First Minister Carwyn Jones unveiled the scale of investment after meeting senior officials at the company during his visit to India last week, BBC reports.

The company confirmed the investment was new money and was an "expression of intention and vision for Port Talbot and the steel industry in Wales".

Mr Jones said: "Mr Muthuraman explained to me that Tata steel plans to invest up to £800m over the next five years in their Welsh facilities. This substantial investment will be used to improve production, product mix, quality and product range at their plants in Wales.”

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"He noted too that Port Talbot is one of the best sites in Europe for steel making."

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"Mr Muthuraman paid tribute to the quality of the workforce available in Wales and recognised the importance of the continuing partnership with the Welsh government in creating confidence for long-term investment decisions.”