0001193125-21-280711 Sample Contracts

QUANTA SERVICES, INC., as Issuer and as Trustee FOURTH SUPPLEMENTAL INDENTURE Dated as of September 23, 2021 Supplemental to Indenture dated as of September 22, 2020

Fourth Supplemental Indenture • September 23rd, 2021 • Quanta Services, Inc. • Electrical work • New York

• Contract Type
  Fourth Supplemental Indenture
• Filed
  September 23rd, 2021
• Company
  Quanta Services, Inc.
• Industry
  Electrical work
• Jurisdiction
  New York

FOURTH SUPPLEMENTAL INDENTURE dated as of September 23, 2021 (this “Fourth Supplemental Indenture”), made and entered into by and between Quanta Services, Inc., a Delaware corporation, having its principal office at 2800 Post Oak Blvd., Suite 2600, Houston, Texas 77056 (the “Company”), and U.S. Bank National Association, a national banking association, as Trustee (the “Trustee”) under the indenture of the Company dated as of September 22, 2020 (the “Indenture”).

QUANTA SERVICES, INC., as Issuer and as Trustee THIRD SUPPLEMENTAL INDENTURE Dated as of September 23, 2021 Supplemental to Indenture dated as of September 22, 2020

Third Supplemental Indenture • September 23rd, 2021 • Quanta Services, Inc. • Electrical work • New York

• Contract Type
  Third Supplemental Indenture
• Filed
  September 23rd, 2021
• Company
  Quanta Services, Inc.
• Industry
  Electrical work
• Jurisdiction
  New York

THIRD SUPPLEMENTAL INDENTURE dated as of September 23, 2021 (this “Third Supplemental Indenture”), made and entered into by and between Quanta Services, Inc., a Delaware corporation, having its principal office at 2800 Post Oak Blvd., Suite 2600, Houston, Texas 77056 (the “Company”), and U.S. Bank National Association, a national banking association, as Trustee (the “Trustee”) under the indenture of the Company dated as of September 22, 2020 (the “Indenture”).

QUANTA SERVICES, INC., as Issuer and as Trustee SECOND SUPPLEMENTAL INDENTURE Dated as of September 23, 2021 Supplemental to Indenture dated as of September 22, 2020

Second Supplemental Indenture • September 23rd, 2021 • Quanta Services, Inc. • Electrical work • New York

• Contract Type
  Second Supplemental Indenture
• Filed
  September 23rd, 2021
• Company
  Quanta Services, Inc.
• Industry
  Electrical work
• Jurisdiction
  New York

SECOND SUPPLEMENTAL INDENTURE dated as of September 23, 2021 (this “Second Supplemental Indenture”), made and entered into by and between Quanta Services, Inc., a Delaware corporation, having its principal office at 2800 Post Oak Blvd., Suite 2600, Houston, Texas 77056 (the “Company”), and U.S. Bank National Association, a national banking association, as Trustee (the “Trustee”) under the indenture of the Company dated as of September 22, 2020 (the “Indenture”).