Core Viewpoint - The delivery grade of alumina futures requires certification, meaning not all alumina meeting national standards can be directly delivered without prior registration or approval from the Shanghai Futures Exchange [1] Group 1: Delivery Requirements - Only alumina from registered brands or recognized producers can be used for physical delivery [1] - Not all alumina meeting the GB/T 24487-2022 standards (AO-1 or AO-2) is eligible for delivery without prior approval [1] - Delivery requires corresponding quality documentation, such as quality certificates for domestic products or inspection certificates and customs declarations for imported products [1] Group 2: Certification Process - Domestic alumina must be registered with the exchange, covering major production areas like Shandong and Shanxi [2] - Imported alumina must be from brands recognized by the exchange, including two companies from Australia [2] Group 3: Quality Documentation - Each batch of delivery must include a quality certificate and is subject to inspection by the exchange [3]