Silicon Tetrachloride Prices, Trends, News, Index, Chart, Demand and Forecast USA Silicon Tetrachloride Price Index and Average Prices In the United States, the Silicon Tetrachloride Price Index declined marginally by 0.78% quarter-over-quarter during Q3 2025. While the decrease appeared modest, it masked underlying supply tightness that prevented sharper price corrections. The average Silicon Tetrachloride price stood at approximately USD 2,108.33 per metric ton, reflecting sustained demand from semiconductor fabrication and optical fiber manufacturing sectors. Get Real time Prices for Silicon Tetrachloride : https://www.chemanalyst.com/Pricing-data/silicon-tetrachloride-1583