Changes in Sub. S — hldr's Int (Section 138 of CA 2016) — MR CHIANG SANG SEM

Changes in Sub. S-hldr's Int (Section 138 of CA 2016) BONIA CORPORATION BERHAD Particulars of substantial Securities Holder Name MR CHIANG SANG SEM Nationality/Country of incorporation Malaysia Descriptions (Class) Ordinary shares Details of changes No Date of change No of securities Type of Transaction Nature of Interest 1 13 Oct 2026 10,100 Acquired Direct Interest Name of registered holder Alliancegroup Nominees (Tempatan) Sdn Bhd — Pledged securities account for Chiang Sang Sem Description of "Others" Type of Transaction 2 14 Oct 2026 8,800 Acquired Direct Interest Name of registered holder Alliancegroup Nominees (Tempatan) Sdn Bhd — Pledged securities account for Chiang Sang Sem Description of "Others" Type of Transaction 3 14 Oct 2026 3,000 Acquired Direct Interest Name of registered holder Chiang Sang Sem Description of "Others" Type of Transaction 4 15 Oct 2026 10,000 Acquired Direct Interest Name of registered holder Alliancegroup Nominees (Tempatan) Sdn Bhd — Pledged securities account for Chiang Sang Sem Description of "Others" Type of Transaction 5 15 Oct 2026 10,000 Acquired Direct Interest Name of registered holder Chiang Sang Sem Description of "Others" Type of Trans