In order to ensure the quality and safety of the goods in storage, the exchange stipulates that if the linear low-density polyethylene produced in China applies for the registration of standard warehouse receipts, the date of application for registration shall not exceed 180 natural days from the date of production of the goods; If the linear low density polyethylene produced overseas applies for the registration of the standard warehouse receipt, the date of application for registration shall not exceed 180 natural days from the import date of the import goods declaration form (or the entry date of the entry goods filing list). The exchange also stipulates that the standard warehouse receipt of linear low density polyethylene must be cancelled before the last working day of March each year.

The exchange said that the registration date limit of LLDPE warehouse receipts is closely related to the validity period of warehouse receipts. These two regulations enable customers to receive futures commodities within 1.5 years at most from the production date, and the quality and packaging materials of the commodities can meet the use requirements, which is conducive to preventing delivery risks.