Exhibit 99.1

ANNEX A

The Trust Student Loan Pool as of July 31, 2023

The trust student loans owned by the trust were originally selected from a portfolio of consolidation student loans owned by Student Loan Marketing Association by employing several criteria, including requirements that each trust student loan as of the original cutoff date:

•

was guaranteed as to principal and interest by a guaranty agency under a guarantee agreement and the guaranty agency was, in turn, reinsured by the Department of Education in accordance with the FFELP;

•

contained terms in accordance with those required by the FFELP, the guarantee agreements and other applicable requirements;

•

was more than 120 days past the final disbursement;

•

was not more than 210 days past due;

•

did not have a borrower who was noted in the related records of the servicer as being currently involved in a bankruptcy proceeding; and

•

had special allowance payments, if any, based on the three-month commercial paper rate or the 91-day Treasury bill rate.

No trust student loan as of the original cutoff date was subject to the depositor’s or the Student Loan Marketing Association’s prior obligation to sell that loan to a third party. The Student Loan Marketing Association was dissolved on December 31, 2004 and all of its obligations were assumed by its affiliate, Navient Credit Finance Corporation.

Unless otherwise specified, all information with respect to the trust student loans is presented as of July 31, 2023, which is the statistical disclosure date.

The following tables provide a description of specified characteristics of the trust student loans as of the statistical disclosure date. The aggregate outstanding principal balance of the loans in each of the following tables includes the principal balance due from borrowers, plus accrued interest of $2,085,633 to be capitalized as of the statistical disclosure date. Percentages and dollar amounts in any table may not total 100% or whole dollars due to rounding. The following tables also contain information concerning the total number of loans and total number of borrowers in the portfolio of trust student loans. For ease of administration, the servicer separates a consolidation loan on its system into two separate loan segments representing subsidized and unsubsidized segments of the same loan. The following tables reflect those loan segments within the number of loans.

The distribution by weighted average interest rate applicable to the trust student loans on any date following the statistical disclosure date may vary significantly from that in the following tables as a result of variations in the effective rates of interest applicable to the trust student loans and in rates of principal reduction. Moreover, the information below about the weighted average remaining term to maturity of the trust student loans as of the statistical disclosure date may vary significantly from the actual term to maturity of any of the trust student loans as a result of prepayments or the granting of deferment and forbearance periods. See “Risk Factors—Forbearances Granted As a Result of the COVID-19 Pandemic May Delay Payments of Interest and Principal” in this remarketing memorandum.

The following tables also contain information concerning the total number of loans and the total number of borrowers in the portfolio of trust student loans.

A-1

Percentages and dollar amounts in any table may not total 100% of the trust student loan balance, as applicable, due to rounding.

COMPOSITION OF THE TRUST STUDENT LOANS AS OF

THE STATISTICAL DISCLOSURE DATE

Aggregate Outstanding Principal Balance	$	262,610,808
Aggregate Outstanding Principal Balance – Treasury Bill	$	38,793,711
Percentage of Aggregate Outstanding Principal Balance – Treasury Bill		14.77	%
Aggregate Outstanding Principal Balance – 30-day Average SOFR	$	223,817,097
Percentage of Aggregate Outstanding Principal Balance – 30-day Average SOFR		85.23	%
Number of Borrowers		6,616
Average Outstanding Principal Balance Per Borrower	$	39,693
Number of Loans		11,676
Average Outstanding Principal Balance Per Loan – Treasury Bill	$	44,952
Average Outstanding Principal Balance Per Loan – 30-day Average SOFR	$	20,699
Weighted Average Remaining Term to Scheduled Maturity	188 months
Weighted Average Annual Interest Rate		6.30	%

We determined the weighted average remaining term to maturity shown in the table from the statistical disclosure date to the stated maturity date of the applicable trust student loan without giving effect to any deferment or forbearance periods that may be granted in the future. See Appendix A to the preliminary remarketing memorandum.

The weighted average annual borrower interest rate shown in the table is exclusive of special allowance payments. The weighted average spread for special allowance payments to the 91-day Treasury bill rate was 3.10% as of the statistical disclosure date.

The weighted average spread for special allowance payments to the three-month commercial paper rate was 2.64% as of the statistical disclosure date. See “Special Allowance Payments” in Appendix A to the preliminary remarketing memorandum.

For this purpose, the three-month commercial paper rate is the average of the bond equivalent rates of the three-month commercial paper (financial) rates in effect for each of the days in a calendar quarter as reported by the Federal Reserve in Publication H.15 (or its successor) for that calendar quarter. The 91-day Treasury bill rate is the weighted average per annum discount rate, expressed on a bond equivalent basis and applied on a daily basis, for direct obligations of the United States with a maturity of thirteen weeks, as reported by the United States Department of the Treasury.

A-2

DISTRIBUTION OF THE TRUST STUDENT LOANS

BY BORROWER INTEREST RATES AS OF THE STATISTICAL

DISCLOSURE DATE

Interest Rates	Number of Loans		Aggregate Outstanding Principal Balance		Percent of Pool by Outstanding Principal Balance
Less than or equal to 3.00%		0	$	0		0.0	%
3.01% to 3.50%		212		2,375,365		0.9
3.51% to 4.00%		498		8,810,354		3.4
4.01% to 4.50%		2,099		28,098,571		10.7
4.51% to 5.00%		3,282		56,617,512		21.6
5.01% to 5.50%		658		13,138,167		5.0
5.51% to 6.00%		519		11,173,535		4.3
6.01% to 6.50%		835		17,828,480		6.8
6.51% to 7.00%		1,450		37,257,564		14.2
7.01% to 7.50%		329		9,340,685		3.6
7.51% to 8.00%		702		26,056,851		9.9
8.01% to 8.50%		831		34,886,239		13.3
Equal to or greater than 8.51%		261		17,027,485		6.5

Total		11,676	$	262,610,808		100.0	%

We determined the interest rates shown in the table above using the interest rates applicable to the trust student loans as of the statistical disclosure date. Because trust student loans with different interest rates are likely to be repaid at different rates, this information is not likely to remain applicable to the trust student loans after the statistical disclosure date. See Appendix A to the preliminary remarketing memorandum and “The Student Loan Pools–Sallie Mae’s Student Loan Financing Business” in the original prospectus.

DISTRIBUTION OF THE TRUST STUDENT LOANS BY

OUTSTANDING PRINCIPAL BALANCE PER BORROWER

AS OF THE STATISTICAL DISCLOSURE DATE

Range of Outstanding Principal Balance	Number of Borrowers		Aggregate Outstanding Principal Balance		Percent of Pool by Outstanding Principal Balance
Less than $5,000.00		948	$	2,390,876		0.9	%
$5,000.00-$ 9,999.99		821		6,158,178		2.3
$10,000.00-$14,999.99		682		8,475,680		3.2
$15,000.00-$19,999.99		610		10,596,253		4.0
$20,000.00-$24,999.99		490		10,953,070		4.2
$25,000.00-$29,999.99		404		11,085,337		4.2
$30,000.00-$34,999.99		385		12,457,122		4.7
$35,000.00-$39,999.99		290		10,857,172		4.1
$40,000.00-$44,999.99		243		10,299,921		3.9
$45,000.00-$49,999.99		203		9,625,738		3.7
$50,000.00-$54,999.99		204		10,699,251		4.1
$55,000.00-$59,999.99		122		7,000,791		2.7
$60,000.00-$64,999.99		112		6,980,640		2.7
$65,000.00-$69,999.99		103		6,949,742		2.6
$70,000.00-$74,999.99		93		6,732,578		2.6
$75,000.00-$79,999.99		75		5,803,284		2.2
$80,000.00-$84,999.99		80		6,590,929		2.5
$85,000.00-$89,999.99		66		5,778,484		2.2
$90,000.00-$94,999.99		45		4,185,477		1.6
$95,000.00-$99,999.99		55		5,363,383		2.0
$100,000.00 and above		585		103,626,900		39.5

Total		6,616	$	262,610,808		100.0	%

A-3

DISTRIBUTION OF THE TRUST STUDENT LOANS

BY DELINQUENCY STATUS AS OF THE

STATISTICAL DISCLOSURE DATE

Number of Days Delinquent	Number of Loans		Aggregate Outstanding Principal Balance		Percent of Pool by Outstanding Principal Balance
0-30 days		10,893	$	237,165,315		90.3	%
31-60 days		233		7,247,881		2.8
61-90 days		201		7,401,678		2.8
91-120 days		84		3,367,778		1.3
121-150 days		81		2,245,885		0.9
151-180 days		41		1,239,545		0.5
181-210 days		45		1,145,705		0.4
Greater than 210 days		98		2,797,022		1.1

Total		11,676	$	262,610,808		100.0	%

DISTRIBUTION OF THE TRUST STUDENT LOANS

BY REMAINING TERM TO SCHEDULED MATURITY

AS OF THE STATISTICAL DISCLOSURE DATE

Number of Months Remaining to Scheduled Maturity	Number of Loans		Aggregate Outstanding Principal Balance		Percent of Pool by Outstanding Principal Balance
0 to 3		65	$	27,276		*
4 to 12		341		341,912		0.1	%
13 to 24		511		1,312,247		0.5
25 to 36		518		2,478,585		0.9
37 to 48		532		3,010,983		1.1
49 to 60		1,401		7,962,212		2.9
61 to 72		638		6,267,280		2.3
73 to 84		602		7,015,817		2.6
85 to 96		519		6,942,259		2.6
97 to 108		507		7,841,141		2.9
109 to 120		1,448		21,719,438		8.0
121 to 132		834		17,991,100		6.6
133 to 144		695		17,872,321		6.6
145 to 156		489		14,954,269		5.5
157 to 168		460		14,545,416		5.4
169 to 180		416		15,082,691		5.6
181 to 192		339		13,105,136		4.8
193 to 204		284		11,614,007		4.3
205 to 216		211		9,406,564		3.5
217 to 228		154		7,207,990		2.7
229 to 240		139		7,757,607		2.9
241 to 252		119		5,780,371		2.1
253 to 264		106		7,466,512		2.7
265 to 276		75		4,553,014		1.7
277 to 288		72		4,585,077		1.7
289 to 300		169		13,428,533		4.9
301 to 312		370		30,540,301		11.2
313 to 324		14		1,375,056		0.5
325 to 336		16		1,547,715		0.6
337 to 348		9		1,506,988		0.6
349 to 360		25		3,639,785		1.3
361 and above		30		2,806,788		1.0

Total		12,108	$	271,686,390		100.0	%

*	Represents a percentage greater than 0% but less than 0.05%.

A-4

DISTRIBUTION OF THE TRUST STUDENT LOANS

BY REMAINING TERM TO SCHEDULED MATURITY

AS OF THE STATISTICAL DISCLOSURE DATE

Number of Months Remaining to Scheduled Maturity	Number of Loans		Aggregate Outstanding Principal Balance		Percent of Pool by Outstanding Principal Balance
0 to 3		108	$	45,016		*
4 to 12		281		268,779		0.1	%
13 to 24		489		1,334,139		0.5
25 to 36		484		2,302,121		0.9
37 to 48		605		3,334,334		1.3
49 to 60		1,281		7,229,433		2.8
61 to 72		627		6,293,201		2.4
73 to 84		557		6,419,886		2.4
85 to 96		494		6,766,264		2.6
97 to 108		559		8,606,063		3.3
109 to 120		1,382		20,898,863		8.0
121 to 132		797		17,330,370		6.6
133 to 144		625		16,240,119		6.2
145 to 156		494		15,431,736		5.9
157 to 168		407		12,378,661		4.7
169 to 180		414		15,199,671		5.8
181 to 192		317		12,383,460		4.7
193 to 204		268		11,055,823		4.2
205 to 216		187		8,168,146		3.1
217 to 228		149		7,340,431		2.8
229 to 240		153		8,228,940		3.1
241 to 252		117		6,131,215		2.3
253 to 264		88		4,960,100		1.9
265 to 276		77		4,334,557		1.7
277 to 288		74		5,096,902		1.9
289 to 300		159		12,289,809		4.7
301 to 312		387		31,478,288		12.0
313 to 324		17		1,976,012		0.8
325 to 336		13		1,035,540		0.4
337 to 348		11		1,489,992		0.6
349 to 360		21		3,362,247		1.3
361 and above		34		3,200,690		1.2

Total		11,676	$	262,610,808		100.0	%

*	Represents a percentage greater than 0% but less than 0.05%.

A-5

We have determined the number of months remaining to scheduled maturity shown in the table from the statistical disclosure date to the stated maturity date of the applicable trust student loan without giving effect to any deferment or forbearance periods that may be granted in the future. See Appendix A to the preliminary remarketing memorandum and “The Student Loan Pools –Sallie Mae’s Student Loan Financing Business” in the original prospectus.

DISTRIBUTION OF THE TRUST STUDENT LOANS

BY CURRENT BORROWER PAYMENT STATUS

AS OF THE STATISTICAL DISCLOSURE DATE

Current Borrower Payment Status	Number of Loans		Aggregate Outstanding Principal Balance		Percent of Pool by Outstanding Principal Balance
Deferment		229	$	7,855,799		3.0	%
Forbearance		782		29,368,206		11.2
Repayment
First year in repayment		67		5,536,369		2.1
Second year in repayment		47		4,006,949		1.5
Third year in repayment		58		3,111,790		1.2
More than 3 years in repayment		10,493		212,731,695		81.0

Total		11,676	$	262,610,808		100.0	%

(1) Of the trust student loans in forbearance status, approximately 16 loans with an aggregate outstanding principal balance of $475,630.00, representing 0.18% of the pool by principal, are in the Coronavirus Disaster Forbearance Program.

Current borrower payment status refers to the status of the borrower of each trust student loan as of the statistical disclosure date. The borrower:

•

may have temporarily ceased repaying the loan through a deferment or a forbearance period (this category includes the Coronavirus Disaster Forbearance Program); or

•

may be currently required to repay the loan – repayment.

See Appendix A to the preliminary remarketing memorandum and “The Student Loan Pools–Sallie Mae’s Student Loan Financing Business” in the original prospectus.

The weighted average number of months in repayment for all trust student loans currently in repayment is approximately 155.0 calculated as the term to maturity at the commencement of repayment less the number of months remaining to scheduled maturity as of the statistical disclosure date.

A-6

SCHEDULED WEIGHTED AVERAGE REMAINING MONTHS IN

STATUS OF THE TRUST STUDENT LOANS BY

CURRENT BORROWER PAYMENT STATUS AS OF THE

STATISTICAL DISCLOSURE DATE

	Scheduled Months in Status Remaining
Current Borrower Payment Status	Deferment	Forbearance	Repayment
Deferment	18.5	-	221.8
Forbearance	-	12.0	217.8
Repayment	-	-	180.2

We have determined the scheduled weighted average remaining months in status shown in the previous table without giving effect to any deferment or forbearance periods that may be granted in the future. Of the $7,855,799 aggregate outstanding principal balance of the trust student loans in deferment as of the statistical disclosure date, $5,652,151 or approximately 71.9% of such loans are to borrowers who had not graduated as of that date. We expect that a significant portion of these loans could qualify for additional deferments or forbearances at the end of their current deferment periods as the related borrowers continue their education beyond their current degree programs. As a result, the overall duration of any applicable deferment and forbearance periods as well as the likelihood of future deferment and forbearance periods within this pool of trust student loans is likely to be higher than in other pools of student loans without similar numbers of in-school consolidation loans. See Appendix A to the original prospectus.

A-7

GEOGRAPHIC DISTRIBUTION OF THE TRUST STUDENT LOANS

AS OF THE STATISTICAL DISCLOSURE DATE

State	Number of Loans		Aggregate Outstanding Principal Balance			Percent of Pool by Outstanding Principal Balance
Alabama		95	2,363,380		$	0.9	%
Alaska		13		246,805		0.1
Arizona		238		5,503,149		2.1
Arkansas		62		1,651,971		0.6
California		1,332		31,846,327		12.1
Colorado		178		3,123,046		1.2
Connecticut		181		3,957,000		1.5
Delaware		29		845,234		0.3
District of Columbia		35		621,034		0.2
Florida		866		23,087,606		8.8
Georgia		470		11,752,223		4.5
Hawaii		24		432,206		0.2
Idaho		44		1,167,379		0.4
Illinois		510		8,989,553		3.4
Indiana		143		2,115,892		0.8
Iowa		67		1,663,927		0.6
Kansas		173		3,526,864		1.3
Kentucky		53		1,158,210		0.4
Louisiana		360		8,240,423		3.1
Maine		47		1,265,275		0.5
Maryland		323		7,344,522		2.8
Massachusetts		346		5,095,510		1.9
Michigan		287		8,128,878		3.1
Minnesota		183		5,022,606		1.9
Mississippi		119		3,176,079		1.2
Missouri		272		6,166,085		2.3
Montana		20		504,801		0.2
Nebraska		21		511,969		0.2
Nevada		106		2,784,071		1.1
New Hampshire		50		1,051,125		0.4
New Jersey		313		7,067,104		2.7
New Mexico		43		1,251,052		0.5
New York		751		17,430,479		6.6
North Carolina		307		6,040,682		2.3
North Dakota		4		7,849		*
Ohio		42		1,248,325		0.5
Oklahoma		264		6,163,860		2.3
Oregon		197		4,551,990		1.7
Pennsylvania		387		7,683,037		2.9
Rhode Island		36		519,233		0.2
South Carolina		151		3,545,330		1.4
South Dakota		12		126,445		*
Tennessee		221		5,307,223		2.0
Texas		1,259		26,186,673		10.0
Utah		34		770,213		0.3
Vermont		20		526,409		0.2
Virginia		340		6,287,609		2.4
Washington		333		6,501,589		2.5
West Virginia		38		797,457		0.3
Wisconsin		141		4,360,874		1.7
Wyoming		12		110,923		*
Other		124		2,783,305		1.1

Total		11,676	$	262,610,808		100.0	%

*	Represents a percentage greater than 0% but less than 0.05%.

A-8

We have based the geographic distribution shown in the table on the billing addresses of the borrowers of the trust student loans shown on the servicer’s records as of the statistical disclosure date.

Each of the trust student loans provides or will provide for the amortization of its outstanding principal balance over a series of regular payments. Except as described below, each regular payment consists of an installment of interest which is calculated on the basis of the outstanding principal balance of the trust student loan. The amount received is applied first to interest accrued to the date of payment and the balance of the payment, if any, is applied to reduce the unpaid principal balance. Accordingly, if a borrower pays a regular installment before its scheduled due date, the portion of the payment allocable to interest for the period since the preceding payment was made will be less than it would have been had the payment been made as scheduled, and the portion of the payment applied to reduce the unpaid principal balance will be correspondingly greater. Conversely, if a borrower pays a monthly installment after its scheduled due date, the portion of the payment allocable to interest for the period since the preceding payment was made will be greater than it would have been had the payment been made as scheduled, and the portion of the payment applied to reduce the unpaid principal balance will be correspondingly less.

In either case, subject to any applicable deferment periods or forbearance periods, and except as provided below, the borrower pays a regular installment until the final scheduled payment date, at which time the amount of the final installment is increased or decreased as necessary to repay the then outstanding principal balance of that trust student loan.

The servicer makes available to borrowers of student loans it holds (including the trust student loans) payment terms that may result in the lengthening of the remaining term of the student loans. For example, not all of the loans sold to the trust provide for level payments throughout the repayment term of the loans. Some student loans provide for interest only payments to be made for a designated portion of the term of the loans, with amortization of the principal of the loans occurring only when payments increase in the latter stage of the term of the loans. Other loans provide for a graduated phase in of the amortization of principal with a greater portion of principal amortization being required in the latter stages than would be the case if amortization were on a level payment basis. The servicer also offers an income-sensitive repayment plan, under which repayments are based on the borrower’s income. Under that plan, ultimate repayment may be delayed up to five years. Borrowers under trust student loans will continue to be eligible for the graduated payment and income-sensitive repayment plans. These programs are applicable to the trust student loans and may be offered by the servicer to related borrowers at its discretion.

The following table provides certain information about trust student loans subject to the repayment terms described in the preceding paragraphs.

DISTRIBUTION OF THE TRUST STUDENT LOANS BY REPAYMENT

TERMS AS OF THE STATISTICAL DISCLOSURE DATE

Loan Repayment Terms	Number of Loans		Aggregate Outstanding Principal Balance		Percent of Pool by Outstanding Principal Balance
Level Repayment		5,477	$	93,433,015		35.6	%
Other Repayment Options⁽¹⁾		4,341		89,832,166		34.2
Income-driven Repayment⁽²⁾		1,858		79,345,628		30.2
Total		11,676	$	262,610,808		100.0	%

(1) Includes, among others, graduated repayment and interest-only period loans.

(2) Includes income sensitive and income based repayment.

With respect to interest-only loans, as of the statistical disclosure date, there are 108 loans with an aggregate outstanding principal balance of $6,109,598 currently in an interest-only period. These interest-only loans represent approximately 2.3% of the aggregate outstanding principal balance of the trust student loans. Interest-only periods range up to 48 months in overall length.

The servicer may in the future offer repayment terms similar to those described above to borrowers of trust student loans who are not entitled to these repayment terms as of the statistical disclosure date. If repayment terms are offered to and accepted by those borrowers, the weighted average life of the securities could be lengthened.

DISTRIBUTION OF THE TRUST STUDENT LOANS BY LOAN

TYPE AS OF THE STATISTICAL DISCLOSURE DATE

Loan Type	Number of Loans		Aggregate Outstanding Principal Balance		Percent of Pool by Outstanding Principal Balance
Subsidized		5,801	$	111,442,400		42.4	%
Unsubsidized		5,875		151,168,409		57.6

Total		11,676	$	262,610,808		100.0	%

The following table provides information about the trust student loans regarding date of disbursement.

DISTRIBUTION OF THE TRUST STUDENT LOANS

BY DATE OF DISBURSEMENT AS OF

THE STATISTICAL DISCLOSURE DATE

Disbursement Date	Number of Loans		Aggregate Outstanding Principal Balance		Percent of Pool by Outstanding Principal Balance
September 30, 1993 and earlier		19	$	804,333		0.3	%
October 1, 1993 through June 30, 2006		11,657		261,850,475		99.7
July 1, 2006 and later		0		0		0.0

Total		11,676	$	262,610,808		100.0	%

Guaranty Agencies for the Trust Student Loans. The eligible lender trustee has entered into a separate guarantee agreement with each of the guaranty agencies listed below, under which each of the guarantors has agreed to serve as guarantor for specified trust student loans.

The following table provides information with respect to the portion of the trust student loans guaranteed by each guarantor.

DISTRIBUTION OF THE TRUST STUDENT LOANS

BY GUARANTY AGENCY AS OF

THE STATISTICAL DISCLOSURE DATE

Name of Guaranty Agency	Number of Loans		Aggregate Outstanding Principal Balance		Percent of Pool by Outstanding Principal Balance
American Student Assistance		552	$	8,314,607		3.2	%
College Assist		2		107,359		*
Educational Credit Management Corporation		951		19,717,299		7.5
Great Lakes Higher Education Corporation		6,265		154,222,041		58.7
Kentucky Higher Educ. Asst. Auth.		312		4,893,902		1.9
Michigan Guaranty Agency		183		4,121,137		1.6
New York State Higher Ed Services Corp		1		-237		*
Oklahoma Guaranteed Stud Loan Prog		263		4,798,133		1.8
Pennsylvania Higher Education Assistance Agency		987		20,536,763		7.8
Texas Guaranteed Student Loan Corp		2,160		45,899,803		17.5
Total		11,676	$	262,610,808		100.0	%

*	Represents a percentage greater than 0% but less than 0.05%.

SLM Student Loan Trust 2003-4 8-K