Futures Daily News ( Alice Zhao ）On May 25, Zhengzhou Commodity Exchange issued a notice solicitation for comments and Suggestions on thermal coal option contracts, with a deadline of May 29. On the same day, Dalian Commodity Exchange issued a notice to solicit public opinions on option contracts for polypropylene (PP), linear low-density polyethylene (LLDPE) and polyvinyl chloride (PVC) until June 1. This marks an acceleration in the pace of listing of these options instruments.