The company's short form base shelf prospectus dated Aug. 21, 2020, was filed with and accepted by the TSX Venture Exchange, and filed with and receipted by the British Columbia Securities Commission, pursuant to the provisions of the Securities Act (British Columbia), and the Ontario Securities Commission, pursuant to the provisions of the Securities Act (Ontario), on Aug. 21, 2020. The prospectus was also filed under Multilateral Instrument 11-102, Passport System, in Alberta, Saskatchewan, Manitoba, Quebec, New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland and Labrador, Yukon, Nunavut, and Northwest Territories.

Further to an at-the-market (ATM) offering of shares made pursuant to a prospectus supplement dated Dec. 30, 2020, to the company's short form base shelf prospectus dated Aug. 21, 2020, the exchange has accepted for filing documentation with respect to the sales set out below under the ATM distribution. The company raised aggregate gross proceeds of $2,573,315.30 (U.S.) pursuant to the ATM distribution from January, 2021, to September, 2022, as set out below.

The exchange has been advised by the company that sales under the ATM distribution during the quarter ended March 31, 2021, occurred for gross proceeds of $159,712.66 (U.S.).

Agent:  Stifel, Nicolaus & Company Inc.

Offering:  41,000 shares in aggregate during the quarter

Share price:  varying prices during the quarter, with an average sale price of $3.89543 (U.S.) per share

Agent's warrants:  not applicable

Overallotment option:  not applicable

Agent's commissions:  2.75 per cent of the gross proceeds of the offering, being $4,392.10 (U.S.) in aggregate for the quarter

The exchange has been advised by the company that sales under the at-the-market (ATM) distribution during the quarter ended June 30, 2021, occurred for gross proceeds of $1,057,951.47 (U.S.).

Agent:  Stifel, Nicolaus & Company

Offering:  320,950 shares in aggregate during the quarter

Share price:  varying prices during the quarter, with an average sale price of $3.29631 (U.S.) per share

Agent's warrants:  not applicable

Overallotment option:  not applicable

Agent's commission:  2.75 per cent of the gross proceeds of the offering, being $29,093.67 (U.S.) in aggregate for the quarter

The exchange has been advised by the company that sales under the ATM distribution during the quarter ended Sept. 30, 2021, occurred for gross proceeds of 456,957.28 (U.S.).

Agent:  Stifel, Nicolaus & Company

Offering:  155,000 shares in aggregate during the quarter

Share price:  varying prices during the quarter, with an average sale price of $2.94811 (U.S.) per share

Agent's warrants:  not applicable

Overallotment option:  not applicable

Agent's commission:  2.75 per cent of the gross proceeds of the offering, being $12,566.32 (U.S.) in aggregate for the quarter

The exchange has been advised by the company that sales under the ATM distribution during the quarter ended March 31, 2022, occurred for gross proceeds of $674,015.64 (U.S.).

Agent:  Stifel, Nicolaus & Company

Offering:  427,997 shares in aggregate during the quarter

Share price:  varying prices during the quarter, with an average sale price of $1.57481 (U.S.) per share

Agent's warrants:  not applicable

Overallotment option:  not applicable

Agent's commission:  2.75 per cent of the gross proceeds of the offering, being $18,535.43 in aggregate for the quarter

The exchange has been advised by the company that sales under the ATM distribution during the quarter ended Sept. 30, 2022, occurred for gross proceeds of $224,678.25 (U.S.).

Agent:  Stifel, Nicolaus & Company

Offering:  340,058 shares in aggregate during the quarter

Share price:  varying prices during the quarter, with an average sale price of 66.071 U.S. cents per share

Agent's warrants:  not applicable

Overallotment option:  not applicable

Agent's commission:  2.75 per cent of the gross proceeds of the offering, being $6,178.66 (U.S.) in aggregate for the quarter

For further information, please refer to the company's short form base shelf prospectus dated Aug. 21, 2020, the prospectus supplement dated Dec. 30, 2020, and the news release dated Dec. 30, 2020, which are available under the company's SEDAR profile.