Why Did US Glycerine Prices Rebound 11.4% After a Sharp August Decline?

Glycerine prices in the USA experienced significant volatility in August 2026, initially declining as abundant coproduct availability met weak downstream demand. Refiners continued converting coproduct material into USP grades, while subdued pharmaceutical, personal-care, food and beverage, tobacco and resin demand limited buying interest. Softer soybean-oil values and US natural gas prices of $2.79/MMBtu further encouraged biodiesel and renewable-diesel production, increasing coproduct availability. USDA soybean production and crush forecasts also reinforced expectations for ample feedstock and sustained Glycerine output. The market weakened from $2,716.00/MT at the start of August to an average of $2,533.00/MT, with weekly Glycerine prices falling toward $2,200.00/MT before recovering to approximately $2,450.00/MT, an 11.4% weekly increase. The late rebound was supported by distributor inventory adjustments and emerging vaping-sector demand. Despite this recovery, the Glycerine market outlook remains bearish, as strong coproduct supply, lower feedstock costs, low energy prices and uncertain US biofuel policy continue to weigh on fundamentals. Short-term restocking and vaping demand may provide temporary price support.