Semi-annual Report 2025

R6S Group

Table of Contents

Semi-annual Repos 2025

Shareholder Letter

Key Facts 5

Business Update

ESG and Sustainability

Consolidated Financial Statements II

Consolidated profif b‹ loss stafemenf Consolidated balance sheet Consolidated cash flow sfatemenf

Consolidated stafemenf of changes in equify Condensed Nofes fo Financial Sfatemenfs

Group Structure and Shareholders 20

Published Information, Corporate Calendar and Contacts 24

2

Shareholder Letter

Heinz Kunderl, Chairman of fhe Board of Directors of R&S Group and Eduardo Terzi Chief Executive Officer of R&S Group

Dear Shareholders

We are pleased to report on the performance and highlights of R&S Group Holding AG («R&5 Group») for the first half of 2025. This marked an important new chapter in the group's journey. A period of strategic progress, organizational transition, and continued growth momentum, underpinned by the global push for electrification and grid modernization.

R&5 Group delivered a solid financial performance in the first half of 2025. We managed to maintain our growth trajectory in an evolving market environment, with revenues rising year-over-year and profit levels reflecting the successful execution of our operational and strategic initiatives. R&5 Group benefited from strong order intake, a healthy backlog, and continued good margins thanks to disciplined cost management and positive contributions from recent investments and the acquisition of Kyte Powerfech.

In the first quarter of the year, we concluded the formal integration of Kyte Powertech. This strategic step marks an important milestone for the Group, and we are already seeing the benefits of bringing our teams and capabilities closer together. Looking ahead, we will continue to pursue efficiency measures in operations as well as promising up- and cross-selling initiatives across the group's markets and customer base, which will support growth in the medium and long term.

Shareholder Letter

Another milestone was the official inauguration of our new oil distribution transformer plant in Krzeczéw near Bochnia, Poland, on 3 April 2025. The opening of our new facility, which represents our commitment to investing in capacity, operational excellence, and proximity to core European marktes, was marked by a memorable ribbon-cutting ceremony attended by key customers and government officials. Albeit slower than anticipated, deliveries from this state-of-the-art facility are now underway, strengthening our ability to deliver reliable, high-quality transformers at scale to meet the growing demand for resilient energy infrastructure.

In early May, we saw the full exit of CG5, the former owner of R6‹5 Group, via the placement of its last stake with a broad base of Swiss and international institutional investors. This transaction substantively increased our free-float and improved share liquidity, while also diversifying and strengthening our shareholder base. We are grateful to CG5 for its strategic support in recent years and are pleased to now engage with an even more diverse investor community.

This period also brought a leadership change at the top, with Markus Laesser deciding to step down as CEO. We thank him sincerely for his contributions. We welcomed Eduardo Terzi as the new Group CEO on 1 June 2025. Eduardo brings a wealth of deep experience in the global transformer and energy market. Together with the entire management team, he is committed to leading R&5 Group through its next phase of growth and value creation.

The global trends powering our industry remain robust. Energy consumption, electrification and grid modernization are accelerating across all key markets, underpinning the demand for quality transformer solutions. Our investments in technology and capacity expansion position us to capitalize on these trends and deliver sustained growth. Given the positive business momentum in the first half, robust performance, and a healthy order backlog, we remain confident of being able to deliver profitable growth while continuing to invest more in innovation, operational excellence, and customer relationships.

Sincerely,

Sissach, 10 September 2025

Heinz Kunderf

Chairman of the Board of Directors

Eduardo Terzi

Chief Executive Officer

4

in MCHF

Order backlog

Nef sales

EBIT

EBIT morgin

employees

Profif margin

growtlJ rates for oi der backlog and net sales inc luding Kyte Powei tech Ltd. (not included in previous year)

Profif offer fax Free cash flow Number of

Business Update

R6‹5 Group achieved a good operating performance in the first half of 2025, despite delays in the ramp-up of the new oil distribution transformer plant in Krzeczow near Bochnia. All product groups contributed to the good result. The reported top-line figures increased significantly, also as a result of the contribution of Kyte Powertech for the full half year. As expected and announced earlier, the Group's profitability declined slightly due to portfolio effects from the Kyte acquisition. Demand remained high in the main markets of Switzerland, Italy, and Poland. Particularly encouraging has been our successful expansion into the new markets of Germany, the Nordics and Baltic countries, and the continued demand for large power transformers. Equally promising are sales efforts in new applications such as data centers and harbor electrification. Germany's share of R&S Group's total net sales increased to 12.5% by mid-2025. Kyte Powertech's "home markets" Ireland and the United Kingdom also performed well in the first six months of 2025, albeit sligthly more restrained than during the last four months of 2024.

The following table shows R&5 Group's results for the first half of 2025:

1. Excluding M6A costs of J.5 MCHF.

2. Excluding subsequent tax payments in Italy of 3.7 MCHF (cash impacf of 2 MCHF for HI 2024).

3. Basic Earnings per share computed by dividing Profif afler fax by fhe weighted average number of shares outstanding (37'239'162 shares in 20M).

4. Defined as (inferesf-bearing) shorf- and long-term liabilities less cash and equivalents. Excess cash in fhe prior year numbers.

Business Update

Net sales amounted to CHF 206.3 million, including the consolidation of Kyte for the full half year. Order intake was strong at CHF 244.8 million and order backlog amounted to CHF 305.7 million. EBIT reached CHF 40.2 million, equivalent to an EBIT margin of 19.5%. Owing to investments in increased capacities, including the build-up of working capital and capital expenditure, free cash flow amounted to CHF 5.2 million. Despite business expansion, the focus in the second half of 2025 must be on cash conversion.

The net change in cash and cash equivalents was CHF -20.8 million, mainly due to the dividend payment of CHF 18.6 million and the first-time amortisation of the syndicated loan of CHF 12.5 million. Net financial debt as of 30 June 2025 amounted to CHF 104.0 million (versus excess cash of CHF 5.1 million the previous year before the acquisition of Kyte Powertech).

Total assets as of 30 June 2025 amounted to CHF 270.9 million against CHF 258.4 million at the end of 2024, with an equity of CHF 8.5 million (up from CHF -5.3 million per end of 2024).

During the first half of 2025, the Group advanced its sustainability and ESG agenda with key milestones including ISO 50001 certification at multiple sites, greater integration of solar energy, third-party certified product life cycle assessments (LCAs), and the rollout of ESG-focused procurement platforms. Ahead of aligning with the Corporate Sustainability Reporting Directive (CSRD), a comprehensive Climate Risk Assessment was completed, identifying both physical risks (e.g., extreme weather, chronic climate shifts) and transition risks (e.g., regulatory, market, reputational). Opportunities such as energy efficiency, product innovation, and access to green financing were also assessed. This groundwork strengthens CSRD readiness and supports the Group's long-term climate goals. The Double Materiality Assessment is set for release in Q3 2025, alongside the continued implementation of the Supplier Evaluation Portal.

Energy Management and Renewable Integration

The Group is expanding ISO 50001 implementation to enhance energy efficiency, reduce carbon emissions, and support long-term sustainability. This structured system helps lower operating costs, ensure regulatory compliance, and promote continuous improvement across operations. In Italy, certification was achieved in February 2024, with recertification planned for February 2027. The site has addressed all improvement opportunities identified during its energy review and continues to maintain robust monitoring practices, further supported by the installation of solar panels in April 2025, which now supply around 30% of its electricity demand, with surplus power fed into the grid. In Poland, certification was obtained in the first quarter of 2025, with efforts focused on targeted efficiency measures and strengthened monitoring processes. One Polish site also began generating solar energy in mid-2024, meeting approximately 5% of its requirements, while other locations are actively evaluating installation options. Ireland received ISO 50001 certification in the third quarter of 2024, with recertification scheduled for 2027, and is prioritizing enhanced energy monitoring and process optimization to reduce operational energy intensity. Solar power has been in place at the Irish site since mid-2022, providing around 16% of its energy needs.

All certified sites have completed energy reviews, closed gaps, and established KPI tracking, driving real-time energy monitoring, facility upgrades, process optimization, and renewable integration. These efforts deliver measurable savings and support the Group's sustainability goals. Expanding ISO 50001 and renewable energy implementation at remaining sites remains a key focus for the second half of the year.

Environmental Performance

The Group actively manages greenhouse gas emissions, focusing on reducing Scope 1 and Scope 2 emissions. In Italy, emissions reduction efforts have been supported by ongoing efficiency improvements, with Scope 1 and Scope 2 emissions actively monitored and managed. The site also sources over 11% of its electricity from renewable generation, supporting the transition to low-carbon energy. Switzerland has made steady progress in managing direct

8

emissions, with reduction initiatives integrated into operational practices, and now meets 100% of its electricity needs through a certified green electricity supplier. In Poland, one location operates entirely on green electricity, while another generates 20% of its needs on-site through solar power. In Ireland, a full analysis of Scope 1, Scope 2, and Scope 3 emissions has been completed, and the site is certified against ISO 14064 for greenhouse gas quantification and reporting. It meets 100% of its electricity demand from renewable sources, combining certified green electricity with on-site solar generation.

Social Responsibility

The Group continues to invest in employee well-being, training, and inclusion, while also maintaining a strong focus on workplace safety. In Italy, the Workplace Health Promotion (WHP) program has been implemented in collaboration with the Tuscany region to promote healthier lifestyles and improve employee wellness. Engagement with schools and universities in Italy and Poland remains an important part of local recruitment efforts, strengthening the future talent pipeline. In Ireland, Kyle Powertech has partnered with schools in Cavan and Counfy Down to deliver sustainability workshops and launched the Kyte Powertech Sustainability Awards to celebrate STEM projects by primary school students.

In 2025, the Group appointed Beda Brulhart as Compliance Officer to ensure regulatory compliance, and support sustainability efforts. A key priority is developing a whistleblower policy and reporting channel to address gaps in training and reporting, promoting transparency, ethical culture, and compliance awareness across the organization.

ESG-aligned Product Development and Procurement

In 2024, Italy and Switzerland collectively sourced over 180 tons of Bluemint6 low-carbon electrical steel, achieving a combined emissions reduction of more than 340 tCO2e. This represents a meaningful share of their total steel purchases and reflects the Group's commitment to integrating sustainable materials into manufacturing. In Italy, these efforts are complemented by the achievement of Environmental Product Declaration (EPD) certification for the EcoPlus2030 transformer range, while in Switzerland similar material choices are contributing to lower embodied emissions in products.

The Italian site has also completed third-party Life Cycle Assessments (LCAs) for two 1000 kVA cast resin transformer models, with certified EPDs published to ensure transparency. Licensed production of these eco-efficient designs in Poland extends their lifecycle benefits to a broader market, further amplifying environmental gains.

To strengthen sustainability in procurement, a Supplier Evaluation Portal is being implemented across all sites to assess vendors based on ESG compliance, documentation, and risk profiles. While ESG clauses are not yet embedded in all supplier contracts, the new portal will enable consistent screening, qualification, and corrective action planning-building a more resilient and responsible supply chain.

Looking ahead

In H2 2025, the Group will build on its progress by completing CSRD reporting for H1 2026, using finalized Climate Risk Assessments to guide product and risk strategies, working toward a Group-level CMRT and EcoVadis rating, and continuing to deploy the supplier evaluation platform to enhance governance and emissions tracking.

Consolidated Financial Statements as of 30 June 2025

Consolidated Profit and Loss Statement per 30 June 2025

(with comparatives from prior year)

Nef sales

Changes in semi- / finished goods Ofher operating income Operating income

Material cosfs Personnel cosfs Operating expenses

Ofher operating expenses

Operating resulf before amorfisation and depreciation (EBITDA)

Depreciation of tangible assefs and amorfisafion of intangible assefs Operating resulf (EBIT)

Financial resulf

Profit before income taxes

Tax expenses Profit

Basic earnings per share in CHF Diluted earnings per share in CHF

30 June 30 June

2025 2024

(unaudited) (unaudifed)

Nofes TCHF TCHF

2 206'342 109'933

1'600 8'6S6

772 76

2O8'71S 118'664

-112'990 -61'835

3 -37'317 -20'00S

3 -14'131 -9'466

3 -345 -1'760

43'932 25'598

-3'693 -1'646

4O'239 23'9S2

-3'741 -1'173

36'498 22'779

4 -7'692 -10'657

28'8O6 12'122

0.77 0.42

0.77 0.42

Consolidated Financial Statements as of 30 June 2025

Consolidated Balance Sheet per 30 June 2025

Assefs

Cash and cash equivalents Accounts receivable

Ofher shorf-ferm receivables

Inventories

Prepaid expenses

Total current assets

Tangible assefs Financial assefs Intangible assefs

Liabilities and equity

Liabilities

Nofes

Notes

30 June 3J December

2025 2024

(unaudited) (audited)

TCHF TCHF

55'997 76'795

73'035 48'599

1'332 7'891

71'300 62'022

1'812 2'247

2O3'476 197'554

44'528 37*011

2'449 2'046

20'421 21'786

67'398 6O'843

270'874 258'397

30 June 3J December

2025 2024

(unaudited) (audited)

TCHF TCHF

Shorf-term financial liabilities Accounts payable

Ofher shorf-ferm liabilities Shorf-term provisions Accruals

Total current liabilities

Long-ferm financial liabilities Pension liability

Long-ferm provisions

Total non-current liabilifies

Total liabilities

Equify Share capital

Capital reserves Own shares Retained earnings

Cumulative currency franslafion reserve

Total equity

Total Liabilities and equify

33'658

46'760

29'609

9'818

7'434

127'278

126'331

618

8'185

135'135

262'413

3'724

121'840

-468

-114'542

-2'094

8'461

27O'874

28'421

42'302

26'773

7'696

7'962

114'15S

138'630

710

10'205

149'546

263'7OO

3'724

140'366

-2'500

-143'370

-3'524

-5'3O4 258'397

12

Cash flow from operating activities before changes in net working capital

Change in inventories

Change in accounts receivable

Change in ofher receivables and prepaid expenses Change in accounts payable

Change in ofher current liabilities and accruals

Cash flow from operations

Investments in tangible assets Divesfmenfs of tangible assefs Invesfmenfs in financial assets Invesfmenfs in intangible assefs

Cash flow from invesfmenf activities

Free cash flow

Dividend payouf

Issuance (+)/repayment (-) of short-ferm financial liabilities Issuance (+)/repayment (-) of long-ferm financial liabilities

Cash flow from financing activities Exchange rafe impacf

Net change in cash

Cash and cash equivalents af 01.01 Cash and cash equivalents af 30.06

Change in cash and cash equivalents

38'478

-8'975

-24'374

1'371

4'640

2'999

14'139

-8'961

134

-18

-113

5'18O

6 -18'596

3'895

5 -12'067

-26'768

790

-2O'797

76'795

55'997

-2O'797

2O'O66

-7'226

-11'988

-595

-6'400

13'507

7'363

-1'747

26

-4

-174

-1'898

5'46S

-6'992

-575

-8'320

-15'888

1'410

-9'O13

52'999

43'986

-9'O13

Consolidated Financial Statements as of 30 June 2025

Share capital

Capital reserve

Own shares

Exchange rate

impact

Retained earnings/ Accumulated losses

Total

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Condensed Notes to the Financial Statements as of 30 June 2025

1. Principles of group accounting, consolidation scope and method

   General information

   The 2025 Semi-annual Reporf comprises the unaudited consolidated financial sfafements of R&S Group Holding AG ("the Company") and its subsidiaries for the six months ended 30 June 2025.

   The unaudited semi-annual financial statements of R6‹5 Group Holding AG have been prepared in accordance with the accounting principles published in the 2024 Annual Report. In accordance with Swiss GAAP FER 31, this Semi-annual Report contains shorter disclosures than in the consolidated annual financial statements and should therefore be read and interpreted in the context of the 2024 Annual Report. The semi-annual consolidated financial statements present a true and fair view of the financial position, cash flows, and the result of operations, and are based on historical costs.

   The financial statements are presented in CHF 1'000 thousand. Owing to the chosen number format, minor rounding differences may arise.

   These financial statements have been prepared on the basis that the Company will continue as a going concern.

   These financial statements were authorized for issue by the board of directors on 11 September 2025.

   Consolidation scope and method

   The list of shareholdings of the significant subsidiaries included in the consolidation at 30 June 2025 is as follows:

   Share

   Capital Ownership

   in %

   					30 June	30 June
   R6‹S Group Holding AG (Pfâffikon SZ, Swifzerland)	TCHF		3'724		2025	2024
   RhS Infernafional Holding AG (Sissach, Swifzerland)	TCHF		47'559		100	100
   Rauscher h Sfoecklin AG (Sissach, Switzerland)	TCHF		TOO		100	100
   Tesar S.r.I. (Subbiano, Ifaly)	TEUR		2'08O		100	100
   Tesar Gulf Power Transformers LLC (AI Ain, UAE)	TAED		8'800		100	100
   ZREW Transformafory S.A. (Lodz, Poland)	TPLN		12'598		100	100
   Tesar Polska Sp. z o.o. (Niepolomice, Poland)	TPLN		100		100	100
   Experience Technology Nominees Lfd. (Cavan, Ireland)	TEUR		126		100	0
   Kyle Powerfech Lfd. (Cavan, Ireland)	TEUR		12'665		100	0
   Rauscher h Sfoecklin Polska Sp. z o.o. (Krzeczow, Poland)	TPLN		300		100	0

   
   
   

   Semi-annual Repos 2025

   Condensed Notes to the Financial Statements as of 30 June 2025

   Foreign currency conversion

   Applicable exchange rates for the group's major foreign currencies are as follows:

   Euro (EUR)

   30 June 31 December 30 June

   2O2J 2024 2024

   • Closing rate

   • Average rate

     100 Polish Zloty (PLN)

   • Closing rate

   • Average rate

     100 United Arab Emirates Dirham (AED)

   • Closing rate

   • Average rate

   0.946

   0.950

   22.324

   22.472

   21.974

   24.168

   0.938

   0.964

   21.940

   22.377

   24.674

   24.161

   0.972

   0.967

   22.558

   22.402

   24.754

   24.301

2. Net soles

   In the first half of 2025, gross sales increased as a result of a continuous increase in business volumes, the new plant in Krzeczow, Poland, ramping up its operations and the half year impact of Kyle Powertech net sales not included as of 30 June 2024.

   Gross sales from goods and services

   Gross sales from long-term manufacturing orders (valued using fhe percentage-of-completion mefhod)

   Sales deductions Net sales

   30 June 30 June

   2025 2024

   (unaudited) (unaudifed)

   TCHF TCHF

   172'3S1 88'190

   36'080 24'603

   -2'088 -2'860 2O6'342 1O9'933

   Gross sales per region		30 June 2025		30 June 2024
   		(unaudited) TCHF		(unaudifed) TCHF
   Europe		193'691		100'458
   Asia		13'851		10'662
   America		440		443
   Africa / Oceania		450		1'229
   Total gross sales		2O8'431		112'793
   Sales deductions		-2'088		-2'860
   Net sales		2O6'342		1O9'933

   
   
   

   Condensed Notes to the Financial Statements as of 30 June 2025

   2025

3. Development of costs

   The increase in costs of 2025 versus the same period last year is a result of the impact of the newly consolidated figures from Kyte Powertech, the ramp-up of operations at a new plant in Poland, and increased business volumes at other plants.

   Personnel costs have increased in absolute terms but remain largely unchanged as a percentage of net sales.

   The increase in total operating expenses in absolute numbers is mainly attributable to the impact of Kyte Powertech, partly offset by a reduction in other operating costs versus consultancy costs related to ongoing strategic projects in 2024.

   Depreciation and amortization expenses increased as a result of a higher amortization for property, plant, and equipment and design software following their fair value recognition upon the acquisition of Kyte Powertech in August 2024.

4. Tax expenses

   		30 June 2025 (unaudited) TCHF		30 June 2024 (unaudifed) TCHF
   Current income fax		-8'836		-9'924
   Deferred fax		1'143		-734
   Total tax expenses		-7'692		-1O'657

   The overall reduction in tax expenses is due to a one-off subsequent tax payment of CHF 3.7 million by Tesar 5.r.I. in 2024 related to a tax audit of the years 2018 to 2022, partly offset by the impact of significantly increased business volumes.

5. Significant events in the first half-year

   An overall increase in business volume in the first half of 2025 versus Q4 2024 led to an increase in inventories, and accounts receivable. The increase in inventories is a result of the slower ramp- up of the new plant in Krzeczow, Poland, inaugurated in April 2025. On the liability side, this led to an increase in accounts payable owing to higher raw material purchases.

   The reduction in other short-term receivables was primarily the resulf of the termination of restricted cash deposits to support bank guarantee lines in Poland (CHF 4.8 million).

   Tangible assets have increased owing to continuous investments in new machinery in Poland and Ireland.

   RAS Group

   Condensed Notes to the Financial Statements as of 30 June 2025

   The increase in short-term provisions is attributable to an increase in tax associated with growing profitability. The reduction in long-term provisions is mainly attributable to the release of the provision for an onerous contract.

   During the first half of 2025, CHF 12.5 million in financial liabilities were repaid, leading to a decrease in long-term financial liabilities and a lower cash balance on 30 June 2025.

6. Equity

   In May 2025, R&S Group Holding AG paid dividends amounting to CHF 18.59 million or CHF 0.50 per share.

7. Events after the balance sheet dote

No events to report.

18

Group Structure, Shareholders and Shore Information

1. Group Structure and Shareholders

   1. Operational group structure of R6S Group Holding AG

      The Company's registered office is at Zentrum Staldenbach 3, CH-8808 Pfâffikon SZ, Switzerland. The registered shares (security no. 110797983; ISIN CH1107979838, ticker symbol RSGN) are listed on the CIX Swiss Exchange. The Company's share capital as of 30 June 2025 was CHF 3.724 thousand and its market capitalization was CHF 1.076 million. There are no other listed companies within the scope of consolidation of R6‹5 Group.

      Our operating business is conducted through R&5 Group Holding AG's subsidiaries (operating legal entities). The consolidated legal entities are disclosed in Note 1 to the consolidated financial statements.

   2. Significant shareholders/participants

      Based on notifications received by R&S Group Holding AG, each of the following shareholders held more than 3% of the voting rights in R&S Group Holding AG as of 30 June 2025.1The free float as of 30 June 2025 was 90.5%.

      ' The voting righfs participation according fo fhe lafest disclosure nofice received from fhe shareholder.

      CGS III (Jersey) Ltd., a fund managed by CGS Management AG, fully exited its holdings in RSGN in fwo branches during the first half of 2O2J (27 January and 6 May 203S)

      Ofhers 24.3%

      Nof registered 29.8%

      J.P. Morgan Chase 3.1%

Lock-up 8 members (Kyle management) 4.6%

Janus Henderson 5.1%

Swisscanfo The Capital Group Fondsleifung

Companies AG 8.0% 5.6%

UBS Fund Management (Switzerland) AG

9.9%

Notifications of significant shareholdings in R&S Group Holding AG, or disposal of such, that were disclosed during the first half of 2025 can be found under the following link by inserting 'R&S Group Holding AG' as the company name:

https://www.ser-ag.com/en/resources/notifications-market-participants/significant-shareholders.html

20

Group Structure, Shareholders and Shore Information

The R&S Group Holding AG or its subsidiaries do not have any cross-shareholdings exceeding 5% of capital holdings or voting rights.

Source: https://ir.the-rsgroup.com/stock-chart

The SPI EXTRA comprises small- and mid-cap sfocks in fhe Swiss equify markef fhaf are nof included in fhe blue chip SMI index.

Stock exchange listing Reuters

Security number ISIN

Share SIX Swiss Exchange symbol: RSGN

RSGN:SW 110797983 CH1107979838

RSGN is included in fhe following indices as a) 30 June 20Z5: MSCI World 5maII Cap, SPI ESG TR (SPIT), SPI ^ TR (SXGE), SPI EXTRA ^ PR (SPIEX), SPI ex SLI PR (SXSLIX), Swiss All Share Index PR (SSIRT)

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Group Structure, Shareholders and Shore Information

Share information in CHF

30.06.2025 30.06.2024 Change

in "A

Closing price at the end of the reporting period Highest price

Lowest price

Market capitalization at the end of the reporting period (MCHF)'

' based on shares issued

28.90

29.60

15.70

1'076

J3.15 1J9.8

13.25 123.4

9.55 64.4

380 183.2

Own shares

30.06.2025 30.06.2024 Change

in %

Shares issued Own shares

Shares outstanding

37'239'162 28'929'412

-46'770 -1'000'000

37'J92'392 27'929'4J2

28.7

-95.3

33.4

22

Forward Looking Statements

Forward looking statements

This report contains statements that constitute forward-looking statements, including statements of the future financial performance of the Company, its plans and objectives and their anticipated effect on the Company's future business and development, as well as other projections and statements that are forward-looking or contain subjective assessments, regarding the intent, belief or current expectations of the Company. The Company has tried to identify those forward-looking statements by using words such as 'may', 'will', 'would', 'should', 'expect', 'intend', 'estimate', 'anticipate', 'project', 'believe', 'plans', 'predict' and similar expressions. Such statements are made on the basis of assumptions, estimates and expectations which, although the Company believes them to be reasonable at this time, may prove to be erroneous or unfounded in the future, as forward-looking statements are subject to risks and uncertainties that could cause the actual development, results and financial position of the Company to differ materially from the information presented herein. Many of these risks and uncertainties relate to factors that are beyond the company's ability to control or estimate precisely, such as future market conditions, currency fluctuations, the behavior of other market participants, the performance, security and reliability of the company's information technology systems, political, economic and regulatory changes in the countries in which the company operates or in economic or technological trends or conditions. If one of these risks or uncertainties materialises or if underlying assumptions prove to be incorrect, actual outcomes may vary materially from those indicated in the forward-looking statements. Other than in accordance with the ad-hoc publicity rules of the CIX Swiss Exchange, the Company undertakes no obligation to release publicly any revisions or updates to any forward-looking statements herein to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events or to reflect any change in the Company's expectations.

23

Published Information

Published Information, Corporate Calendar and Contacts Pulbished information

Published materials of the R6‹5 Group Holding AG are available to the public in electronic form. Subscription to R6‹5 Group Holding AG's news alert for corporate information and ad-hoc publications is possible under https://ir.the-rsgroup.com/stay-informed/

Corporate calendar

8 April 2026

7 May 2026

Release of full-year 2025 results Annual General Meeting

The corporate callender is available under https://ir.the-rsgroup.com/financial-calendar

Contacts

R&S Group Holding AG Zentrum Staldenbach 3 CH - 8808 Râffikon SZ Switzerland

investors@the-rsgroup.com

Investor and Media Relations Doris Rudischhauser

T: +41 (0) 79 410 81 88

doris.rudischhauser@the-rsgroup.com

Further information

Our website provides further information on R6‹5 Group Holding AG, including share price data, media releases, historical annual reports and an events calendar: https://www.the-rsgroup.com

24

R&S

We guarantee energy

R6‹S Group Holding AG

Zentrum Staldenbach 3, CH-8808 Pfaffikon SZ, Switzerland

https://www.the-regroup.com

This semi-annual Reporl is published in English only

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