Harta Djaya Karya is trading at IDR 143.00, up 10%, for September 28, 2026; no reliable source identified a new announcement behind the move. - The rise extends gains from IDR 119 on September 23 to IDR 130 on September 24. - Earlier reports covered plans to raise authorized capital and pursue a 45% acquisition of Trimitra Coal Perkasa, but do not establish a direct cause for this session’s move. - Trading volume and unusual activity level are not confirmed.