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CALGARY, Alberta – May 29, 2026 – High Arctic Overseas Holdings Corp. (TSXV: HOH) (“High Arctic” or the “Corporation”) has released its first quarter financial and operating results. The unaudited condensed interim consolidated financial statements (the “Financial Statements”) and management’s discussion & analysis (“MD&A”) for the quarter ended March 31, 2026, will be available on SEDAR+ at www.sedarplus.ca. All amounts are denominated in United States Dollars (“USD”), unless otherwise indicated.

The common shares of the Corporation began trading on the TSXV on August 16, 2024 under the trading symbol HOH.

Mike Maguire, Chief Executive Officer, commented on the Corporation’s first quarter of 2026 financial and operating results and outlook:

“High Arctic’s Q1 2026 results reflect low activity levels in PNG and expenditures related to our diversification strategy. I believe that High Arctic is approaching an inflection point. We expect the notice to commence mobilisation of Drilling Rig 103 will mark the beginning of a renewed focus on PNG as a secure and stable source of energy and critical minerals. The Papua-LNG project’s community development forum will be held in June / July, one of the last significant steps towards a Final Investment Decision this year. Papua-LNG is a significant drilling opportunity that are we competitively placed for. Further, the project is expected to stimulate other drilling activity including exploration which is High Arctic’s core specialty.

Progress has been made on expanding our customer base for Equipment Rentals and building out the new Fire Services business, predominantly in adjacent industries such as mining and industrial construction. Our appointment as the authorised distributor of Atlas Copco Power Technique products for Papua New Guinea contributes to our diversification strategy and is perfectly timed for maximizing potential participation in future major PNG projects.
Our strong working capital and debt-free balance sheet position us well for all of these organic growth opportunities, exploring potential acquisitions and maximising shareholder value.”

2026 First Quarter Highlights
•Notice received subsequent to the quarter-end to remobilise and reactivate Rig103 as of July 1, 2026;
•Agreement signed with Atlas Copco as authorised distributor of the Atlas Copco Power Technique product range throughout PNG;
•Final stages of negotiation on a number of minor services agreements across the Rentals and Fire Services divisions broadening our customer base and exposure to the mining sector in PNG;
•Compared to Q1 2025, revenue dropped by 33% and operating margin reduced from 28.4% to 10.5% as a result of manpower services activities continuing to wind down upon completion of the customer’s project which was partly offset by the introduction of the Fire Services activities which continued its ramp up in Q4 2025;
•Drilling rigs 115 and 116 remain cold-stacked; and
•Strong working capital position of $16.9 million to support the continued ramp up of new activities and other strategic objectives.

In the above results discussion, the three months ended March 31, 2026 may be referred to as the “quarter” or “Q1 2026” and the comparative three months ended December 31, 2025 may be referred to as “Q4 2025”. References to other quarters may be presented as “QX 20XX” with X/XX being the quarter/year to which the commentary relates.

Business Strategy
Our business strategy focused on Papua New Guinea is underpinned by the following cornerstones:
•Leveraging our core PNG planning and logistics capability to diversify our service offerings;
•Deploying idle assets into profitable operations;
•Strengthening local content & participation in the PNG finance and investment communities;
•An established and efficient corporate structure; and
•Seeking opportunities to expand and root the business in the Australasian region.
2026 Strategic Objectives
•Relentless focus on safety excellence and quality service delivery;
•Grow the Equipment Rentals and Fire Services business offerings;
•Pursue pathways to return idle drilling assets into service;
•Maximize potential participation in future major Papua New Guinea projects; and
•Pursue expansionary transactions that increase shareholder value

CALGARY, Alberta – May 25, 2026 – High Arctic Overseas Holdings Corp. (TSXV: HOH) (“High Arctic Overseas” or the “Corporation”) is pleased to announce that today it received notice from its principal drilling customer to recommence drilling services in Papua New Guinea (“PNG”).

The notice received today follows the announcement on April 30, 2026 of the renewal of the long-standing drilling services contract between High Arctic and it’s principal customer in PNG. The notice calls for the remobilisation of personnel and equipment commencing in July 2026, for the reactivation of Drilling Rig 103.

The two year renewal of the drilling services contract was effective May 1, 2026 and includes an option to further extend the contracts on the same terms and conditions beyond April 30, 2028.

Mike Maguire, High Arctic Chief Executive Officer commented on the notice: “After a lengthy period of suspension, I am pleased that we are finally returning to drilling. We will commence with a series of planned reactivation and re-commissioning works aimed at ensuring that Rig 103 maintains current certification and optimum operating condition. It is expected that drilling of the first well will commence in Q4-2026.

Today’s announcement is the culmination of extensive planning with key customer personnel. The drilling plan includes four approved wells with the potential to add several additional unapproved wells. This campaign could see Rig 103 operate continuously out past the end of the current contract period. The recommencement of drilling will have significant impact on all stakeholders, particularly the very capable and loyal domestic drilling workforce that we have developed over the past 20 years. I am sure all are keen to return and build upon the 4.7 million work-hours of incident free work conducted together, here in one of the worlds most challenging environments.”

About High Arctic Overseas Holdings Corp.

High Arctic delivers drilling, equipment rentals, fire protection services, asset management and workforce solutions across Papua New Guinea. We are the authorised distributor for Atlas Copco Power Technique products in PNG. Together, we combine international standards with local expertise and an unwavering focus on quality, to support oil and gas, mining, and infrastructure projects nationwide.

For further information, please contact:
Matt Cocks
Chief Financial Officer
1.587.320.1301

High Arctic Overseas Holdings Corp.
Suite 2350, 330–5th Avenue SW
Calgary, Alberta, Canada T2P 0L4
www.higharctic.com
Email: info@higharctic.com

CALGARY, Alberta, May 21, 2026 — High Arctic Overseas Holdings Corp. (TSXV: HOH) (“High Arctic Overseas” or the
“Corporation”) is pleased to announce that today it agreed to terms with Atlas Copco Australia Pty Limited (“Atlas Copco“) for
High Arctic’s appointment as the authorised sole distributor of Atlas Copco Power Technique products for Papua New Guinea.

Mike Maguire, High Arctic Chief Executive Officer commented on the appointment “I am excited to have reached agreement
with Atlas Copco and am proud to place their brand next to our logo in Papua New Guinea. Atlas Copco is a name
synonymous with quality across industries and across the world. We believe that together, we can bring technical solutions
that our customers can rely upon, in one of the worlds most exciting developing economies. I am particularly pleased with the
further development opportunities this will create for our local PNG workforce as Atlas Copco certified service technicians.”

The appointment includes a commitment to work together through an initial 2-year period to establish and promote the Atlas
Copco brand in PNG. Initial efforts will focus on the need for efficient high quality, power generation, energy storage systems,
mobile lighting plants and air compression equipment that incorporate the latest Atlas Copco technology.

Following the establishment phase sales, rentals and after-market service are expected to contribute meaningfully to High
Arctic’s “non-drilling” revenue growth over the medium term. We estimate that construction and resource project expenditures
in PNG averages between US$2-3billion annually, with light equipment sales and rentals representing approximately 2-5% of
that expenditure.

Alexandre Leite, Atlas Copco Regional General Manager – Oceania, said “We have been looking for a pathway to unlock the
potential we see in the PNG market. In High Arctic we believe that we have found the right partner with a long-established
foundation in Papua New Guinea. We look for partners that share our values of Interaction with customers and stakeholders,
Commitment to the long term in PNG and Innovation reflected in everything they do. At Atlas Copco we deliver high-quality
technologies and services that optimize our customers’ productivity, competitiveness and environmental performance. By doing
so, we transform the future. I am excited to begin the journey with High Arctic to transform the future for the people of Papua
New Guinea”

Mike Maguire, added “I believe that Papua New Guinea is on the precipice of a period of major foreign investment in new and
expansionary projects that will positively contribute to the nations development. We anticipate final investment decisions on
LNG and mineral extraction projects later this year and across the rest of this decade. The Atlas Copco appointment
contributes to our diversification strategy and is perfectly timed for maximizing potential participation in future major PNG
projects. Supported by Atlas Copco’s regional technical specialists, High Arctic is well positioned to provide in-country
solutions and claim a significant share of the current sizeable and expanding PNG light equipment market.”

About Atlas Copco.

Atlas Copco’s Power Technique business area provides air, power and flow solutions through products such as mobile
compressors, pumps, light towers and generators, along with a number of complementary products. It also offers specialty
rental and provides services through a dedicated, global network. Power Technique innovates for sustainable productivity
across multiple industries, including construction, manufacturing, oil and gas and exploration drilling. The business area is
headquartered in Belgium. Product development and manufacturing units are located in Europe, Asia, South America and
North America.

Atlas Copco Australia was established in 1950. The head office is located in Blacktown, Sydney, NSW. Around Australia we
have a large number of branches and a large team of factory-trained technicians as well as well-stocked parts distribution
centres to respond around the clock

About High Arctic Overseas Holdings Corp.

High Arctic delivers drilling, equipment rentals, fire protection services, asset management and workforce solutions across
Papua New Guinea. Together, we combine international standards with local expertise and an unwavering focus on quality, to
support oil and gas, mining, and infrastructure projects nationwide.

For further information, please contact:

Mike Maguire
Chief Executive Officer
1.587.320.1301
High Arctic Overseas Holdings Corp.
Suite 2350, 330–5th Avenue SW
Calgary, Alberta, Canada T2P 0L4
www.higharctic.com
Email: info@higharctic.com
.

CALGARY, Alberta, April 30, 2026 — High Arctic Overseas Holdings Corp. (TSXV: HOH) (“High Arctic” or the “Corporation”)
has released its fourth quarter and full year 2025 financial and operating results and announces it has agreed to terms for a
two-year drilling services contract renewal with its principal customer in Papua New Guinea (“PNG”). The audited consolidated
financial statements (the “Financial Statements”) and management’s discussion & analysis (“MD&A”) for the quarter and year
ended December 31, 2025, will be available on SEDAR+ at www.sedarplus.ca. All amounts are denominated in United States
Dollars (“USD”), unless otherwise indicated.
The common shares of the Corporation began trading on the TSXV on August 16, 2024 under the trading symbol HOH.
Mike Maguire, Chief Executive Officer, commented on the Corporation’s fourth quarter of 2025 financial and operating results
and outlook:
“High Arctic’s Q4 and 2025 results reflect reduced activity in PNG with additional expenditures related to our
diversification strategy. We continue to focus on expanding our customer base for equipment rental, building out the
new Fire Services business and exploring potential acquisitions. Our strong working capital and debt-free balance
sheet position us well for future opportunities.
The drilling services contract renewal demonstrates our customer’s faith in High Arctic as a dependable provider of
critical drilling services in PNG. I am pleased to continue a relationship that now extends back two decades. Together
we have forged a strong partnership that set the benchmark for safe and efficient operations in the remote and
logistically challenging PNG environment.
While the 2-year contract renewal does not contain a specific drilling commitment, it is a strong signal of an intention to
return to work soon. We believe that the Papua-LNG project has made significant steps towards a Final Investment
Decision this year. Papua-LNG is a significant drilling opportunity that we are competitively placed for. Further, we
expect the project to stimulate other drilling activity including exploration which is High Arctic’s core specialty.”
2025 Fourth Quarter Highlights

• Drilling rig 103 remains suspended and drilling rigs 115 and 116 remain cold-stacked;
• Fire Services activities ramped up during Q4 2025, leading to an increase in revenue which was offset by a reduction in
  manpower and rental services, providing an increase in income of 4% against Q3 2025. Compared to Q4 2024, there
  was a reduction in Manpower and Rentals services as a result of customer projects winding down;
• Operating margins reduced by 1.6% against Q3 2025 as rental equipment utilizations reduced and Fire Services still
  being in a ramp up phase. Compared to Q4 2024, margins reduced as a result of lower rental equipment utilizations;
• Costs associated with the execution of the diversification strategy, increasing insurance costs, temporary allocation of
  a property lease to operating costs, increases in working capital as new customers come onboard, combined with
  reduced revenue led to $921 of cash used in operations for Q4 2025 ($248 of cash generated in Q4 2024); and
• Strong working capital position of $18.7 million maintained.
  2025 Full Year Summary
• Revenue for 2025 was $8,922, a reduction of $15,153 or 63% compared to 2024
  ? During 2024, rig 103 operated for 5 months until it was placed in suspension, it remained suspended during 2025
  and drilling rigs 115 and 116 were cold-stacked over both periods; and
  ? Manpower services and equipment rentals slowed in the second half of 2025 as customer projects started to
  wind down, this was somewhat offset by the fire services division starting to ramp up in Q4 2025.
• Operating margins reduced from 2024 of 37.7% to 20.7% in 2025 largely as a result of:
  ? Reduced equipment rental utilizations which yield higher margins;
  ? Repairs & maintenance associated with preparing the rental fleet for new markets; and
  ? Establishment of the fire services division.
• Adjusted EBITDA for 2025 was a loss of $1,642, a substantive reduction compared to 2024 EBITDA of $4,290 as a
  result of decline in revenues and reduced operating margins, together with additional general and administrative costs
  associated with:
  ? Transition of corporate services previously performed by HWO;
  ? Establishment of the fire services division; and
  ? Professional fees related to strategy development and business expansion.
• Strong liquidity with a working capital balance of $18.7 million, which includes a cash balance of $11.9 million.
  In the above results discussion, the three months ended December 31, 2025 may be referred to as the “quarter” or “Q4 2025”
  and the comparative three months ended December 31, 2024 may be referred to as “Q4 2024”. References to other quarters
  may be presented as “QX 20XX” with X/XX being the quarter/year to which the commentary relates.
  Business Strategy
  Our business strategy focused on Papua New Guinea is underpinned by the following cornerstones:
• Leveraging our core PNG planning and logistics capability to diversify our service offerings;
• Deploying idle assets into profitable operations;
• Strengthening local content & participation in the PNG finance and investment communities;
• An established and efficient corporate structure; and
• Seeking opportunities to expand and root the business in the Australasian region.
  2026 Strategic Objectives
• Relentless focus on safety excellence and quality service delivery;
• Grow the Equipment Rentals and Fire Services business offerings;
• Pursue pathways to return idle drilling assets into service;
• Maximize potential participation in future major Papua New Guinea projects; and
• Pursue expansionary transactions that increase shareholder value.
  2024 Reorganization
  Since the Corporation and HAES-Cyprus were both wholly-owned by HWO, the transfer of all of the outstanding ordinary
  shares of HAES-Cyprus to the Corporation was deemed a common control transaction. The Corporation’s Financial
  Statements are presented under the continuity of interests basis. Financial and operational results contained within this Press
  Release present the historic financial position, results of operations and cash flows of HAES-Cyprus for all prior periods up to
  August 12, 2024, under HWO’s control. The financial position, results of operations and cash flows from April 1, 2024 (the date
  of incorporation of the Corporation) to August 12, 2024, include both HAES-Cyprus and the Corporation on a combined basis
  and from August 12, 2024, forward include the results of the Corporation on a consolidated basis upon completion of the
  Arrangement.
  For reporting purposes in the Financial Statements, the MD&A and this Press Release, it is assumed that the Corporation
  held the PNG business prior to August 12, 2024, and as such, information provided includes the financial and operating results
  for the three and twelve months ended December 31, 2025, including all comparative periods.

CALGARY, Alberta, Nov. 28, 2025 – High Arctic Overseas Holdings Corp. (TSXV: HOH) (“High Arctic Overseas” or the
“Corporation”) has released its third quarter 2025 financial and operating results. The unaudited condensed interim
consolidated financial statements (the “Financial Statements”) and management’s discussion & analysis (“MD&A”) for the
quarter ended September 30, 2025, will be available on SEDAR+ at www.sedarplus.ca. All amounts are denominated in United
States dollars (“USD”), unless otherwise indicated.

The common shares of the Corporation began trading on the TSXV on August 16, 2024 under the trading symbol HOH.
Mike Maguire, Chief Executive Officer, commented on the Corporation’s third quarter of 2025 financial and operating results:
“High Arctic’s Q3 results reflect reduced current activity in PNG. Our strong working capital and debt-free balance
sheet position us well for future opportunities. We’re focused on our diversification strategy, expanding our customer
base for equipment rental and manpower services, building out the new Fire Services business and exploring potential
acquisitions. We remain optimistic about upcoming PNG major projects and have been fielding increased service
enquiries. Our strategy is to stay agile, diversify and remain ready for the next wave of expansion projects.”

2025 THIRD QUARTER HIGHLIGHTS

• Adjusted EBITDA loss increased from Q2 2025 $184 to Q3 2025 $741, largely due to the planned wind down of
  customer project activities in our manpower and rental services businesses and costs associated with establishment of
  the Fire Services business.
• Drilling activities remained consistent with Q2 2025 with continuation of Rig 103 suspension and Rigs 115 and 116 cold
  stacked.
• General & Administrative expenses have increased to $969 in Q3 2025 compared to $693 in Q2 2025 with a number of
  one-time expenses related to strategy development and corporate services; and
• Disciplined cashflow management resulted in exiting Q3 2025 with working capital of over $19 million.
  2025 YEAR TO DATE HIGHLIGHTS
• Adjusted EBITDA loss for 9 months ending 30 September 2025 of $1,008 against a gain for 9 months ending 30
  September 2024 of $4,849 is a reflection of drilling operations being suspended through year to date, 2025.
• Revenue and operating margins significantly reduced compared to Q3 2024 due to the higher portion of 2025 revenue
  activities being manpower rather than equipment, which has a higher operating cost;
• Cost to establish the Fire Services business, one off expense for strategy, corporate services and equipment readiness,
  combined with reduced revenue led to $1,464 of cash used in operations year to date 2025, versus $9,864 of cash
  generated year to date in 2024, which is reflection of cash generation through drilling activities.
  In the above results discussion, the three months ended September 30, 2025 may be referred to as the “quarter” or “Q3 2025”
  and the comparative three months ended September 30, 2024 may be referred to as “Q3 2024”. References to other quarters
  may be presented as “QX 20XX” with X/XX being the quarter/year to which the commentary relates. References to the six
  months ended June 30, 2025, may be referred to as the “first half” or “H1 2025” and the comparative six months ended June
  30, 2024 may be referred to as “H1 2024”.
  Business strategy
  Our business strategy focused on Papua New Guinea is underpinned by the following cornerstones:
• Leveraging our core PNG planning and logistics capability to diversify our service offerings;
• Deploying idle assets into profitable operations;
• Strengthening local content & participation in the PNG finance and investment communities;
• An established and efficient corporate structure; and
• Seeking opportunities to expand and root the business in the Australasian region.
  2025 Strategic Objectives
• Relentless focus on safety excellence and quality service delivery;
• Reduce general and administrative expenditures;
• Grow the manpower business in Papua New Guinea;
• Maximize potential participation in future major Papua New Guinea projects; and
• Pursue expansionary transactions that increase shareholder value.
  Since the Corporation and HAES-Cyprus were both wholly-owned by HWO, the transfer of all of the outstanding ordinary
  shares of HAES-Cyprus to the Corporation was deemed a common control transaction. The Corporation’s Financial
  Statements are presented under the continuity of interests basis. Financial and operational results contained within this Press
  Release present the historic financial position, results of operations and cash flows of HAES-Cyprus for all prior periods up to
  August 12, 2024, under HWO’s control. The financial position, results of operations and cash flows from April 1, 2024 (the date
  of incorporation of the Corporation) to August 12, 2024, include both HAES-Cyprus and the Corporation on a combined basis
  and from August 12, 2024, forward include the results of the Corporation on a consolidated basis upon completion of the
  Arrangement.
  For reporting purposes in the Financial Statements, the MD&A and this Press Release, it is assumed that the Corporation
  held the PNG business prior to August 12, 2024, and as such, information provided includes the financial and operating results
  for the three and nine months ended September 30, 2025, including all comparative periods.

Calgary, Alberta – August 28, 2025 — High Arctic Overseas Holdings Corp. (TSXV: HOH) has reported its financial and operating results for the second quarter ended June 30, 2025. The company highlighted disciplined cost management and continued diversification despite subdued drilling activity in Papua New Guinea (PNG).

Financial Performance
Revenue for the quarter was USD $2.37 million, down from $7.63 million in Q2 2024, reflecting the suspension of Rig 103 and the continued cold-stack of Rigs 115 and 116. The company recorded a net loss of $0.52 million, compared to a $0.03 million loss in the same quarter last year. Adjusted EBITDA showed a small loss of $0.18 million, an improvement over Q1’s $0.20 million loss.

For the first half of 2025, revenue totalled $4.88 million versus $18.76 million in H1 2024. The company reported a net loss of $1.75 million for the period, compared to income of $2.47 million last year.

Operational Highlights

• Drilling operations remained suspended through the quarter.
• Revenue was largely driven by manpower and equipment rentals, though volumes declined as a major customer wound down a project.
• General and administrative expenses fell to $0.69 million, from $0.92 million in Q1, reflecting the shift of corporate functions to Australia and cost reductions.
• High Arctic ended the quarter with strong liquidity, reporting $20 million in working capital and $13.8 million in cash.
  

Strategic Outlook
CEO Mike Maguire emphasised the company’s continued diversification strategy, including the launch of High Arctic Fire Services, a new division focused on fire prevention, detection, and suppression systems for PNG’s extractive industries. Initial revenues are expected in Q3 2025.

Looking forward, High Arctic anticipates subdued activity for the remainder of 2025, with manpower and rentals as primary revenue drivers. However, management highlighted increasing enquiries and preparations for a new cycle of major LNG projects in PNG, including Papua LNG and P’nyang. Both developments are expected to generate significant drilling demand later this decade.

“Our extensive experience in PNG positions us to support upcoming projects with safe, efficient services,” Maguire said. “We remain disciplined on costs while preparing to capture opportunities in LNG, mining, and infrastructure.”