20260430_MSTI_Penyampaian Bukti Iklan_32075764_lamp1.pdf

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3. Determination of the amounts of salaries or honorariums and allowances for the members of
Board of Directors and Board of Commissioners.

Explanation:
The Company will propose to delegate authority to the Controlling Shareholders to determine the

salary, honorarium and other benefits for members of the Board of Commissioners and delegate
authority to the Board of Commissioners to determine the salary, honorarium and other benefits for
members of the Board of Directors with consideration to the recommendations of the Remuneration
and Nomination Committee

4. Appointment of a Public Accountant from the Public Accounting Firm to audit the Company's
Financial Statements for the Financial Year Ended December 31, 2026.
Explanation:
Appointment of a Public Accountant from the Public Accounting Firm is proposed to be authorized to
Board of Commissioners, taking into account the recommendations of Audit Committee and the
applicable laws and regulations.

5. Granting Power of Attorney to the Board of Commissioners of the Company to increase the
Company's issued and paid-up capital in connection with the exercise of options rights in the
MESOP Program.

Explanation:

In accordance with the Resolution of General Meeting of Shareholders as outlined in Deed No.
139/2023 dated July 27, 2023 of Jose Dima Satria, SH, Mkn, a notary in Jakarta and Information that
has been disclosed in Chapter I of the Prospectus issued by the Company on November 1, 2023 in the
framework of the Initial Public Offering, the option right to purchase new shares of the Company to
MESOP Program Participants has been allocated and will be exercisable within 3 years from the date
of the Company's Listing on the Indonesia Stock Exchange. Therefore, it is necessary to authorize the
Board of Commissioners to make adjustments to the issued and paid-up capital as a result of the
exercise of Option rights in the MESOP Program.

General Provisions:

1 The Company does not send separate invitations to the Company's Shareholders. This notice of
convocation has been published on the Indonesia Stock Exchange Website www.idx.co.id, eASY.KSEI
which can be accessed through https://akses.ksei.co.id and Company's website. This notice is in
accordance with the provisions of article 52 Financial Services Authority Regulation No.
15/POJK.04/2020 and the Company's Articles of Association, therefore this notice is one of the
official invitations for the Company's Shareholders

2. In accordance with the provisions of the Company's Articles of Association, Shareholders who are
entitled to attend the Meeting are Shareholders recorded in the Company's Register of
Shareholders on April 29, 2026 and/or shareholders in the balance of sub securities accounts at PT.
Kustodian Sentral Efek Indonesia ("KSEI") until the close of trading of the Company's shares on the
Indonesia Stock Exchange on April 29, 2026.

3. The Company has provided materials related to the Agenda of the Meeting and can be downloaded
through the Company's website www.mastersystem.co.id from the date of this Notice until the
date of the Meeting. Copies of physical documents can be provided if reguested in writing by the
Company's Shareholders.

4. The Company encourages Shareholders to register attendance electronically through the KSEI
System (eASY.KSEI) in the link https://akses.ksei.co.id provided by KSEI. Electronic registration will

PT. MASTERSYSTEM INFOTAMA TBK

Sudirman 7.8 Tower 1 25th Floor

Jl. Jend. Sudirman Kav. 7-8 Jakarta 10220, INDONESIA.

Phone 46221 39731111 | Fax 46221 39731212

1462213973 0808 (Hotline 24 Hours) www.mastersystem.co.id

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be opened from the date of this Meeting Notice, April 30, 2026 and will be closed at the latest

before the Meeting, at 13.30 WIB.

5 Shareholders who will attend electronically or give power of attorney electronically to attend the
Meeting through the eASY.KSEI application should observe the following provisions:

(i) Shareholders that have not declared their electronic attendance or power of attorney in the
@ASY.KSEI application until the deadline as referred to in item 4 and would like to attend
the Meeting electronically, must register their attendance in the eASY.KSEI application on
the date of the Meeting until the registration period of the Meeting is electronically closed
by the Company.

(ii) Shareholders that have declared their electronic attendance but have not cast their votes at
least for 1 (one) agenda of the Meeting in the eASY.KSEI application until the deadline as
referred to in item 4 and would like to attend the Meeting electronically, must register their
attendance in the eASY.KSEI application on the date of the Meeting until the registration
period of the Meeting is electronically closed by the Company.

(iii) Shareholders that have given power of attorney to the proxy provided by the Company
(Independent Representative) or Individual Representative but the shareholders have not
cast their votes at least for 1 (one) agenda of the Meeting in the eASY.KSEI application until
the deadline as referred to in item 4, then the proxy representing the shareholders must
register attendance in the eASY.KSEI application on the date of the Meeting until the
registration period of the Meeting electronics closed by the Company.

(iv) Shareholders that have given power of attorney to the participating power of attorney /
Intermediary (Custodian Bank or Securities Company) and have cast their votes in the
@ASY.KSEI application until the deadline as referred to in item 4, then the proxy
representative who has been registered in the eASY.KSEI application must register their
attendance in the eASY.KSEI application on the date of the Meeting until the registration
period of the Meeting is electronically closed by the Company.

(9) Shareholders that have declared their electronic attendance or given power of attorney to
the proxy provided by the Company (Independent Representative) or Individual
Representative and have cast their votes at least for 1 (one) or to all agenda of the Meeting
in the eASY.KSEI application no later than the deadline as referred to in item 4, then the
shareholder or proxy does not need to register attendance electronically in the eASY.KSEI
application on the date of the Meeting. Share ownership will automatically being taking
into account in the attendance guorum and voting options that have been granted will be
automatically taken into account in the Meeting voting.

(vi) Any delay or failure in the electronic registration process as referred to in numbers (i) to (iv)
for any reason will result in shareholders or their proxies not being permitted to
electronically attend the Meeting, and their share ownership is not being taking into
account in the attendance guorum.

6. Guidelines for registration, use and further explanation of eASY.KSEI and Akses KSEI can be found
on KSEI's website through https://akses.ksei.co.id and https://easy.ksei.co.id, as well as Meeting
Rules can be found on the Company's website www.mastersystem.co.id.

Ke In the event that Shareholders cannot access KSEI System (eASY.KSEI) in the link
https://akses.ksei.co.id, Shareholders can download the power of attorney provided on the
Company's website www.mastersystem.co.id to give their power of attorney and vote at the
Meeting. The power of attorney must be sent to the Company's Securities Administration Bureau
("BAE"), namely PT Datindo Entrycom Jl. Hayam Wuruk No. 28 Lt 2 Jakarta 10220, no later than 3
(three) working days before the Meeting date, May 20, 2026 at 15.00 WIB.

8. Notary, assisted by the Company's BAE, will check and calculate votes in the process of decisions
making of the Meeting Agenda, including those based on votes submitted by Shareholders either
through the eASY.KSEI facility, or those submitted at the Meeting.

PT. MASTERSYSTEM INFOTAMA TBK

Sudirman 7.8 Tower 1 25th Floor

Jl. Jend. Sudirman Kav. 7-8 Jakarta 10220, INDONESIA,

Phone 46221 39731111 | Fax 46221 39731212

462213973 0808 (Hotline 24 Hours) — www.mastersystem.co.id

Dn

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9: The Company limits the capacity of the meeting room, does not provide souvenirs, food and
beverages, and will notify the Shareholders if there are changes and/or additions to information
related to the procedures for conducting the Meeting with reference to the latest conditions and
developments.

Jakarta, April 30, 2026
PT Mastersystem Infotama Tbk
Board of Directors

PT. MASTERSYSTEM INFOTAMA TBK

Sudirman 7.8 Tower 1 25th Floor

Jl. Jend. Sudirman Kav. 7-8 Jakarta 10220, INDONESIA.

Phone 46221 39731111 | Fax 46221 39731212

162213973 0808 (Hotline 24 Hours) www.mastersystem.co.id