The notice will be published in the Swedish Official Gazette (Post- och Inrikes Tidningar) and on the company’s website within the next few days.

NOTICE OF ANNUAL GENERAL MEETING OF MIDSUMMER AB

Midsummer AB holds an annual general meeting on Wednesday, May 20, 2026, at 15:00, at the company’s offices at Elektronikhöjden 6, Järfälla, Sweden. Registration starts at 14:30.

REQUIREMENTS FOR PARTICIPATION

Shareholders wishing to attend the meeting must:

1. be recorded as a shareholder in the share register kept by Euroclear Sweden AB as of Monday, May 11, 2026,
2. notify the company the intention to attend no later than Wednesday, May 13, 2026.

Notification of attendance shall be made by e-mail to info@midsummer.se. Upon notification, please state name or company name, personal ID number or company registration number, address and telephone number.

NOMINEE REGISTERED SHARES

In order to participate in the meeting, those whose shares are registered in the name of a nominee must have their shares owner-registered with Euroclear Sweden AB as of Monday, May 11, 2026. Such registration may be temporary (so-called voting rights registration) and is requested from the nominee in accordance with the nominee’s routines at such time in advance as the nominee determines. Voting rights registration that the shareholder has requested and has been issued by the nominee no later than Wednesday, May 13, 2026, will be accepted in the preparation of the share register.

PROXIES AND PROXY FORMS

Anyone who is not personally present at the meeting may exercise their voting rights at the meeting through a written, signed and dated proxy form. A proxy form is available on the company’s website, www.midsummer.se. The proxy form can also be obtained from the company at Elektronikhöjden 6, Järfälla. If a proxy form has been issued by a legal entity, a copy of the registration certificate or equivalent authorization document for the legal entity must be attached to the form. The proxy form may not be older than one year unless a longer period of validity is stated in the proxy form, however, no longer than five years. To alleviate entry to the meeting, proxy forms, registration certificates and other authorization documents should be provided to the company well in advance of the meeting.

PROPOSED AGENDA

1. Opening of the meeting
2. Election of chair of the meeting
3. Preparation and approval of voting list
4. Approval of the agenda
5. Election of one or several persons to approve the minutes
6. Examination of whether the meeting has been duly convened
7. The CEO’s presentation
8. Presentation of the annual accounts and the auditor’s report and the consolidated accounts and the auditor’s report for the group
9. Resolutions on
   1. adoption of the income statement and balance sheet and the consolidated income statement and consolidated balance sheet
   2. allocation of the company’s profit or loss according to the adopted balance sheet
   3. discharge of the members of the board of directors and the CEO from liability
10. Determination of fees for the board of directors and the auditors
11. Determination of the number of members of the board of directors and auditors
12. Election of the board of directors and auditors
13. Resolution on the approval of the board of directors’ resolution of January 19, 2026, on a directed share issue (a so-called LEO issue)
14. Closure of the meeting

PROPOSED RESOLUTIONS

Item 2 – Election of chair of the meeting

The nomination committee proposes Jan Lombach, or if he is prevented from attending, the person the nomination committee proposes in his place, be elected chair of the meeting.

Item 9b – Resolution on allocation of the company’s profit or loss according to the adopted balance sheet

The board proposes that no dividends are paid and that the year’s results are balanced in a new account.

Item 10 – Determination of fees for the board of directors and the auditors

The nomination committee proposes that fees to the board of directors shall, for the time until the next annual general meeting, remain unchanged and be paid with SEK 400,000 for the chair of the board of directors and with SEK 250,000 for each other member elected by the general meeting. Philip Gao, Jan Lombach and Hans Waldaeus have, as larger shareholders, informed of their will to waive their board fees.

Item 11 – Determination of the number of members of the board of directors and auditors

The nomination committee proposes that the board of directors, for the time until the next annual general meeting, shall consist of eight members with no deputies and that the company shall have one auditor with no deputy.

Item 12 – Election of the board of directors and auditors

The nomination committee proposes re-election of Robert Sjöström, Philip Gao, Jan Lombach, Mikael Nicander, Hans Waldaeus, Per Mattson, Patrik Boman and Anna Denell as board members for the time until the end of the next annual general meeting. Robert Sjöström is proposed to be re-elected as chair of the board of directors.

The nomination committee proposes that the registered accounting firm Öhrlings PricewaterhouseCoopers AB is re-appointed as auditor for the time until the end of the next annual general meeting. Öhrlings PricewaterhouseCoopers AB has given notice that if the nomination committee's proposal for auditor is adopted at the meeting, Henrietta Segenmark, authorized public accountant, will continue to be the person appointed to have main responsibility for the audit.

Item 13 – Resolution on the approval of the board of directors’ resolution of January 19, 2026, on a directed share issue (a so-called LEO issue)

The board proposes that the meeting approves the part of the board’s resolution of January 19, 2026, that is directed to senior executives of the company, entailing that the company’s share capital shall increase by no more than SEK 87,771.36 through the issuance of not more than 2,194,284 shares, in accordance with the following.

1. The right to subscribe for the new shares shall, in deviation from the shareholders' preferential rights, accrue solely to Hans Waldaeus, through a company, and Peter Karaszi, who have entered into guarantee commitments with the company in connection with the rights issue of shares resolved by the board of directors on November 28, 2025, with the subsequent approval of the general meeting on December 23, 2025 (the "Rights Issue").

2. The reasons for deviation from the shareholders' preferential rights are as follows. The directed share issue to the guarantors is carried out due to the guarantee agreements with the guarantors that have been entered into to enable the Rights Issue. The board of directors considers that it is to the advantage of the company's financial position and in the shareholders' interest that the guarantee compensation that the company shall pay pursuant to the guarantee agreements can be paid in the form of shares instead of cash payment as this releases funds that strengthen the company's working capital. The fact that the guarantee compensation is paid in the form of shares further entails that the company can use a larger portion of the issue proceeds from the Rights Issue in the manner described in the company's market communication.

3. The subscription price in the directed issue is SEK 1.225 per share, which corresponds to the volume-weighted average price for the company's share during a period of ten trading days prior to January 22, 2026. The subscription price has been determined following negotiations at arm's length between the guarantors and the company, in consultation with the company's financial advisors, and is considered to correspond to the share's market value.

4. Subscription of the newly issued shares shall be made on a subscription list not later than February 1, 2026. Subscription may, however, only take place once the subscription price has been determined. The board of directors shall have the right to extend the subscription period.

5. Payment shall be made in cash no later than February 1, 2026. However, it is noted that the board of directors may approve set-off in accordance with the conditions set out in Chapter 13, Section 41 of the Swedish Companies Act. The board of directors shall have the right to extend the payment period.

6. Payment for subscribed shares that exceeds the quota value of the shares shall be added in full to the free share premium fund.

7. The new shares shall entitle to dividends for the first time on the first record date for dividend that takes place after the issue of new shares has been recorded in the share register kept by Euroclear Sweden AB.

The approval of the general meeting is a condition for the implementation of the directed share issue in accordance with Chapter 16 of the Swedish Companies Act (the so-called LEO Act), as the issue is directed, directly or indirectly, to senior executives of the company.

The board of directors, or the person appointed by the board of directors, shall have the right to make the minor adjustments that may be required in connection with the registration of the resolution with the Swedish Companies Registration Office or due to other formal requirements.

MAJORITY REQUIREMENTS

Resolution under item 13 will not be valid unless supported by shareholders representing at least nine tenths of both the votes cast and the shares represented at the general meeting.

DOCUMENTS

The complete documents in accordance with the Swedish Companies Act will be available at the company and on the company’s website and will be sent immediately without charge to any shareholders who so request and state their address. The documents will also be available at the meeting.

INFORMATION AT THE MEETING

The shareholders are reminded of their right to request information from the board of directors and the CEO according to the Swedish Companies Act.

PROCESSING OF PERSONAL DATA

For information on how your personal data is processed, please see: https://www.euroclear.com/dam/ESw/Legal/Privacy-notice-bolagsstammor-engelska.pdf.

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Stockholm in April 2026
Midsummer AB (publ)
The board of directors

Links to images and other press material: Press – Midsummer.

For additional information contact:
Eric Jaremalm
CEO, Midsummer
Email: eric.jaremalm@midsummer.se
Tel: +46 8 525 09 610

Robert Sjöström
Chairman of the Board, Midsummer
Email: robert.sjostrom@midsummer.se
Tel: +46 708 705 308

About Midsummer
Midsummer is a Swedish solar energy company that develops, manufactures, and sells solar cells to construction, roofing and solar cell installation companies and also manufactures, sells and installs solar roofs directly to end customers. The company also develops and sells equipment for the production of flexible thin film solar cells to strategically selected partners and machinery for research. The solar cells are of CIGS technology (consist of copper, indium, gallium and selenide) and are thin, light, flexible, discreet and with a minimal carbon footprint compared with other solar panels.

The solar roofs are produced in Sweden using the company’s own unique DUO system which has taken the position as the most widespread manufacturing tool for flexible CIGS solar cells in the world. The Company’s shares (MIDS) are traded on Nasdaq First North Growth Market. The Company’s Certified Adviser is Tapper Partners AB. For more information, please visit: midsummer.se