...company, power firm CEZ , until the process is over, Finance Minister Miroslav Kalousek said.
"The government will discuss the sale of CEZ in a closed meeting. We will only release information once the process is completed," the daily Hospodarske Noviny quoted Kalousek on Thursday as saying.
The government has approved the sale of the stake through the stock market, but has not released any details.
Czech brokers are vying to organise the sale of the stock worth some 43 billion crowns ($2.09 billion).
The daily reported its sources said the ministry would not run a tender to pick the brokerage to sell the shares, but instead asked several brokers to submit bids directly.
Some brokers said the sale would take several months if the ministry sold small portions daily through the market.
A ministry spokesman was not immediately available for comment.
CEZ shares reached a record high of 1,037 crowns on Thursday before dipping back to 1,028, driven by a buyback of up to 10 percent of the shares, approved on Monday, and rising electricity prices in eastern Europe.