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 Apple Inc. 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: February 14, 2023	/S/ Warren E. Buffett
	Warren E. Buffett
	Berkshire Hathaway Inc.
Dated: February 14, 2023	/S/ Warren E. Buffett
	By: Warren E. Buffett Title: Chairman of the Board
	National Indemnity Company
Dated: February 14, 2023	/S/ Marc D. Hamburg
	By: Marc D. Hamburg Title: Chairman of the Board
	National Fire & Marine Insurance Company
Dated: February 14, 2023	/S/ Marc D. Hamburg
	By: Marc D. Hamburg
	Title: Chairman of the Board
	Columbia Insurance Company
Dated: February 14, 2023	/S/ Marc D. Hamburg
	By: Marc D. Hamburg
	Title: Chairman of the Board
	British Insurance Company of Cayman
Dated: February 14, 2023	/S/ Dale D. Geistkemper
	By: Dale D. Geistkemper
	Title: Treasurer

	Cypress Insurance Company
Dated: February 14, 2023	/S/ Marc D. Hamburg
	By: Marc D. Hamburg
	Title: Assistant Secretary
	Redwood Fire & Casualty Insurance Company
Dated: February 14, 2023	/S/ Marc D. Hamburg
	By: Marc D. Hamburg
	Title: Assistant Secretary
	GEICO Corporation
Dated: February 14, 2023	/S/ Todd A. Combs
	By: Todd A. Combs
	Title: President
	Government Employees Insurance Company
Dated: February 14, 2023	/S/ Todd A. Combs
	By: Todd A. Combs
	Title: President
	The Medical Protective Company
Dated: February 14, 2023	/S/ Anthony A. Bowser
	By: Anthony A. Bowser
	Title: Treasurer
	MedPro Group Inc.
Dated: February 14, 2023	/S/ Anthony A. Bowser
	By: Anthony A. Bowser
	Title: Treasurer
	Berkshire Hathaway Life Insurance Company of Nebraska
Dated: February 14, 2023	/S/ Dale D. Geistkemper
	By: Dale D. Geistkemper
	Title: Treasurer

	Berkshire Hathaway Homestate Insurance Company
Dated: February 14, 2023	/S/ Andrew Linkhart
	By: Andrew Linkhart
	Title: Treasurer
	WestGUARD Insurance Company
Dated: February 14, 2023	/S/ Sy Foguel
	By: Sy Foguel
	Title: President
	Oak River Insurance Company
Dated: February 14, 2023	/S/ Andrew Linkhart
	By: Andrew Linkhart
	Title: Chief Financial Officer
	Old United Casualty Company
Dated: February 14, 2023	/S/ Glen A. Mayer
	By: Glen A. Mayer
	Title: President
	MPP Company, Inc.
Dated: February 14, 2023	/S/ Glen A. Mayer
	By: Glen A. Mayer
	Title: President
	Berkshire Hathaway Direct Insurance Company
Dated: February 14, 2023	/S/ Dale D. Geistkemper
	By: Dale D. Geistkemper
	Title: Treasurer
	Van Enterprises Inc.
Dated: February 14, 2023	/S/ Glen A. Mayer
	By: Glen A. Mayer
	Title: President

	GEICO Casualty Company
Dated: February 14, 2023	/s/ Todd. A Combs
	by Todd A. Combs
	Title: President
	GEICO Advantage Insurance Company
Dated: February 14, 2023	/s/ Todd A. Combs
	by Todd A. Combs
	Title: President
	General Re Corporation
Dated: February 14, 2023	/s/ Michael P. O’Dea
	by Michael P. O’Dea
	Title: Senior Vice President
	General Reinsurance Corporation
Dated: February 14, 2023	/s/ Michael P. O’Dea
	by Michael P. O’Dea
	Title: Senior Vice President
	General Star Indemnity Company
Dated: February 14, 2023	/s/ Edward M. Nosenzo
	by Edward M. Nosenzo
	Title: Treasurer
	GEICO Marine Insurance Company
Dated: February 14, 2023	/s/ Todd A. Combs
	by Todd A. Combs
	Title: President
	Mt. Vernon Fire Insurance Company
Dated: February 14, 2023	/s/ Stephen J. Rivituso
	by Stephen J. Rivituso
	Title: Senior Vice President

	US Underwriters Insurance Company
Dated: February 14, 2023	/s/ Stephen J. Rivituso
	by Stephen J. Rivituso
	Title: Executive Vice President
	United States Liability Insurance Company
Dated: February 14, 2023	/s/ Stephen J. Rivituso
	by Stephen J. Rivituso
	Title: Senior Vice President
	Central States Indemnity Company of Omaha
Dated: February 14, 2023	/s/ Kim Young
	by Kim Young
	Title: Chief Financial Officer
	GEICO Choice Insurance Company
Dated: February 14, 2023	/s/ Todd A. Combs
	by Todd A. Combs
	Title: President
	GEICO Indemnity Company
Dated: February 14, 2023	/s/ Todd A. Combs
	by Todd A. Combs
	Title: President
	GEICO Secure Insurance Company
Dated: February 14, 2023	/s/ Todd A. Combs
	by Todd A. Combs
	Title: President