Q3 2025PRESENTATION November 06, 2025

Forward Looking Statement This announcement and related discussions include forward looking statements made under the "safe harbor" provisions of the U.S. Private Securities Litigation Reform Act of 1995. Forward looking statements do not reflect historical facts and may be identified by words such as "anticipate", "believe", "continue", "estimate", "expect", "intends", "may", "should", "will", "likely", "aim", "plan", "guidance" and similar expressions and include statements regarding industry trends and market outlook, supply/demand expectations, statements about expected activity and state of the market and expectations of a rebound in the near to medium term, expected activity levels in the jack-up rig and oil industry, contract revenue backlog and potential contract revenue, contracts and contract commitments, contract start dates and rates, options, contract commitments, LOIs and LOAs, contract coverage, potential revenue, including rates that may be achieved, guidance on results of operations including expected 2025 Adjusted EBITDA, expected trends in dayrates, market conditions, statements about the global jack-up fleet, including the number of rigs contracted and available and expected to be available and expected trends in the global fleet including expected new deliveries and the number of rigs under construction and expectations as to when such rigs will join the global fleet, statements about the expected normalizing of payment of receivables to us from our Mexico operations, and statements made under “Market” and "Risk and uncertainties" above, and other non-historical statements. These forward-looking statements are based upon current expectations and various assumptions, which are, by their nature, uncertain and are subject to significant known and unknown risks, contingencies and other important factors which are difficult or impossible to predict and are beyond our control. Such risks, uncertainties, contingencies and other factors could cause our actual results, level of activity, performance, financial results or position, liquidity or achievements to differ materially from those expressed or implied by these forward-looking statements, including risks relating to our industry and industry conditions, business, the risk that our actual results of operations in current or future periods differ materially from expected results or guidance discussed herein, the actual timing of payments to us and the risk of delays in payments or receivables to our JVs and payments from our JVs to us, the risk that our customers do not comply with their contractual obligations, the risk of customers becoming subject to sanctions, risks relating to geopolitical events and inflation, risks relating to global economic uncertainty and energy commodity prices, risks relating to contracting, including our ability to convert commitments, LOIs and LOAs into contracts, the risk of contract suspension or termination, the risk that options will not be exercised, the risk that contract revenue backlog and potential contract revenue will not materialize as expected, risks relating to the operations of our rigs and ability to achieve expected dates of operation and delivery of rigs and contract commencement dates, risks relating to dayrates and duration of contracts and the terms of contracts and the risk that we may not enter into contracts or that contracts are not performed as expected, risks relating to contracting our most recently delivered rigs and other available rigs, risks relating to market trends, including tender activity, risks relating to customer demand and contracting activity and suspension or termination of operations, including as a result of customers becoming subject to sanctions, risks relating to our liquidity and cash flows, risks relating to our indebtedness including risks relating to our ability to repay or refinance our debt at maturity, including our secured notes maturing in 2028 and 2030, our convertible bonds due 2028, and debt under our revolving credit facilities and risks relating to our other payment obligations on these debt instruments including interest, amortization and cash sweeps, risks relating to our ability to comply with covenants under our revolving credit facilities and other debt instruments and obtain any necessary waivers and the risk of cross defaults, risks relating to our ability to pay cash distributions and repurchase shares including the risk that we may not have available liquidity or distributable reserves or the ability under our debt instruments to pay such cash distributions or repurchase shares and the risk that we may not complete our share repurchase program in full, and risks relating to the amount and timing of any cash distributions we declare, risks relating to future financings including the risk that future financings may not be completed when required and risks relating to the terms of any refinancing, including risks related to dilution from any future offering of shares or convertible bonds, risks related to climate change, including climate-change or greenhouse gas related legislation or regulations and the impact on our business from physical climate-change related to changes in weather patterns, and the potential impact of new regulations relating to climate change and the potential impact on the demand for oil and gas, risk relating to military actions including in Ukraine and the Middle East and their impact on our business and industry, and other risks factors set forth under “Risk Factors” in our most recent annual report on Form 20-F and other filings with and submissions to the U.S. Securities and Exchange Commission. These forward-looking statements are made only as of the date of this document. We undertake no (and expressly disclaim any) obligation to update any forward-looking statements after the date of this report or to conform such statements to actual results or revised expectations, except as required by law. Non-GAAP Financial Measures The Company uses certain financial information calculated on a basis other than in accordance with accounting principles generally accepted in the United States (US GAAP) including Adjusted EBITDA. Adjusted EBITDA as presented above represents our periodic net income/(loss) adjusted for: depreciation of non-current assets, (loss)/income) from equity method investments, total financial expense net and income tax expense. Adjusted EBITDA is presented here because the Company believes that the measure provides useful information regarding the Company’s operational performance. For a reconciliation of Adjusted EBITDA to Net income/(loss), please see the last page of this report. The Company provides guidance on expected Adjusted EBITDA, which is a non-GAAP financial measure. Management evaluates the Company's financial performance in part based on the basis of actual and expected Adjusted EBITDA, which management believes enhances investors' understanding of the Company's overall financial performance by providing them with an additional meaningful relevant comparison of current and anticipated future results across periods. Due to the forward-looking nature of Adjusted EBITDA, management cannot reliably predict certain of the necessary components of the most directly comparable forward-looking GAAP measure. Accordingly, the Company is unable to present a quantitative reconciliation of such forward looking non-GAAP financial measure to the most directly comparable forward-looking GAAP financial measure without unreasonable effort. The Company disclaims any current intention to update such guidance, except as required by law

Q3 2025 Company Overview and Highlights 1 Adj. EBITDA margin is calculated by Adjusted EBITDA divided by Total Operating Revenues 2 Liquidity comprises $227.8M cash and cash equivalents and $234.0M RCF capacity as of Q3 2025 3 Full year 2025 contract coverage includes ~5.5% coverage related to suspension periods in Mexico 3 International Footprint and Diversified Portfolio Sustaining healthy adjusted EBITDA Adj. EBITDA $135.6M Adj. EBITDA Margin1 48.9% 2025 Coverage Contract Coverage385% Average Dayrate $145k Solid liquidity and continued deleveraging Liquidity2 $461.8M Debt Amortization $135M Per Annum Youngest Fleet with Global Footprint Currently 23 Active Rigs Fleet 24 Modern Rigs Highlights Asia Contracted 23 Middle East Africa 5 1 North Sea Mexico Available 1 SouthAmerica 1 3 7 1 6

Key Financials Q3 2025 In $ million Q3 2025 Q2 2025 Change ($) Change (%) Total operating revenues 277.1 267.7 9.4 3.5% Total operating expenses (178.9) (171.2) (7.7) 4.5% Operating income 98.0 96.5 1.5 1.6% Net income / (Loss) 27.8 35.1 (7.3) (20.8%) Adjusted EBITDA 135.6 133.2 2.4 1.8% Cash and cash equivalents 227.8 92.4 135.4 146.5% Total assets 3,522.0 3,351.7 170.3 5.1% Total liabilities 2,381.9 2,339.1 42.8 1.8% Total equity 1,140.1 1012.6 127.5 12.6% Quarterly Revenue progression ($M) Quarterly Adjusted EBITDA progression ($M) Q4 2023 Q1 2024 Q2 2024 Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 220.6 234.0 11.7 271.9 12.1 241.6 263.1 7.6 6.8 216.6 8.9 267.7 9.4 277.1 Q4 2023 Q1 2024 Q2 2024 Q3 2024 Q4 2024 Q1 2025 Q2 2025 Q3 2025 Related Party and BBC Revenue Management contract revenue Dayrate Revenues

1 New mutual contracts, LOIs and LOAs including mobilization and demobilization revenues (includes bareboat charter contracts adjusted to a gross dayrate-equivalent basis) 2 Average dayrate is derived from Backlog Revenue divided by number of contracted days 5 Fleet Overview 22 New Commitments $625M Added Backlog Revenue $130k Avg Dayrate2 4,820+ Backlog Days 2025 YTD Contracting Statistics1

Delivering strong coverage at healthy rates Contract Coverage1 (%) Source: Company data 1 Coverage % represented by the number of contracted days divided by the total days available on a full year basis; includes ~5.5% coverage related to suspension periods in Mexico in 2025 2 Includes priced options 6 First half of 2026 nearly 80% covered Premium fleet and strong customer relationships driving robust utilization Line of sight for additional H1 coverage Constructive outlook for second half of 2026 and beyond Key markets showing signs of improvement, incremental demand materializing Expanding customer base in new markets 79% coverage @ 139k/d 44% coverage @ 154k/d

Utilization steady, upside catalyst forming Source: Petrodata by S&P Global and Company data 7 Marketed Utilization Rig attrition continues Isolated retirements persist, continued potential for larger retirements on the back of industry consolidation Modern jack-up demand proving resilient Utilization has held near 90% despite considerable headwinds Middle East demand materializing Aramco suspended units resuming activity; incremental demand visible in the region Room for continued growth in West Africa Activity levels in West Africa still lag past cycles, additional upside potential

8 In Conclusion Successfully navigating near term volatility; full year 2025 Adj. EBITDA between $455m - $470m 1 Modern jack-up demand has remained resilient; demand inflection materializing in key markets 2 Borr Drilling platform well positioned to benefit from market inflection 3

Appendix

ADJUSTED EBITDA RECONCILIATION 10 (in US$ millions) Q3 2025 Q2 2025 Net income / (loss) 27.8 35.1 Depreciation of non-current assets 37.6 36.7 Loss from equity method investments 0.3 0.2 Total financial expense, net 58.6 56.4 Income tax expense 11.3 4.8 Adjusted EBITDA 135.6 133.2 Non-GAAP Financial Measures The Company uses certain financial information calculated on a basis other than in accordance with accounting principles generally accepted in the United States (US GAAP) including Adjusted EBITDA. Adjusted EBITDA as presented above represents our periodic net income/(loss) adjusted for: depreciation and impairment of non-current assets, other non-operating income; (income)/loss from equity method investments, total financial (income) expense net and income tax expense. Adjusted EBITDA is presented here because the Company believes that the measure provides useful information regarding the Company’s operational performance. The Company provides guidance on expected Adjusted EBITDA, which is a non-GAAP financial measure. Management evaluates the Company's financial performance in part based on the basis of actual and expected Adjusted EBITDA, which management believes enhances investors' understanding of the Company's overall financial performance by providing them with an additional meaningful relevant comparison of current and anticipated future results across periods. Due to the forward-looking nature of Adjusted EBITDA for FY 2025, management cannot reliably predict certain of the necessary components of the most directly comparable forward-looking GAAP measure. Accordingly, the Company is unable to present a quantitative reconciliation of such forward looking non-GAAP financial measure to the most directly comparable forward-looking GAAP financial measure without unreasonable effort. The Company disclaims any current intention to update such guidance, except as required by law

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