LSB Industries, Inc.

(Name of Issuer)

Common Stock, par value $0.10 per share

(Title of Class of Securities)

502160104

(CUSIP Number)

December 31, 2019

(Date of Event Which Requires Filing of this Statement)

Schedule 13G
CUSIP No. 502160104		Page 2 of 15 Pages

Item 1(a).	Name of Issuer:
		LSB Industries, Inc.

Item 1(b).	Address of Issuer's Principal Executive Offices:
		3503 NW 63rd Street, Suite 500, Oklahoma City, OK 73116

Item 2(a).	Names of Persons Filing:
		This statement is filed by (collectively, the "Reporting Persons")
		(i)          Robert E. Robotti ("Robotti"), a United States citizen;
		(ii)         Robotti & Company, Incorporated ("ROBT"), a New York corporation and the parent company of Robotti & Company Advisors, LLC and Robotti Securities, LLC;
		(iii)        Robotti & Company Advisors, LLC ("Robotti Advisors"), a New York limited liability company and an investment advisor registered under the Investment Advisers Act of 1940, as amended;
		(iv)        Robotti Securities, LLC ("Robotti Securities") a New York limited liability company and a broker-dealer registered under Section 15 of the Securities Exchange Act of 1934, as amended; (v)         Kenneth R. Wasiak ("Wasiak"), a United States citizen;
		(vi)        Ravenswood Management Company, L.L.C. ("RMC"), a New York limited liability company and the general partner of The Ravenswood Investment Company, L.P. and Ravenswood Investments III, L.P.;
		(vii)       The Ravenswood Investment Company, L.P. ("RIC"), a Delaware limited partnership and an advisory client of Robotti Advisors;
		(viii)      Ravenswood Investments III, L.P. ("RI"), a New York limited partnership and an advisory client of Robotti Advisors; and
		(ix)        Suzanne Robotti, a United States citizen.

Item 2(b).	Address of Principal Business Office or, if None, Residence:
		The principal business address of each of Mr. Robotti, ROBT, Robotti Advisors, Robotti Securities, RMC, RIC, RI and Ms. Robotti is 60 East 42nd Street, Suite 3100, New York, NY 10165.
		The principal business address of Mr. Wasiak is 104 Gloucester Road, Massapequa, New York 11758.

Item 2(c).	Citizenship:
		See Item 2(a)

Item 2(d).	Title of Class of Securities:
		Common Stock, par value $0.10 per share (the "Common Stock")

Item 2(e).	CUSIP Number
		502160104

Item 3.	If this Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the
	Person Filing is a:
		Not Applicable

Item 4.	Ownership
	(i) Mr. Robotti: (1)(2)
		(a) Amount beneficially owned: 1,665,145 shares
		(b) Percent of class: 5.79%
		(c) Number of shares as to which such person has:
			(i) Sole power to vote or to direct the vote: 10,000 shares
			(ii) Shared power to vote or to direct the vote: 1,655,145 shares
			(iii) Sole power to dispose or to direct the disposition of: 10,000 shares
			(iv) Shared power to dispose or to direct the disposition of: 1,655,145 shares

	(ii) ROBT: (1)
		(a) Amount beneficially owned: 1,655,145 shares
		(b) Percent of class: 5.75%
		(c) Number of shares as to which such person has:
			(i) Sole power to vote or to direct the vote: 0 shares
			(ii) Shared power to vote or to direct the vote 1,655,145 shares
			(iii) Sole power to dispose or to direct the disposition of: 0 shares
			(iv) Shared power to dispose or to direct the disposition of: 1,655,145 shares

	(iii) Robotti Advisors: (1)
		(a) Amount beneficially owned: 1,640,090 shares
		(b) Percent of class: 5.70%
		(c) Number of shares as to which such person has:
			(i) Sole power to vote or to direct the vote: 0 shares
			(ii) Shared power to vote or to direct the vote: 1,640,090 shares
			(iii) Sole power to dispose or to direct the disposition of: 0 shares
			(iv) Shared power to dispose or to direct the disposition of: 1,640,090 shares

	(v) Mr. Wasiak: (1)
		(a) Amount beneficially owned: 995,737 shares
		(b) Percent of class: 3.46%
		(c) Number of shares as to which such person has:
			(i) Sole power to vote or to direct the vote: 0 shares
			(ii) Shared power to vote or to direct the vote: 995,737 shares
			(iii) Sole power to dispose or to direct the disposition of: 0 shares
			(iv) Shared power to dispose or to direct the disposition of: 995,737 shares

	(vi) RMC: (1)
		(a) Amount beneficially owned: 995,737 shares
		(b) Percent of class: 3.46%
		(c) Number of shares as to which such person has:
			(i) Sole power to vote or to direct the vote: 0 shares
			(ii) Shared power to vote or to direct the vote: 995,737 shares
			(iii) Sole power to dispose or to direct the disposition of: 0 shares
			(iv) Shared power to dispose or to direct the disposition of: 995,737 shares

	(vii) RIC: (1)
		(a) Amount beneficially owned: 583,697 shares
		(b) Percent of class: 2.03%
		(c) Number of shares as to which such person has
			(i) Sole power to vote or to direct the vote: 0 shares
			(ii) Shared power to vote or to direct the vote: 583,697 shares
			(iii) Sole power to dispose or to direct the disposition of: 0 shares
			(iv) Shared power to dispose or to direct the disposition of: 583,697 shares

	(viii) RI: (1)
		(a) Amount beneficially owned: 412,040 shares
		(b) Percent of class: 1.43%
		(c) Number of shares as to which such person has
			(i) Sole power to vote or to direct the vote: 0 shares
			(ii) Shared power to vote or to direct the vote: 412,040 shares
			(iii) Sole power to dispose or to direct the disposition of: 0 shares
			(iv) Shared power to dispose or to direct the disposition of: 412,040 shares

	(ix) Suzanne Robotti: (1)(2)
		(a) Amount beneficially owned: 10,000 shares
		(b) Percent of class: less than one percent
		(c) Number of shares as to which such person has
			(i) Sole power to vote or to direct the vote: 10,000 shares
			(ii) Shared power to vote or to direct the vote: 0 shares
			(iii) Sole power to dispose or to direct the disposition of: 10,000 shares
			(iv) Shared power to dispose or to direct the disposition of: 0 shares

Item 5.	Ownership of Five Percent or Less of a Class.
		Not Applicable.

Item 6.	Ownership of More than Five Percent on Behalf of Another Person.
		Robotti Securities’ discretionary customers and Robotti Advisors' clients have the right to receive and the power to direct the receipt of dividends from, and the proceeds from the sale of, Common Stock owned by them.  Except as set forth in the immediately preceding sentence, no person other than the Reporting Persons is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such Common Stock beneficially owned by the Reporting Persons.  No discretionary customer or client is known to any Reporting Person to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, more than five percent of the Issuer's Common Stock.

Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
		See Item 2 and Note (1) in Item 4.

Item 8.	Identification and Classification of Members of the Group.
		See Item 2 and Note (1) in Item 4.

Item 9.	Notice of Dissolution of Group.
		Not Applicable.

Item 10.	Certifications:
		By signing below we certify that, to the best of our knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under §240.14a-11.

Date:

February 11, 2020

Individuals
/s/ Robert E. Robotti			/s/ Suzanne Robotti
Robert E. Robotti			Suzanne Robotti
/s/ Kenneth R. Wasiak
Kenneth R. Wasiak
Robotti & Company, Incorporated
By:	/s/ Robert E. Robotti
	Name: Robert E. Robotti
	Title: President and Treasurer
Robotti & Company Advisors, LLC			Robotti Securities, LLC
By:	/s/ Robert E. Robotti		By:	/s/ Robert E. Robotti
	Name: Robert E. Robotti			Name: Robert E. Robotti
	Title: President and Treasurer			Title: President and Treasurer
Ravenswood Management Company, L.L.C.
By:	/s/ Robert E. Robotti
	Name: Robert E. Robotti
	Title: Managing Member
The Ravenswood Investment Company, L.P.			Ravenswood Investments III, L.P.
By:	Ravenswood Management Company, L.L.C., General Partner		By:	Ravenswood Management Company, L.L.C., General Partner
By:	/s/ Robert E. Robotti		By:	/s/ Robert E. Robotti
	Name: Robert E. Robotti			Name: Robert E. Robotti
	Title: Managing Member			Title: Managing Member