United States Securities and Exchange Commission

Washington, DC 20549

FORM 11-K

(Mark One)

þ ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2007

OR

o TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission file number 001-00815

Thrift and Savings Plan For Employees of Sentinel Transportation, LLC

(Full title of plan)

E. I. du Pont de Nemours and Company
1007 Market Street
Wilmington, Delaware 19898
(Name and address of principal executive office of issuer)

SIGNATURES

Pursuant to the requirements of the Securities and Exchange Act of 1934, Sentinel Transportation, LLC has duly caused this Annual Report to be signed on its behalf by the undersigned hereunto duly authorized.

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC

Dated: June 27, 2008

/S/ Marilyn Shaw

Marilyn Shaw

Human Resources Manager

THRIFT AND SAVINGS PLAN FOR EMPLOYEES OF
SENTINEL TRANSPORTATION, LLC
Index to Financial Statements and Supplemental Schedule

	Page(s)
Report of Independent Registered Public Accounting Firm		1
Financial Statements
Statements of Net Assets Available for Benefits as of December 31, 2007 and 2006		2
Statements of Changes in Net Assets Available for Benefits, for the Years Ended December 31, 2007 and 2006		3
Notes to Financial Statements		4 – 13
Supplemental Schedule*
Schedule of Assets (Held at End of Year)		14

* Other supplemental schedules required by Section 2520.103-10 of the Department of Labor Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974 have been omitted because they are not applicable.

Report of Independent Registered Public Accounting Firm

To the Participants and Administrator of
Thrift and Savings Plan for Employees of Sentinel Transportation, LLC

In our opinion, the accompanying statements of net assets available for benefits and the related statements of changes in net assets available for benefits present fairly, in all material respects, the net assets available for benefits of Thrift and Savings Plan for Employees of Sentinel Transportation, LLC (the “Plan”) at December 31, 2007 and 2006, and the changes in net assets available for benefits for the years then ended in conformity with accounting principles generally accepted in the United States of America. These financial statements are the responsibility of the Plan’s management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

Our audits were conducted for the purpose of forming an opinion on the basic financial statements taken as a whole. The supplemental Schedule of Assets (Held at End of Year) is presented for the purpose of additional analysis and is not a required part of the basic financial statements but is supplementary information required by the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. This supplemental schedule is the responsibility of the Plan’s management. The supplemental schedule has been subjected to the auditing procedures applied in the audits of the basic financial statements and, in our opinion, are fairly stated in all material respects in relation to the basic financial statements taken as a whole.

/S/ PRICEWATERHOUSECOOPERS LLP

Philadelphia, Pennsylvania
June 27, 2008

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC
Statements of Net Assets Available for Benefits
December 31, 2007 and 2006

	2007			2006
Assets
Investments, at fair value:
Plan interest in DuPont and Related Companies Defined Contribution Plan Master Trust	$	19,138,195		$	16,462,359
Company Stock Funds		3,976,864			4,550,003
Mutual funds		8,520,214			7,008,336
Common/collective trust funds		1,659,458			1,593,247
Participant loans		1,318,059			1,130,243
Total investments		34,612,790			30,744,188
Receivables:
Employer’s contribution		1,234,470			1,024,010
Investment income		12,557			11,267
Total receivables		1,247,027			1,035,277
Cash:		51,329			27,996
Net assets available for benefits, at fair value		35,911,146			31,807,461
Adjustments from fair value to contract value for interest in Master Trust relating to fully benefit-responsive investment contracts		(370,930	)		(145,311	)
Net assets available for benefits	$	35,540,216		$	31,662,150

The accompanying notes are an integral part of these financial statements.

2

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC
Statements of Changes in Net Assets Available for Benefits
For the Years Ended December 31, 2007 and 2006

	2007			2006
Additions:
Investment income:
Interest	$	98,858		$	69,741
Dividends		852,763			704,679
Net (depreciation) appreciation in fair value of investments		(357,248	)		1,044,894
Total investment income		594,373			1,819,314
Plan interest in DuPont and Related Companies Defined Contribution Plan Master Trust investment income		940,301			851,547
Contributions:
Employer’s contributions		2,853,501			2,575,460
Participant’s contributions		2,287,215			2,136,498
Rollovers		1,081,904			96,949
Total contributions		6,222,620			4,808,907
Total additions		7,757,294			7,479,768
Deductions:
Benefits paid to participants		3,878,488			4,466,944
Administrative expenses (net)		740			467
Total deductions		3,879,228			4,467,411
Net increase		3,878,066			3,012,357
Net assets available for benefits:
Beginning of year		31,662,150			28,649,793
End of year	$	35,540,216		$	31,662,150

The accompanying notes are an integral part of these financial statements.

3

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC
Notes to Financial Statements

NOTE 1 — DESCRIPTION OF THE PLAN

The following description of the Thrift and Savings Plan for Employees of Sentinel Transportation, LLC (the “Plan”) provides only general information. Participants should refer to the Plan agreement for a more complete description of the Plan’s provisions.

General

Sentinel Transportation Company (the “Company” or “Sentinel”) became a wholly owned subsidiary of E. I. du Pont de Nemours and Company (“DuPont”) in December 1995. Prior to its incorporation, the Company was part of Conoco, Inc.’s (“Conoco”) downstream operation. As part of Conoco, eligible employees of such operation participated in the Thrift and Savings Plan for the Employees of Conoco.

With the incorporation of the Company, Conoco employees dedicated to such operations were transferred to and became Sentinel employees. Sentinel’s Board of Directors adopted, effective January 1, 1996, the Thrift and Savings Plan for Employees of Sentinel Transportation Company to provide the continued participation of such former Conoco employees and the participation of new employees in a tax qualified plan.

Effective January 1, 2000, the Company merged into a joint venture operating as a limited liability company (LLC) under the name Sentinel Transportation, LLC whose members are DuPont (80%) and Conoco (20%).

The Plan is a defined contribution plan, which was established in 1996 by the Company. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974 (“ERISA”) and the Internal Revenue Code (the “Code”).

The purpose of the Plan is to encourage and assist employees to systematically save a portion of their current compensation and to assist them to accumulate additional financial means for the time of their retirement. The Plan is a tax-qualified, contributory profit sharing plan. Employees of affiliated companies that have adopted the Plan, who have previously met the eligibility requirements of the Plan, are eligible to participate in the Plan. Regular full-time employees are eligible to participate in the Plan on the first day of the calendar month following their date of hire as an employee.

Contributions

Eligible employees may participate in the Plan by authorizing the Company to make a payroll contribution under the Plan ranging from 1 percent to 100 percent of monthly compensation. The amount contributed will be deposited into a before-tax account. Participants’ monthly contributions up to 6 percent are called basic deposits. The Company will contribute an amount equal to 100 percent of the participant’s monthly basic deposits. All of the above participants’ and Company contributions are subject to regulatory and Plan limitations.

The Plan provides for discretionary profit sharing contributions to participants hired on or after January 1, 2004. Discretionary profit sharing contributions for the years ended December 31, 2007 and 2006 were $1,234,470 and $1,024,010 respectively. The Profit Sharing contributions are allocated based on the ratio that the participant’s compensation bears to the total compensation of all eligible participants.

4

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC
Notes to Financial Statements

Participants direct the investment of their contribution into various investment options offered by the Plan. The Plan currently offers twenty-one mutual funds, four common/collective trust funds, one Company Stock Fund, and a stable value fund.

Participant Accounts

Each participant’s account is credited with the participant’s contribution and allocations of (a) the Company’s contributions and (b) Plan earnings, and charged with an allocation of administrative expenses. Allocations are based on the ratio of the balance of that participant’s investment option account to the sum of the balances of all participants’ investment option accounts. The benefit to which a participant is entitled is the benefit that can be provided from the participant’s vested account.

Vesting

Participants have a fully and immediately vested interest in the portion of their accounts contributed by them. Effective January 1, 2004, any participant who completes an hour of service on or after that date will be immediately vested in their Company’s contributions. Participants who have not worked an hour of service on or after January 1, 2004 vest in their Company Match after three years of service. Profit Sharing contributions become fully vested after three years of service.

Payment of Benefits

Company contributions will be suspended for six months if a participant withdraws, while in-service, any matched before-tax or after-tax savings contributed or company contributions made to the account. Profit sharing contributions and matching contributions contributed on or after January 1, 2004, may be withdrawn only at separation from service or after attaining age 59 1/2.

A participant who terminates from active service may elect to make an account withdrawal of all or a portion of their account at any time. A participant who retires from active service may withdraw all or a portion of their account in lump sum, partial or installment payments. Required minimum distributions will begin in April of the calendar year following the later of the year in which the participant attains age 70-1/2 or the year following retirement or termination of employment.

Forfeited Accounts

Forfeitures will be used, as defined by the Plan, to pay administrative expenses and may reduce the amount of future Employer contributions. No forfeitures were used to offset Company contributions during the years ended December 31, 2007 and 2006. At December 31, 2007 and 2006, forfeited non-vested accounts totaled $43,612 and $72,599, respectively.

Participant Loans

Participants may borrow up to one-half of their non-forfeitable account balances subject to a minimum of $1,000 up to a maximum equal to the lesser of $50,000 or 50 percent of their vested account balance. The loans are executed by promissory notes and have a minimum term of 1 year and a maximum term of 5 years, except for qualified residential loans, which have a maximum term of 10 years. The loans bear an interest rate equal to the average rate charged by selected major banks to prime customers for secured loans. The loans are repaid over the term in installments of principal and interest by deduction from pay or pension checks. A participant also has the right to repay the loan in full at any time without penalty. At December 31, 2007, the loan interest rates ranged from 4 percent to 9.25 percent.

5

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC
Notes to Financial Statements

Administration

The designated trustee of the Plan is Merrill Lynch Trust Company of America (Merrill Lynch). The administration of the Plan is vested in the Company, which may designate three or more persons to serve on the Employee Benefit Plans Board to operate and administer the Plan.

Reasonable expenses of administering the Plan, including, but not limited to, record-keeping expenses, trustee fees and transactional costs may, at the election of the Plan Administrator, be paid by the Plan. Expenses paid by the Plan for the years ended December 31, 2007 and 2006 were $740 and $467, respectively. Brokerage fees, transfer taxes, investment fees and other expenses incidental to the purchase and sale of securities and investments shall be included in the cost of such securities or investments, or deducted from the sales proceeds, as the case may be.

NOTE 2 — SIGNIFICANT ACCOUNTING POLICIES

Basis of Accounting

The financial statements have been prepared on the accrual basis of accounting.

As described in Financial Accounting Standards Board Staff Position, FSP AAG INV-1, Reporting of Fully Benefit-Responsive Investment Contracts Held by Certain Investment Companies subject to the AICPA Investment Company Audit Guide and Defined Contribution Health and Welfare and Pension Plans (the “FSP”), investment contracts held by a defined contribution plan are required to be reported at fair value. This applies even when the contracts are not held directly by the Plan but are underlying assets in the Master trust investments held by the Plan. However, contract value is the relevant measurement of net assets available for benefits in a defined contribution plan that holds fully benefit-responsive investment contracts because contract value is the amount participants would receive if they were to initiate permitted transactions under the terms of the Plan. As required by the FSP, the Statement of Net Assets Available for Benefits presents the fair value of the fully benefit-responsive investment contracts held by the master trust with an adjustment to contract value. The Statement of Changes in Net Assets Available for Benefits is prepared on a contract value basis.

Investment Valuation and Income Recognition

The Plan’s investments are stated at fair value. Shares of registered investment companies (“mutual funds”) are valued at the net asset value of shares held by the Plan at year-end. Assets held in common collective trusts (“CCT’s”) are valued at net unit value as determined by the trustee at year-end. The Company stock funds are valued at year-end unit closing price (defined as the year-end market price of common stock plus uninvested cash position). Participant loans are valued at their outstanding balances, which approximate fair value.

For purposes of the Statement of Net Assets Available for Benefits, the Plan’s interest in the DuPont and Related Companies Defined Contribution Plan Master Trust (“master trust”) related to fully benefit-responsive investment contracts are stated at fair value with an adjustment back to contract value. Contract value represents contributions made, plus earnings, less participant withdrawals and administrative expenses. As provided in the FSP, an investment contract is generally required to be reported at fair value, rather than contract value, to the extent it is fully benefit-responsive. The fair value of the guaranteed investment contracts (“GIC’s”) is calculated by discounting the related cash flows based on current yields of similar instruments with comparable durations. The fair value of a synthetic GIC is determined using the market price of the underlying securities and the value of the investment contract (“wrapper”).

6

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC
Notes to Financial Statements

Purchases and sales of investments are recorded on a trade-date basis. Interest income is recorded on the accrued basis. Dividend income is recorded on the ex-dividend date. Capital gain distributions are included in dividend income.

Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates that affect the financial statements and accompanying notes. Actual results could differ from those estimates.

Payment of Benefits

Benefits are recorded when paid.

Accounting Standards Issued Not Yet Adopted

In September 2006, the Financial Accounting Standards Board (FASB) issued Statement of Financial Accounting Standards (SFAS) No. 157, “Fair Value Measurements,” (SFAS 157) which addresses how companies should measure fair value when required for recognition or disclosure purposes under GAAP. The standard’s provisions will be applied to existing accounting measurements and related disclosures that are based on fair value. SFAS 157 does not require any new fair value measurements. The standard applies a common definition of fair value to be used throughout GAAP, with emphasis on fair value as a “market-based” measurement versus an entity-specific measurement and establishes a hierarchy of fair value measurement methods. The disclosure requirements are expanded to include the extent to which companies use fair value measurements, the methods and assumptions used to measure fair value and the effect of fair value measurements on earnings. SFAS 157 is effective for fiscal years beginning after November 15, 2007. The new standard’s provisions applicable to the Plan will be applied to the Plan’s financial statements prospectively for the period beginning January 1, 2008. The Plan administrator expects that the adoption of SFAS 157 will not have a material effect on the Plan’s net assets available for benefits or changes in net assets available for benefits.

NOTE 3 — INTEREST IN MASTER TRUST

The Company and certain affiliates (“employers”) have entered into a Master Trust Agreement with Merrill Lynch (“Trustee”) to establish the DuPont and Related Companies Defined Contribution Plan Master Trust to allow participants from affiliated plans to invest in a Stable Value Fund and three different Asset Allocation Funds: the Conservative, Moderate, and Aggressive Asset Allocation Funds. To participate in the Master Trust, affiliates who sponsor qualified savings plans and who have adopted the Master Trust Agreement are required to make payments to the Trustee of designated portions of employees’ savings and other contributions by the affiliate. Investment income relating to the Master Trust is allocated proportionately by investment fund to the plans within the Master Trust based on the Plan’s interest to the total fair value of the Master Trust investment funds. The Plan’s undivided interest in the Master Trust was .33% and .29% as of December 31, 2007 and 2006, respectively.

The Stable Value Fund is invested in a money market fund, traditional GIC’s separate account GIC’s, and synthetic GIC’s, which are backed by fixed income assets. The crediting interest rates on investment contracts ranged from 4.40% to 6.19% for the year ended December 31, 2007 and from 4.40% to 6.52% for the year ended December 31, 2006. The weighted average credited interest rate of return of the Stable Value Fund based on the interest rate credited to participants was 5.49% for the year ended December 31, 2007 and 5.61% for the year ended December 31, 2006. The weighted average yield of the Stable Value

7

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC
Notes to Financial Statements

Fund based on the actual earnings of underlying assets in the Stable Value Fund was 5.04% for the year ended December 31, 2007 and 5.55% for the year ended December 31, 2006.

For traditional GIC’s the insurer maintains the assets in a general account. The account is credited with earnings on the underlying investments and charged for participant withdrawals and administrative expenses. Separate and synthetic GIC’s, backed by underlying assets, provide for a guaranteed return on principal and accrued interest over a specified period of time (i.e., period of time before the crediting rate reset) through benefit-responsive wrapper contracts issued by a third party assuming that the underlying assets meet the requirements of the GIC.

The contract or crediting rates for certain stable value investment contracts are reset six times per year and are based on the performance of the portfolio of assets underlying these contracts. Inputs used to determine the crediting rate include each contract’s portfolio market value of fixed income assets, current yield-to maturity, duration (similar to weighted average life) and market value relative to contract value. All contracts have a guaranteed rate of at least 0% or higher with respect to determining interest rate resets. There are no reserves against contract value for credit risk of the contract issuer or otherwise.

Participants may ordinarily direct the withdrawal or transfer of all or a portion of their investment at contract value for plan permitted benefit payments. Certain events may limit the ability of the Plan to transact at contract value with the issuer. Such events include the following: (i) amendments to the Plan documents (including complete or partial Plan termination or merger with another plan) (ii) changes to Plan’s prohibition on competing investment options or deletion of equity wash provisions; (iii) bankruptcy of the Plan sponsor or other Plan sponsor events (e.g. divestitures or spin-offs of a subsidiary) which cause a significant withdrawal from the Plan or (iv) the failure of the trust to qualify for exemption from federal income taxes or any required prohibited transaction exemption under ERISA. The Plan Administrator does not believe that the occurrence of any such value event, which would limit the Plan’s ability to transact at contract value with participants, is probable.

Based on certain events specified in fully benefit-responsive investment contracts (i.e., GICs, separate account GICs and synthetic GICs), both the Plan/Trust and issuers of such investment contracts are permitted to terminate the investment contracts. If applicable, such terminations can occur prior to the scheduled maturity date.

Examples of termination events that permit issuers to terminate investment contracts include the following:

1.	The Plan Sponsor’s receipt of a final determination notice from the Internal Revenue Service that the Plan does not qualify under Section 401(a) of the Code.
2.	The Trust ceases to be exempt from federal income taxation under Section 501(a) of the Code.
3.	The Plan/Trust or its representative breaches material obligations under the investment contract such as a failure to satisfy its fee payment obligations.
4.	The Plan/Trust or its representative makes a material misrepresentation.
5.	The Plan/Trust makes a material amendment to the Plan/Trust and/or the amendment adversely impacts the issuer.
6.	The Plan/Trust, without the issuer’s consent, attempts to assign its interest in the investment contract.
7.	The balance of the contract value is zero or immaterial.

8

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC
Notes to Financial Statements

8.	Mutual consent
9.	The termination event is not cured within a reasonable time period, e.g., 30 days.

For synthetic GICs, additional termination events include the following:

1.	The investment manager of the underlying securities is replaced without the prior written consent by the issuer.
2.	The underlying securities are managed in a way that does not comply with the investment guidelines.

At termination, the contract value is adjusted to reflect a discounted value based on surrender charges or other penalties for GICs and maturing separate account GICs.

For synthetic GICs, termination is at market value of the underlying securities less unpaid issuer fees or charges. If the termination event is not material based on industry standards, it may be possible for the Plan/Trust to exercise its right to require the issuer that initiated the termination to extend the investment contract for a period no greater than what it takes to immunize the underlying securities and/or it may be possible to replace the issuer of a synthetic GIC that terminates the contract with another synthetic GIC issuer. Both options help maintain the stable contract value.

The following table presents the values of investments of the Master Trust:

	December 31,
	2007			2006
Investment contracts, at fair value	$	5,006,302,387		$	5,495,428,591
Mutual Funds		646,569,704			166,975,620
Common/collective trust funds		73,909,014			65,916,857
Total assets, at fair value	$	5,726,781,105		$	5,728,321,068
Adjustment from fair value to contract value for interest in Master trust relating to fully benefit-responsive investment contracts		(98,948,275	)		(50,107,231	)
Total assets, at contract value	$	5,627,832,830		$	5,678,213,837

9

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC
Notes to Financial Statements

Investments (at contract value) of the Master Trust that represent 5 percent or more of the assets of the Master Trust were as follows:

	December 31,
	2007		2006
Investment contracts
Monumental Life Insurance Co (MDA 00665TR-B)	$	604,419,150	$	686,028,585
ING Life Insurance & Annuity Co. (14522-440-01)		604,419,150		686,028,585
AIG Life Insurance Company (583407)		604,419,150		686,028,585
JPMorgan Chase Bank (DuPontTP02)		604,419,150		686,028,585
State Street Bank & Trust (102001)		604,419,150		686,028,585
Mutual Funds
ML Premier Institutional Fund		646,569,704		166,975,620	*

* Investment represents less than 5 percent of the assets of the Master Trust as of December 31, 2006

For the years ended December 31, 2007 and December 31, 2006 the Master Trust’s total investment income was as follows:

	December 31,
	2007		2006
Interest on Investment contracts	$	296,749,774	$	302,728,038
Net appreciation in fair value of Common/collective trust funds		5,560,259		11,832,325
Total	$	302,310,033	$	314,560,363

At December 31, 2007, the total assets of the Master Trust of $5,627,832,830 included participant investments in the Stable Value Fund of $5,488,871,166 and $138,961,665 in the Conservative, Moderate, and Aggressive Allocation Funds. At December 31, 2006, the total Master Trust value of $5,678,213,837 included participant investments in the Stable Value Fund of $5,560,577,973 and $117,635,864 in the Conservative, Moderate, and Aggressive Allocation Funds.

NOTE 4 — INVESTMENTS

Investments that represent 5% or more of the net assets available for benefits as of December 31, 2007 and 2006 were as follows:

	December 31,
	2007		2006
DuPont company stock fund	$	3,572,107	$	4,218,091
Master Trust		18,767,265		16,317,048

During the years ended December 31, 2007 and 2006, the Plan’s investments (including gains and losses on investments bought and sold as well as held during the year) appreciated (depreciated) in value as follows:

10

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC
Notes to Financial Statements

	December 31,
	2007			2006
Company stock funds	$	(306,772	)	$	613,523
Mutual funds		(113,048	)		243,844
Common/collective trust funds		62,572			187,527
Net (depreciation) appreciation in fair value of investments	$	(357,248	)	$	1,044,894

NOTE 5 — CONOCOPHILLIPS STOCK FUND

On September 28, 1998, DuPont announced that the Board of Directors had approved a plan to divest DuPont’s 100 percent-owned petroleum business, Conoco, Inc. On August 6, 1999, DuPont completed the planned divestiture through a tax-free split-off. DuPont exchanged its shares of Conoco, Inc. Class B common stock for shares of DuPont common stock. Plan participants had the option to exchange shares of DuPont common stock, which were held in their participant accounts in the DuPont Common Stock Fund. For each share of DuPont common stock exchanged, the participants received an appropriate number of shares of Conoco Class B common stock. Accordingly, the Conoco Class B Stock Fund was created as an investment fund of the Plan. No additional shares of Conoco Class B common stock may be purchased by Plan participants through payroll deductions, fund transfers, or the reinvestment of dividends. Dividends earned on Conoco Class B common stock are distributed pro rata to the investment options in participants’ accounts based upon their current investment elections. On August 30, 2002, Conoco Stock Fund became ConocoPhillips Stock Fund. The balance of the ConocoPhillips Stock Fund was $404,757 and $331,912 at December 31, 2007 and 2006, respectively.

NOTE 6 — TAX STATUS

The Plan is a qualified plan pursuant to Section 401(a) of the Internal Revenue Code (the “Code”) and the related Trusts are exempt from federal taxation under Section 501(a) of the Code. The Company has received a favorable tax determination letter from the Internal Revenue Service dated September 3, 2003. The Plan has been amended since receiving the determination letter. However, the Plan administrator believes that the Plan is currently designed and operated in accordance with the applicable sections of the Code. Accordingly, no provision has been made for federal income taxes in the financial statements.

NOTE 7 — RELATED PARTY TRANSACTIONS

Certain Plan investments are shares of mutual funds and units of common/collective trust funds managed by Merrill Lynch, the Trustee. The Plan offers the DuPont Company Stock Fund investment option. At December 31, 2007 the Plan held 81,018.523 shares of DuPont common stock valued at $3,572,107. At December 31, 2006 the Plan held 86,595.995 shares of DuPont common stock valued at $4,218,091. The Plan purchased $605,433 and $840,796 of stock during the years ended December 31, 2007 and 2006, respectively. The Plan sold $870,770 and $2,189,311 of stock during the years ended December 31, 2007 and 2006, respectively.

In addition, the assets of the Stable Value Fund are managed by DuPont Capital Management Corporation (“DCMC”), a registered investment adviser and wholly-owned subsidiary of DuPont, under the terms of an investment management agreement between DCMC and the Company. DCMC hires additional investment managers to manage a portion of the fixed income assets backing synthetic GIC’s allocated to the Stable Value Fund. The amount of DCMC fees accrued and paid by the Stable Value fund was

11

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC
Notes to Financial Statements

$2,198,464 and $1,943,720 for the years ended December 31, 2007 and December 31, 2006, respectively.

NOTE 8 — RECONCILIATION OF FINANCIAL STATEMENTS TO FORM 5500

The following is a reconciliation of net assets available for benefits per the financial statements at December 31, 2007 and 2006 to the Form 5500:

	December 31,
	2007			2006
Net assets available for benefits per the financial statements	$	35,540,216		$	31,662,150
Amounts allocated to withdrawing participants at December 31, 2007		(51,329	)		(27,221	)
Adjustment from contract value to fair value for fully benefit-responsive investment contracts		370,930			145,311
Net assets available for benefits per the Form 5500	$	35,859,817		$	31,780,240

The following is a reconciliation of Master Trust gain per the financial statements for the year ended December 31, 2007 to the Form 5500:

	December 31,
	2007
Net appreciation in value of Master Trust included in the financial statements	$	940,301
2007 adjustment from contract value to fair value for fully benefit-responsive investment contracts		370,930
2006 adjustment from contract value to fair value for fully benefit-responsive investment contracts		(145,311	)
Net appreciation in value of Master Trust per the Form 5500	$	1,165,920

	December 31,
	2007
Benefits paid to participants per the financial statements	$	3,878,488
Amounts allocated to withdrawing participants at December 31, 2007		51,329
Amounts allocated to withdrawing participants at December 31, 2006		(27,221	)
Benefits paid to participants per the form 5500	$	3,902,596

Amounts allocated to withdrawing participants are recorded on the Form 5500 for benefit claims that have been processed and approved for payment prior to December 31 but are not yet paid as of that date.

12

Thrift and Savings Plan for Employees of Sentinel Transportation, LLC
Notes to Financial Statements

NOTE 9 — PLAN TERMINATION

Although it has not expressed any intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions of ERISA. In the event of Plan termination, participants would become 100 percent vested in all employer contribution.

NOTE 10 — RISKS AND UNCERTAINTIES

The Plan invests in various investment securities. Investment securities are exposed to various risks such as interest rate, market and credit risks. Due to the level of risk associated with certain investment securities, it is at least reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect participants’ account balances and the amounts reported in the statement of net assets available for benefits.

NOTE 11 — SUBSEQUENT EVENTS

Effective January 28, 2008 all the assets of the Master Trust were transferred from Merrill Lynch to Northern Trust Corporation, which became the trustee of a new Master Trust. Merrill Lynch remained as the trustee for the existing mutual funds and the Company Stock Funds. Other significant changes include new investment choices and modifications in the loan provision

13

Supplemental Schedule

Thrift Plan for Employees of Sentinel Transportation, LLC Schedule I

Schedule of Assets (Held at End of Year) as of December 31, 2007
Form 5500, Schedule H, Part IV, Line I

				(e)
	(b)	(c)	(d)	Current
(a)	Identity of Issue	Description of Investment	Cost	Value
	AIM Constellation Fund Instl	Registered Investment Company	**	$	134,642
	AIM Charter Fund Institutional CL	Registered Investment Company	**		48,824
	Fidelity Equity Income Fund	Registered Investment Company	**		597,939
	Fidelity Fund PV 1	Registered Investment Company	**		186,280
	Fidelity Growth & Income Fund Class A	Registered Investment Company	**		405,425
	Fidelity Low Priced Stock Fund	Registered Investment Company	**		621,958
	Fidelity Magellan Fund	Registered Investment Company	**		650,270
	Franklin Balance Sheet Investment Fund Adv	Registered Investment Company	**		1,157,059
	Franklin Growth Fund Adv Class	Registered Investment Company	**		163,425
	Franklin Small-Mid Cap Growth Adv CL	Registered Investment Company	**		517,255
	Janus Enterprise Fund	Registered Investment Company	**		285,128
	Janus Research Fund	Registered Investment Company	**		390,927
*	Blackrock Global Growth Fund Class I	Registered Investment Company	**		654,698
*	Blackrock Intl Value Fund Class I	Registered Investment Company	**		730,196
*	Blackrock Balanced Capital Fund Class I	Registered Investment Company	**		150,198
*	Blackrock Basic Value Fund Class I	Registered Investment Company	**		331,068
*	Blackrock Fundamental Growth Fund Class I	Registered Investment Company	**		195,403
	MFS Research Fund	Registered Investment Company	**		25,311
	MFS Total Return Fund	Registered Investment Company	**		455,652
	Templeton Growth Fund	Registered Investment Company	**		516,333
	Templeton Institutional	Registered Investment Company	**		302,223
	Barclays 3-Way Asset Allocation Fund	Common/Collective Trust	**		307,254
*	Merrill Lynch Small Capital Index CT Tier 2	Common/Collective Trust	**		524,886
*	Merrill Lynch Equity Index TR Tier 6	Common/Collective Trust	**		709,939
*	Merrill Lynch International Index CT Tier 2	Common/Collective Trust	**		117,379
*	DuPont Company Stock Fund	Company Stock Fund	**		3,572,107
	ConocoPhillips Stock Fund	Company Stock Fund	**		404,757
*	Plan interest in the DuPont and Related
	Companies Defined Contribution Plan
	Master Trust (“Master Trust”)	Master Trust	**		19,138,195
*	Participant Loans	4% to 9.25% Maturing from January 2008 — September 2017	**		1,318,059
	Investment Total			$	34,612,790

*	Party in Interest
**	Cost not required for participant directed investments

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