On April 12, 2018, the Company closed an asset purchase agreement with North American Lithium, Inc. (“NAL”) and Selective Adsorption Lithium, Inc. (“SAL”), a company formerly controlled by shareholders of NAL, pursuant to which the Company acquired NAL’s data, analysis and reports related to lithium extraction from oilfield brines and all the outstanding shares of SAL, which held certain intellectual property (the “Acquisition”). The consideration for the Acquisition consisted of $875,000 cash, a 5% royalty on future product income, as defined, 4,700,000 common shares at closing and 20,609,488 common shares (“Milestone Shares”) based on

the Company achieving certain milestones related to the filing of additional patents and raising additional financing. The total value of the Acquisition, including the Milestone Shares, was valued at approximately $9.1 million and recorded as intellectual property (the, “Intellectual Property”).

Additionally, the Company has filed additional patents to expand its intellectual property for the development of lithium extraction technologies. The Company’s intangible assets as of June 30, 2026, are as follows (in thousands):

Amortization expense for the three months ended June 30, 2026 and 2025 was $0.3 million and $0.3 million, respectively.