On January 1, 2016, the Company issued 164,500 shares of common stock to the holders of notes with a term of three years, bear interest at 10% per annum, and are convertible into one share of common stock, par value $0.001 per share, with the initial conversion ratio equal to $0.50 per share, as payment for accrued interest due as of December 31, 2015.

On January 28, 2016, the Company entered into Amendment No. 3 to Financing Agreement and Reaffirmation of Guaranty (the "Third Amended Financing Agreement") with Lender, pursuant to which Lender agreed to cause its bank to arrange for the issuance to a certain customer of the Company a standby letter of credit in the amount of $2,000,000 (the "Letter of Credit") to permit the Company to enter into a contract for mercury capture program with such customer. The Letter of Credit is to guarantee the Company's performance under its contract with such customer.

Under the Third Amended Financing Agreement, and in consideration for the issuance of the Letter of Credit for the benefit of the Company, the Company shall pay AC Midwest a fee equal to 12.0% per annum of the amount available to be drawn under the Letter of Credit (the "Letter of Credit Fee") payable on the last day of each calendar month. In addition, and in consideration for the issuance of the Letter of Credit, the Company has agreed to issue to AC Midwest (i) a five year warrant to purchase 2,000,000 shares of common stock at an exercise price of $0.35 per share of common stock (the "Third Warrant"), and (ii) a Senior Secured Letter of Credit Note (the "LC Note") to evidence any indebtedness owed by the Company arising from any draws made under the Letter of Credit. The Third Warrant shall be subject to certain anti-dilution adjustments including percentage based anti-dilution protection requiring that the aggregate number of shares of common stock purchasable upon its initial exercise not be less than an amount equal to 7.2% of the Company's then outstanding shares of capital stock on a fully diluted basis.