Exhibit 99.1

United States Commodity Index Funds Trust

United States Commodity Index Fund

Monthly Account Statement

For the Month Ended July 31, 2023

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures	$	8,233,375
Unrealized Gain (Loss) on Market Value of Commodity Futures		6,674,366
Dividend Income		433,606
Interest Income		318,748
ETF Transaction Fees		350
Total Income (Loss)	$	15,660,445
Expenses
Management Fees	$	117,856
Professional Fees		28,646
Brokerage Commissions		17,188
Directors' Fees and insurance		5,851
Total Expenses	$	169,541
Net Income (Loss)	$	15,490,904

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 7/1/23	$	166,298,582
Withdrawals (50,000 Shares)		(2,935,155	)
Net Income (Loss)		15,490,904
Net Asset Value End of Month	$	178,854,331
Net Asset Value Per Share (3,050,000 Shares)	$	58.64

To the Shareholders of United States Commodity Index Fund:

Pursuant to Rule 4.22(h) under the Commodity Exchange Act, the undersigned represents that, to the best of his knowledge and belief, the information contained in the Account Statement for the month ended July 31, 2023 is accurate and complete.

/s/ Stuart P. Crumbaugh

Stuart P. Crumbaugh

Chief Financial Officer

United States Commodity Funds LLC, Sponsor of United States Commodity Index Fund

United States Commodity Funds LLC

1850 Mt. Diablo Boulevard, Suite 640

Walnut Creek, CA 94596

United States Commodity Index Funds Trust

United States Copper Index Fund

Monthly Account Statement

For the Month Ended July 31, 2023

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures	$	(78,088	)
Unrealized Gain (Loss) on Market Value of Commodity Futures		8,927,363
Dividend Income		314,753
Interest Income		269,389
ETF Transaction Fees		1,050
Total Income (Loss)	$	9,434,467
Expenses
Management Fees	$	74,760
Professional Fees		38,290
Brokerage Commissions		283
Directors' Fees and insurance		7,306
Total Expenses	$	120,639
Net Income (Loss)	$	9,313,828

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 7/1/23	$	130,837,434
Additions (250,000 Shares)		5,960,883
Withdrawals (50,000 Shares)		(1,161,467	)
Net Income (Loss)		9,313,828
Net Asset Value End of Month	$	144,950,678
Net Asset Value Per Share (5,850,000 Shares)	$	24.78

To the Shareholders of United States Copper Index Fund:

Pursuant to Rule 4.22(h) under the Commodity Exchange Act, the undersigned represents that, to the best of his knowledge and belief, the information contained in the Account Statement for the month ended July 31, 2023 is accurate and complete.

/s/ Stuart P. Crumbaugh

Stuart P. Crumbaugh

Chief Financial Officer

United States Commodity Funds LLC, Sponsor of United States Copper Index Fund

United States Commodity Funds LLC

1850 Mt. Diablo Boulevard, Suite 640

Walnut Creek, CA 94596

United States Commodity Index Funds Trust

Monthly Account Statement

For the Month Ended July 31, 2023

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures	$	8,155,287
Unrealized Gain (Loss) on Market Value of Commodity Futures		15,601,729
Dividend Income		748,359
Interest Income		588,137
ETF Transaction Fees		1,400
Total Income (Loss)	$	25,094,912
Expenses
Management Fees	$	192,616
Professional Fees		66,936
Brokerage Commissions		17,471
Directors' Fees and insurance		13,157
Total Expenses	$	290,180
Net Income (Loss)	$	24,804,732

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 7/1/23	$	297,136,016
Additions (250,000 Shares)		5,960,883
Withdrawals (100,000 Shares)		(4,096,622	)
Net Income (Loss)		24,804,732
Net Asset Value End of Month	$	323,805,009

To the Shareholders of the Series of the United States Commodity Index Funds Trust:

Pursuant to Rule 4.22(h) under the Commodity Exchange Act, the undersigned represents that, to the best of his knowledge and belief, the information contained in the Account Statement for the month ended July 31, 2023 is accurate and complete.

/s/ Stuart P. Crumbaugh

Stuart P. Crumbaugh

Chief Financial Officer

United States Commodity Funds LLC, Sponsor of United States Commodity Index Funds Trust

United States Commodity Funds LLC

1850 Mt. Diablo Boulevard, Suite 640

Walnut Creek, CA 94596