The second table in the release dated September 10, 2021, has been amended to include Inter Pipeline Ltd as a deletion within the Tortoise North American Pipeline Index Index^SM (TNAP/TNAPT).

The updated release reads:

TORTOISEECOFIN ANNOUNCES INDEX UPDATES FOR THIRD QUARTER 2021

TortoiseEcofin today announced upcoming additions and deletions to its indices as part of its regular quarterly rebalancing for the third quarter of 2021. Following the close of trading on September 17, 2021, the indices will be rebalanced and as a result, the following changes will become effective.

Full constituent lists for each index from the second quarter rebalance can be found here:

Tortoise MLP Index^® (TMLP):

https://tortoiseecofin.com/media/1528/tmlp-constituent-overview-61821.pdf

Tortoise North American Pipeline Index^SM (TNAP):

https://tortoiseecofin.com/media/1530/tnap-constituent-overview-61821.pdf

Ecofin Global Water ESG Index ^SM (EGWESG):

https://tortoiseecofin.com/media/1260/egwesg-constituent-overview-61821.pdf

Ecofin Global Digital Payments Infrastructure Index ^SM (TPMT):

https://tortoiseecofin.com/media/1539/tpmt-constituent-overview-61821.pdf

About TortoiseEcofin

TortoiseEcofin focuses on essential assets – those assets and services that are indispensable to the economy and society. We strive to make a positive impact on clients and communities by investing in energy infrastructure and the transition to cleaner energy and by providing capital for social impact projects focused on education and senior living. TortoiseEcofin brings together strong legacies from Tortoise, with expertise investing across the energy value chain for more than 20 years, and from Ecofin, which unites ecology and finance and has roots back to the early 1990s. To learn more, visit www.TortoiseEcofin.com.

The Tortoise MLP Index^® is a float-adjusted, capitalization weighted index of energy master limited partnerships (MLPs). The index is comprised of publicly traded companies organized in the form of limited partnerships or limited liability companies engaged in transportation, production, processing and/or storage of energy commodities.

The Tortoise North American Pipeline Index^SM is a float-adjusted, capitalization weighted index of pipeline companies that are organized and have their principal place of business in the United States or Canada. A pipeline company is defined as a company that either 1) has been assigned a standard industrial classification (“SIC”) system code that indicates the company operates in the energy pipeline industry or 2) has at least 50% of its assets, cash flow or revenue associated with the operation or ownership of energy pipelines. Pipeline companies engage in the business of transporting natural gas, crude oil and refined products, storing, gathering and processing such gas, oil and products and local gas distribution. The index includes pipeline companies structured as corporations, limited liability companies and master limited partnerships (MLPs).

The Ecofin Global Water ESG Index^SM is a proprietary, rules-based, modified capitalization-weighted, float-adjusted index comprised of companies that are materially engaged in the water infrastructure or water management industries.

The indices mentioned above are the exclusive property of TIS Advisors, which has contracted with S&P Opco, LLC (a subsidiary of S&P Dow Jones Indices LLC) to calculate and maintain the Tortoise MLP Index®, Tortoise North American Pipeline Index^SM,and Ecofin Global Water ESG Index^SM (the “Indices”). The Indices are not sponsored by S&P Dow Jones Indices or its affiliates or its third party licensors (collectively, “S&P Dow Jones Indices”). S&P Dow Jones Indices will not be liable for any errors or omissions in calculating the Indices. “Calculated by S&P Dow Jones Indices” and its related stylized mark(s) are service marks of S&P Dow Jones Indices and have been licensed for use by TIS Advisors and its affiliates. S&P^® is a registered trademark of Standard & Poor’s Financial Services LLC (“SPFS”), and Dow Jones® is a registered trademark of Dow Jones Trademark Holdings LLC (“Dow Jones”).

The Ecofin Global Digital Payments Infrastructure Index^SM represents the existing global digital payments landscape. It is a proprietary, rules-based, modified market capitalization-weighted, float-adjusted index comprised of companies that are materially engaged in digital payments, including merchant processing and settlement, real time record keeping, settlement networks, and Fintech products/ services that facilitate the ease, efficiency, and speed of electronic transactions. This includes companies whose primary business is comprised of one or a combination of the following categories: credit card networks, electronic transaction processing and associated products/services, credit card issuers, electronic transaction processing software (payments Fintech) or online financial services market places.

This index mentioned above is the exclusive property of TIS Advisors and is calculated by Solactive AG (“Solactive”). The financial instruments that are based on the Index are not sponsored, endorsed, promoted or sold by Solactive AG (“Solactive”) in any way and Solactive makes no express or implied representation, guarantee or assurance with regard to: (a) the advisability in investing in the financial instruments; (b) the quality, accuracy and/or the completeness of the Index or the calculations thereof; and/or (c) the results obtained or to be obtained by any person or entity from the use of the Index.

This data is provided for informational purposes only and is not intended for trading purposes. This document shall not constitute an offering of any security, product or service. The addition, removal or inclusion of a security in the index is not a recommendation to buy, sell or hold that security, nor is it investment advice. The information contained in this document is current as of the publication date. TortoiseEcofin makes no representations with respect to the accuracy or completeness of these materials and will not accept responsibility for damages, direct or indirect, resulting from an error or omission in this document. The methodology involves rebalancing and maintenance of the index that is made periodically during each year and may not, therefore, reflect real time information.

Safe Harbor Statement

This press release shall not constitute an offer to sell or a solicitation to buy, nor shall there be any sale of these securities in any state or jurisdiction in which such offer or solicitation or sale would be unlawful prior to registration or qualification under the laws of such state or jurisdiction.

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