American vaccine maker Moderna is to announce today it plans to build its promised Canadian production facility in Montreal.

Prime Minister Justin Trudeau, Moderna CEO Stephane Bancel, and Quebec Premier Francois Legault are scheduled to attend a Friday morning health care announcement in the city.

Montreal Mayor Valerie Plante confirmed the news Thursday, but Moderna would only say that it was still finalizing an agreement to construct a bio-manufacturing facility in Canada.

Moderna signed an initial agreement with the federal government last August to bring such a factory to Canada, with the details on where to be worked out.

At the time Bancel said he believed it would allow Canada to be ready for the next virus.

The Canadian agreement includes both production and vaccine research components with the building to be completed by 2024.