13G Filing: Berkshire Hathaway and Bank Of America Corp (BAC)

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SCHEDULE 13G

EXHIBIT B

JOINT
FILING AGREEMENT PURSUANT TO RULE 13d-1(k)(1)

The undersigned persons hereby agree that reports on Schedule 13G, and amendments
thereto, with respect to the Common Stock of Bank of America Corporation may be filed in a single statement on behalf of each of such persons, and further, each of such persons designates Warren E. Buffett as its agent and Attorney-in-Fact for the purpose of executing any and all Schedule 13G filings required to be made by it with the Securities and Exchange Commission.

Dated: September 8, 2017

/s/ Warren E. Buffett

Warren E. Buffett
Dated: September 8, 2017 Berkshire Hathaway Inc.

/s/ Warren E. Buffett

By: Warren E. Buffett
Title: Chairman and Chief Executive Officer
Dated: September 8, 2017 National Indemnity Company

/s/ Dale D Geistkemper

By: Dale D Geistkemper
Title: Treasurer
Dated: September 8, 2017 GEICO Corporation

/s/ Stephen C. Parsons

By: Stephen C. Parsons
Title: Vice President
Dated: September 8, 2017 Government Employees Insurance Company

/s/ Stephen C. Parsons

By: Stephen C. Parsons
Title: Vice President
Dated: September 8, 2017 GEICO Indemnity Company

/s/ Stephen C. Parsons

By: Stephen C. Parsons
Title: Vice President
Dated: September 8, 2017 General Re Corporation

/s/ Michael P. ODea

By: Michael P. ODea
Title: Senior Vice President

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