Northern Star Resources experienced its largest share decline in six years after the company reduced its production forecast. Bloomberg posted on X, highlighting that the gold miner faced operational challenges at one of its processing mills, leading to the adjustment in output expectations. The company has been dealing with technical issues that have impacted its ability to meet previous production targets. This development has raised concerns among investors, contributing to the significant drop in share value. Northern Star is working to resolve the issues and aims to stabilize operations to restore investor confidence.