Cotton June 3, 2004

PTA 65438+PTA 18 in February 2006

Rapeseed oil June 8, 2007

Zinc March 26, 2007

In short, just open a trading software and find the index contract or continuous contract of this variety. Pull the K-line chart to the farthest point to see which day it is, that is, the listing day. Free futures software will be downloaded by all companies, and it is very hard to find me. I'll find some for you temporarily. Really begged me to find it, for points.