Attachment: 8-K


Document

Exhibit 99.1

May 10, 2022

To the Board of Directors of Powell Industries, Inc.

I hereby resign from the Board of Directors of Powell Industries, Inc. and all committees thereof effective immediately.

//s// Perry L. Elders

Perry L. Elders


powl-20220510.xsd
Attachment: XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT


powl-20220510_lab.xml
Attachment: XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT


powl-20220510_pre.xml
Attachment: XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT