Percy Rockdale SC 13G Alpha Metallurgical Resources / Percy Rockdale ownership change

Exhibit 99.1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13G dated December 30, 2021 (including amendments thereto) with respect to the shares of Common Stock, par value $0.01 per share, of Alpha Metallurgical Resources, Inc., and any further amendments thereto executed by each and any of the undersigned shall be filed on the behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated: December 30, 2021

Percy Rockdale LLC
By:	/s/ Michael Gorzynski
	Name:	Michael Gorzynski
	Title:	Sole Manager

Rio Royal LLC
By:	/s/ Michael Gorzynski
	Name:	Michael Gorzynski
	Title:	Sole Manager

MG Capital Management Ltd.
By:	/s/ Michael Gorzynski
	Name:	Michael Gorzynski
	Title:	Sole Director

Continental General Insurance Company
By:	/s/ Michael Gorzynski
	Name:	Michael Gorzynski
	Title:	Chairman

Continental Insurance Group, Ltd.
By:	/s/ Michael Gorzynski
	Name:	Michael Gorzynski
	Title:	President

Continental General Holdings LLC
By:	/s/ Michael Gorzynski
	Name:	Michael Gorzynski
	Title:	Executive Chair

/s/ Michael Gorzynski

Michael Gorzynski