Right to participate in the Extraordinary General Meeting and notice of participation
Shareholders who wish to participate in the Extraordinary General Meeting must:

• be recorded in the share register maintained by Euroclear Sweden AB no later than Wednesday 18 November 2026 (for nominee-registered shares, please see "Nominee-registered shares" below), and
• no later than Friday 20 November 2026 give notice by post to Gigasun AB (publ), Extraordinary General Meeting, Box 3083, 103 61 Stockholm or by email to stamma@gigasun.se. In the notice, the shareholder shall state its name, personal or corporate registration number, address, telephone number, shareholding and the number of any accompanying assistant(s) (maximum two assistants).

Representative
If a shareholder is represented by proxy, a written, dated proxy for the representative must be issued. A proxy form is available on the Company’s website, www.gigasun.se. If the proxy is issued by a legal entity, a certificate of registration or equivalent certificate of authority should be enclosed. To facilitate registration at the General Meeting, the proxy, certificate of registration and any other authorisation documents should be received by the Company at the address stated above no later than 20 November 2026.
 
Nominee-registered shares
To be entitled to participate in the Extraordinary General Meeting, a shareholder whose shares are held in the name of a nominee must, in addition to providing notification of participation, register its shares in its own name so that the shareholder is recorded in the share register relating to the circumstances on 18 November 2026. Such registration may be temporary (so-called voting right registration) and is requested from the nominee in accordance with the nominee’s procedures and in such time in advance as the nominee determines. Voting right registrations completed by the nominee no later than 20 November 2026, are considered when preparing the register of shareholders.
 
Proposed agenda

1. Opening of the meeting.
2. Election of the chairman of the meeting.
3. Preparation and approval of the voting register.
4. Approval of the agenda.
5. Election of one or two persons to verify the minutes.
6. Determination of whether the meeting has been duly convened.
7. Election of Board Director
8. Closing of the meeting.

Proposed resolutions
 
Item 7 – Election of Board Director
The shareholder Soltech Energy Sweden AB (publ) proposes that Pontus Andersson be elected as a new member of the Board of Directors of the Company, replacing Stefan Ölander, for the period until the end of the next Annual General Meeting.
 
Pontus Andersson is the CFO of Soltech Energy Sweden AB (publ) and has previously served as CFO of, among others, Nelly and Lyko.
 
Shareholders’ right to request information
The shareholders are reminded of their right to obtain information from the board of directors and the managing director in accordance with Chapter 7 Section 32 of the Swedish Companies Act.
 
Number of shares and votes
The total number of shares and votes in the Company at the time of this notice is 104,713,833. All issued shares have equal voting rights. The Company does not hold any own shares.
 
Documentation etc.
The complete proposal for resolution and other documents pursuant to the Swedish Companies Act will be available at the Company’s offices and on the Company’s website no later than from the time prescribed by law. The documents will also be sent free of charge to shareholders who so request and provide their postal address.

The documents will also be available at the Extraordinary General Meeting.
 
Stockholm, November 2026
 
Gigasun AB (publ)
The Board of Directors