September 21, the European benzene market closed steadily, CIF ARA reported 801-802 US dollars / ton, FOB Rotterdam reported 800-801 US dollars / ton.

September 21, the US pure benzene market FOB US Gulf stabilized at 278-278.1 cents / gallon, equivalent to 834-834.3 US dollars / ton.

September 21 London Metal Exchange (LME) zinc stocks for 264750 tons, compared with the previous day down 1,500 tons, down 0.56%.

September 21 zinc (market) commodity index was 148.92, down 0.35 points from the previous day, the highest point within the cycle of 155.02 points (2017-08-21) fell 3.93%, compared with November 22, 2015 the lowest point 72.28 Point up 106.03%. (Note: cycle refers to 2011-09-01 so far)

September 20, the European ethylene market closed up part of the price, FD Northwest Europe prices unchanged, to close at 995-999 euros / ton; CIF Northwest Europe prices rose 2.5 US dollars / ton, to close at 1182-1186 US dollars / ton.

September 20, the European styrene market FOB fell 1 US dollars / ton, ARA reported 1336-1337 US dollars / ton.