Document:

Revolving Unsecured Promissory Note

 Exhibit 10.2 
 REVOLVING UNSECURED PROMISSORY NOTE 
  

			
	$500,000	  	 Tampa, Florida
 December 9, 2011

 FOR VALUE RECEIVED, ORAGENICS, INC., a Florida corporation located at 3000 Bayport Drive, Suite 685, Tampa, Florida 32607
(“Borrower”), hereby promises to pay to the order of KOSKI FAMILY LIMITED PARTNERSHIP, a Texas limited partnership having a mailing address of 3525 Turtle Creek Boulevard, Unit 19-B, Dallas, Texas 75219 (“Lender”),
the sum of Five Hundred Thousand Dollars ($500,000), together with interest thereon as provided herein. All sums are payable by personal delivery or by mail to Lender at the address listed above, or at such other address as Lender may designate to
Borrower. This note is provided pursuant to the Revolving Credit Agreement dated July 30, 2010 as amended by the First Amendment dated January 24, 2011, the Second Amendment dated February 4, 2011, the Third Amendment dated
June 29, 2011 and the Fourth Amendment dated December 9, 2011, by and between Lender and Borrower. 
  

	1.	Interest. The unpaid principal balance under this Revolving Unsecured Promissory Note (“Promissory Note”) shall bear interest from the date
hereof at an annual rate equal to the London Interbank Offered Rate (LIBOR) plus six percent (6%) (the “Applicable Rate”). The Applicable Rate shall be adjusted quarterly on the first day of each calendar quarter while any
principal balance hereunder remains unpaid, based on the LIBOR in effect on the business day immediately preceding such adjustment date. 

  

	2.	Payment of Principal and Interest. The principal of this Promissory Note, together with all accrued interest thereon, shall be due and payable on July 30,
2012. Any portion of the principal of this Promissory Note may be prepaid, together with the accrued interest with respect to such principal payment, prior to maturity, without penalty. Any payment made under this Promissory Note shall be applied
first to accrued interest and then to principal. Payment of principal and interest shall be made in such coin or currency of the United States of America that, at the time of payment, constitutes legal tender for the payment of public and private
debt. 

  

	3.	Events of Default. The occurrence of any of the following events shall constitute an “Event of Default”: 

(a) the failure of Borrower to pay all or any portion of the principal and interest due and payable under this Promissory Note and such
failure continues for five (5) business days after the Lender notifies Borrower in writing of such failure; 
 (b) the
filing against Borrower of an involuntary petition or other pleading seeking the entry of a decree or order for relief under the United States Bankruptcy Code or any similar federal or state insolvency or other similar law ordering: (i) the
liquidation of Borrower, (ii) a reorganization of Borrower or the business and affairs of Borrower, or (iii) the appointment of a receiver, liquidator, assignee, custodian, trustee or similar official for Borrower or the property of
Borrower, and the failure to have such petition or other pleading denied or dismissed within thirty (30) days from the date of filing; 

  
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 (c) the commencement by Borrower of a voluntary case under the United States Bankruptcy Code
or any similar federal or state insolvency or other similar law, (ii) the consent by Borrower to the appointment or taking possession by a receiver, liquidator, assignee, trustee, custodian or similar official for Borrower or any of the
property of Borrower, or (iii) the making by Borrower of an assignment for the benefit of creditors. 
 (d) the breach of
any term of any of the Loan Documents as defined in that Revolving Credit Agreement of July 30, 2010 by and between Borrower and Lender. 
  

	4.	Rights and Remedies Upon Default. Upon the occurrence of an Event of Default, the principal and all accrued but unpaid interest due under this Promissory Note
shall, at the option of Lender, become immediately due and payable and may be collected forthwith without notice to Borrower, regardless of the stipulated date of maturity and, in that event, Borrower promises to pay, in addition to the unpaid
principal and interest hereunder, all costs, including reasonable attorneys’ fees, paralegals’ fees and expenses for any primary, appellate, bankruptcy and post-judgment proceedings, that Lender may incur or be put to in the collection of
such amounts. Any overdue payment of principal or interest due under this Promissory Note shall bear interest from the due date at twelve percent (12%) per annum. 

 

	5.	Waiver. Borrower hereby waives protest, demand, presentment and notice of dishonor, notice of the maturity, nonpayment, and all requirements necessary to hold it
liable as the maker of this Promissory Note, and agrees that this Promissory Note may be extended in whole or in part without limit as to the number of such extensions or the period or periods thereof, and without notice to it and without affecting
its liability hereunder. Failure to accelerate the debt in the event of any default hereunder, or other indulgence granted from time to time, shall not be construed as a novation of this Promissory Note or a waiver of the right of Lender to
thereafter insist upon strict compliance with the terms of this Promissory Note without previous written notice of such intention being given to Borrower. 

  

	6.	Compliance With Usury Laws. All agreements between Borrower and Lender are hereby expressly limited so that in no event shall the amount paid or agreed to be
paid to Lender for the use, forbearance, or detention of the money loaned under this Promissory Note exceed the maximum amount permissible under the laws of the State of Florida. If, at the time of any interest payment, the payment amount due under
this Promissory Note is in excess of the legal limit, the obligation shall be reduced to the legal limit. If Borrower should ever receive, as interest, an amount that exceeds the highest lawful rate, the amount that would be excessive as interest
shall be applied to the reduction of the principal amount owing under this Promissory Note, and not to the payment of interest. 

  

	7.	Waiver of Jury Trial. BORROWER HEREBY KNOWINGLY, VOLUNTARILY AND INTENTIONALLY WAIVES ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION BASED
HEREON, OR ARISING OUT OF, UNDER OR IN CONJUNCTION WITH, THIS PROMISSORY NOTE AND ANY OTHER AGREEMENT CONTEMPLATED TO BE EXECUTED IN CONJUNCTION HEREWITH, OR ANY COURSE OF CONDUCT, COURSE OF DEALING, STATEMENTS (WHETHER VERBAL OR WRITTEN) OR ACTIONS
OF EITHER PARTY. 

  
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	8.	Choice of Law; Venue. The laws of the State of Florida, excluding its choice of law provisions if such laws would result in the application of laws other than
the laws of the State of Florida, shall govern any disputes with respect to this Promissory Note, the validity of this Promissory Note, the construction of its terms, and the interpretation of the rights and duties of Borrower and Lender hereunder.
The forum selected for any proceeding or suit related to a dispute between Borrower and Lender related to this Promissory Note shall be in a federal or state court of competent jurisdiction located in Hillsborough County, Florida. Borrower consents
to said courts’ personal jurisdiction over it and waives any defense, whether asserted by motion or pleading, that Hillsborough County, Florida is an improper or inconvenient venue. 

 

	9.	Notice. Any notice, demand or other communication to Borrower that is permitted or required hereunder shall be given in writing, and shall be deemed to have been
duly delivered (i) when delivered by personal delivery, (ii) three (3) days after being deposited with the United States Postal Service for mailing by first class mail, postage prepaid, certified mail, with return receipt requested
(regardless of whether the return receipt is subsequently received), or (iii) one business day after being deposited with a nationally recognized courier service for overnight delivery; and in each case addressed by Lender to Borrower at the
address for Borrower first listed above, or to such other address as Borrower may notify Lender in writing in conformity with the provisions of this Section. 

 

	10.	Documentary Stamp Taxes. Borrower shall pay all documentary stamp taxes due on the obligation evidenced by this Promissory Note. 

 

	11.	Assignment. Lender may assign all or any portion of this Promissory Note and Lender’s rights thereunder. 

 

	12.	Binding Effect. This Promissory Note shall be binding upon Borrower and its successors and assigns, and shall inure to the benefit of Lender and its successors
and assigns. 

  

	13.	Computation of Time. Whenever the last day for payment of any amount due hereunder shall fall upon Saturday, Sunday or any public or legal holiday, whether
federal or of the State of Florida, Borrower shall have until 5:00 p.m. on the next succeeding regular business day to make such payment. 

 IN WITNESS WHEREOF, Borrower has executed this Promissory Note on the date indicated below. 
  

			
	ORAGENICS, INC.
		
	By:	 	 /s/ Brian Bohunicky

	Name:	 	 Brian Bohunicky

	Title:	 	 Chief Financial Officer

	Date:	 	 December 9, 2011

  
 3Second Supplemental Indenture, dated as of December 8, 2011

 Exhibit 4.1 

SECOND SUPPLEMENTAL INDENTURE 
 This SECOND SUPPLEMENTAL INDENTURE (“Second Supplemental Indenture”), dated as of December 8, 2011, among WCA Waste Corporation, a Delaware corporation (the
“Company”) the Guarantors named therein (as defined in the Indenture referred to herein) and BOKF, NA dba Bank of Texas, as trustee under the Indenture referred to below (the “Trustee”). 

W I T N E S S E T H 
 WHEREAS, the Company has heretofore executed and delivered to the Trustee an indenture, dated as of June 7, 2011 providing for the issuance of 7 1/2% Senior Notes due 2019 (the “Notes”), as amended
and supplemented by the First Supplemental Indenture, dated as of October 12, 2011, among the Company, the Guarantors named therein and the Trustee (the indenture, as so amended and supplemented, being referred to herein as the
“Indenture”); 
 WHEREAS, the Company has requested, and the Guarantors and the Trustee have agreed,
that certain provisions of the Indenture be amended in the manner provided herein; 
 WHEREAS, paragraph (a) of
Section 9.01 permits the Company, the Guarantors and the Trustee to amend or supplement the Indenture, the Subsidiary Guarantees or the Notes to cure any ambiguity, defect or inconsistency without the consent of any Holder of Notes; 

WHEREAS, the Indenture contains an ambiguity, defect or inconsistency requiring an amendment or supplement to cure; 

WHEREAS, paragraph (h) of Section 9.01 permits the Company, the Guarantors and the Trustee to amend or supplement the
Indenture, the Subsidiary Guarantees or the Notes to conform the text of the Indenture or the Notes to any provision of the “Description of Notes” section of the Offering Circular, to the extent that such provision in that
“Description of Notes” was intended to be a verbatim recitation of a provision of the Indenture, the Subsidiary Guarantees or the Notes, without the consent of any Holder of Notes; 

WHEREAS, the Offering Circular contains certain text that was intended to be recited verbatim in the Indenture; 

WHEREAS, the text of the provision entitled “—Covenants — Change of Control” of the Description of Notes was intended
as a verbatim recitation of the text of Section 4.14 of the Indenture; 
 WHEREAS, currently, the text of Section 4.14
of the Indenture does not conform to the text of the provision entitled “—Covenants — Change of Control” of the Description of Notes; and 

  
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 WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to
execute and deliver this Second Supplemental Indenture. 
 NOW, THEREFORE, in consideration of the foregoing and for other good
and valuable consideration, the receipt of which is hereby acknowledged, the Company, the Guarantors and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows: 

Section 1.01. Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them
in the Indenture. 
 Section 1.02. Amendment to Optional Redemption Provision. Section 3.07 of the Indenture
is hereby amended by adding the following paragraph immediately following paragraph (e) thereof: 
 “(f) The Company
may also redeem the Notes pursuant to Section 4.14(e) of this Indenture.” 
 Section 1.03. Amendment to
Change of Control Covenant. Section 4.14 of the Indenture is hereby amended by adding the following paragraphs immediately following paragraph (c) thereof: 
 “(d) A Change of Control Offer may be made in advance of a Change of Control, and conditioned upon the occurrence of such Change of Control, if a definitive agreement is in place for the Change of
Control at the time of making the Change of Control Offer. Notes repurchased by the Company pursuant to a Change of Control Offer will have the status of Notes issued but not outstanding or will be retired and cancelled, at the Company’s
option. Notes purchased by a third party pursuant to the preceding paragraph will have the status of Notes issued and outstanding. 
 (e) In the event that Holders of not less than 90% of the aggregate principal amount of the outstanding Notes accept a Change of Control Offer and the Company purchases all of the Notes held by such
Holders, the Company will have the right, upon not less than 30 nor more than 60 days’ prior notice, given not more than 30 days following the purchase pursuant to the Change of Control Offer described in Section 4.14(a) hereof, to redeem
all of the Notes that remain outstanding following such purchase at a redemption price equal to the Change of Control Payment plus, to the extent not included in the Change of Control Payment, accrued and unpaid interest and Liquidated
Damages, if any, on the Notes that remain outstanding, to the date of redemption (subject to the right of Holders on the relevant record date to receive interest due on the relevant interest payment date).” 

Section 1.04. Amendment to Article 9. 
 Section 9.02 of the Indenture is hereby amended by replacing each reference to Section 4.15 contained therein with a reference to Section 4.14. 

Section 1.05. Representations and Warranties of the Company and the Guarantors. The Company and the Guarantors represent
and warrant as follows: 

  
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 (a) The omission of that language from the text of the Indenture, as set forth in Sections 2
and 3 hereof and which is included in the Offering Circular, is a defect requiring an amendment or supplement to cure pursuant to Section 9.01(a) of the Indenture; and 
 (b) The Company and the Guarantors represent and warrant that the text of the provision entitled “—Covenants — Change of Control” of the Description of Notes was intended as a verbatim
recitation of the text of Section 4.14 of the Indenture. 
 Section 1.06. NEW YORK LAW TO
GOVERN. THE LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS SECOND SUPPLEMENTAL INDENTURE. 
 Section 1.07. Counterparts. The parties may sign any number of copies of this Second Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the
same agreement. 
 Section 1.08. Effect of Headings. The Section headings herein are for convenience only and
shall not affect the construction hereof. 
 Section 1.09. The Trustee. The Trustee shall not be responsible in
any manner whatsoever for or in respect of the validity or sufficiency of this Second Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Guarantors and the Company. 

  
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 IN WITNESS WHEREOF, the parties hereto have caused this Second Supplemental Indenture to be
duly executed and attested, all as of the date first above written. 
  

			
	 WCA WASTE CORPORATION

		
	 By:
	 	/s/ Jerome M. Kruszka
	 Name:
	 	Jerome M. Kruszka
	 Title:
	 	President and Chief Operating Officer

 [Signature Page to Second Supplemental Indenture] 

 
			
	GUARANTORS
		
		 	 American Waste, LLC

		 	Boxer Realty Redevelopment, LLC
		 	Burnt Poplar Transfer, L.L.C.
		 	Champion City Recovery, LLC
		 	Crest Road Recycling, LLC
		 	Eagle Ridge Landfill, LLC
		 	Emerald Waste Services, LLC
		 	EWS Central Florida Hauling, LLC
		 	Material Recovery, LLC
		 	Material Reclamation, LLC
		 	N.E. Land Fill, LLC
		 	New Amsterdam & Seneca Railroad Company, LLC
		 	Pauls Valley Landfill, LLC
		 	Sooner Waste, L.L.C.
		 	Sunny Farms Landfill, LLC
		 	Texas Environmental Waste Services, LLC
		 	Transit Waste, LLC
		 	TransLift, LLC
		 	Waste Corporation of Arkansas, LLC
		 	Waste Corporation of Kansas, Inc.
		 	Waste Corporation of Missouri, Inc.
		 	Waste Corporation of Tennessee, Inc.
		 	WCA Capital, Inc.
		 	WCA Holdings Corporation
		 	WCA Management Limited, Inc.
		 	WCA Management General, Inc.
		 	WCA of Alabama, L.L.C.
		 	WCA of Central Florida, Inc.
		 	WCA of Chickasha, Inc.
		 	WCA of Florida, Inc.
		 	WCA of High Point, LLC
		 	WCA of Massachusetts, LLC
		 	WCA of Mississippi, LLC
		 	WCA of North Carolina, LLC
		 	WCA of Ohio, LLC
		 	WCA of Oklahoma, LLC
		 	WCA of St. Lucie, LLC
		 	WCA Shiloh Landfill, L.L.C.
		 	WCA Texas Management General, Inc.
		 	WCA Wake Transfer Station, LLC
		 	WCA Waste Systems, Inc.

 [Signature Page to Second Supplemental Indenture] 

 
			
		 	WRH Gainesville Holdings, LLC
		 	WRH Gainesville, LLC
		 	WRH Orange City, LLC

  

			
	By:	 	/s/ Tom J. Fatjo, III
		 	Tom J. Fatjo, III
		 	Vice President
	
	WCA Management Company, L.P.
		
	By:	 	WCA Management General, Inc., its sole general partner
		
	By:	 	/s/ Tom J. Fatjo, III
		 	Tom J. Fatjo, III, Vice President
	
	Waste Corporation of Texas, L.P.; Fort Bend Regional Landfill L.P. and Ruffino Hills Transfer Station, L.P.
		
	By:	 	WCA Texas Management General, Inc., its sole general partner
		
	By:	 	/s/ Tom J. Fatjo, III
		 	Tom J. Fatjo, III, Vice President

 [Signature Page to Second Supplemental Indenture] 

 
			
	BOKF, NA dba Bank of Texas,
		 	as Trustee
		
	By:	 	 /s/ Ronda L. Parman

		 	  

		 	Ronda L. Parman
		 	Vice President

 [Signature Page to Second Supplemental Indenture]

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