Nanometrics Investor Presentation — January 2019

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Investor Presentation

21stAnnual Needham Growth Conference

Dr. Pierre -Yves Lesaicherre, President and CEO

NANO IR Pres [Nov 2018 Update]

Forward -Looking Statements

This communication contains forward -looking statements within the meaning of the safe harbor provisions of the Private Securitie s Litigation Reform Act of 1995,

including, but not limited to statements regarding Nanometrics’ (“us” “our” or “the Company”) future financial results, incl uding, but not limited to our market share,

industry demand and growth. These statements are not guarantees of future performance, involve certain risks, uncertainties andassumptions that are difficult to

predict, and are based upon assumptions as to future events that may not prove accurate. Therefore, actual outcomes and resu ltsmay differ materially from what

is expressed herein. In any forward -looking statement in which Nanometrics expresses an expectation or belief as to future resu lts, such expectation or belief is

expressed in good faith and believed to have a reasonable basis, but there can be no assurance that the result will be achiev ed.The risks and uncertainties

include, but are not limited to: our ability to achieve desired product mix and pricing; our ability to achieve desired marke t position; growth in target industries; levels

and timing of capital expenditures in our target industries; customer adoption of certain technologies; market acceptance and timing of acceptance of our new

products; interruptions or changes to supply chain; our ability to identify, complete and integrate acquisitions; and other e conomic, business, competitive and/or

regulatory factors affecting Nanometrics’ businesses generally, including those set forth in Nanometrics’ filings with the SE C, including its Annual Report on Form