EXHIBIT A 
MEMORANDUM OF LEASE TERMINATION 
SIGNATORY LEASE AND OPERATING AGREEMENT 
GREAT WALL AIRLINES CO., LTD. 
THIS MEMORANDUM OF LEASE TERMINATION ("Termination") is made and
entered into as of May 31, 2011, by and between the Port of Seattle, a municipal corporation of
the State of Washington ("Port"), and Great Wall Airlines Co., Ltd., a Chinese corporation
("Airline"). 
1.     Port and Airline entered into that certain 2006-2012 Signatory Lease and
Operating Agreement dated as of May 9, 2008 ("Lease"). Airline did not lease any Port
premises under the Lease. 
2.     Airline merged its operations with China Cargo Airlines on May 31, 2011. China
Cargo Airlines entered into a 2006-2012 Signatory Lease and Operating Agreement with the
Port, dated as of April 3, 2006. Accordingly, the parties wish to terminate the Lease prior to its
date of expiration (December 31, 2012), and in accordance with the terms and conditions more
particularly set forth in this Termination. 
3.     Airline and Port, for the reasons set forth above, confirm the termination of the
Lease and acknowledge that said Lease shall have no further force or effect.
4.     This Termination may be executed in any number of counterparts, each of which
shall be deemed an original and all of which, when taken together, shall be deemed to be one and
the same document. Signature pages may be taken from a counterpart and attached to other
counterparts to form one document, which shall constitute a fully executed agreement. 
IN WITNESS WHEREOF, Port and Airline have caused their duly authorized representatives to
execute this Termination as of the date first written above. 
PORT OF SEATTLE 
a municipal corporation 

By: 
Name: 
Title: 

GREAT WALL AIRLINES CO., LTD. 
By: 
Name: 
Title:

STATE OF WASHINGTON ) 
) ss. 
COUNTY OF KING     ) 
I certify that I know or have satisfactory evidence that ______________________ is the
person who appeared before me, and said person acknowledged that (he/she) signed this
instrument, on oath stated that (he/she) was authorized to execute the instrument and
acknowledged it as the _________________________ of the PORT OF SEATTLE, a municipal
corporation of the State of Washington, to be the free and voluntary act of such party for the uses
and purposes mentioned in the instrument. 
SUBSCRIBED AND SWORN to before me this __________ day of
____________________, 20___. 

Notary Public in and for the State of Washington,
residing at:___________________________ 
My Commission Expires: _______________ 

STATE OF ___________________ ) 
) ss. 
COUNTY OF _________________ ) 
I certify that I know or have satisfactory evidence that ______________________ is the
person who appeared before me, and said person acknowledged that (he/she) signed this
instrument, on oath stated that (he/she) was authorized to execute the instrument and
acknowledged it as the _________________________ of _______________________, a
______________, of the State of _________________, to be the free and voluntary act of such
party for the uses and purposes mentioned in the instrument. 
SUBSCRIBED AND SWORN to before me this __________ day of
____________________, 20___. 

Notary Public in and for the State of ___________,
residing at:___________________________ 
My Commission Expires:______________