Core Viewpoint - The Dalian Commodity Exchange (DCE) has announced an optimization of the registration time limits for warehouse receipts of polypropylene, linear low-density polyethylene, and polyvinyl chloride futures, effective from June 1, to enhance convenience for industry clients participating in delivery [1][2]. Group 1: Regulatory Changes - The registration time limit for warehouse receipts of polyvinyl chloride has been relaxed to align with that of polypropylene and linear low-density polyethylene [2]. - The new unified registration time limit for all three futures products, regardless of whether they are domestically or internationally produced, is set at a maximum of 180 calendar days from the production date [2]. Group 2: Market Implications - The adjustment addresses the practical needs of the spot market and industry clients, alleviating pressure on goods turnover and expanding the deliverable volume, thereby reducing delivery risks [2]. - The DCE aims to continuously track the operational development of related futures and spot markets, adhering to the principle of serving the real economy and innovating in line with market demands [2].