Companies often warn the market to expect an important announcement.

The nation was waiting for an important announcement on the outcome of the talks.

Now be about your business, as I have an important announcement to make.

"Stand by for an important announcement from the President's palace!"

We have called you together to make two important announcements.

"Tell them to listen to a very important announcement," he said.

A general meeting had been called that day for an important announcement.

But we hope to have other important announcements later this year.

And your excuse was that he wanted to make an important announcement.

However he did make the occasional important announcement such as this one.