The chancellor is going to put the country's 40 per cent stake in Eurostar up for sale.
The aim is to raise hundreds of millions for the government to help bring down the country's debt which curently stands at £1.4 trillion.
The government says it aimes for the sale to rais about £20 billion by the year 2020.
The Chancellor George Osborne said; "the sale proceeds would make an important contribution to the task of reducing the public sector debt."
But the general secretary of the RMT rail union warns this may be the beginning of the sale of many UK railways sold to foreign lands.
To explain who may be interested, and how it will happen, is the Evening Standard's Alex Lawson.