Financing activity	6 Months Ended
Jun. 30, 2025
Financing Activity
Financing Activity	10.Financing Activity 2024 Registered Direct Offering In the last quarter of 2024, the Company entered into a securities purchase agreement with certain investors, pursuant to which the Company agreed to sell and issue, in a registered direct offering (the “2024 Registered Direct Offering”) 19,900,000 common shares and issue Class B Warrants to purchase 9,950,000 Common Shares (“Class B Warrants”). On February 6, 2025, the Company received the final balance of committed funding from the 2024 Registered Direct Offering of $5 million and issued 5,000,000 common shares and 2,500,000 Class B Warrants. Out of the total $5 million net proceeds received in the three months ended March 31, 2025, the net proceeds attributable to common shares were $2.2 million and the net proceeds attributable to Class B Warrants were $2.8 million (Note 12). 2025 Registered Direct Offering On May 12, 2025, the Company entered into a securities purchase agreement with certain new and existing investors pursuant to which the Company in consideration of gross proceeds of $37 million, agreed to sell and issue, in a registered direct offering (the “ 2025 Registered Direct Offering”), an aggregate of 12,333,333 common shares of the Company, and accompanying Class C warrants to purchase an aggregate of 12,333,333 common shares to such new and existing investors (Note 12). Each Common Share and the accompanying Class C Warrant to purchase a Common Share were sold at a price of $3.00. During the second quarter of 2025, the Company received gross proceeds of $30 million and issued 9,000,000 million common shares and 10,003,333 Class C Warrants. The Company issued the remaining 3,333,333 common shares and 2,330,000 Class C Warrants in July 2025 after receipt of the remaining gross proceeds amounting to $7 million. The total expenses related to the 2025 Registered Offering were $0.3 million resulting in net proceeds of $36.7 million. Agreement with Korea Zinc On June 16, 2025, the Company entered into a Securities Purchase Agreement (the “Korea Zinc Agreement”) with Korea Zinc Company, Ltd. (“Korea Zinc”), pursuant to which the Company in consideration of gross cash receipt of $85.2 million, agreed to issue and sell to Korea Zinc 19,623,376 common shares of the Company and accompanying warrants to purchase an aggregate of 6,868,181 common shares (Note 12). The purchase price per share and accompanying warrant was set at $4.34. During the second quarter of 2025, upon receipt of the entire purchase amount of $85.2 million, the Company issued 19,623,376 common shares and accompanying warrants to purchase an aggregate of 6,868,181 common shares. The total expenses related to the Korea Zinc agreement were $1.9 million payable in equity (Note 13) resulting in net proceeds of $83.3 million. Pursuant to the Korea Zinc Agreement, subject to certain exceptions, Korea Zinc will have a right to participate in any public offering or private placement of any common shares or common share equivalents of the Company primarily for capital raising purposes (each a “Proposed Offering”) up to such amount of securities to maintain its percentage ownership in the Company at the time of such Proposed Offering. Such right to participate in future financings will expire upon the earlier to occur of (i) June 16, 2030, (ii) the date on which Korea Zinc owns less than all of the common shares it purchased and subscribed pursuant to the Korea Zinc Agreement and (iii) immediately after a closing of a Proposed Offering where Korea Zinc does not exercise its participation right in full. Additionally, the Korea Zinc Agreement provides that a representative of Korea Zinc may serve as a non-voting observer to the Company’s board of directors, which representative may have access to certain information and attend and provide input at meetings of the Company’s board of directors, subject to certain limitations.

Financing activity

6 Months Ended

Jun. 30, 2025

10.Financing Activity

2024 Registered Direct Offering

In the last quarter of 2024, the Company entered into a securities purchase agreement with certain investors, pursuant to which the Company agreed to sell and issue, in a registered direct offering (the “2024 Registered Direct Offering”) 19,900,000 common shares and issue Class B Warrants to purchase 9,950,000 Common Shares (“Class B Warrants”). On February 6, 2025, the Company received the final balance of committed funding from the 2024 Registered Direct Offering of $5 million and issued 5,000,000 common shares and 2,500,000 Class B Warrants. Out of the total $5 million net proceeds received in the three months ended March 31, 2025, the net proceeds attributable to common shares were $2.2 million and the net proceeds attributable to Class B Warrants were $2.8 million (Note 12).

2025 Registered Direct Offering

On May 12, 2025, the Company entered into a securities purchase agreement with certain new and existing investors pursuant to which the Company in consideration of gross proceeds of $37 million, agreed to sell and issue, in a registered direct offering (the “ 2025 Registered Direct Offering”), an aggregate of 12,333,333 common shares of the Company, and accompanying Class C warrants to purchase an aggregate of 12,333,333 common shares to such new and existing investors (Note 12). Each Common Share and the accompanying Class C Warrant to purchase a Common Share were sold at a price of $3.00.

During the second quarter of 2025, the Company received gross proceeds of $30 million and issued 9,000,000 million common shares and 10,003,333 Class C Warrants. The Company issued the remaining 3,333,333 common shares and 2,330,000 Class C Warrants in July 2025 after receipt of the remaining gross proceeds amounting to $7 million. The total expenses related to the 2025 Registered Offering were $0.3 million resulting in net proceeds of $36.7 million.

Agreement with Korea Zinc

On June 16, 2025, the Company entered into a Securities Purchase Agreement (the “Korea Zinc Agreement”) with Korea Zinc Company, Ltd. (“Korea Zinc”), pursuant to which the Company in consideration of gross cash receipt of $85.2 million, agreed to issue and sell to Korea Zinc 19,623,376 common shares of the Company and accompanying warrants to purchase an aggregate of 6,868,181 common shares (Note 12). The purchase price per share and accompanying warrant was set at $4.34. During the second quarter of 2025, upon receipt of the entire purchase amount of $85.2 million, the Company issued 19,623,376 common shares and accompanying warrants to purchase an aggregate of 6,868,181 common shares. The total expenses related to the Korea Zinc agreement were $1.9 million payable in equity (Note 13) resulting in net proceeds of $83.3 million.

Pursuant to the Korea Zinc Agreement, subject to certain exceptions, Korea Zinc will have a right to participate in any public offering or private placement of any common shares or common share equivalents of the Company primarily for capital raising purposes (each a “Proposed Offering”) up to such amount of securities to maintain its percentage ownership in the Company at the time of such Proposed Offering. Such right to participate in future financings will expire upon the earlier to occur of (i) June 16, 2030, (ii) the date on which Korea Zinc owns less than all of the common shares it purchased and subscribed pursuant to the Korea Zinc Agreement and (iii) immediately after a closing of a Proposed Offering where Korea Zinc does not exercise its participation right in full. Additionally, the Korea Zinc Agreement provides that a representative of Korea Zinc may serve as a non-voting observer to the Company’s board of directors, which representative may have access to certain information and attend and provide input at meetings of the Company’s board of directors, subject to certain limitations.