Avantor Announces Upsizing and Pricing of Offering of $2.0 Billion Equivalent of Senior Notes RADNOR, Pa.

Avantor Announces Upsizing and

Pricing of Offering of $2.0 Billion Equivalent of Senior Notes

RADNOR, Pa., July 7, 2020 /PRNewswire/ Avantor, Inc. (NYSE: AVTR)

( Avantor ), a leading global provider of mission critical products and services to customers in the life sciences and advanced technologies & applied materials industries, announced today the pricing of the previously announced

private offering by its wholly-owned subsidiary, Avantor Funding, Inc. (the Issuer ), of $1.550 billion aggregate principal amount of 4.625% Senior Notes due 2028 and 400 million aggregate principal amount of 3.875% Senior

Notes due 2028 (collectively, the Notes ). The principal amount of the dollar-denominated notes has been upsized from the $1.0 billion previously announced. The Notes will mature on July 15, 2028. The offering is expected to

close on July 17, 2020, subject to customary closing conditions.

The Notes will be guaranteed on a joint and several basis by Vail Holdco Sub LLC,

the Issuer s direct parent and a direct wholly-owned subsidiary of Avantor ( Holdco ), and by each of Holdco s wholly-owned domestic subsidiaries that guarantees obligations under the Issuer s senior secured credit

The Issuer intends to use the net proceeds from the sale of the Notes, along with cash on hand, to redeem all of its 9.000% Senior Notes due

2025 and to pay all fees and expenses related thereto.

The offering of the Notes was made in a private transaction in reliance upon an exemption from the

registration requirements of the Securities Act of 1933, as amended (the Securities Act ), in the United States only to persons reasonably believed to be qualified institutional buyers, as that term is defined in Rule 144A

under the Securities Act, or outside the United States pursuant to Regulation S under the Securities Act. The Notes have not been registered under the Securities Act or the securities laws of any other jurisdiction and may not be offered or sold in

the United States without registration or an applicable exemption from registration requirements.

This press release does not constitute an offer to sell

or the solicitation of an offer to buy, nor shall there be any sale of any of the Notes in any jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such

Avantor , a Fortune 500 company, is a leading global provider of mission-critical products and

services to customers in the biopharma, healthcare, education & government, and advanced technologies & applied materials industries. Our portfolio is used in virtually every stage of the most important research, development and

production activities in the industries we serve. One of our greatest strengths comes from having a global infrastructure that is strategically located to support the needs of our customers. Our global footprint enables us to serve more than 225,000

customer locations and gives us extensive access to research laboratories and scientists in more than 180 countries. We set science in motion to create a better world.

Forward-Looking and Cautionary Statements

contains forward-looking statements. All statements other than statements of historical fact included in this press release are forward-looking statements. Forward-looking statements discuss our current expectations and projections relating to our

financial condition, results of operations, plans, objectives, future performance and business. These statements may be preceded by, followed by or include the words aim, anticipate, believe, estimate,

expect, forecast, intend, likely, outlook, plan, potential, project, projection, seek, can, could,

may, should, would, will, the negatives thereof and other words and terms of similar meaning.

Forward-looking statements are inherently subject to risks, uncertainties and assumptions; they are not guarantees of performance. You should not place undue

reliance on these statements. We have based these forward-looking statements on our current expectations and projections about future events. Although we believe that our assumptions made in connection with the forward-looking statements are

reasonable, we cannot assure you that the assumptions and expectations will prove to be correct. Factors that could contribute to these risks, uncertainties and assumptions include, but are not limited to, the factors described in Risk

Factors in our most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q, as such risk factors may be updated from time to time in our periodic

filings with the SEC.

All forward-looking statements attributable to us or persons acting on our behalf are expressly qualified in their entirety by the

foregoing cautionary statements. In addition, all forward-looking statements speak only as of the date of this press release. We undertake no obligations to update or revise publicly any forward-looking statements, whether as a result of new

information, future events or otherwise other than as required under the federal securities laws.

Senior Vice President, Global Communications

Investor Relations Contact

Tommy J. Thomas, CPA

Vice President, Investor Relations