Browse EX-10 agreements

BIDDER’S PREFERENCE AGREEMENT

THIS BIDDER’S PREFERENCE AGREEMENT, dated effective June 6, 2014 (hereinafter referred to as “Agreement”), regardless of the dates upon which it actually is executed by the parties hereto, is by and among: (a) DONLIN GOLD LLC, a Delaware limited liability corporation whose address is 4720 Business Park Blvd., Suite G-25, Anchorage, Alaska 99503 (hereinafter referred to as “DGLLC”); (b) CALISTA CORPORATION, an Alaskan corporation whose address is 301 Calista Court, Suite A, Anchorage, Alaska 99518 (hereinafter referred to as “Calista”); and (c) THE KUSKOKWIM CORPORATION, an Alaskan corporation whose address is 4300 B Street, Suite 207, Anchorage, Alaska 99503 (hereinafter referred to as “TKC”).

RECITALS

A. DGLLC, formerly known as Donlin Creek LLC, (“DCLLC”) and Calista are parties to a Restated Exploration and Lode Mining Lease, dated effective May 1, 1995 (hereinafter referred to as the “Mining Lease”).

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REVISED AND RESTATED

SURFACE USE AGREEMENT*

effective June 6, 2014

between

THE KUSKOKWIM CORPORATION

and

DONLIN GOLD LLC

* Surface Use Agreement originally effective June 5, 1995 as revised and restated effective June 6, 2014.

TABLE OF CONTENTS

Page

SURFACE USE AGREEMENT		1
RECITALS		1
ARTICLE I. RIGHTS GRANTED OR SERVICES PROVIDED BY TKC		1

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RESTATED
EXPLORATION and LODE MINING LEASE*

EFFECTIVE MAY 1, 1995

BETWEEN

CALISTA CORPORATION

AND

DONLIN CREEK LLC

*       Exploration and Lode Mining Lease effective May 1, 1995 restated to reflect all assignments and amendments up to and including February 11, 2011.

TABLE OF CONTENTS

Page

ARTICLE I – LEASE		1
1.1	Grant of Lease:	1
1.2	Lode Placer Relationship:	3
ARTICLE II – DCLLC OPERATION		3
2.1	Conduct of Operations:	3

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AGREEMENT TO AMEND RESTATED

EXPLORATION AND LODE MINING LEASE

THIS AGREEMENT TO AMEND RESTATED EXPLORATION AND LODE MINING LEASE effective June 6, 2014 (hereinafter referred to as “Agreement”), regardless of the dates upon which it actually is executed by the parties hereto, is by and between: (a) DONLIN GOLD LLC, a Delaware limited liability corporation whose address is 4720 Business Park Blvd., Suite G-25, Anchorage, Alaska 99503 (hereinafter referred to as “DGLLC”); and (b) CALISTA CORPORATION, an Alaskan corporation whose address is 301 Calista Court, Suite A, Anchorage, Alaska 99518 (hereinafter referred to as “Calista”).

RECITALS

A.  Donlin Gold LLC, formerly known as Donlin Creek LLC, and Calista are parties to an Exploration and Lode Mining Lease effective May 1, 1995, which lease was amended and restated to reflect all assignments and amendments up to and including February 11, 2011 (hereinafter referred to as the “Mining Lease”).

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Certain confidential information contained in this document, marked by [***], has been omitted because the registrant has determined that the information (i) is not material and (ii) is the type that the registrant treats as private or confidential.

AMENDED AND RESTATED BITGO CUSTODIAL SERVICES AGREEMENT

This Amended and Restated Custodial Services Agreement (this “Agreement”) is made as of June 5, 2026 (the “Effective Date”) by and between each entity listed on Schedule B (severally and not jointly, each a “Client”) and BitGo Bank & Trust, National Association (“Custodian”). This Agreement amends and restates the prior Custodial Services Agreement, effective May 15, 2025, between each Client and Custodian. This Agreement governs Client’s use of the Custodial Services and the Wallet Services (each as defined below, and collectively, the “Services”) provided or made available by Custodian.

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Certain confidential information contained in this document, marked by [***], has been omitted because the registrant has determined that the information (i) is not material and (ii) is the type that the registrant treats as private or confidential.

AMENDMENT NUMBER 2 TO AMENDED AND RESTATED BITGO CUSTODIAL SERVICES AGREEMENT AND MUTUAL TERMINATION OF CUSTODIAL SERVICES AGREEMENT (GRAYSCALE BITTENSOR TRUST (TAO))

This Amendment and Mutual Termination (this “Amendment”) to the Agreement (as defined below) is made and entered into as of the date last signed below (the “Amendment Effective Date”) by and between BitGo Bank & Trust, National Association (“Custodian”) and Grayscale Investments Sponsors, LLC, on behalf of each entity listed on Schedule B (collectively, “Client”). Custodian and Client are each a “Party” and together, the “Parties”.

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Ehibit 10.2

Certain confidential information contained in this document, marked by [***], has been omitted because the registrant has determined that the information (i) is not material and (ii) is the type that the registrant treats as private or confidential.

SIXTH AMENDMENT

TO THE MASTER CUSTODY SERVICE AGREEMENT

This Sixth Amendment (this “Amendment”) is entered into as of September 29, 2026 (the “Amendment Effective Date”) by and between Anchorage Digital Bank N.A.(“Anchorage” or the “Custodian”), and each Grayscale entity identified on the signature pages hereto, including Grayscale Investments Sponsors, LLC(“Client” and collectively, “Grayscale”). Anchorage and Grayscale are each a “Party” and together the “Parties.”

WHEREAS, Anchorage and Grayscale Investments Sponsors, LLC are parties to that certain Master Custody Agreement dated as of August 8, 2025 (the “Agreement”);

WHEREAS, the Parties desire to amend the Agreements to provide for a temporary rebate of a portion of the custody fees payable by Grayscale thereunder, on the terms set forth herein;

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Certain confidential information contained in this document, marked by [***], has been omitted

because the registrant has determined that the information (i) is not material and (ii) is the type

that the registrant treats as private or confidential.

Exhibit 10.1

MASTER CUSTODY SERVICE AGREEMENT

Anchorage Contact		Client Contact
Name: Matthew Zablotny		Name: Ed McGee
Email: matthew.zablotny@anchorlabs.com		Email: ed@grayscale.com; cc: legal@grayscale.com

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Certain confidential information contained in this document, marked by [***], has been omitted because the registrant has determined that the information (i) is not material and (ii) is the type that the registrant treats as private or confidential.

SIXTH AMENDMENT

TO THE MASTER CUSTODY SERVICE AGREEMENT

This Sixth Amendment (this “Amendment”) is entered into as of September 29, 2026 (the “Amendment Effective Date”) by and between Anchorage Digital Bank N.A.(“Anchorage” or the “Custodian”), and each Grayscale entity identified on the signature pages hereto, including Grayscale Investments Sponsors, LLC(“Client” and collectively, “Grayscale”). Anchorage and Grayscale are each a “Party” and together the “Parties.”

WHEREAS, Anchorage and Grayscale Investments Sponsors, LLC are parties to that certain Master Custody Agreement dated as of August 8, 2025 (the “Agreement”);

WHEREAS, the Parties desire to amend the Agreements to provide for a temporary rebate of a portion of the custody fees payable by Grayscale thereunder, on the terms set forth herein;

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Certain confidential information contained in this document, marked by [***], has been omitted

because the registrant has determined that the information (i) is not material and (ii) is the type

that the registrant treats as private or confidential.

Exhibit 10.1

MASTER CUSTODY SERVICE AGREEMENT

Anchorage Contact		Client Contact
Name: Matthew Zablotny		Name: Ed McGee
Email: matthew.zablotny@anchorlabs.com		Email: ed@grayscale.com; cc: legal@grayscale.com

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Certain confidential information contained in this document, marked by [***], has been omitted

because the registrant has determined that the information (i) is not material and (ii) is the type

that the registrant treats as private or confidential.

Exhibit 10.1

MASTER CUSTODY SERVICE AGREEMENT

Anchorage Contact		Client Contact
Name: Matthew Zablotny		Name: Ed McGee
Email: matthew.zablotny@anchorlabs.com		Email: ed@grayscale.com; cc: legal@grayscale.com

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Certain confidential information contained in this document, marked by [***], has been omitted because the registrant has determined that the information (i) is not material and (ii) is the type that the registrant treats as private or confidential.

SIXTH AMENDMENT

TO THE MASTER CUSTODY SERVICE AGREEMENT

This Sixth Amendment (this “Amendment”) is entered into as of September 29, 2026 (the “Amendment Effective Date”) by and between Anchorage Digital Bank N.A.(“Anchorage” or the “Custodian”), and each Grayscale entity identified on the signature pages hereto, including Grayscale Investments Sponsors, LLC(“Client” and collectively, “Grayscale”). Anchorage and Grayscale are each a “Party” and together the “Parties.”

WHEREAS, Anchorage and Grayscale Investments Sponsors, LLC are parties to that certain Master Custody Agreement dated as of August 8, 2025 (the “Agreement”);

WHEREAS, the Parties desire to amend the Agreements to provide for a temporary rebate of a portion of the custody fees payable by Grayscale thereunder, on the terms set forth herein;

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