Nissan and Huntsmen are among the firms on their way into Lynemouth to try create job opportunities for laid-off Alcan workers.
The companies are gathering to hold an internal jobs fair at the smelter.
Rio Tinto confirmed it is closing the smelter and would make more than 500 people redundant.
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100s gathered at a Hartlepool school to release balloons in memory of the two children who were killed in a horrific French car crash.
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