| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| GIUSTRA FRANK | 10%+ Owner | 17 CHESTER ROW, LONDON,, UNITED KINGDOM | /s/ Giustra Frank | 15 Sep 2025 | 0001233215 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| holding | STEX | Exchangeable Shares | 28 May 2025 | Common Stock | 17.2M | I | F1, F2 |
| Id | Content |
|---|---|
| F1 | Represents shares of common stock, par value $0.001 per share (the "Common Stock"), of the Issuer that may be issued from time to time upon the exchange, retraction, or redemption of exchangeable shares of BST Sub ULC, an unlimited liability company organized under the laws of the Province of British Columbia and a wholly owned subsidiary of the Issuer (the "Exchangeable Shares"). Currently, approximately 5.01% of the Exchangeable Shares are exchangeable for Common Stock, with the remainder becoming exchangeable upon stockholder approval, which is expected within 60 days. Pursuant to applicable rules of the Nasdaq Stock Market, the aggregate number of Exchangeable Shares that may be exchanged for Common Stock may not exceed 19.9% of the total outstanding Common Stock until such issuance is approved by the Issuer's stockholders. The Exchangeable Shares do not have an expiration date. |
| F2 | Consists of (i) 16,170,209 Exchangeable Shares indirectly held by the Reporting Person through Avanico Limited, an entity controlled by the Reporting Person and (ii) 1,023,431 Exchangeable Shares held by the Reporting Person through the Frank Giustra 2018 Trust. |