Khan Fareeha bought DRTTF

Footnotes

Represents the number of common shares of the issuer that the reporting person purchased in the issuer's rights offering pursuant to the exercise of her additional subscription privilege, which entitled eligible holders of rights who fully exercised their basic subscription privilege the right to purchase additional common shares that remained unsubscribed for at the expiration of the rights offering at a price of C$0.35 per whole common share, on a pro rata basis. The reporting person exercised her basic subscription privilege in full, as previously reported on Form 4. The rights offering closed on January 9, 2024. The reporting person did not receive confirmation of the receipt of the common shares issued pursuant to the exercise of the additional subscription privilege until January 18, 2024.; The effective purchase price of the common shares of the issuer underlying the subscription rights issued in connection with the issuer's rights offering is C$0.35 per one common share. The reported price was calculated using the exchange rate of US$1.00 equals C$1.3202 as of December 29, 2023, as announced by the Federal Reserve Bank on January 2, 2024.