industries: water infrastructure or water equipment and/or services (the “Water Industries”). Water
infrastructure companies are those whose principal business is providing public water distribution or
supporting/enhancing water distribution infrastructure via engineering, construction and/or consulting.
Water infrastructure is comprised of two sub-industries: utilities and engineering & construction. Water
equipment and/or services companies are those whose principal business is producing water equipment,
such as pipes, valves, pumps and water efficiency products, or providing water services, such as
filtration, treatment, and testing of water. Water equipment and/or services companies often provide
technologies or products that manage or facilitate the management of water distribution and usage,
including the fields of water efficiency, water treatment, and irrigation. Water equipment and/or services is
comprised of two sub-industries: pipes, pumps & valves and filtration, treatment & testing (together with
utilities and engineering & construction, the “Water Sub-Industries”).
The Fund will normally invest at least 80% of its net assets, plus the amount of any borrowings for
investment purposes, in the types of securities suggested by its name (i.e., Water Companies). A Water
Company is a company that (i) derives at least 50% of revenues from the Water Industries; or (ii) derives
at least 40% of its revenues from the Water Industries, is ranked in the top five companies by total
revenue derived from any one of the Water Sub-Industries, and whose principal source of revenue comes
from the Water Industries.
To be included in the Underlying Index, a company must be a Water Company that is listed on a
developed country stock exchange. Tortoise Index Solutions, LLC, doing business as TIS Advisors (the
“Adviser”), the Fund’s investment adviser, considers Austria, Belgium, Canada, Denmark, Finland,
France, Germany, Hong Kong, Ireland, Israel, Italy, Japan, Luxembourg, the Netherlands, New Zealand,
Norway, Portugal, Singapore, Spain, Sweden, Switzerland, the United Kingdom and the United States to
be developed countries. Under normal market conditions, the Fund anticipates investing at least 40% of
its assets in companies organized in multiple countries outside of the United States, in companies whose
principal listing exchange is outside the United States, or in companies doing a substantial amount of
business outside the United States. The Underlying Index may include small and medium capitalization
companies. Eligible constituents must also have a total equity market capitalization of at least
$400 million for two consecutive quarters prior to the reference date at the time of inclusion in the
Underlying Index. In order to remain in the Underlying Index, a company must maintain an average equity
market capitalization of at least $300 million for a minimum of 20 trading days prior to the rebalance of
the Underlying Index. In addition, eligible constituents must obtain a minimum liquidity turnover of 0.15 for
two consecutive quarters prior to the reference date to be eligible to enter the Underlying Index. Current
index components will be dropped from the Underlying Index if they fail to meet a minimum of 0.10
liquidity turnover for two consecutive quarters. Any constituent that does not meet at least a 0.05 liquidity
turnover will be dropped from the Underlying Index without the two-quarter requirement. Liquidity turnover
is calculated by dividing a company’s three-month average daily trading volume in U.S. dollars by the
company’s total U.S. dollar market cap at the end of the three-month period.
Lastly, eligible constituents must have a minimum Environmental, Social and Governance (“ESG”) Risk
Rating as determined by the index committee that governs the Underlying Index (the “Index Committee”).
The Fund will invest at least 80% of its net assets, plus the amount of any borrowing for investment
purposes, in companies that meet the required ESG Risk Rating criteria set forth by the Underlying Index
methodology. ESG Risk Ratings are provided by Sustainalytics, a leading global provider of ESG and
corporate governance research. The Sustainalytics ESG Risk Ratings measure the degree to which a
company’s economic value is at risk driven by ESG factors or, more technically speaking, the magnitude