Borr Drilling Limited – Approval of prospectus

Hamilton, Bermuda, 19 October 2017

Reference is made to Borr Drilling Limited’s (“Borr Drilling” or the “Company”) stock exchange notices dated 9 October 2017 relating to the completed USD 650 million equity offering (the “Equity Offering”) for the partly financing of nine premium jack-up rigs to be acquired from PPL Shipyard Pte Limited.

The Financial Supervisory Authority of Norway has approved the prospectus dated 19 October 2017 (the “Prospectus”) which has been prepared in connection with the listing of 162,500,000 new shares (the “New Shares”) issued in the Equity Offering. The New Shares have since they were issued been traded on Merkur Markets under a separate ISIN.

The New Shares will be tradable on Oslo Børs from 20 October 2017, under the ticker “BDRILL”. The New Shares will be converted to the Company’s original ISIN number (BMG575071086) in the VPS system from 24 October 2017.

The Prospectus will, subject to regulatory restrictions in certain jurisdictions, be available at the following website: www.borrdrilling.com. Hard copies of the Prospectus may be obtained free of charge at the offices of Borr Drilling Management AS at Klingenberggata 4, N-0160 Oslo, Norway.

ABG Sundal Collier ASA, Clarksons Platou Securities AS, DNB Markets, a part of DNB Bank ASA, Fearnley Securities AS, Pareto Securities AS, Skandinaviska Enskilda Banken AB (publ.), Oslo branch and Sparebank 1 Markets AS acted as Joint Lead Managers and Bookrunners for the Equity Offering.

This information is subject to the disclosure requirements pursuant to section 5-12 of the Norwegian Securities Trading Act.

About Borr Drilling

Borr Drilling is an international drilling contractor that owns and operates jack-up rigs of modern and high-specification designs providing drilling services to the oil and gas exploration and production industry worldwide in water depths up to approximately 400 feet. With a low cost base, a strong and experienced organisational culture, combined with a unique capital structure, Borr Drilling is built to make a difference.

Additional information about Borr Drilling can be found at www.borrdrilling.com.

Questions should be directed to:

Rune Magnus Lundetræ, Deputy CEO and Chief Financial Officer

Phone: +47 23 48 30 00