Robuta

https://www.basf.com/us/en/media/news-releases/2015/04/P-US-14-82
BASF will begin increasing the price for caprolactam and polyamide (PA) 6 polymer by $0.05 per pound in North America, effective May 15, 2015 or as contracts...
basfincreasepricescaprolactampolyamide