What is sustainable investing?

* Controversial Weapons defined by MSCI as cluster bombs, chemical weapons and biological weapons, landmines, and depleted uranium weapons. The funds seek to track indexes that also exclude civilian firearms producers, as well as retailers that derive 5% or more of their revenue or more than $20 million in revenue, from civilian firearms products. The indexes also exclude tobacco producers, as well as retailers than derive 15% or more of revenue from tobacco products.

Carefully consider the Funds' investment objectives, risk factors, and charges and expenses before investing. This and other information can be found in the Funds' prospectuses or, if available, the summary prospectuses, which may be obtained by visiting the iShares Fund and BlackRock Fund prospectus pages. Read the prospectus carefully before investing.

Investing involves risk, including possible loss of principal.

The Fund's sustainable impact investment strategy limits the types and number of investment opportunities available to the Fund and, as a result, the Fund may underperform other funds that do not have a sustainable impact focus or do not require companies to meet a minimum environmental, social and governance ("ESG")  standard. The Underlying Index's sustainable impact and ESG standards may result in the Fund investing in securities or industry sectors that underperform the market as a whole or underperform other funds screened for ESG standards. In addition, the Index Provider may be unsuccessful in creating an index composed of companies that address a major social or environmental challenge.

The Fund's environmental, social and governance ("ESG") investment strategy limits the types and number of investment opportunities available to the Fund and, as a result, the Fund may underperform other funds that do not have an ESG focus. The Fund's ESG investment strategy may result in the Fund investing in securities or industry sectors that underperform the market as a whole or underperform other funds screened for ESG standards.

Diversification and asset allocation may not protect against market risk or loss of principal.

Buying and selling shares of ETFs will result in brokerage commissions.

Fixed income risks include interest-rate and credit risk. Typically, when interest rates rise, there is a corresponding decline in bond values. Credit risk refers to the possibility that the bond issuer will not be able to make principal and interest payments.

Non-investment-grade debt securities (high-yield/junk bonds) may be subject to greater market fluctuations, risk of default or loss of income and principal than higher-rated securities.

International investing involves risks, including risks related to foreign currency, limited liquidity, less government regulation and the possibility of substantial volatility due to adverse political, economic or other developments. These risks often are heightened for investments in emerging/ developing markets or in concentrations of single countries.

Small-capitalization companies may be less stable and more susceptible to adverse developments, and their securities may be more volatile and less liquid than larger capitalization companies.

The iShares Funds are not sponsored, endorsed, issued, sold or promoted by Barclays, Bloomberg Finance L.P., BlackRock Index Services, LLC, Cohen & Steers Capital Management, Inc., European Public Real Estate Association (“EPRA® ”), FTSE International Limited (“FTSE”), ICE Data Services, LLC, India Index Services & Products Limited, JPMorgan Chase & Co., Japan Exchange Group, MSCI Inc., Markit Indices Limited, Morningstar, Inc., The NASDAQ OMX Group, Inc., National Association of Real Estate Investment Trusts (“NAREIT”), New York Stock Exchange, Inc., Russell or S&P Dow Jones Indices LLC. None of these companies make any representation regarding the advisability of investing in the Funds. With the exception of BlackRock Index Services, LLC, who is an affiliate, BlackRock Investments, LLC is not affiliated with the companies listed above.

Neither FTSE nor NAREIT makes any warranty regarding the FTSE NAREIT Equity REITS Index, FTSE NAREIT All Residential Capped Index or FTSE NAREIT All Mortgage Capped Index; all rights vest in NAREIT. Neither FTSE nor NAREIT makes any warranty regarding the FTSE EPRA/NAREIT Developed Real Estate ex-U.S. Index, FTSE EPRA/NAREIT Developed Europe Index or FTSE EPRA/NAREIT Global REIT Index; all rights vest in FTSE, NAREIT and EPRA.“FTSE®” is a trademark of London Stock Exchange Group companies and is used by FTSE under license.

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