Type	Name	Date
Underwriting agreement	UNDERWRITING AGREEMENT	05/13/2020
Underwriting agreement	Underwriting Agreement	12/12/2019
Underwriting agreement	Underwriting Agreement	03/12/2019
Indenture	Indenture, among the Company, the Subsidiary Guarantors and the Trustee (filed as an Exhibit to the Company’s current report on Form 8-K (Date of Report: June 27, 2001) and incorporated herein by reference)	05/26/2016
Underwriting agreement	Underwriting Agreement	05/26/2016
Underwriting agreement	Underwriting Agreement	03/10/2015
Indenture	Indenture, among the Company, the Subsidiary Guarantors and the Trustee (filed as an Exhibit to the Company’s current report on Form 8-K (Date of Report: June 27, 2001) and incorporated herein by reference)	03/10/2015
Underwriting agreement	Underwriting Agreement	03/17/2014
Underwriting agreement	Underwriting Agreement	03/25/2011
Underwriting agreement	Underwriting Agreement	02/02/2011
Underwriting agreement	Underwriting Agreement	11/16/2009

Type	Name	Date
Other	Letter Agreement between Dr. Surya N. Mohapatra and the Company	10/25/2011