SIMPSON THACHER & BARTLETT LLP

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DIRECT DIAL NUMBER		E-MAIL ADDRESS
(212) 455-2948		JKAUFMAN@STBLAW.COM

VIA EDGAR TRANSMISSION

May 18, 2020

 

Re:

Acceleration Request for Avantor, Inc.

Registration Statement on Form S-1 (File No. 333-238468)

Securities and Exchange Commission

Division of Corporation Finance

100 F Street, N.E.

Washington, D.C. 20549

Attention: Jeffrey Gabor

Ladies and Gentlemen:

Pursuant to Rule 461 under the Securities Act of 1933, as amended, we attach the requests of our client, Avantor, Inc., and of the underwriters that effectiveness of the above-referenced Registration Statement be accelerated to 4:30 p.m., Washington, D.C. time, on May 20, 2020, or as soon as practicable thereafter. We ask, however, that the Securities and Exchange Commission staff not accelerate such effectiveness until we speak with you on that date.

Please call me at (212) 455-2948 with any questions.