Karachi, Tri-Star Power witnessed a modest increase in its stock value during the trading session on the Pakistan Stock Exchange. The stock opened at PKR 8.99 and closed at PKR 9.2, with share prices dipping to a low of PKR 8.38 before reaching a high of PKR 9. A total of 21,000 shares changed hands, closing at a lower price of PKR 8.68.