95% min Price $US/MT in EXW China, FOB China. Current, Historical PricesTungsten oxides WO3 99. Are ads getting in your way? Register for Ad-free pages and live data. 5% WO₃ min benchmarks in $/mtu. Fastmarkets assesses the market weekly, capturing firm indications and validated transactions with regional references for CIF Rotterdam & Baltimore (duty-free) and FOB China, alongside tungsten concentrate. Tungsten oxide prices are influenced by a combination of chemical composition, purity, crystalline structure, availability, and industrial demand. Particularly, their electrochromic devices and optically-changing devices are intensively studied in terms of energy-saving. 43% quarter-over-quarter, driven by supply constraints and robust demand.