Solaris Energy Infrastructure Announces Pricing of Upsized Offering of $1.25 Billion of 7.000% Senior Notes due 2032

Solaris Energy Infrastructure (SEI) priced an upsized private offering of $1.25 billion aggregate principal amount of 7.000% Senior Notes due April 1, 2032, to be issued at par.

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HOUSTON--(BUSINESS WIRE)-- ​Solaris Energy Infrastructure, Inc. (NYSE: SEI) (“Solaris”) today announced that Solaris Energy Infrastructure, LLC (the “Issuer”), a subsidiary of Solaris, has priced its offering (the “Offering”) of $1.25 billion aggregate principal amount of 7.000% Senior Notes due 2032 (the “Notes”). The Notes will mature on April 1, 2032 and will be issued at par. The Offering is expected to close on October 1, 2026, subject to customary closing conditions. The Offering was upsized to $1.25 billion in aggregate principal amount of Notes from the original offering size of $1.0 billion in aggregate principal amount of Notes. The Notes will be fully and unconditionally guaranteed on a senior unsecured basis by Solaris and all of the Issuer’s existing and future subsidiaries that guarantee certain indebtedness of the Issuer or a subsidiary guarantor, including the Issuer’s revolving credit facility.

The Issuer intends to use the net proceeds from the Offering for general corporate purposes, growth capital expenditures and to pay fees and expenses related to the Offering.

The Notes have not been and will not be registered under the Securities Act of 1933, as amended (the “Securities Act”), or the securities laws of any other jurisdiction and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act and applicable state securities laws. The Notes are being offered only to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act and to non-U.S. persons outside the United States only in compliance with Regulation S under the Securities Act.

This press release does not constitute an offer to sell or the solicitation of an offer to buy any of these Notes, nor shall there be any sale of these Notes, in any jurisdiction in which such offer, solicitation or sale would be unlawful. This press release is being issued pursuant to and in accordance with Rule 135c under the Securities Act.

About Solaris Energy Infrastructure, Inc.

Solaris Energy Infrastructure, Inc. (NYSE: SEI) delivers comprehensive power infrastructure solutions including generation, distribution, installation and commissioning, aftermarket support, and operations and maintenance. Headquartered in Houston, Texas, Solaris serves multiple U.S. end markets, including data centers, energy, and other commercial and industrial sectors. Additional information is available on our website, solaris-energy.com.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Securities Exchange Act of 1934, as amended. Examples of forward-looking statements include, but are not limited to, statements regarding the Offering, the terms of the Notes and the intended use of proceeds therefrom. Forward-looking statements are based on Solaris’s current expectations and assumptions regarding its business, the economy and other future conditions. Because forward-looking statements relate to the future, by their nature, they are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict. As a result, Solaris’s actual results may differ materially from those contemplated by the forward-looking statements. Factors that could cause Solaris’s actual results to differ materially from the results contemplated by such forward-looking statements include, but are not limited to, the factors discussed or referenced in Solaris’s filings made from time to time with the U.S. Securities and Exchange Commission (the “SEC”), including the other risk factors and cautionary statements in Solaris’s Annual Report on Form 10-K for the year ended December 31, 2025 filed with the SEC on February 27, 2026, any subsequently filed Quarterly Reports on Form 10-Q, and Solaris’s other filings with the SEC. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date hereof. Factors or events that could cause Solaris’s actual results to differ may emerge from time to time, and it is not possible for Solaris to predict all of them. Solaris undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260922847796/en/

Yvonne Fletcher
Senior Vice President, Finance and Investor Relations
(281) 501-3070
IR@solaris-energy.com

Source: Solaris Energy Infrastructure, Inc.

Key Terms

senior unsecured financial

Senior unsecured is a type of loan or bond that has priority over other unsecured obligations for repayment if a company runs into financial trouble, but it is not backed by specific assets as collateral. Think of it as being near the front of a line to get paid, but without a pledged item to seize if the borrower defaults; that higher repayment priority typically makes it less risky than subordinated debt but more risky than secured debt, which influences the interest rate investors demand.

rule 144a regulatory

Rule 144A is a regulation that makes it easier for companies to sell private bonds to large investors without going through all the usual rules that apply to public sales. It matters because it helps companies raise money more quickly and privately, often attracting big investors looking for special deals.

regulation s regulatory

Regulation S is a set of rules that allows companies to sell securities (like shares or bonds) to investors outside the United States without having to follow all U.S. securities laws. It matters because it makes it easier for companies to raise money from international investors while still complying with U.S. regulations.