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Page 1
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Nomor Surat 20/TRST/VII/2026
Nama Perusahaan Trias Sentosa Tbk
Kode Emiten TRST
Lampiran 0
Perihal Informasi Perubahan Pengurus
Pengurus Trias Sentosa Tbk memberitahukan kepada para pemegang efek bahwa sehubungan dengan perubahan
pengurus, berikut kami informasikan perubahan pengurus sebagai berikut :
Tanggal Nama Pengurus
Nama Pengurus Saat ini Jabatan Independen Keterangan
Pengangkatan Sebelumnya
DIREKTUR
C. Herman Nugroho 30 Juni 2026 Hananto
UTAMA
Silvester Terisno DIREKTUR 30 Juni 2026 Silvester Terisno
Nani Tina Asmara DIREKTUR 30 Juni 2026 Nani Tina Asmara
Roby Hartono DIREKTUR 30 Juni 2026
Andre Teguh Kohar DIREKTUR 30 Juni 2026
Tanggal Nama Pengurus Komisaris
Nama Pengurus Saat ini Jabatan Keterangan
Pengangkatan Sebelumnya Independen
KOMISARIS
Kindarto Kohar 30 Juni 2026 Kindarto Kohar
UTAMA
Sugeng Kurniawan KOMISARIS 30 Juni 2026 Sugeng Kurniawan
Heriati Gunawan KOMISARIS 30 Juni 2026 Ketut Sumarwan X
Demikian untuk diketahui.
Hormat Kami,
Trias Sentosa Tbk
Hans Chandra
Corporate Secretary
Trias Sentosa Tbk
Head Office: Desa Keboharan, Km 26 Krian,Sidoarjo 61262 Indonesia
Telepon : 031 8975825, Fax : 031 8972998, www.trias-sentosa.com
Nama Pengirim Hans Chandra
Jabatan Corporate Secretary
Page 2
Tanggal dan Waktu 07-07-2026 17:07
Dokumen ini merupakan dokumen resmi Trias Sentosa Tbk yang tidak memerlukan tanda tangan karena dihasilkan
secara elektronik oleh sistem pelaporan elektronik. Trias Sentosa Tbk bertanggung jawab penuh atas informasi yang
tertera didalam dokumen ini.
Page 3
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Letter / Announcement No. 20/TRST/VII/2026
Issuer Name Trias Sentosa Tbk
Issuer Code TRST
Attachment 0
Subject Infomation of Changes in Company's Board
Trias Sentosa Tbk announces to shareholders on changes in the Company Board, details of this information are as
follows
Date of Name of Previous
Name of Current Board Position Independent Information
Appointment Board
PRESIDENT
C. Herman Nugroho 30 June 2026 Hananto
DIRECTOR
Silvester Terisno DIRECTOR 30 June 2026 Silvester Terisno
Nani Tina Asmara DIRECTOR 30 June 2026 Nani Tina Asmara
Roby Hartono DIRECTOR 30 June 2026
Andre Teguh Kohar DIRECTOR 30 June 2026
Date of Name of Previous
Name of Current Board Position Independent Information
Appointment Board
PRESIDENT
Kindarto Kohar 30 June 2026 Kindarto Kohar
COMMISSIONER
Sugeng Kurniawan COMMISSIONER 30 June 2026 Sugeng Kurniawan
Heriati Gunawan COMMISSIONER 30 June 2026 Ketut Sumarwan X
Thus to be informed accordingly.
Respectfully,
Trias Sentosa Tbk
Hans Chandra
Corporate Secretary
Trias Sentosa Tbk
Head Office: Desa Keboharan, Km 26 Krian,Sidoarjo 61262 Indonesia
Phone : 031 8975825, Fax : 031 8972998, www.trias-sentosa.com
Sender Name Hans Chandra
Page 4
Function Corporate Secretary
Date and Time 07-07-2026 17:07
This is an official document of Trias Sentosa Tbk that does not require a signature as it was generated
electronically by the electronic reporting system. Trias Sentosa Tbk is fully responsible for the information contained
within this document.
Names mentioned 12 people and organisations named in the text · linked when the evidence is strong
unresolved
org
Informasi Perubahan Pengurus Pengurus Trias Sentosa Tbk
p.1
unresolved
person
Silvester Terisno
· DIREKTUR
p.1
unresolved
person
Nani Tina Asmara
· DIREKTUR
p.1
unresolved
person
Roby Hartono
· DIREKTUR
p.1
unresolved
person
Andre Teguh Kohar
· DIREKTUR
p.1
unresolved
person
Heriati Gunawan
· KOMISARIS
p.1
unresolved
org
Hans Chandra
· Corporate Secretary
p.1 ×3
unresolved
org
Board Trias Sentosa Tbk
p.3
Extraction attempts how the parser did, and what it refused
Nothing structured was extracted from this document — the attempts below say why.
Rule parser
OK
confidence 0.900
183 ms
12 Sep 2026 21:50
Raw output
{'announced_date': '2026-07-07',
'changes': [{'change_type': 'OUT',
'effective_date': '2026-06-30',
'name': 'Hananto',
'position_after': '',
'position_before': 'PRESIDENT_DIRECTOR',
'position_raw': 'DIREKTUR UTAMA',
'reason_text': ''},
{'change_type': 'IN',
'effective_date': '2026-06-30',
'name': 'C. Herman Nugroho',
'position_after': 'PRESIDENT_DIRECTOR',
'position_before': '',
'position_raw': 'DIREKTUR UTAMA',
'reason_text': ''},
{'change_type': 'IN',
'effective_date': '2026-06-30',
'name': 'Roby Hartono',
'position_after': 'DIRECTOR',
'position_before': '',
'position_raw': 'DIREKTUR',
'reason_text': ''},
{'change_type': 'IN',
'effective_date': '2026-06-30',
'name': 'Andre Teguh Kohar',
'position_after': 'DIRECTOR',
'position_before': '',
'position_raw': 'DIREKTUR',
'reason_text': ''},
{'change_type': 'OUT',
'effective_date': '2026-06-30',
'name': 'Ketut Sumarwan',
'position_after': '',
'position_before': 'INDEPENDENT_COMMISSIONER',
'position_raw': 'KOMISARIS',
'reason_text': ''},
{'change_type': 'IN',
'effective_date': '2026-06-30',
'name': 'Heriati Gunawan',
'position_after': 'INDEPENDENT_COMMISSIONER',
'position_before': '',
'position_raw': 'KOMISARIS',
'reason_text': ''}],
'event_date': None,
'issuer_name': 'Trias Sentosa Tbk',
'issuer_ticker': 'TRST',
'letter_number': '20/TRST/VII/2026',
'positions': [{'is_independent': False,
'name': 'C. Herman Nugroho',
'role': 'PRESIDENT_DIRECTOR',
'role_raw': 'DIREKTUR UTAMA',
'started_at': '2026-06-30'},
{'is_independent': False,
'name': 'Silvester Terisno',
'role': 'DIRECTOR',
'role_raw': 'DIREKTUR',
'started_at': '2026-06-30'},
{'is_independent': False,
'name': 'Nani Tina Asmara',
'role': 'DIRECTOR',
'role_raw': 'DIREKTUR',
'started_at': '2026-06-30'},
{'is_independent': False,
'name': 'Roby Hartono',
'role': 'DIRECTOR',
'role_raw': 'DIREKTUR',
'started_at': '2026-06-30'},
{'is_independent': False,
'name': 'Andre Teguh Kohar',
'role': 'DIRECTOR',
'role_raw': 'DIREKTUR',
'started_at': '2026-06-30'},
{'is_independent': False,
'name': 'Kindarto Kohar',
'role': 'PRESIDENT_COMMISSIONER',
'role_raw': 'KOMISARIS UTAMA',
'started_at': '2026-06-30'},
{'is_independent': False,
'name': 'Sugeng Kurniawan',
'role': 'COMMISSIONER',
'role_raw': 'KOMISARIS',
'started_at': '2026-06-30'},
{'is_independent': True,
'name': 'Heriati Gunawan',
'role': 'INDEPENDENT_COMMISSIONER',
'role_raw': 'KOMISARIS',
'started_at': '2026-06-30'}],
'source_shape': 'PENGURUS_TABLE',
'subject': 'Informasi Perubahan Pengurus'}