The Company entered into a promissory note agreement during 2020 with its largest equity members, Atlas Capital Resources LP and Atlas Capital Resources (P) LP (collectively referred to herein as “Atlas”). Within the agreement, there were two separate loans. One of these related party loans had a June 2021 maturity and a balance of $2.4 million at December 31, 2020, and the other loan had a May 2021 maturity with a balance of $1.2 million at December 31, 2020. The promissory notes bore interest at 8% per annum calculated on a 360-day year, and interest accrued and compounded on a quarterly basis. All accrued but unpaid interest under the notes was due and payable upon the corresponding note maturity date. Under this promissory note agreement, the Company incurred an immaterial amount of interest expense during the nine months ended September 30, 2021. During the nine months ended September 30, 2020, the Company incurred interest expense of $0.5 million associated with the loans that were converted into senior priority units in July 2020.

Notes payable to related party consisted of the following:


$ in thousands	September 30, 2021		December 31, 2020
Note payable to a related party due June 2021	$	-	$	2,382
Note payable to a related party due May 2021		-		1,191
	$	-	$	3,573
Less: Current Portion	$	-	$	(3,573	)
	$	-	$	-

The related party loans in the table above were converted into Greenidge common stock in January 2021 (see Note 9).

On March 19, 2021, the Company and Atlas and its affiliates entered into an arrangement pursuant to which Greenidge agreed, upon request, to direct its bank to issue new letters of credit to replace all or a portion of the letters of credit provided by Atlas and certain of its affiliates, upon the consummation of a potential investment in, financing of, or sale of any assets or equity or debt securities of the Company, which results in net proceeds to the Company of at least $10 million.

Atlas obtained a letter of credit from a financial institution in the amount of $5.0 million at September 30, 2021, payable to the NYSDEC. This letter of credit guarantees the current value of the Company’s environmental trust liability as discussed in Note 2.

Atlas also obtained a letter of credit from a financial institution in the amount of $3.6 million at September 30, 2021, payable to Empire Pipeline Incorporated (“Empire”) in the event the Company should not make contracted payments for costs related to a pipeline interconnection project the Company has entered into with Empire (see Note 13).

An affiliate of Atlas has guaranteed the payment obligation of Greenidge in favor of Emera Energy Services, Inc. under an Energy Management Agreement and an ISDA Master Agreement under which Greenidge may enter into various transactions involving the purchase and sale of gas, electricity and other commodities with Emera Energy Services, Inc. This guaranty is limited to $1.0 million. Atlas had no exposure under the guarantee during the period ended September 30, 2021.

On October 2, 2019, Blocker, a related entity through common ownership, purchased 15,000 preferred units of GC for $15 thousand.

On July 1, 2020, Atlas purchased the preferred units of Blocker for $16.3 million, the amount of the aggregate liquidation preference, and contributed its membership interest in Blocker to GGH in exchange for Senior Priority Units – Tranche 2 (See Note 9) on July 2, 2020.

On December 31, 2020, Blocker entered into a liquidating distribution agreement with GGH, effectively dissolving Blocker into GGH.