Exhibit 16.1

March 4, 2020

Securities and Exchange Commission

100 F Street, NE

Washington, DC 20549

Ladies and Gentlemen:

We have read the statements made by Japan Smaller Capitalization Fund, Inc. in its Form 8-K dated March 4, 2020, which we understand will be filed with the Commission pursuant to Item 4 of Form 8-K. We agree with the statements concerning our Firm in such Form 8-K.

Very truly yours,

/s/ RSM US LLP

March 4, 2020

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