Youngwood, PA 15697 United States of America

Warehouse, Shipping, and Receiving.