Trading was halted before the market opened, ahead of an announcement from ChineseEstates that said late Wednesday the company may appeal any move by the government to seize its property.
ChineseEstates, which owns and operates many shopping centers in Hong Kong, said it would make further announcements "if and when there is any significant development" in respect to the Macau land.
The trial of ChineseEstates Chairman and CEO Joseph Lau was delayed for the second time on Monday after his lawyer said the billionaire was too unwell to stand trial.
The court ruling has put into question the status of ChineseEstates apartment development called La Scala, with Macau lawyers earlier saying that the government could confiscate the site because the sale process was conducted illegally.
The Macau government's statement came after the Court of Final Appeal ruled last week in a case against a Macau public works official that he accepted bribes from the chairman of ChineseEstates, Joseph Lau, to win development rights to the land.