An environmental regulatory panel is to vote on whether to issue an air quality permit for the proposed $1.1 billion Big River Steel mill that backers want to build in northeast Arkansas.
The Pollution Control and Ecology Commission on Friday is to hear arguments from lawyers from steel business competitor Nucor, which is trying to block construction of the new mill.
An administrative law judge earlier rejected Nucor's challenge, but the permit still has to be approved by the commission for the plant to be built.
Economic development officials are eager for work to start on the plant and groundbreaking is tentatively set for late June in Osceola.
A number of related businesses are planning to open in the area to support the mill.