Notes payable consist of the following as of March 31, 2021 and December 31, 2020:

During the three months ended March 31, 2021, the Company converted debt and accrued interest into 20,391,774 shares of the Company’s common stock.

Promissory Note Extensions

On January 7, 2021, 620 Dyer LLC (“620 Dyer”), a subsidiary of the Company, entered into Amendment No. 1 (the “Loan Agreement Amendment”) to the Loan Agreement between 620 Dyer and Elizon DB Transfer Agent LLC (“Elizon”), dated as of January 18, 2018 (the “Loan Agreement”). The Loan Agreement Amendment, among other things, amends the maturity date of the Loan Agreement from January 18, 2021 to January 18, 2022. In connection with the extension, 620 Dyer is required to pay Elizon an extension fee equal to 1% of the outstanding principal balance of the Loan Agreement by the earlier of (1) the maturity date of the Loan Agreement, (2) July 18, 2021 or (3) the closing of the sale of any real property or securities of Hydrofarm Holdings Group Inc. by the Company or 620 Dyer.

On January 8, 2021, the Company entered into an amendment to the Secured Promissory Note issued by Terra Tech Corp. (the “Borrower”) to Arthur Chan (the “Lender”) on January 10, 2020. The Loan Agreement Amendment, among other things, amends the maturity date of the Loan Agreement from January 10, 2021 to July 10, 2021.

Series A Preferred Stock Purchase Agreement

On January 22, 2021, the Company entered into a Series A Preferred Stock Purchase Agreement with Michael A. Nahass, pursuant to which the Company agreed to purchase from Mr. Nahass the four shares of the Company’s Series A Preferred Stock held by Mr. Nahass for an aggregate purchase price of $3.10 million, of which (i) $1.00 million was paid in cash, (ii) $1.05 million was paid in the form of an unsecured promissory note bearing interest at the rate of 3% and maturing on or about July 25, 2021 and (iii) $1.05 million was paid in the form of an unsecured promissory note bearing interest at the rate of 3% and maturing on or about January 25, 2022.

Amendment of Existing Senior Convertible Promissory Notes and Securities Purchase Agreement

On January 25, 2021, the Company entered into several agreements with the accredited investor (the “Lender”) that holds the promissory notes under the 2018 Securities Purchase Agreement. The amendments, among other things, (1) extended the maturity date of the June 2019 Note from January 26, 2021 to December 31, 2021 and (2) extended the maturity date of the October 2019 Note from April 21, 2021 to December 31, 2021. In connection with the Note Amendments, the Company issued to the Lender warrants to purchase 5,000,000 shares of the Company’s common stock (the “Old Note Warrants”) at an exercise price of $0.01 per share. The Old Note Warrants are exercisable at any time before the close of business on June 25, 2026. The Old Note Warrants contain cashless exercise provisions and, to the extent not previously exercised, will be automatically exercised via cashless exercise on June 25, 2026.

In conjunction with the above amendments, the Company entered into a Securities Purchase Agreement with certain accredited investors (the “Purchasers”), pursuant to which the Company agreed to sell to the Purchasers $3,500,000 in aggregate principal amount of the Company’s senior convertible promissory notes (the “Notes”) and warrants to purchase shares of the Company’s common stock (the “Warrants”), exercisable at any time before the close of business on June 25, 2026. The Warrants are comprised of 15,000,000 “A Warrants” with an exercise price of $0.01 per share and 15,000,000 “B Warrants” with an exercise price of $0.2284 per share.

The Notes, which are convertible into common stock at any time at the discretion of the respective Purchasers at a conversion price of $0.175 per share of common stock, will bear an interest rate of 3%. The Notes mature on or about July 24, 2022 unless accelerated due to an event of default. The Company has the right to prepay the Notes at any time upon 10 days’ prior notice to the Purchasers. If the Company elects to prepay the Notes, the Company must pay the respective Purchasers an amount in cash equal to the product of (i) the sum of the then-outstanding principal amount of the Notes and all accrued but unpaid interest, multiplied by (ii) (x) 110%, if the prepayment date is within 90 days of the original issue date, (y) 115%, if the prepayment date is between 91 days and 180 days following the original issue date or (z) 125%, if the prepayment date is after the 180th day following the original issue date.

The Company can demand that the Purchasers convert the Notes at any time, on five calendar days’ notice, that (i) the daily dollar volume-weighted average price for the Company’s common stock for the prior five consecutive trading days is $0.30 or more and (ii) (1) the shares underlying the Notes have been registered with the U.S. Securities and Exchange Commission (the “SEC”) or (2) there is a fundamental transaction that has been announced by the Company.

The Notes contain standard and customary terms concerning events of default. Events of default include, among other things, any failure to make payments when due, failure to observe or perform material covenants or agreements contained in the Notes, a material default under the Securities Purchase Agreement or related transaction documents or any other material contract to which the Company or any of its subsidiaries is a party, the breach of any representation or warranty in the Notes or the Securities Purchase Agreement, the bankruptcy or insolvency of the Company or any of its subsidiaries, the Company’s common stock not being eligible for listing or quotation on a trading market and not eligible to resume listing or quotation for trading within 5 trading days, the Company’s failure to meet the current public information requirements under Rule 144 under the Securities Act of 1933, as amended, the Company’s failure to file required reports with the SEC, and the Company’s failure to maintain sufficient reserved shares for issuance upon conversion of the Notes and exercise of the Warrants. If any event of default occurs, subject to any cure period, the full principal amount, together with interest (including default interest of 18% per annum) and other amounts owing in respect thereof through the date of acceleration shall become, at the Purchaser’s election, immediately due and payable in cash.

Management performed an analysis to determine the appropriate accounting treatment of the above transactions and concluded (1) a troubled debt restructuring had not occurred, and (2) as the total change in cash flows was greater than 10% of the carrying value of the debt, the transactions should be treated as a debt extinguishment for accounting purposes. A loss on extinguishment equal to the difference between the carrying value of the old debt and the reacquisition price was recognized in current period earnings.