STENA AB ISSUES A PRELIMINARY TRADING UPDATE AS OF AUGUST 31, 2023

Gothenburg, Sweden, September 18, 2023

Stena AB (the “Company”) one of the largest privately owned companies in Sweden, hereby issues a trading update.

Based upon preliminary, unaudited financial information, we believe that for the two months ended August 31, 2023, our business has overall performed in line with the reported results for the first half of the year.

The Company has a strong liquidity position. As of August 31, 2023, the liquidity position was in line with the liquidity position as of June 30, 2023, comprising of cash, existing undrawn credit facilities, short-term investments and marketable securities. The Company’s credit facilities include the Company’s  €608 million multicurrency revolving credit facility (“RCF”) and a $100 million standby facility. The outstanding amount under the RCF was €373 million, and the amount outstanding under the standby facility was $47 million.

The preliminary trends and liquidity amounts are estimates based on currently available information, and our unaudited internal monthly financial information, and  the financial results are not finalized and are not intended to be comprehensive financial results for any period or date. The Company does not intend to update or otherwise revise these estimates to reflect future events and does not intend to disclose publicly whether its actual results will vary from its estimates other than through the release of actual results in the ordinary course of business. No independent public accounting firm has complied, examined or performed any procedures with respect to the preliminary financial information contained above, nor have they expressed any opinion or other form of assurance on such information or its achievability.

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About Stena AB

Stena AB is one of the largest privately owned companies in Sweden. Stena AB owns and operates one of the world’s largest international passenger and freight ferry services and owns, charters and operates offshore drilling units, drilling rigs, crude oil and petroleum product tankers, LNG carriers and Roll on/Roll off vessels. Stena AB also invests in and manages residential and commercial real estate, principally in Sweden and has investments in other businesses not related to our traditional lines of business.

Forward-Looking Statements

The press release include forward-looking statements within the meaning of applicable securities laws, including expected business performance for the two months ended August 31, 2023 and expected liquidity. These forward-looking statements reflect the Company’s current expectations and are subject to change. Forward-looking statements reflect knowledge and information available at, and speak only as of, the date they are made, and the Company expressly disclaims any obligation or undertaking to update, review or revise any forward-looking statement contained in this press release. Readers are cautioned not to place undue reliance on such forward-looking statements.

Investor and Media Contact:

Peter Claesson

peter.claesson@stena.com

+46 704 855 144