It is said that US non-fuel use propylene inventories fell by 8.4% in the week ended 6 February compared with one week earlier. US propylene inventories last week were at 3.263m bbl, according to the EIA. The figure is up by 28% from 2.550m bbl one year earlier, the government said. Non-fuel use propylene is intended for petrochemical manufacturing, including polymer and chemical-grade propylene.