The shares will represent 12.6 percent of the increased share capital of Alfesca, and the deal will be completed within the next eight weeks.

The deal is conditional upon Alfesca publishing a prospectus.

“The investment by His Highness is the result of a close dialogue and relationship that has built up over the last 2 years and the board of directors of Alfesca warmly welcome His Highness as a significant shareholder during an exciting period in the development of Alfesca,” the company said in a statement.