Interim Financial Report - Q1 2026

INTERIM FINANCIAL REPORT

Q1 2026

WE SHAPE THE FUTURE.

WITH EXPERIENCE, A SPIRIT OF INNOVATION AND THE

HIGHEST STANDARDS,

WE ARE SETTING OUT FOR NEW HORIZONS.

2 INTERIM REPORT Q1 2026 | MONTANA AEROSPACE AG

MONTANA AEROSPACE AG -SELECTED KEY FIGURES

* The comparative information has been restated due to a discontinued operation (see note 9). However, cash flow activities, free cash flow, CAPEX spent, and balance sheet positions include continued and discontinued operations.

** Comparison period is 31 December 2025.

3 INTERIM REPORT Q1 2026 | MONTANA AEROSPACE AG

TABLE OF CONTENTS

MONTANA AEROSPACE AG - SELECTED KEY FIGURES 3

FINANCIAL OVERVIEW 5

CONDENSED CONSOLIDATED INTERIM FINANCIAL STATEMENTS 10

ABOUT MONTANA AEROSPACE 29

DISCLAIMER 30

4 INTERIM REPORT Q1 2026 | MONTANA AEROSPACE AG

FINANCIAL OVERVIEW

Earnings

* EBITDA is calculated as result for the period before income tax expense, interest income, other financial income, interest expenses, other financial expenses and depreciation and amortization.

** The comparative information has been restated due to a discontinued operation (see Note 9).

*** The Group has elected to present the result after tax of the discontinued operation in a separate amount in the statement of comprehensive income and has disaggregated this separate amount into revenue, expenses and result before tax in Note 9.

Net Sales

In the first quarter of 2026, Montana Aerospace generated consolidated net sales of EUR 248.2 million, an increase of 4.1% on the EUR 238.4 million generated in the first quarter of 2025. This positive net sales development was driven by organic growth, primarily due to increased volumes and gains in market share within the Aerostructures segment. We expect this positive trajectory to persist through the remaining quarters of 2026, supported by the typical seasonality of the aerospace sector, where deliveries are generally softer in the first quarter and strengthen as the year progresses.

EBITDA

Adjusted EBITDA totaled EUR 40.6 million, marking a 5.8% increase on the EUR 38.3 million generated in the first quarter of 2025. This translates to an increase in the Group's EBITDA margin to 16.4%, up from 16.1% in the same period last year. The increase in EBITDA was primarily driven by top-line growth and incremental margin expansion, reflecting continued strong operational performance. The Company expects continued production volume growth linked to the industry-wide ramp-up to contribute to further margin expansion by improving the utilization of the fixed cost base. Reported EBITDA was equal to adjusted EBITDA in the first quarter of 2026.

Net Sales and adj. EBITDA development by segment

The Aerostructures segment generated net sales of EUR 233.5 million, an increase of 5.5% on the EUR 221.3 million generated in the first quarter of 2025. This growth was driven by continued expansion with existing customers, which was achieved through increased production rates and incremental gains in market share and was complemented by new business wins with leading aerospace companies.

As a key strategic partner of leading OEMs, Montana Aerospace should continue to benefit from strong industry tailwinds arising from the growth of global air travel and the need to modernize fleets, which tailwinds have resulted in substantial order backlogs for our customers. The Company believes that this provides Montana Aerospace with an opportunity for future growth as their trusted supplier.

Adjusted EBITDA for the Aerostructures segment increased from EUR 39.9 million in the first quarter of 2025 to

EUR 42.5 million in the first quarter of 2026, representing growth of 6.5%. This growth rate exceeded the net sales growth of the segment. Consequently, the adjusted EBITDA margin expanded to 18.2%, up from 18.0% in the first quarter of 2025.

Alpine Metal Tech segment

The Alpine Metal Tech segment generated net sales of EUR 14.7 million, a decrease of 14.1% on the EUR 17.1 million generated in the first quarter of 2025. This decrease was attributed to certain delivery shifts. The segment's adjusted EBITDA was EUR -0.6 million in the first quarter of 2026, compared to EUR 0.6 million in the same period last year.

Operating Result (EBIT)

Depreciation and amortization expenses totaled EUR 23.4 million in the first quarter of 2026, up from EUR 22.7 million in the same period last year. No impairment losses were recorded in the first quarter of 2026.

In line with EBITDA, EBIT increased to EUR 17.2 million in the first quarter of 2026, up from EUR 15.5 million in the same period last year. Consequently, the EBIT margin expanded to 6.9%, up from 6.5% in the first quarter of 2025.

Financial Result

The financial result totaled EUR -6.1 million in the first quarter of 2026, compared to EUR -13.8 million in the same period last year. This improvement was primarily driven by lower non-cash foreign exchange losses and net interest expenses.

Result from continuing operations

Result from continuing operations totaled EUR 10.5 million, marking a 130.7% increase on the EUR 4.5 million generated in the first quarter of 2025. This positive development was driven by improved operating performance and a better net financial result. This has also led to a strong increase in the earnings per share to EUR 0.17, up from EUR 0.07 in the same period last year.

Trade working capital

The trade working capital balance amounted to EUR 335.1 million at the end of March 2026, equivalent to around 34% of net sales over the last twelve months. This level of working capital intensity is within our sustainable range, reflecting the seasonal effects typical of the aerospace manufacturing production cycle and our initiative to add safety stock to protect against shortages of raw materials.

Cash flow statement

* Including discontinued operation (Energy segment).

In the first quarter of 2026, Montana Aerospace generated an operating cash flow of EUR 1.4 million, compared to EUR

-5.4 million in the same period last year. This increase was primarily driven by improved net income and was further complemented by investing cash flow, which amounted to EUR 54.5 million in the first quarter of 2026, compared to EUR

-19.6 million in the same period last year.

Supported by the proceeds from the divestment of the Energy segment and overall, a robust performance, free cash flow in the period from January - March 2026 amounted to EUR 55.9 million, up from EUR -25.0 million in Q1 2025.

Net cash from financing activities amounted to EUR -73.7 million (Q1 2025: 15.4 million) and reflects largely repayment of Group loans.

Net debt

The net debt balance amounted to EUR 73.3 million at the end of March 2026, equivalent to 0.4x the reported EBITDA generated over the last twelve months (31 December 2025: 0.8x). The Company's continued improvement in financial position is made possible through the repayment of outstanding loans using improved cash flow from operating activities and the proceeds from the divestment of the Energy segment. This supports the Company's goal of achieving a net cash financial position by the end of 2026.

Balance sheet

As of March 31st, 2026, total assets amounted to EUR 1,556.7 million (31 December 2025: EUR 1,597.6 million). Total non-current assets of EUR 942.3 million (31 December 2025: EUR 1,014.1 million) included mainly intangible assets and goodwill of EUR 277.7 million (31 December 2025: EUR 280.9 million) and property, plant, and equipment of EUR 541.9 million

(31 December 2025: EUR 547.6 million). Within the total current assets of EUR 614.4 million (31 December 2025:

EUR 583.5 million), inventories amounted to EUR 292.2 million (31 December 2025: EUR 270.2 million), trade receivables to EUR 153.9 million (31 December 2025: EUR 119.3 million), other receivables and assets to EUR 48.9 million

(31 December 2025: EUR 50.8 million), and cash and cash equivalents to EUR 95.6 million (31 December 2025:

EUR 112.8 million).

Total liabilities were at EUR 535.7 million as of 31st of March 2026 (31 December 2025: EUR 599.7 million), of which EUR 249.2 million are current liabilities (31 December 2025: EUR 241.7 million) and EUR 286.5 million are non-current liabilities (31 December 2025: EUR 358.0 million).

Non-current liabilities included mainly bank loans and borrowings of EUR 118.3 million (31 December 2025: EUR 188.3 million), other financial liabilities of EUR 45.0 million (31 December 2025: EUR 45.5 million) and other liabilities and accruals of EUR 38.7 million (31 December 2025: EUR 38.0 million).

Current liabilities included mainly trade payables of EUR 120.6 million (31 December 2025: EUR 119.5 million) and other liabilities and accruals of EUR 63.2 million (31 December 2025: EUR 65.3 million).

Total equity increased to EUR 1,021.0 million (31 December 2025: EUR 997.8 million) and included EUR 811.6 million of share premium (31 December 2025: EUR 808.4 million). Montana Aerospace equity ratio as of 31 March 2026 was 65.6%

(31 December 2025: 62.5%) underlying Group's solid financial position.

Supplemental financial information

USAGE OF ALTERNATIVE PERFORMANCE MEASURES

Montana Aerospace AG is managed in accordance with internally defined financial and non-financial key figures in the interest of achieving a sustainable increase in value. The following key financial figures are used for the purpose of value-oriented management and in the context of the Q1 2026 Interim Report:

• Organic Growth refers to increases in net sales (in %) excluding any contributions from acquired companies.
• EBITDA refers to result for the period before income tax expense, interest income, other financial income, interest expenses, other financial expenses and depreciation and amortization.
• Adjusted EBITDA refers to result for the period before income tax expense, interest income, other financial income, interest expenses, other financial expenses and depreciation and amortization adjusted for one-off effects.
• Operating Cash Flow is defined as net cash used / provided in operating activities.
• Investing Cash Flow is defined as net cash used in / from investing activities.
• Financing Cash Flow is defined as net cash used in / from financing activities.
• Free Cash flow is defined as the sum of operating cash flow and investing cash flow.
• CAPEX (capital expenditures) refers to payments made for purchase of PPE and intangible assets.
• Equity Ratio refers to total equity in % of total equity and liabilities.
• Trade Working Capital includes trade receivables and inventories less trade payables and advances received from customers.

CONDENSED

CONSOLIDATED INTERIM FINANCIAL STATEMENTS

31 MARCH 2026

CONSOLIDATED STATEMENT OF FINANCIAL POSITION 12

CONSOLIDATED STATEMENT OF PROFIT OR LOSS 13

CONSOLIDATED STATEMENT OF PROFIT OR LOSS AND OTHER COMPREHENSIVE INCOME 14

CONSOLIDATED STATEMENT OF CASH FLOWS 15

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY 2026 16

CONSOLIDATED STATEMENT OF CHANGES IN EQUITY 2025 16

REPORTING ENTITY 17

BASIS OF ACCOUNTING 17

USE OF JUDGEMENTS AND ESTIMATES 18

CHANGES IN MATERIAL ACCOUNTING POLICIES 18

SEGMENT REPORTING 19

FINANCIAL INSTRUMENTS - FAIR VALUES AND RISK MANAGEMENT 22

EQUITY 25

OTHER FINANCIAL EXPENSES 27

DISCONTINUED OPERATIONS 27

SHARE-BASED PAYMENT ARRANGEMENTS 28

CONSOLIDATED STATEMENT OF CASH FLOW 29

SUBSEQUENT EVENTS 29

Consolidated statement of financial position

(unaudited)

Intangible assets and goodwill Property, plant and equipment Equity-accounted investees Loans

Other financial assets

Other receivables and assets Deferred tax assets

Inventories Contract assets Trade receivables

Income tax receivables

Receivables from affiliated companies Other receivables and assets

Cash and cash equivalents

Share capital Share premium Retained earnings

Non-controlling interests

Loans and borrowings Other financial liabilities Deferred tax liabilities Provisions

Employee benefits Contract liabilities

Other liabilities and accruals

Loans and borrowings Other financial liabilities Tax liabilities

Provisions Employee benefits Trade payables Contract liabilities

Liabilities from affiliated companies Other liabilities and accruals

The notes on pages 17 to 29 are an integral part of these condensed consolidated interim financial statements.

Consolidated statement of profit or loss

(unaudited)

Change in finished and unfinished goods Own work capitalized

Other operating income

Cost of materials, supplies and services Personnel expenses

Other operating expenses

Depreciation and amortization

Interest income Interest expenses Other financial income

Other financial expenses

Income tax result

Result from discontinued operations, net of tax***

Thereof attributable to:

Owners of Montana Aerospace AG Non-controlling interests

Basic earnings per share Diluted earnings per share

Basic earnings per share Diluted earnings per share

* EBITDA is calculated as result for the period before income tax expense, interest income, other financial income, interest expenses, other financial expenses and depreciation and amortization.

** The comparative information has been restated due to a discontinued operation (see note 9).

*** The Group has elected to present the result after tax of the discontinued operation in a separate amount in the statement of comprehensive income and has disaggregated this separate amount into revenue, expenses and result before tax in note 9.

The notes on pages 17 to 29 are an integral part of these condensed consolidated interim financial statements.

Consolidated statement of profit or loss and other comprehensive income

(unaudited)

Effective portion of changes in fair value of cash flow hedges Foreign exchange differences

Related taxes

Thereof attributable to:

Owners of Montana Aerospace AG Non-controlling interests

The notes on pages 17 to 29 are an integral part of these condensed consolidated interim financial statements.

Consolidated statement of cash flows

(unaudited)

* The Group has chosen to present a consolidated cash flow statement that breaks down all cash flows in their entirety - that is, including continuing and discontinued operations. The notes on pages 17 to 29 are an integral part of these condensed consolidated interim financial statements.

Consolidated statement of changes in equity 2026

(unaudited)

Consolidated statement of changes in equity 2025

(unaudited)

The notes on pages 17 to 29 are an integral part of these condensed consolidated interim financial statements.

NOTES

to the condensed consolidated interim financial statements (unaudited)

1. Reporting entity

   Montana Aerospace AG ("Montana Aerospace" or "the Company") is a worldwide supplier of structural parts for the aerospace and energy industries and was incorporated on 25 November 2019 in Switzerland with its registered office in Reinach, Switzerland. These condensed consolidated interim financial statements as at and for the three months ended 31 March 2026 comprise the Company and its subsidiaries (collectively the 'Group' and individually 'Group companies').

   The controlling parent company of Montana Aerospace is Montana Tech Components AG.

2. Basis of accounting

   These interim financial statements have been prepared in accordance with IAS 34 Interim Financial Reporting and should be read in conjunction with the Group's last annual consolidated financial statements as at and for the year ended 31 December 2025 ("last annual financial statements"). They do not include all of the information required for a complete set of financial statements prepared in accordance with IFRS Accounting Standards. However, selected explanatory notes are included to explain events and transactions that are significant to an understanding of the changes in the Group's financial position and performance since the last annual financial statements.

   The accounting policies adopted are consistent with those of the previous financial year (last annual consolidated financial statements of Montana Aerospace as of 31 December 2025). Amendments to IFRS accounting standard that are effective as of 1 January 2026 have no material effect on the Group's financial statements. The Group's sales were not subject to seasonal variations during the reporting period.

   The consolidated interim financial statements have been prepared under the historical cost convention, unless otherwise indicated. All amounts are in thousands of euros unless otherwise stated.

   These interim financial statements were authorised for issue by the Board of Directors on 4 May 2026.

3. Use of judgements and estimates

   In preparing these interim financial statements, management has made judgements, estimates and assumptions that affect the application of the Group's accounting policies and the reported amounts of assets, liabilities, income and expenses.

   Actual results may differ from these estimates.

   The significant judgments made by management in applying the Group's accounting policies and the key sources of estimation uncertainties were the same as those described in the last annual financial statements of Montana Aerospace.

   1. Measurement of fair values

      A number of the Group's accounting policies and disclosures require the measurement of fair values, for both financial and non-financial assets and liabilities.

      When measuring the fair value of an asset or a liability, the Group uses observable market data as far as possible. Fair values are categorised into different levels in a fair value hierarchy based on the inputs used in the valuation techniques as follows.

      • Level 1: quoted prices (unadjusted) in active markets for identical assets or liabilities.
      • Level 2: inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly (i.e. as prices) or indirectly (i.e. derived from prices).
      • Level 3: inputs for the asset or liability that are not based on observable market data (unobservable inputs).

      If the inputs used to measure the fair value of an asset or a liability fall into different levels of the fair value hierarchy, then the fair value measurement is categorised in its entirety in the same level of the fair value hierarchy as the lowest level input that is significant to the entire measurement.

      The Group recognises transfers between levels of the fair value hierarchy at the end of the reporting period during which the change has occurred.

4. Changes in material accounting policies

   The accounting policies applied in these consolidated interim financial statements are the same as those applied in the Group's consolidated financial statements as at and for the year ended 31 December 2025. Amendments which apply for the first time in 2026 had no material impact on the condensed interim financial statements.

5. Segment reporting

   1. Basis for segmentation

      Operating segments requiring to be reported are determined on the basis of a management approach. Accordingly, external segment reporting reflects the internal organizational and management structure used within the Group as well as internal financial reporting to the chief operating division maker. In the case of Montana Aerospace, the chief operating decision maker is the Board of Montana Aerospace AG.

      The reporting is divided into the reportable segments "Aerostructures" and "Alpine Metal Tech". In addition, unallocated facts are reported separately under "Corporate & Eliminations".

      Aerostructures

      The Aerostructures segment is a key partner for aircraft manufacturers. The segment develops and manufactures aircraft parts. The Group's product portfolio ranges from structural components for fuselage, wings and landing gear to critical engine components subject to high thermal and mechanical loads, and functional components for the cabin interior.

      Alpine Metal Tech

      The Alpine Metal Tech segment is one of the leading international industrial companies and is a provider of customized high-tech solutions for the Steel, Automotive and Aerospace industries.

      The accounting and measurement policies for the segment reporting are based on the IFRS used in the present consolidated financial statements. The Board of Directors (CODM) uses adjusted EBITDA for management purposes.

      The adjustments are made to eliminate non-operational expenses and income not attributed to management performance. The following were incurred during the reporting and comparison period:

      For the three months ended 31 March

      (in TEUR)	2026	2025
      EBITDA as reported	40,588	38,179
      Stock option plans (share-based payments)		170
      Adjusted EBITDA	40,588	38,349

   2. Information according to reportable segments

      The management variables, which are used to assess the performance of the operating segments, are shown below:

      Reportable segments Discontinued operations*

      (in TEUR)	2026	2025	2026	2025	2026	2025	2026	2025
      External net sales	233,528	221,323	14,664	17,068			248,192	238,391
      Total Net Sales	233,528 42,468	221,323	14,664 -558	17,068	-1,322		248,192 40,588	238,391
      Adjusted EBITDA		39,893		617		-2,161		38,349
      Non-operative income and expenses						-170		-170
      EBITDA	42,468	39,812	-558	617	-1,322	-2,250	40,588	38,179
      Depreciation and amortization	-22,541	-21,520	-1,049	-1,197	159	52	-23,431	-22,665
      Operating result							17,157	15,514
      Financial result							-6,149 11,008	-13,783
      Result before tax								1,731
      Income tax result							-526	2,814
      Result from continuing operations							10,482	4,545
      Result from discontinued operation, net of tax								727
      Result for the period							10,482	5,272
      Investments	8,121	23,138	553	637	59	119	8,733	23,894

      2026	2025
      	170,377
      	170,377
      	10,359
      	10,359
      	-2,231
      	6,278

      Aerostructures Alpine Metal Tech Corporate & Eliminations Group Energy For the three months ended 31 March

      * Further information relating to discontinued operations see note 9.

      A summary of the elimination of intra-Group interdependencies is provided in the "Corporate & Eliminations" column. This column also contains facts that are not directly allocated to any segment.

   3. Entity-wide disclosures

      INFORMATION BY GEOGRAPHICAL SEGMENT For the three months ended 31 March

      	2026		2025
      		Non-current		Non-current
      (in TEUR)	Net Sales*	assets**	Net Sales*	assets**
      Switzerland	513	72	117	46
      Germany	42,729	15,659	43,725	14,273
      Austria	428	35,051	2,120	58,153
      UK	26,891	1,030	32,594	1,189
      Poland	1,195		1,844
      Turkey	1,233		1,203
      France	8,756	3,403	9,018	3,843
      Spain	949	2	1,026	2
      Italy	1,975	2,547	4,055	4,124
      Sweden	507		613
      Romania	1,212	308,862	3,485	337,044
      Belgium	9,835	186,379	15,483	189,302
      Ireland	9,649		7,263
      Netherlands	4,587		4,585
      Hungary	3,605		1,519
      Rest of Europe	2,195	20	1,581	21,401
      USA	106,014	163,061	86,446	180,742
      Canada	3,460	21,056	4,715	22,945
      Mexico	135		214
      Brazil	543	112	748	37,892
      Rest of America	47		130
      China	3,727	66	3,446	9,088
      India	2,020		1,175	7,468
      Vietnam	2,820	82,335	1,178	83,927
      Rest of Asia	12,157		8,854
      Africa, Australia and New Zealand	1,011		1,254
      Total	248,192	819,656	238,391	971,439

      * The geographic information on revenues in the table above is based on the customers' location.

      ** Non-current assets include in this respect property, plant and equipment and intangible assets.

      PRODUCTS AND SERVICES

      The Group's revenues and trade receivables are split into the following products and services:

      For the three months ended 31 March

      	2026		2025
      (in TEUR)	Net Sales	Trade receivables	Net Sales	Trade receivables
      thereof product sales	246,415	152,225	236,293	178,822
      thereof service sales	1,778	1,627	2,098	2,171
      Total	248,192	153,852	238,391	180,993

      KEY ACCOUNTS

      For the three months ended 31 March 2026, net sales with 2 customers accounted for 10% or more each of the Group's net sales. These customers contributed 30% and 26% respectively to the Group's net sales and are entirely attributable to the Aerostructures segment.

      For the three months ended 31 March 2025, net sales with 3 customers (whereas 2 of these merged in December 2025) accounted for 10% or more each of the Group's net sales. These customers contributed 29%, 12% and 11% respectively to the Group's net sales and are entirely attributable to the Aerostructures segment.

6. Financial instruments - fair values and risk management

   Accounting classifications and fair values

   The following table shows the carrying amounts and fair values of financial assets and financial liabilities, including their levels in the fair value hierarchy. It does not include fair value information for financial assets and financial liabilities not measured at fair value if the carrying amount is a reasonable approximation of fair value.

   Fair values for trade and other receivables, trade and other payables, bank loans and borrowings and loan liabilities from affiliated companies are not included in the table below. Their carrying amount is a reasonable approximation of fair value. Bank loans and borrowings are mainly bearing variable interest rates.

   Total

* Does not include accrued interest TEUR 22.

** Does not include other payments received TEUR 1,698.

*** Does not include deferred income TEUR 4,378, derivatives TEUR 4,663, government aid & grants TEUR 38,886 and liabilities from other taxes as well as in the context of social security TEUR 8,550.

* Does not include accrued interest TEUR 21.

** Does not include other payments received TEUR 533.

*** Does not include deferred income TEUR 3,198, derivatives TEUR 2,142, government aid & grants TEUR 39,911 and liabilities from other taxes as well as in the context of social security TEUR 16,059.

1. Equity

   1. Share capital

      In the current fiscal year, the Company executed capital increases amounting to TEUR 3,339. Therefore, 153,668 new ordinary shares of a nominal value of CHF 1.00 each out of its authorized capital were issued.

      As of 31 March 2026, the total authorized and issued number of ordinary shares comprises 62,680,300 shares with a nominal value of CHF 1.00 each. The split of the capital stock is shown in the table below.

      CAPITAL STOCK	31 March 2026	31 December 2025
      Nominal value per share (CHF)	1.00	1.00
      Total number of shares	62,680,300	62,526,632
      Total amount of share capital (CHF)	62,680,300	62,526,632
      Total amount of share capital (EUR)	57,224,264	57,056,651

      The Principal Shareholder (Montana Tech Components AG) holds 43.04% of the shares as of 31 March 2026.

   2. Earnings per share

      The calculation of earnings per share has been based on the profit or loss attributable to shareholders of Montana Aerospace AG as presented in the consolidated statement of profit or loss and the weighted average of shares in circulation as of

      31 March 2026.

      	2026	2025
      Weighted average of ordinary shares in circulation as of 31 March	62,603,466	62,006,254

      For the three months ended 31 March

      (in TEUR)	2026	2025
      Result of the period attributable to owners of Montana Aerospace AG	10,340	5,269

      For the three months ended 31 March

      (in EUR)

      2026

      2025

      EARNINGS PER SHARE

      Basic earnings per share	0.17 0.17	0.08
      Diluted earnings per share		0.08

      EARNINGS PER SHARE - CONTINUING OPERATIONS

      Basic earnings per share	0.17	0.07
      Diluted earnings per share	0.17	0.07

   3. Nature and purpose of reserves

      The translation reserves comprise all foreign currency differences arising from the translation of the financial statements of foreign operations.

      Remeasurements of the net defined benefit liabilities are charged or credited to other comprehensive income in the period in which they arise.

   4. Dividends

      The Company has not paid any dividends in the periods presented.

2. Other financial expenses

   The decrease in other financial expenses for the three months ended 31 March 2026 compared to the three months ended 31 March 2025 mainly relates to lower exchange rate losses.

3. Discontinued operations

   1. Energy (ASTA Group)

      The segment "Energy" was sold on 25 September 2025. Since this group represented a major line of business of the group, it is to be classified as a discontinued operation.

      The previous year's figures in the consolidated statement of comprehensive income were adjusted accordingly to show the discontinued operation separately from continuing operations.

      1. Results of discontinued operation

         For the three months ended 31 March (in TEUR) 2025

         External net sales 170,377

         Other income 7,717

         External expenses -173,952

         thereof depreciation and amortization -2,231

         Results from operating activities 4,142

         Income tax -3,415

         Results from discontinued operations, net of tax 727

         Basic earnings (loss) per share (EUR) 0.01

         Diluted earnings (loss) per share (EUR) 0.01

      2. Cash flows from discontinued operation

         	For the three months ended 31 March
         (in TEUR)	2025
         Net cash from operating activities	-4,013
         Net cash from investing activities	-6,915
         Net cash from financing activities	13,946
         Net cash flows for the year	3,018

4. Share-based payment arrangements

   1. Management stock option program 2021 (MSOP 2021)

      The management stock option program (MSOP) was launched by the parent company Montana Tech Components AG, Reinach, Switzerland, to allow employees to subscribe to ordinary shares in Montana Aerospace AG. The vesting period on which the program is based amounts to five years. The share-based payment arrangement requires employees to be in an active employment relationship with the company whenever options are exercised.

      As of 16 December 2022, Montana Tech Components AG and Montana Aerospace AG agreed to transfer all rights and obligations in relation to the options vesting from 2023, to Montana Aerospace AG.

      The expense in the income statement (personnel expenses) for share-based payment as well as the effects in equity were completely recognized by 31 December 2025.

   2. Management stock option program 2022 (MSOP 2022)

      In 2022, a further management stock option program (MSOP) was launched by the companies Montana Tech Components AG, Reinach, Switzerland (300,000 options; exercise price CHF 25.65), and Montana Aerospace AG, Reinach, Switzerland (150,080 options; exercise price CHF 18.00), to allow employees to subscribe to ordinary shares in Montana Aerospace AG. The vesting period on which the program is based amounts to three years. The share-based payment arrangement requires employees to be in an active employment relationship with the company whenever options are exercised.

      The expense in the income statement (personnel expenses) for share-based payment as well as the effects in equity were completely recognized by 31 December 2025.

   3. Management stock option program 2023 (MSOP 2023)

      In 2023, a further management stock option program (MSOP) was launched by Montana Aerospace AG, Reinach, Switzerland, to allow employees to subscribe to ordinary shares in Montana Aerospace AG. The vesting period on which the program is based amounts to two years. The share-based payment arrangement requires employees to be in an active employment relationship with the company whenever options are exercised.

      The expense in the income statement (personnel expenses) for share-based payment as well as the effects in equity were completely recognized by 31 December 2025.

   4. Management stock option program 2024 (MSOP 2024)

      In 2024, a further management stock option program (MSOP) was launched by Montana Aerospace AG, Reinach, Switzerland, to allow employees to subscribe to ordinary shares in Montana Aerospace AG. The vesting period on which the program is based amounts to one year. The share-based payment arrangement requires employees to be in an active employment relationship with the company whenever options are exercised.

      The expense in the income statement (personnel expenses) for share-based payment as well as the effects in equity were completely recognized in 2024.

5. Consolidated statement of cash flow

   1. Disposal of subsidiaries, net of cash disposed of

      The item "Disposal of subsidiaries, net of cash disposed of" refers to cash inflows relating to previous years' disposal.

   2. Repayment of loans granted to related parties

      The item "Repayment of loans granted to related parties" refers to payments received from the Energy segment sold in the previous year.

   3. Repayment of interest-bearing liabilities

      Item "Repayment of interest-bearing liabilities" mainly refers to early repayment of loans (EUR 30 million) as well as to temporary lower utilization of revolving credit facilities (EUR 40 million).

   4. Payments of lease liabilities

      As of 31 March 2026, the increase in payments of lease liabilities compared to the three months ended 31 March 2025 mainly relates to repayments received in the previous year in connection with lease prepayments.

6. Subsequent events

No events took place between 31 March 2026 and 4 May 2026 that would require adjustments to the carrying amounts of the assets or liabilities in these condensed consolidated interim financial statements or would need to be disclosed here.

ABOUT MONTANA AEROSPACE

~CHF 1.600m

Market capitalization

(as per 31 March 2026)

International Reporting Standard at

SIX Swiss Exchange in Zurich

Stock Exchanges

Free Float

Number of shares 62,680,300

Montana Tech

Components AG

May 12th 2021

Initial listing

AERO

Ticker symbol

CH1110425654 /111 042 565

ISIN

SHAREHOLDER STRUCTURE

BASIC INFORMATION

Montana Aerospace focus on key parts and technologies in the aerospace market with a global operational presence. Montana Aerospace manufactures state-of-the-art components for the aerospace industry due to its multi-material capabilities and outstanding technical expertise. As a customer-oriented company, Montana Aerospace drives the research and development of new parts and solutions together with its customers. Due to the high level of integration in the aerospace value chain and the unique business model, Montana Aerospace meets the needs of its customers and has built long-term relationships over decades.

DISCLAIMER

Some of the information contained in this press release may be forward-looking statements. Montana Aerospace cautions that such forward-looking statements are not guarantees of future performance and involve risks and uncertainties, and that actual results may differ materially from those in the forward- looking statements as a result of various factors. Montana Aerospace undertakes no obligation to publicly update or revise any forward-looking statements.

All figures contained in this report are unaudited. This Q1 2026 report can be downloaded at https://www.montana-aerospace.com

CONTACT

Marc Vesely recte Riha. MSc (WU) Head of M&A and Investor Relations Montana Aerospace AG ir@montana-aerospace.com

M: +43 664 61 26 261

T: +43 1 961 0692 189

PUBLISHED AND EDITED BY

Montana Aerospace AG, Reinach, Switzerland

DESIGN

Peter Rieder, flammen.at Büro X Wien, buerox.at

© Montana Aerospace AG 2026