Exhibit 99.1

United States Commodity Index Funds Trust

United States Commodity Index Fund

Monthly Account Statement

For the Month Ended March 31, 2025

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures	$	3,083,193
Unrealized Gain (Loss) on Market Value of Commodity Futures		7,064,921
Dividend Income		510,393
Interest Income		295,363
ETF Transaction Fees		1,400
Total Income (Loss)	$	10,955,270
Expenses
Management Fees	$	152,390
Professional Fees		14,608
Brokerage Commissions		18,703
Directors' Fees and insurance		3,042
Total Expenses	$	188,743
Net Income (Loss)	$	10,766,527

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 3/1/25	$	216,206,445
Additions (200,000 Shares)		14,097,876
Withdrawals (50,000 Shares)		(3,465,647	)
Net Income (Loss)		10,766,527
Net Asset Value End of Month	$	237,605,201
Net Asset Value Per Share (3,300,000 Shares)	$	72.00

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 March 31, 2025 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 March 31, 2025

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures	$	346,000
Unrealized Gain (Loss) on Market Value of Commodity Futures		17,222,000
Dividend Income		386,791
Interest Income		281,324
ETF Transaction Fees		2,800
Total Income (Loss)	$	18,238,915
Expenses
Management Fees	$	102,050
Professional Fees		11,322
Brokerage Commissions		851
Directors' Fees and insurance		2,506
Total Expenses	$	116,729
Net Income (Loss)	$	18,122,186

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 3/1/25	$	164,666,053
Additions (700,000 Shares)		21,671,611
Withdrawals (150,000 Shares)		(4,422,021	)
Net Income (Loss)		18,122,186
Net Asset Value End of Month	$	200,037,829
Net Asset Value Per Share (6,350,000 Shares)	$	31.50

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 March 31, 2025 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 March 31, 2025

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures	$	3,429,193
Unrealized Gain (Loss) on Market Value of Commodity Futures		24,286,921
Dividend Income		897,184
Interest Income		576,687
ETF Transaction Fees		4,200
Total Income (Loss)	$	29,194,185
Expenses
Management Fees	$	254,440
Professional Fees		25,930
Brokerage Commissions		19,554
Directors' Fees and insurance		5,548
Total Expenses	$	305,472
Net Income (Loss)	$	28,888,713

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 3/1/25	$	380,872,498
Additions (900,000 Shares)		35,769,487
Withdrawals (200,000 Shares)		(7,887,668	)
Net Income (Loss)		28,888,713
Net Asset Value End of Month		437,643,030

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 March 31, 2025 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