The company, part of USD 100 billion Tata Group, also said it is separately starting the processes for sale of its South Yorkshire-based Specialty Steels business and Hartlepool pipe mills (other than the 20-inch Tube Mill) (both in UK).
The announcement has come after the company screened around 200 potential financial and industrial investors for sale of its loss-making UK operations.
"The Board of Tata Steel has decided to also look at alternative and more sustainable portfolio solutions for the European businesses.
However, it was not immediately ascertained whether they will go ahead with their sale plan of the UK business.
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The company and its advisers then contacted around 200 potential financial and industrial investors around the world to explore their interest in the business.
In May, seven expressions of interest were taken forward to the next stage of a possible sale process.
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Chatterjee, who is also the Group CFO of Tata Steel, said it is "too early to give any assurances about the success of these talks".
"Such success, especially inclusion of the UK business in the potential JV, would depend on several issues including finding a suitable outcome for British Steel Pension Scheme (BSPS), successful discussions with the UK trade unions and the delivery of policy initiatives and other support from the Governments of the UK and Wales," he added.
"We continue to be actively engaged with both the UK and the Welsh Governments, the trade unions and the Pension Trustees," he said.
On the sale of the Speciality Steels business, he said: "As part of this development in our European strategy, we will now also begin separate processes for potential sale of the South Yorkshire-based Specialty Steels business and Hartlepool pipe mills (other than the 20-inch Tube Mill) in the UK."
Both of these operations are largely independent of the strip products supply chain with their own specific characteristics, he added.
Tata Steel Europe CEO Hans Fischer said: "This is a welcome development, not just for Tata Steel but also for the European steel sector more broadly.
"Although there's much work still to be done on any strategic collaboration I'm confident that the direction is the right one - towards higher performance and capability to serve customers."
He added that the firm will continue to communicate with its employees and inform and consult both works councils and trade unions as these discussions develop.
The board continues to support the business so that Tata Steel Europe can secure the supply chain to customers of the premium steel products they demand and maintain strong relationships with other stakeholders, it said.
On March 29, Tata Steel announced process for sale of its UK business, including the potential sale of the business as a whole or in parts.
The bids were considered in detail on the basis of their commercial value and prospects for the future sustainability and were also reviewed in the light of uncertainties caused by the UK referendum and the outcome of the UK Government's consultation on the British Steel Pension Scheme.