Under the amendments to be lodged in coming days, parliament would get the power to clear each major sale by decree, setting the parameters of the transaction but not the price.

"Companies would no longer be sold by fiat based on lists," the opposition party's deputy group leader Luka Mesec said in reference to the infamous privatisation to-do list of 15 companies, of which three have already been sold.

The party will also seek to increase the number of supervisors at the Slovenia Sovereign Holding from five to ten, with five appointed by parliament as is the case now and five hailing from the ranks of employees of state-owned firms.

"Only employees in state-owned firms are truly interested in the long-term development" of companies to be privatised, according to Mesec.