Amman Mineral Internasional is trading at IDR 3,890, up 4.01%, with the reason for the rise unclear. - The supplied October 21 close was IDR 3,740, up 0.27%. - Searches found no confirmed October 22 company announcement; copper prices were under pressure as inventories rose, which does not clearly explain the gain. - No significant same-direction broad-market move or verified trading-volume detail was established.