The deadline for submitting applications for taking part in the tender expired at 1600 hours Belgrade time on Friday, the government's asset-selling agency said in a statement.
The tender procedure was launched earlier this month. The deadline for submitting binding offers is October 26.
In January, the Serbian government signed a deal to take over at a token price the loss-making steelworks in Smederevo from U.S. Steel in a bid to avoid closure and save over 5,000 jobs.