20260107_DSSA_Laporan Bulanan Aktivitas Eksplorasi_32017583_lamp1.pdf

(@Dss

energy and infrastructure

No.: 005/CSDSS-01/2026
Jakarta, 8 Januari/January 2026

Kepada Yth./7o:

Direksi PT Bursa Efek Indonesia ("BEI")/
Indonesia Stock Exchange ("IDX")
Gedung Bursa Efek Indonesia

Jalan Jenderal Sudirman Kav. 52 — 53
Jakarta 12190

Perihal: Penyampaian Laporan
Kegiatan Eksplorasi Periode 31
Desember 2025 PT Dian
Swastatika Sentosa Tbk

(“Perseroan”)
Dengan hormat,

Dalam rangka memenuhi Keputusan Direksi
BEI Nomor: Kep-00087/BEI/12-2025 tanggal
31 Oktober 2025 tentang Peraturan Nomor I-
E tentang Kewajiban Penyampaian
Informasi, bersama ini kami sampaikan
Laporan Aktivitas Eksplorasi Perseroan,
melalui entitas anaknya, untuk periode 31
Desember 2025 sebagaimana terlampir.

Terima kasih atas perhatiannya.

Yyarus,
4 Sentosa Tbk

Hormat karni/ Besi

Vice President Director

PT Dian Swastatika Sentosa Tbk

Re. : Report on the Exploration Activities for
the Period of December 31, 2025 ot
PT Dian Swastatika Sentosa Tbk
(the “Company”)

Dear Sir/Madam,

In accordance with the Decision Letter of the
Board of Directors of IDX No.  Kep-
00087/BEI/12-2025 dated October 31, 2025
regarding Regulation Number I-E on Obligation
to Disclosure of Information, we hereby submit
the Exploration Activities of the Company,
through its subsidiaries, for the period of
December 31, 2025, as attached.

Thank you for your attention.

David Fernando Audy
Direktur/Director

Sinar Mas Land Plaza, Tower II, 24th Floor, Jl. M.H. Thamrin No. 51, Jakarta 10350, Indonesia

Telp: (62-21) 31990258 e Fax: (62-21) 31990259