Anyone who has a concern about Quanta’s conduct, accounting, financial reporting, internal controls or auditing matters may communicate that concern through Quanta’s Ethics HelpLine. Such communications may be confidential or anonymous, and may be emailed (may not be anonymous), submitted in writing or reported by phone as follows:

Shareholders and other interested parties may communicate with the Board through Quanta’s Corporate Secretary at the following address:

Corporate Secretary
c/o General Counsel’s Office
Quanta Services, Inc.
2800 Post Oak Blvd, Suite 2600
Houston, Texas 77056