14. Sale of Common Stock

On May 21, 2024, the Company entered into a Securities Purchase Agreement (the “Securities Purchase Agreement”) with certain institutional and retail investors (the “Purchasers”), pursuant to which the Company sold and issued, in a registered direct offering, an aggregate of 2,051,282 shares of the Company’s Common Stock, at a negotiated purchase price per share of $9.75 (the “Shares”), for aggregate gross proceeds to the Company of approximately $20,000,000, before deducting fees payable to the placement agents and other estimated offering expenses payable by the Company (the “Offering”). The net proceeds from the Offering is to fund (i) continued R&D and business development relating to the Company’s patent-pending process for the destruction of PFAS (Per- and polyfluoroalkyl substances), as well as the cost of installing at least one commercial treatment unit; (ii) ongoing facility capital expenditures and maintenance costs; and (iii) general corporate and working capital purposes.

The Shares were offered and sold by the Company pursuant to the Company’s “shelf” registration statement on Form S-3 and prospectus supplement relating thereto.

Craig-Hallum Capital Group LLC (“Craig-Hallum”) and Wellington Shields & Co. LLC (“Wellington Shields”) (Wellington Shields and Craig-Hallum together are known as the “Placement Agents”) served as the exclusive placement agents in connection with the Offering. The Company paid the Placement Agents a total cash fee of 6.00% of the aggregate gross proceeds in the Offering, which totaled approximately $1,200,000. The Company also reimbursed the Placement Agents certain expenses in connection with the Offering in an aggregate amount of approximately $80,000. As additional compensation to the Placement Agents in connection with the Offering, the Company also issued to the Placement Agents and two (2) of their members designees, warrants (the “Placement Agents’ Warrants”) to purchase an aggregate of 61,538 shares of Common Stock (the “Warrant Shares”), with the aggregate number of Warrant Shares that may be acquired under the Placement Agents’ Warrants equal to 3.0% of the number of Shares sold in the registered direct offering, at an exercise price per share equal to $12.19, which is equal to approximately 125% of the price per share of the Shares sold in the Offering. Neither the Placement Agents’ Warrants nor the Warrant Shares have been registered under the Registration Statement or otherwise. The Placement Agents’ Warrants have a term of five years, are exercisable at any time and from time to time, in whole or in part, during the four and one-half (4 ½) year period commencing 180 days from the last date of closing of the Offering which was May 24, 2024, and are exercisable via “cashless exercise” in certain circumstances. The aggregate fair value of the “Placement Agents’ Warrants” was determined to be approximately $331,000 using the Black-Scholes pricing model with the following assumptions: 58.78% volatility, risk free interest rate of 4.53%, an expected life of five years and no dividend. The aggregate fair market value of the Placement Agent’s Warrants was recorded as an offset to gross proceeds of the Offering and an increase to additional-paid-in capital.

After deducting costs incurred of approximately $1,544,000 (exclusive of the aggregate fair market value of the Placement Agents’ Warrants as discussed above) which were recorded as a deduction to equity in connection with the Offering, net cash proceeds to the Company totaled approximately $18,456,000. The Company has paid approximately $1,505,000 of the $1,544,000 costs incurred in connection with the Offering.