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 13D (including additional amendments thereto) with respect to the shares of Common Stock, par value $0.001 per share, of Green Plains Inc. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.

Dated: November 17, 2021

Ancora Merlin, LP
Ancora Merlin Institutional, LP
Ancora Catalyst, LP
Ancora Catalyst Institutional, LP
Ancora Catalyst SPV I LP – Series Q
Ancora Catalyst SPV I LP – Series R
Ancora Catalyst SPV I LP – Series S
Ancora Catalyst SPV I LP – Series T
By:	Ancora Alternatives LLC, its Investment Advisor and General Partner
By:	Ancora Holdings Group, LLC, its Sole Member
By:	/s/ Frederick DiSanto
	Name:	Frederick DiSanto
	Title:	Chairman and Chief Executive Officer

Ancora Catalyst SPV I SPC Ltd. – Segregated Portfolio H
By:	Ancora Alternatives LLC, its Investment Advisor
By:	Ancora Holdings Group LLC, its Sole Member
By:	/s/ Frederick DiSanto
	Name:	Frederick DiSanto
	Title:	Chairman and Chief Executive Officer

Ancora Alternatives LLC
By:	Ancora Holdings Group, LLC, its Sole Member
By:	/s/ Frederick DiSanto
	Name:	Frederick DiSanto
	Title:	Chairman and Chief Executive Officer

Ancora Advisors, LLC
By:	The Ancora Group Inc., its Sole Member
By:	Ancora Holdings Group, LLC, its Sole Member
By:	/s/ Frederick DiSanto
	Name:	Frederick DiSanto
	Title:	Chairman and Chief Executive Officer

Ancora Family Wealth Advisors, LLC
By:	Inverness Holdings LLC, its Sole Member
By:	Ancora Holdings Group, LLC, its Sole Member
By:	/s/ Frederick DiSanto
	Name:	Frederick DiSanto
	Title:	Chairman and Chief Executive Officer

The Ancora Group LLC
By:	Ancora Holdings Group, LLC, its Sole Member
By:	/s/ Frederick DiSanto
	Name:	Frederick DiSanto
	Title:	Chairman and Chief Executive Officer

Inverness Holdings LLC
By:	Ancora Holdings Group, LLC, its Sole Member
By:	/s/ Frederick DiSanto
	Name:	Frederick DiSanto
	Title:	Chairman and Chief Executive Officer

Ancora Holdings Group, LLC
By:	/s/ Frederick DiSanto
	Name:	Frederick DiSanto
	Title:	Chairman and Chief Executive Officer

/s/ Frederick DiSanto

Frederick DiSanto