Polyolefin Hall is an e-commerce service platform operated by Donghua Energy (Ningbo) E-Commerce Co., Ltd., mainly dealing in products related to the plastic and rubber industries. Leveraging its existing industry background, it efficiently integrates the business flow, capital flow, information flow, and warehousing logistics of the industrial chain. It combines services such as trading, information, finance, logistics, technical support, and big data to create a professional, secure, fast, and easy one-stop e-commerce service platform for the plastic and rubber trades.