Chalco said on Friday it boosted annual aluminium output by 16 percent in 2018.
Chalco Mining News
Chalco is discussing "transformation, upgrading and development," with other shareholders of Shandong Huayu.
Operating pressure on smelters is "reaching the extreme limit" even worse than in the fourth quarter of 2015.
The listed arm of Chinalco, China's biggest state-run aluminium producer, posted net income of 640.9 million yuan ($92.31 million) for July-September.
Chalco produced approximately 3.61 million tonnes of aluminium last year, according to a filing to the U.S. Securities and Exchange Commission last week.