GMO ETF Trust (formerly, “The 2023 ETF Series Trust II”)

Exhibit (g)(5)

GMO ETF Trust (formerly, “The 2023 ETF Series Trust II”)

May 15, 2026

State Street Bank and Trust Company

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Attn: ▇▇▇▇▇ ▇▇▇▇▇▇▇▇

Re: Addition of GMO Power Infrastructure ETF (the “Additional Series”) to GMO ETF Trust (formerly, “The 2023 ETF Series Trust II”) Agreements

Ladies and Gentlemen:

Reference is hereby made to the following agreements, originally dated as of October 10, 2023, by and between State Street Bank and Trust Company (“State Street”) and GMO ETF Trust (formerly, “The 2023 ETF Series Trust II”) (the “Trust”): (1) Custody Agreement, (2) Administration Agreement, and (3) Transfer Agency and Service Agreement, each as amended, modified and supplemented from time to time (the “Agreements”). 

This is to advise you that the Trust hereby requests that the Additional Series be added to the Agreements and that, accordingly, you act as service provider to the Additional Series under the terms thereof.

For the Custody Agreement, its Appendix A shall be revised and replaced in its entirety with the Custody Agreement Appendix A attached hereto. In addition, with respect to the Custody Agreement, if Class Action Services are selected for the Additional Series, Appendix A will reflect that the Class Action Services Addendum will apply.

For the Administration Agreement, its Schedule A shall be revised and replaced in its entirety with the Administration Agreement Schedule A attached hereto.

For the Transfer Agency and Services Agreement, Schedule A shall be revised and replaced in its entirety with the Transfer Agency and Services Agreement Schedule A attached hereto. In addition, with respect to the Transfer Agency and Service Agreement, if Investor Authorization and Sanctions Screening services are selected for the Additional Series, Appendix A will reflect that the Supplement to the Transfer Agency and Service Agreement will apply.

Please indicate your acceptance of the foregoing by executing two copies of this letter, returning one and retaining one copy for your records.

Information Classification: Limited Access

Sincerely,
GMO ETF TRUST
By:		/s/ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇
Name: ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇
Title: Vice President-Law
AGREED to and ACCEPTED:
STATE STREET BANK AND TRUST COMPANY
By:		/s/ ▇▇▇▇▇ ▇▇▇▇▇▇▇▇
Name: ▇▇▇▇▇ ▇▇▇▇▇▇▇▇
Title: Managing Director
Effective Date: May 29, 2026

Information Classification: Limited Access

GMO ETF Trust

Custody Agreement – Appendix A

Appendix A

List of Client Entities and Listing Exchanges

Fund Name		Jurisdiction		Listing Exchange		Class Action Services Addendum?
GMO ETF Trust		Delaware
GMO U.S. Quality ETF				NYSE
GMO International Quality ETF				NYSE
GMO International Value ETF				NYSE
GMO U.S. Value ETF				NYSE
GMO Systematic Investment Grade Credit ETF				NYSE
GMO Beyond China ETF				NYSE
GMO Horizons ETF				NYSE
GMO Dynamic Allocation ETF				NYSE
GMO Domestic Resilience ETF				NYSE
GMO Ultra-Short Income ETF				NYSE
GMO Power Infrastructure ETF				NYSE

Information Classification: Limited Access

GMO ETF Trust

Administration Agreement – Schedule A

ADMINISTRATION AGREEMENT

SCHEDULE A

Listing of Fund(s) and Services

Fund Name		Services Selected from Schedule B (check box)
GMO U.S. Quality ETF GMO International Quality ETF GMO International Value ETF GMO U.S. Value ETF GMO Systematic Investment Grade Credit ETF GMO Beyond China ETF GMO Horizons ETF GMO Dynamic Allocation ETF GMO Domestic Resilience ETF GMO Ultra-Short Income ETF GMO Power Infrastructure ETF		☒ Schedule B1 (Fund Administration Treasury Services) • Compliance Services (Quarterly IRS Tests and Gross Income Testing) (per fund/per year) • Treasury Services (per Fund/per year) • Tailored Shareholder Reporting - Standard Tailored Shareholder Reporting: Data and Report Creation (per class/per Year)
		☒ Schedule B2 (Fund Administration Tax Services) • Wash Sales (per Fund/per year) - Equity Fund
		☒ Schedule B3 (Fund Administration Legal Services) • Legal Administration (N-CSR and N-PX only) (per filing)
		☒ Schedule B4 (Fund Accounting Services)
		☒ Schedule B6 (N-PORT Services) • N-PORT Services Fees (per Fund/per Year) - Standard N-PORT Reporting Solution (Data and Filing)
		If B6 checked, complete Annex I (attached)

Information Classification: Limited Access

GMO ETF Trust

Administration Agreement – Schedule A / B6 – ANNEX I

ANNEX I

GMO ETF Trust

Further to the Administration Agreement originally dated as of October 10, 2023 between GMO ETF Trust (formerly “The 2023 ETF Series Trust II”) (the “Trust”) and State Street Bank and Trust Company (the “Administrator”), the Trust and the Administrator mutually agree to update this Annex 1 by adding/removing Funds and/or Portfolios as applicable:

Liquidity Risk Measurement Services
GMO ETF TRUST		FREQUENCY
N/A		N/A
Form N-PORT Services and Quarterly Portfolio of Investments Services
GMO ETF TRUST		Service Type Standard N-PORT Reporting Solution (Data and Filing)
GMO U.S. Quality ETF		X
GMO International Quality ETF GMO International Value ETF GMO U.S. Value ETF GMO Systematic Investment Grade Credit ETF GMO Beyond China ETF GMO Horizons ETF GMO Dynamic Allocation ETF GMO Domestic Resilience ETF GMO Ultra-Short Income ETF GMO Power Infrastructure ETF

IN WITNESS WHEREOF, the undersigned, by their authorized representatives, have executed this Annex 1 as of the last signature date set forth below.

Information Classification: Limited Access

By:						By:
Name: ▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇ Title: Vice President-Law Address: GMO ▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇						Name: ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ Title: Managing Director Address: ▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇ Effective Date: May 29, 2026

GMO ETF Trust

Transfer Agency and Services

Agreement – Schedule A

Schedule A

LIST OF PORTFOLIOS

Fund Name		TA Supplement?
GMO ETF Trust
GMO U.S. Quality ETF		No
GMO International Quality ETF		No
GMO International Value ETF		No
GMO U.S. Value ETF		No
GMO Systematic Investment Grade Credit ETF		No
GMO Beyond China ETF		No
GMO Horizons ETF		No
GMO Dynamic Allocation ETF		No
GMO Domestic Resilience ETF		No
GMO Ultra-Short Income ETF		No
GMO Power Infrastructure ETF		No

Information Classification: Limited Access