On Thursday, the government presented a list with 30 projects, worth 13.85 billion.
Kosor on Friday called for making efforts into the realisation of those plans as soon as possible.
Public companies are entrusted with compiling in the next 20 days proposals for funding and time-frames for those projects in the areas of energy, tourism, water management and the transport infrastructure.
Asked by reporters how those projects could be financed, PM Kosor said that apart from the state, private investors could join in.
"This is the government's offer to everybody who is interested and to those who are looking to the future," she said in Zagreb after a session of the gas infrastructure commission.
Asked to comment on the Opposition's remark that the list of projects greenlighted by her cabinet was only a list of the current government's wishes, Kosor said that the Opposition was trying to belittle the government's work.
She expressed conviction that a majority of those projects would be launched during the term of the incumbent government.
In this context she said that it should be taken into account that the time for the next parliamentary elections was at the end of 2011 or at the beginning of 2012.