Construction expected to start in the autumn, with new furnaces operational by late 2025
Company proposes new electric arc furnace on 41-acre site on Teesside
1.6m sq ft development is in the Teesside freeport zone
Dame Meg Hillier calls for NAO investigation into scheme
Firm submits plans to build 373,185 sq ft manufacturing facility
The development is due to be completed in autumn next year
The 4,500-acre port is being sold by Brookfield and would tie into a wider Teesside regen plan