Exhibit 101.1 Interactive Date Files

Exhibit 10.26

INFORMATION IN THIS EXHIBIT IDENTIFIED BY BRACKETS IS CONFIDENTIAL AND HAS BEEN EXCLUDED PURSUANT TO ITEM 601(B)(10)(IV) OF REGULATION S-K BECAUSE IT IS BOTH (I) NOT MATERIAL AND (II) THE TYPE THAT FEDEX TREATS AS PRIVATE OR CONFIDENTIAL.

Supplemental Agreement No. 16

to

Purchase Agreement No. 3157

between

The Boeing Company

And

Federal Express Corporation

Relating to Boeing Model 777-FREIGHTER Aircraft

THIS SUPPLEMENTAL AGREEMENT, entered into as of the 31 st day of January, 2011, by and between THE BOEING COMPANY (Boeing) and FEDERAL EXPRESS CORPORATION (Customer);

W I T N E S S E T H :

WHEREAS, the parties entered into that certain Purchase Agreement No. 3157, dated November 7, 2006 (Purchase Agreement), relating to the purchase and sale of certain Boeing Model 777-FREIGHTER Aircraft (Aircraft); and

WHEREAS, Customer desires to add two (2) Aircraft to the Purchase Agreement with delivery dates as follows;

Delivery Dates

for

Aircraft

[ * ]

[ * ]

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Supplemental Agreement 16 to

Purchase Agreement No. 3157

WHEREAS, Customer desires to exercise two (2) Option Aircraft under Letter Agreement 6-1162-RRO-1062 to the Purchase Agreement with delivery months as follows;

Delivery Month

for

Option Aircraft

[ * ]

[ * ]

NOW THEREFORE, in consideration of the mutual covenants herein contained, the parties hereto agree to supplement the Purchase Agreement as follows:

All terms used herein and in the Purchase Agreement, and not defined herein, shall have the same meaning as in the Purchase Agreement.

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Supplemental Agreement 16 to

Purchase Agreement No. 3157

S16 - 3

Supplemental Agreement 16 to

Purchase Agreement No. 3157

S16 - 4

EXECUTED as of the day and year first above written.

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TABLE OF CONTENTS

January 11, 2011

6-1162-RRO-1144 R4

The Boeing Company

P.O. Box 3707

Seattle,WA 98124-2207

Federal Express Corporation

2955 Republican Drive

Memphis, TN 38118

Dear Mr. Burkhart:

In consideration of the strong business relationship between Boeing and Customer and Customer executing Supplemental Agreements No. 8, No. 13, No. 14, No. 15 and No. 16, Boeing has agreed to [ * ].

Further Customer agrees and acknowledges that Attachment A can not be revised/modified in any way unless specifically agreed to in writing by Boeing.

Very truly yours,

THE BOEING COMPANY

Attachment

P.A. 3157, 6-1162-RRO-1144R4

FED-PA—LA-1001683 R1

Federal Express Corporation

3610 Hacks Cross

Memphis TN 38125

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement have the same meaning as in the Purchase Agreement.

[ * ]

7. ADVANCE PAYMENT SETOFF RIGHTS

Customer agrees that if it defaults on any monetary obligation under the Purchase Agreement and has failed to cure such default within five (5) calendar days of receiving written notice from Boeing, then Boeing may apply any/all advance payments paid by Customer to cure, in part or in whole, any default made with respect to any Aircraft or other obligation in the Purchase Agreement. In the event that Boeing exercises such setoff rights and applies any advance payments to cure any such default by Customer with respect to an Aircraft or other obligation in the Purchase Agreement, Boeing will be entitled to require Customer to replace within ten days of written notice, the amount of advance payments applied to cure such default such that the total amount of advance payments will be restored to the aggregate amount of advance payments owed at that time by Customer.

[ * ]

9. PUBLIC ANNOUNCEMENT

Notwithstanding the terms in the Purchase Agreement, neither Party shall, except as required by law, in any manner advertise or make any public statement regarding Customer’s purchase of the Block D Aircraft without the prior written consent of the other Party. Neither Party shall disclose any details of this Agreement to any third party, except as may be authorized in writing by an authorized officer of the other Party or as set forth in the Confidential Treatment paragraph below.

Confidential Treatment. Customer understands that certain commercial and financial information contained in this Letter Agreement /and attachment(s) hereto is considered by Boeing as confidential. Customer agrees that it will treat this Letter Agreement and the information contained herein as confidential and will not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity. Notwithstanding the above, Boeing acknowledges that Customer may disclose this Letter Agreement / and attachment(s) hereto to FedEx Corporation, its Board of Directors, and to Customer’s and FedEx Corporation’s professional advisors who are under a duty of confidentiality with respect thereto.

10. EFFECTIVENESS

This letter agreement shall not become effective unless and until Supplemental Agreement No. 16 becomes effective.

If the foregoing correctly sets forth your understanding of our agreement with respect to matters described above, please indicate your acceptance and approval below.

Very truly yours,

THE BOEING COMPANY

FED-PA—LA-1000790R 2

Federal Express Corporation

3610 Hacks Cross

Memphis TN 38125

Subject: Special Matters for Block C Aircraft

Reference: Purchase Agreement No. 3157 (the Purchase Agreement) between The Boeing Company (Boeing) and Federal Express Corporation (Customer) relating to Model 777-FREIGHTER aircraft (the Aircraft)

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement have the same meaning as in the Purchase Agreement.

[ * ]

9. ADVANCE PAYMENT SETOFF RIGHTS

Customer agrees that if it defaults on any monetary obligation under the Purchase Agreement and has failed to cure such default within five (5) calendar days of receiving written notice from Boeing, then Boeing may apply any/all advance payments paid by Customer to cure, in part or in whole, any default made with respect to any Aircraft or other obligation in the Purchase Agreement. In the event that Boeing exercises such setoff rights and applies any advance payments to cure any such default by Customer with respect to an Aircraft or other obligation in the Purchase Agreement, Boeing will be entitled to require Customer to replace within ten days of written notice, the amount of advance payments applied to cure such default such that the total amount of advance payments will be restored to the aggregate amount of advance payments owed at that time by Customer.

[ * ]

11. PUBLIC ANNOUNCEMENT

Notwithstanding the terms in the Purchase Agreement, neither Party shall , except as required by law, in any manner advertise or make any public statement regarding Customer’s purchase of the Block C Aircraft without the prior written consent of the other Party. Neither Party shall disclose any details of this Agreement to any third party, except as may be authorized in writing by an authorized officer of the other Party or as set forth in the Confidential Treatment paragraph below.

Confidential Treatment. Customer understands that certain commercial and financial information contained in this Letter Agreement /and attachment(s) hereto is considered by Boeing as confidential. Customer agrees that it will treat this Letter Agreement and the information contained herein as confidential and will not, without the prior written consent of Boeing, disclose this Letter Agreement or any information contained herein to any other person or entity. Notwithstanding the above, Boeing acknowledges that Customer may disclose this Letter Agreement / and attachment(s) hereto to FedEx Corporation, its Board of Directors, and to Customer’s and FedEx Corporation’s professional advisors who are under a duty of confidentiality with respect thereto.

If the foregoing correctly sets forth your understanding of our agreement with respect to matters described above, please indicate your acceptance and approval below.

12. EFFECTIVENESS

This letter agreement shall not become effective unless and until Supplemental Agreement No. 16 becomes effective.

Supplemental Agreement No. 17

to

Purchase Agreement No. 3157

between

The Boeing Company

And

Federal Express Corporation

Relating to Boeing Model 777-FREIGHTER Aircraft

THIS SUPPLEMENTAL AGREEMENT, entered into as of the 14 th day of February 2011, by and between THE BOEING COMPANY (Boeing) and FEDERAL EXPRESS CORPORATION (Customer);

W I T N E S S E T H :

WHEREAS, the parties entered into that certain Purchase Agreement No. 3157, dated November 7, 2006 (Purchase Agreement), relating to the purchase and sale of certain Boeing Model 777-FREIGHTER Aircraft (the Aircraft);

WHEREAS, the parties entered into an Aircraft General Terms Agreement, dated November 7, 2006, as incorporated by reference into the Purchase Agreement (AGTA);

WHEREAS, Customer anticipates, pursuant to that certain Purchase Agreement Assignment between [ * ] and Customer (Assignment Agreement), taking delivery from Boeing of one (1) new Boeing model 777-F aircraft with manufacturing serial number [ * ]; and

WHEREAS, Boeing and Customer desire that, for the purposes of post-delivery support and operation, [ * ].

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Supplemental Agreement 17 to

Purchase Agreement No. 3157

NOW THEREFORE, in consideration of the mutual covenants herein contained, the parties hereto agree to supplement the Purchase Agreement as follows:

All terms used herein and in the Purchase Agreement, and not defined herein, shall have the same meaning as in the Purchase Agreement.

1. AGTA

The entire AGTA, and as amended by Letter Agreement No. 6-1162-RCN-1795 entitled “AGTA Amended Articles”, shall pertain and be applicable to Customer with respect to [ * ], subject to the following:

[ * ]

2. Purchase Agreement

The following provisions of the Purchase Agreement will be applicable to Customer with respect to [ * ].

3. [ * ]

4. Pre-Delivery Inspections, Customer Walk, Customer Flight(s) and Delivery Commitment Letter

Customer shall be entitled, subject to Boeing providing its concurrence, not to be unreasonably withheld, conditioned or delayed, to a Services Agreement as presented by Customer and [ * ] to Boeing, to [ * ].

5. [ * ]

6. Document Review

Prior to the delivery of [ * ], Boeing and [ * ] will conduct a document review, [ * ].

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Supplemental Agreement 17 to

Purchase Agreement No. 3157

7. Disclaimer and Release and Exclusion of Consequential and Other Damages

The DISCLAIMER AND RELEASE and EXCLUSION OF CONSEQUENTIAL AND OTHER DAMAGES in Article 11 of Part 2 of Exhibit C to the Aircraft General Terms Agreement and the insurance provisions in Article 8.2 of the Aircraft General Terms Agreement (as amended by Letter Agreement No. 6-1162-RCN-1795 entitled AGTA Amended Articles), will apply to and be binding on Customer and applicable to [ * ].

8. Other Rights and Obligations

For the sake of clarity, it is the parties’ intent to have [ * ] governed under [ * ].

9. Effectiveness

Except with respect to matters, rights, obligations, mutual covenants and entitlements expressed herein pertaining to pre-delivery matters (which shall be effective as of the date Boeing and Customer enter this Supplemental Agreement No. 17), the matters, rights, obligations, mutual covenants and entitlements of Boeing and Customer shall be effective upon [ * ].

EXECUTED as of the day and year first above written.

Omitted Attachments

Certain attachments to this exhibit regarding delivery and pricing of certain B777F aircraft manufactured by The Boeing Company for FedEx have been omitted pursuant to Item 601(a)(5) of Regulation S-K because the information contained therein is not material and is not otherwise publicly disclosed. FedEx will furnish supplementally copies of these attachments to the Securities and Exchange Commission or its staff upon request.

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