W. R. Grace & Co Investor Presentation — June 2018

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Investor Presentation

2018 Chemicals Conference

June 26, 2018© 2018 W. R. Grace & Co. |

2Statement Regarding Safe Harbor For Forward-Looking Statements

This presentation contains forward- looking statements, that is, information related to future, not past, events. Such statements generally include the words “believes,” “plans,”

“intends,” “targets,” “will,” “expects,” “suggests,” “anticipates,” “outlook,” “continues,” or similar expressions. Forward- looking statements include, without limitation, expected

financial positions; results of operations; cash flows; financing plans; business strategy; operating plans; capital and other e xpenditures; competitive positions; growth

opportunities; benefits from new technology and cost reduction initiatives; and markets for securities. For these statements, Grace claims the protections of the safe harbor for

forward- looking statements contained in Section 27A of the Securities Act and Section 21E of the Exchange Act. Like other businesses, Grace is subject to risks and uncertainties

that could cause its actual results to differ materially from its projections or that could cause other forward- looking statements to prove incorrect. Factors that could cause actual

results to differ materially from those contained in the forward- looking statements include, without limitation: risks related t o foreign operations, especially in emerging regions; the

effects of international trade disputes, tariffs and sanctions; the costs and availability of raw materials, energy and trans portation; the effectiveness of its research and development

and growth investments; acquisitions and divestitures of assets and businesses; developments affecting Grace’s outstanding indebtedness; developments affecting Grace's