<div id="readability-page-1"><div>HAMILTON, Bermuda, May 20, 2026 /PRNewswire/ -- Reference is made to the announcement by Euronext Oslo Børs on May 7, 2026 regarding the approval to transfer the listing of the shares in Borr Drilling Limited () (OSE: BORR) (&#34;Borr Drilling&#34; or &#34;the Company&#34;) from trading on Euronext Growth Oslo to Euronext Oslo Børs (the main list).As of tomorrow, May 21, 2026, the Company's shares will be listed on Euronext Oslo Børs and will continue to trade under the ticker &#34;BORR&#34; and ISIN BMG1466R1732. Simultaneously with the shares commencing trading on Euronext Oslo Børs, the shares will be deregistered from, and will cease to trade on, Euronext Growth Oslo.The Company has prepared a prospectus in connection with the listing of its shares on Euronext Oslo Børs. The prospectus was approved by the Norwegian Financial Supervisory Authority on May 20, 2026, and has been made available at the Company's website, www.borrdrilling.com, prior to commencement of trading on Euronext Oslo Børs.The Company's primary listing continues to be on the NYSE.About Borr DrillingBorr Drilling Limited is an international drilling contractor incorporated in Bermuda in 2016 and listed on the New York Stock Exchange since July 31, 2019 and on Euronext Oslo Børs since May 21, 2026 under the ticker &#34;BORR&#34;. The Company owns and operates jack-up rigs of modern and high specification designs and provides services focused on the shallow-water segment to the offshore oil and gas industry worldwide. Please visit our website at www.borrdrilling.com.Questions should be directed to: Magnus Vaaler, CFO, +44 1224 289208This information was brought to you by Cision http://news.cision.comhttps://news.cision.com/borr-drilling-limited/r/borr-drilling-limited---commencement-of-trading-on-euronext-oslo-bors-and-publication-of-prospectus,c4351295SOURCE Borr Drilling Limited</div></div>

BORR

Borr Drilling Limited 的股票將於 2026 年 5 月 21 日在歐交所奧斯陸證券交易所開始交易，此前已從歐交所成長市場轉移。股票將繼續以 “BORR” 為代碼進行交易，ISIN 為 BMG1466R1732。該上市的招股説明書已獲得挪威金融監管局的批准，並可在公司網站上獲取。Borr Drilling 主要在紐約證券交易所上市，專注於海上鑽井服務

Borr Drilling Limited - 在 Euronext Oslo Børs 開始交易併發布招股説明書