2026 – High Arctic Energy Services

High Arctic Announces Management Changes

CALGARY, Alberta – June 9, 2026, High Arctic Energy Services Inc. (TSX: HWO) (the “Corporation” or “High Arctic”) announces today that Jay Bachman, High Arctic’s Interim Chief Financial Officer, has recently tendered his resignation and his last day at High Arctic will be June 10, 2026. The Corporation has waived Mr. Bachman’s notice period in his employment arrangement to permit him to quickly move on to a new opportunity. Mr. Bachman has been with High Arctic since September 2024 and was instrumental in the transition of the accounting and reporting aspects related to High Arctic’s 2024 carve-out transaction with High Arctic Overseas Corp. (TSXV: HOH). Since assuming the role of Interim Chief Financial Officer in August of last year, Jay has led efforts to streamline the Corporation’s financial and governance processes to better align with the go-forward scale and requirements at High Arctic. High Arctic also announces today that Ms. Dorraine Neal has been appointed Interim Chief Financial Officer, effective June 10, 2026. Ms. Neal initially joined the Corporation in March 2024 in a consulting capacity and accepted a full-time role as Corporate Controller in September 2024. In the short span of time Dorraine has been with High Arctic she has managed the integration of the accounting and operational systems from the Delta acquisition and then migrated our legacy systems onto a modern accounting and operational system creating considerable efficiencies across the operations and accounting functions at High Arctic. Ms. Neal is a Chartered Professional Accountant with over 25 years of expertise in financial operations, management accounting and reporting, implementing/maintaining multi-currency financial systems and corporate budgeting and planning. Since joining High Arctic she has proven her ability to successfully manage the finance and administration team while effectively supporting operational management and senior executives. About High Arctic Energy Services High Arctic is an energy services provider. High Arctic provides pressure control equipment and equipment supporting the high-pressure stimulation of oil and gas wells and other oilfield equipment on a rental basis to exploration and production companies, from its bases in Whitecourt and Red Deer, Alberta. Additionally, High Arctic maintains a minority equity interest in Team Snubbing, a leading provider of well-control services to the oil and gas drilling industry with operations in Western Canada and Alaska, US. For further information contact: Lonn Bate Interim Chief Executive Officer P: 587-318-2218 P: +1 (800) 688 7143 High Arctic Energy Services Inc. Suite 2350, 330 – 5th Ave SW Calgary, Alberta, Canada T2P 0L4 website: www.haes.ca Email: info@haes.ca HWO Press Release – Management Changes – June 9 2026

High Arctic Announces Annual General Meeting Results

CALGARY, Alberta – May 15, 2025, High Arctic Energy Services Inc. (TSX: HWO) (the “Corporation” or “High Arctic”) is pleased to announce the results of the annual general meeting of the shareholders of High Arctic held on May 14, 2026 (the “Meeting”) HWO Press Release – 2026 AGM Voting Results – May 14 2026 Final

High Arctic Announces 2026 First Quarter Results

CALGARY, Alberta – May 14, 2026, High Arctic Energy Services Inc. (TSX: HWO) (the “Corporation” or “High Arctic”) released its first quarter 2026 financial and operating results. The unaudited condensed interim consolidated financial statements (the “Financial Statements”) and management discussion & analysis (“MD&A”) for the quarter ended March 31, 2026 will be available on SEDAR+ at www.sedarplus.ca, and on High Arctic’s website at www.haes.ca. HAES-Press Release-Q1 2026 Results-May 14

High Arctic Announces 2025 Fourth Quarter and Year End Financial and Operating Results

CALGARY, Alberta – March 31, 2026, High Arctic Energy Services Inc. (TSX: HWO) (the “Corporation” or “High Arctic”) released its fourth quarter and annual financial and operating results for the year ended December 31, 2025. The audited consolidated financial statements (the “Financial Statements”), management discussion & analysis (“MD&A”), and annual information form (“AIF”) for the year ended December 31, 2025 will be available on SEDAR+ at www.sedarplus.ca, and on High Arctic’s website at www.haes.ca. HAES-Q4 2025-Press Release-March 31-FINAL