[Huafeng Aluminum Annual performance pre-increase report: net profit for 2021: 430-510 million yuan] Huafeng Aluminum released its annual performance pre-increase report for 2021. It is expected that the net profit attributed to shareholders of listed companies will be 430 million yuan to 510 million yuan in 2021, compared with the same period last year. It will increase by 181 million yuan to 261 million yuan, an increase of 72.69% to 104.82% compared with the same period last year.