[Chinalco.com] Currently, there are two main types of alumina prices - proportional pricing and spot pricing: Proportional pricing is generally priced at 14%-15% of London's aluminum price; the domestic market is generally priced at 17%-18% of Shanghai Aluminum. The spot market electricity price changes with the market, the current international spot market pays more attention to Nalco bidding price, while the domestic is basically non-aluminum spot price. Guangzhou Jointair Co., Ltd. , https://www.jointairaccessories.com