Boart Longyear LTD Sample Contracts

BOART LONGYEAR MANAGEMENT PTY LIMITED, as Issuer, the Guarantors party hereto, and FOURTH SUPPLEMENTAL INDENTURE Dated as of [ ], 2017 FOURTH SUPPLEMENTAL INDENTURE

Fourth Supplemental Indenture • May 15th, 2017 • Boart Longyear LTD • New York

• Contract Type
  Fourth Supplemental Indenture
• Filed
  May 15th, 2017
• Company
  Boart Longyear LTD
• Jurisdiction
  New York

FOURTH SUPPLEMENTAL INDENTURE, dated as of [ ], 2017 (this “Fourth Supplemental Indenture”), among BOART LONGYEAR MANAGEMENT PTY LIMITED, a corporation incorporated under the laws of the Commonwealth of Australia (the “Issuer”), the Guarantors and U.S. BANK NATIONAL ASSOCIATION, as trustee (the “Trustee”). Terms used herein which are defined in the Indenture (as hereinafter defined) shall have the respective meanings assigned to them in the Indenture.

BOART LONGYEAR MANAGEMENT PTY LIMITED, as Issuer, the Guarantors party hereto, and FIRST SUPPLEMENTAL INDENTURE Dated as of June 14, 2013 7% Senior Notes Due 2021 FIRST SUPPLEMENTAL INDENTURE

First Supplemental Indenture • May 15th, 2017 • Boart Longyear LTD • New York

• Contract Type
  First Supplemental Indenture
• Filed
  May 15th, 2017
• Company
  Boart Longyear LTD
• Jurisdiction
  New York

FIRST SUPPLEMENTAL INDENTURE, dated as of June 14, 2013, among BOART LONGYEAR MANAGEMENT PTY LIMITED, a corporation incorporated under the laws of the Commonwealth of Australia (the “issuer”), the New Subsidiary Guarantors (as hereinafter defined), and U.S. BANK NATIONAL ASSOCIATION, as trustee (the “Trustee”). Terms used herein which are defined in the Indenture (as hereinafter defined) shall have the respective meanings assigned to them in the Indenture.

BOART LONGYEAR MANAGEMENT PTY LIMITED, as Issuer, the Guarantors party hereto, and SECOND SUPPLEMENTAL INDENTURE Dated as of September 27, 2013 7% Senior Notes Due 2021 SECOND SUPPLEMENTAL INDENTURE

Second Supplemental Indenture • May 15th, 2017 • Boart Longyear LTD • New York

• Contract Type
  Second Supplemental Indenture
• Filed
  May 15th, 2017
• Company
  Boart Longyear LTD
• Jurisdiction
  New York

SECOND SUPPLEMENTAL INDENTURE, dated as of September 27, 2013, among BOART LONGYEAR MANAGEMENT PTY LIMITED, a corporation incorporated under the laws of the Commonwealth of Australia (the “Issuer”), the New Subsidiary Guarantors (as hereinafter defined), and U.S. BANK NATIONAL ASSOCIATION, as trustee (the “Trustee”). Terms used herein which are defined in the Indenture (as hereinafter defined) shall have the respective meanings assigned to them in the Indenture.

THIRD SUPPLEMENTAL INDENTURE Dated as of April 2, 2017 Among Boart Longyear Management Pty Limited, as Issuer, THE GUARANTORS PARTY HERETO, as Guarantors, and as Trustee 7% SENIOR NOTES DUE 2021

Third Supplemental Indenture • May 15th, 2017 • Boart Longyear LTD • New York

• Contract Type
  Third Supplemental Indenture
• Filed
  May 15th, 2017
• Company
  Boart Longyear LTD
• Jurisdiction
  New York

THIS THIRD SUPPLEMENTAL INDENTURE (“Supplemental Indenture”), dated as of April 2, 2017 (the “Amendment Date”), among Boart Longyear Management Pty Limited, a company formed under the laws of the Commonwealth of Australia (the “Issuer”), the guarantors listed on the signature pages hereto (the “Guarantors”) and U.S. Bank National Association, as Trustee (the “Trustee”) to the indenture dated as of March 28, 2011, as supplemented by the first supplemental indenture dated as of June 14, 2013 and as supplemented by the second supplemental indenture dated as of September 27, 2013 (the “Existing Indenture”, and the Existing Indenture as amended and supplemented by this Supplemental Indenture the “Indenture”).