For years, such enterprises have survived on bank loans and local government backing, robbing more deserving companies of financial resources that could have otherwise contributed to local growth.
The drop in futures mirrored weakness that has prevailed in the physical market since last week, as steel mills reduced output to comply with anti-smog measures.
Physical gold demand picked up pace in major Asian hubs this week, with bullion being sold at a premium for the first time in more than three months in India.
The level 1 alert, the highest in China's four-tier pollution warning system, has been in place since March 1 and requires steel mills to curb output by 40%-70%.