Karachi, The Chemical sector of the Pakistan Stock Exchange saw a slight decrease in its index. With a market capitalization of Rs. 644,947,285,496, the sector had a turnover of 19,998,923 and a traded value of Rs. 460,468,511.41. The sector's index decreased by 178.600 points to 29,549.640. It represents 6.821% of the market capitalization and 1.058% of the total capitalization.