RE:RE:RE:Buying all along New Issue July 18, 2022 Hamilton Thorne Ltd. $120,000,000 Common Shares Preferred Shares Warrants Units Subscription Receipts Debt Securities This short form base shelf prospectus (“Prospectus”) relates to the offering for sale by Hamilton Thorne Ltd. (“Hamilton Thorne” or the “Corporation”) from time to time, during the 25-month period that this Prospectus, including any amendments thereto, remains valid, of up to $120,000,000 in the aggregate of: (i) common shares (“Common Shares”) in the capital of the Corporation; (ii) preferred shares (“Preferred Shares”) in the capital of the Corporation; (iii) warrants (“Warrants”) to purchase other Securities (as defined below) of Hamilton Thorne; (iv) units (“Units”) comprising of one or more of the other Securities; (v) subscription receipts (“Subscription Receipts”); and (vi) debt securities of the Corporation (the “Debt Securities” and together with the Common Shares, Preferred Shares, Warrants, Units and Subscription Receipts, collectively referred to herein as the “Securities”). The Securities may be offered separately or together, in amounts, at prices and on terms determined based on market conditions at the time of the sale and as set forth in an accompanying prospectus supplement (a “Prospectus Supplement”).