All changes in the data are reported on a three-month moving average (3MMA) basis.
Of the 28 specialty chemical segments monitored, 15 expanded in May, 10 markets experienced decline and three featured no change. During May, large market volume gains (1.0% and over) occurred in oilfield chemicals and plastics compounding.
The overall specialty chemicals volume index was up 5.1% on a year-over-year (Y/Y) 3MMA basis. The index stood at 112.9% of its average.