I believe all this is meant to do is replace the current $300M prospectus, don't think there is anything special going on here. 

From footnote 2 of ex. 107 fees table below, my bold.....

(2) The Registrant’s registration statement on Form F-10, initially filed on April 29, 2021, and subsequently amended on July 8, 2021 (File No. 333-255631) (the “Prior Registration Statement”), previously registered $300,0000,000 of which $298,953,354.68 remains unsold. In connection with the Prior Registration Statement, the Registrant paid $30,179.80 after offsetting registration fees of $32,730 by $2,550.20 previously paid by the Registrant in connection with its registration statement on Form F-10 (Commission File No. 333-227873) initially filed with the Commission on October 17, 2018, pursuant to which no securities were sold. Pursuant to Rule 457(o) of the Securities Act, the Registrant is registering $150,000,000 in aggregate offering amount of securities of the Registrant. Accordingly, a registration fee of $0 is being paid in connection with this Registration Statement. In accordance with the Securities Act, the offering of the unsold securities on the Prior Registration Statement will be deemed terminated as of the date of effectiveness of this Registration Statement.