To Whom It May Concern:
May 11, 2012
Company Name: The Bank of Yokohama Ltd. Representative: President Tatsumaro Terazawa

?Code No. 8332: Listed on the 1st Section of the Tokyo Stock Exchange)

Re: Conclusion of Basic Agreement on New Bank Added to Shared-Use System

The Bank of Yokohama Ltd., (President: Tatsumaro Terazawa), as of May 11, 2012, has come to a basic agreement to add The 77 Bank Ltd. (President: Teruhiko Ujiie) as a fourth bank to participate the MEJAR shared-use system, launched on January 4, 2010 by the Hokuriku Bank, Ltd. (President: Shigeo Takagi) and the Hokkaido bank, Ltd. (President: Yoshihiro Sekihachi) both subsidiaries of Hokuhoku Financial Group, NTT DATA Corporation(President and CEO: Toru Yamashita) and us.
Details
1. Background
Nov, 2005?The bank of Yokohama, the Hokuriku Bank, and the Hokkaido Bank agreed in principle to consider participating in the MEJAR shared-use system.
Mar, 2006?The three banks concluded the basic agreement on the system.
Jan, 2010?The bank of Yokohama introduced the system ahead of the other banks. May, 2011?The Hokuriku Bank and the Hokkaido Bank introduced the system.
Nov, 2011?The three banks came to a basis agreement to consider adding The 77 Bank. May, 2012?The three banks concluded the basic agreement to add The 77 Bank.
2. Scope of focus on Shared Systems
The four banks will share the use of backbone system not only for the maintenance of bank deposits, exchanges and loans transactions, but also the date processing, analysis, ATM and internet banking system. In addition, we consider developing and using of each system we have not shared yet.
3. Schedule
We plan to operate shared-use system with The 77 Bank after January 2016.

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