Moderna Inc—of American Armenian businessman Noubar Afeyan—is in talks with several countries for supply agreements for its experimental coronavirus vaccine, the company said on Wednesday, adding that it had already received about $400 million in deposits for potential supply, Reuters reported.

Last week, Moderna announced the start of a late-stage trial on 30,000 people to demonstrate that its vaccine was safe and effective, the final hurdle prior to regulatory approval. It has said the vaccine could be ready for widespread use by the end of this year.

“As we pivot to a commercial stage company, we recognize the need for responsible pricing in the face of the pandemic,” Moderna Chief Executive Officer Stephane Bancel said in a statement.