Document:

Exhibit 10.17.3

EXHIBIT 10.17.3

	 	 	 
	TO:

	 	Casie Ecology Oil Salvage, Inc., MidAtlantic Recycling
Technologies, Inc., Rezultz, Inc.
	FROM:

	 	Susquehanna Bank
	DATE:

	 	November 13, 2008
	RE:

	 	Interest Rate Swap
	REF NO.:

	 	CFSUSQHANNA2008111302

The purpose of this communication is to set forth the terms and conditions of the Interest Rate
Swap Transaction entered into on the Trade Date referred to below (the “Interest Rate Swap
Transaction”), between Susquehanna Bank (“Party A” or “we”) and Casie Ecology Oil Salvage, Inc.,
MidAtlantic Recycling Technologies, Inc. and Rezultz, Inc. (“Party B” or “you”). This
communication constitutes a “Confirmation” as referred to in the Interest Rate Swap Agreement
specified below.

This Confirmation incorporates the definitions and provisions contained in the 2000 ISDA
Definitions as published by the International Swaps and Derivatives Association, Inc. (the
“Definitions”). In the event of any inconsistency between the Definitions and this Confirmation,
this Confirmation will govern.

This Confirmation is subject to and incorporates the terms of the ISDA Master Agreement and
Schedule dated as of November 12, 2008 between Party A and Party B (the “Interest Rate Swap
Agreement). All provisions contained in, or incorporated by reference to, the Interest Rate Swap
Agreement shall govern this Confirmation except as expressly modified below. In the event of any
inconsistency between the provisions of that Interest Rate Swap Agreement and this Confirmation,
this Confirmation shall prevail for the purpose of this Interest Rate Swap Transaction.

The terms of the particular Interest Rate Swap Transaction to which this communication relates are
as follows:

	 	 	 
	Notional Amount:

	 	USD 8,000,000.00 for the initial
Calculation Period and amortizing
according to the attached Notional
Schedule.
	 
	 	 
	Trade Date:

	 	November 13, 2008
	 
	 	 
	Effective Date:

	 	November 13, 2008
	 
	 	 
	Termination Date:

	 	November 15, 2015, with No Adjustment to
Period End Dates.
	 
	 	 
	Fixed Amounts:
	 	 
	 
	 	 
	Fixed Rate Payer:

	 	Party B
	 
	 	 
	Fixed Rate:

	 	6.10%

 

 

 

	 	 	 
	Fixed Rate Day Count Fraction:

	 	Act/360
	 
	 	 
	Fixed Rate Calculation Periods:

	 	From and including the fifteenth (15th) day of each month to
but excluding the fifteenth (15th) day of the following month starting with the Effective
Date continuing until the Termination Date, with No Adjustment to Period End Dates.
	 
	 	 
	Fixed Rate Payer Payment Dates:

	 	Fifteenth (15th) calendar day of each month beginning with
December 15, 2008, continuing until the Termination Date, subject to adjustment in
accordance with the Following Business Day Convention.
	 
	 	 
	Floating Amounts:
	 	 
	 
	 	 
	Floating Rate Payer:

	 	Party A
	 
	 	 
	Floating Rate Calculation Periods:

	 	From and including the fifteenth (15th) day of each month to
but excluding the fifteenth (15th) day of the following month starting with the Effective
Date continuing until the Termination Date, with No Adjustment to Period End Dates.
	 
	 	 
	Floating Rate Payer Payment Dates:

	 	Fifteenth (15th) calendar day of each month beginning with
December 15, 2008, continuing until the Termination Date, subject to adjustment in
accordance with the Following Business Day Convention
	 
	 	 
	Floating Rate Option:

	 	USD-LIBOR-BBA, however the reference to “two London Banking Days” in the
third line of the definition of “USD-LIBOR-BBA” as published in Section 7.1.(w).(xvii) of
the Annex to the 2000 ISDA Definitions is replaced by “one London Banking Day”.
	 
	 	 
	Designated Maturity:

	 	1 Month (No interpolation)
	 
	 	 
	Floating Rate Day Count:

	 	Act/360
	 
	 	 
	Floating Rate Spread:

	 	250.0 bps (plus) (2.50%)
	 
	 	 
	Initial Rate Setting (excluding spread):

	 	1.40875%
	 
	 	 
	Reset Dates:

	 	First day of each Floating Rate Calculation Period, with No Adjustment
	 
	 	 
	Compounding:

	 	Inapplicable

 

Page 2 of 3

 

	 	 	 
	Business Days:

	 	New York
	 
	 	 
	Calculation Agent:

	 	Party A
	 
	 	 
	Governing Law:

	 	New York
	 
	 	 
	Payment Instructions Parties A and B:

	 	Party A will debit/credit the Reserve Account of Party B for payment.
	 
	 	 
	Notice to Party B:

	 	Brent Kopenhaver,
	 

	 	Chairman of the Board and Chief Financial Officer
	 

	 	c/o Pure Earth, Inc.
	 

	 	3209 North Mill Rd.
	 

	 	Vineland, NJ 08360
	 

	 	Facsimile No. 215-639-8756

Please confirm that the foregoing correctly sets forth the terms of our agreement with respect to
the Interest Rate Swap Transaction by signing in the space provided below and sending a copy of the
executed Confirmation to Susquehanna Bank, Two Aquarium Drive, Camden, NJ 08103, Attention: Hugh
J. Arbuthnot, Facsimile number 856.756.7825.

	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Susquehanna Bank	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	By:

	 	/s/ Hugh J. Arbuthnot	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	Name: Hugh J. Arbuthnot	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	Title: Commercial Relationship Manager	 	 	 	 	 	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Casie Ecology Oil Salvage, Inc.	 	 	 	Casie Ecology Oil Salvage, Inc.
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	By:

	 	/s/ Gregory Call
	 	 	 	By:
	 	/s/ Brent Kopenhaver	 	 	 	 	 	 
	 

	 	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	Name: Gregory Call
	 	 	 	 	 	Name: Brent Kopenhaver	 	 	 	 	 	 
	 

	 	Title: President
	 	 	 	 	 	Title: Treasurer	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	MidAtlantic Recycling Technologies, Inc.	 	 	 	MidAtlantic Recycling Technologies, Inc.
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	By:

	 	/s/ Gregory Call
	 	 	 	By:
	 	/s/ Brent Kopenhaver	 	 	 	 	 	 
	 

	 	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	Name: Gregory Call
	 	 	 	 	 	Name: Brent Kopenhaver	 	 	 	 	 	 
	 

	 	Title: President
	 	 	 	 	 	Title: Treasurer	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	Rezultz, Inc	 	 	 	Rezultz, Inc
	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 
	By:

	 	/s/ Gregory Call
	 	 	 	By:
	 	/s/ Brent Kopenhaver	 	 	 	 	 	 
	 

	 	 
	 	 	 	 	 	 	 	 	 	 	 	 
	 

	 	Name: Gregory Call
	 	 	 	 	 	Name: Brent Kopenhaver	 	 	 	 	 	 
	 

	 	Title: President
	 	 	 	 	 	Title: Treasurer
	 	 	 	 	 	 

 

Page 3 of 3Exhibit 4.13

Exhibit

4.13

FORM OF CONVERTIBLE NOTE

THE SECURITIES REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”) OR APPLICABLE STATE
SECURITIES LAWS, AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO
AN EFFECTIVE REGISTRATION STATEMENT FOR SUCH SECURITIES UNDER THE SECURITIES ACT
AND APPLICABLE STATE SECURITIES LAWS OR PURSUANT TO AN OPINION OF COUNSEL
REASONABLY SATISFACTORY TO THE COMPANY THAT THERE IS AN AVAILABLE EXEMPTION FROM
THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.

			
	 	 	 
	Amount: $XX,XXX.XX
	 	Irvine, California
	 
	 	Date:                     , 200_

FOR VALUE RECEIVED, BIOLARGO, INC., a corporation organized under the laws of the state of
Delaware (“Issuer”), promises to pay to the order of
 _____ 
xxxxxx
 _____ 
(hereafter,
together with any subsequent holder hereof, called “Holder”), at its office, at “Holder’s
Address” (as that term is defined below), or at such other place as Holder may direct, the “Amount”
noted above (the “Loan Amount”), payable on October 15, 2011, or at an earlier date as provided
herein (the “Maturity Date”). This convertible note is duly authorized issue of the Issuer,
issued on the “Date” noted (the “Issuance Date”), and designated as its Convertible Note
due October 15, 2011 (the “Note”).

The Issuer agrees to pay interest on the unpaid principal amount of the Loan Amount from time
to time outstanding hereunder at the following rates per year, compounded annually: (i) before
maturity of the Loan Amount, whether by acceleration or otherwise, at the rate per annum equal to
ten percent (10%); (ii) after the maturity of the Loan Amount, whether by acceleration or
otherwise, until paid, at a rate per annum equal to fifteen percent (15%).

Payments of both principal and interest are to be made in immediately available funds in
lawful money of the United States of America, or in Common Stock of the Issuer as set forth below.

Accrual of interest shall commence as of the Issuance Date. Interest will accrue monthly and
be paid annually on the Note on October 15 (pro-rated based on the actual number of days elapsed in
a 365-day year), such interest to be paid, at the Company’s option, in cash or in that number of
shares of Common Stock of the Issuer (the “Common Stock”) at a price per share equal to the
average closing price of the Company’s common stock for the 20 trading days preceding a given
interest due date Unless otherwise agreed in writing by both parties hereto, the interest so
payable will be paid to the person in whose name this Note (or one or more predecessor Notes) is
registered on the records of the Issuer regarding registration and transfers of the Note (the
“Note Register”), provided, however, that the Issuer’s obligation to a transferee of this
Note arises only if such transfer, sale or other disposition is made in accordance with the terms
and conditions contained in this Note and the Subscription Agreement (the “Agreement”) that
the Holder executed at the time of making an investment in the Issuer.

The Note is subject to the following additional provisions:

1. The Issuer shall be entitled to withhold from all payments of principal and/or interest of
this Note any amounts required to be withheld under the applicable provisions of the Internal
Revenue Code of 1986, as amended, or other applicable laws at the time of such payments.

 

- 1 -

 

2. This Note has been issued subject to investment representations of the original Holder
hereof and may be transferred or exchanged only in compliance with the Securities Act and
applicable state securities laws and in compliance with the restrictions on transfer provided in
the Agreement. Prior to the
due presentment for such transfer of this Note, the Issuer and any agent of the Issuer may
treat the person in whose name this Note is duly registered in the Note Register as the owner
hereof for the purpose of receiving payment as herein provided and all other purposes, whether or
not this Note is overdue, and neither the Issuer nor any such agent shall be affected by notice to
the contrary. The transferee shall be bound, as the original Holder by the same representations and
terms described herein and under the Agreement.

3. The Holder may, at its option, at any time convert the principal amount of this Note or any
portion thereof, and any accrued and unpaid interest thereon, into such number of shares of fully
paid and non-assessable Common Stock of the Issuer (“Conversion Shares”) as is obtained by
dividing the Loan Amount by $1.00 (“Conversion Price”). The right to convert the Note may
be exercised by the Issuer by telecopying, mailing (via first class mail, postage prepaid) or
personally delivering an executed and completed notice of conversion (the “Notice of Voluntary
Conversion”) to the Issuer. The business day (a “Business Day”) on which a Notice of
Voluntary Conversion is delivered in accordance with the provisions hereof shall be deemed the
“Voluntary Conversion Date”. The Issuer will transmit the certificates representing
Conversion Shares issuable upon such conversion of the Note (together with the certificates
representing the Note not so converted) to the Holder via express courier, by electronic transfer
(if applicable) or otherwise, within ten Business Days after the later to occur of (i) the
Voluntary Conversion Date or (ii) the Business Day on which the Issuer has received from the Holder
the original Note being so converted.

4. The Issuer may, at its option, (i) on or after April 30, 2009, if the Company has received
one or more written firm commitments, or has closed on one or more transactions, or a combination
of the foregoing, of at least $3 million gross proceeds of equity or debt; or (ii) on the Maturity
Date, require the Holder to convert the Note or any portion thereof, and any accrued and unpaid
interest thereon, into such number of Conversion Shares as is obtained by dividing the Loan Amount
by the Conversion Price. The obligation of the Holder to convert the Note may be exercised by the
Company by telecopying, mailing (via first class mail, postage prepaid) or personally delivering an
executed and completed notice of conversion (the “Notice of Mandatory Conversion”) to the
Holder’s Address maintained in the Note Register. The Holder covenants and agrees to acknowledge a
Notice of Mandatory Conversion in writing by completing, dating and signing such Notice of
Mandatory Conversion and returning it to the Company by telecopier, first class mail (postage
prepaid) or personal delivery (the “Holder Acknowledgment Date”). The business day on which a
Notice of Mandatory Conversion is delivered in accordance with the provisions hereof shall be
deemed the “Mandatory Conversion Date”. The Issuer will transmit the certificates
representing Conversion Shares issuable upon such conversion of the Note (together with the
certificates representing any portion of the Note not so converted) to the Holder via express
courier, by electronic transfer (if applicable) or otherwise within ten Business Days after the
later to occur of (i) the Holder Acknowledgment Date or (ii) the date that the Issuer has received
from the Holder the original Note being so converted.

5. The principal amount of this Note, and any accrued interest thereon, shall be reduced as
per that principal amount indicated on the Notice of Voluntary Conversion or Notice of Mandatory
Conversion, as the case may be, upon the proper receipt by the Holder of such Conversion Shares due
upon such Notice of Voluntary Conversion or Notice of Mandatory Conversion.

6. The number of Conversion Shares shall be adjusted as follows. If the Issuer shall at any
time subdivide its outstanding shares of Common Stock into a greater number of shares of Common
Stock, the number of Conversion Shares in effect immediately prior to such subdivision shall be
proportionately increased, and conversely, in case the outstanding shares of Common Stock shall be
combined into a smaller number of shares of Common Stock, the number of Conversion Shares in effect
immediately prior to such subdivision shall be proportionately decreased.

7. No provision of this Note shall alter or impair the obligation of the Issuer, which is
absolute and unconditional, upon an Event of Default (as defined below), to pay the principal of,
and interest on this Note at the place, time, and rate, and in the coin or currency herein
prescribed.

 

- 2 -

 

8. Events of Default. Each of the following occurrences is hereby defined as an “Event of
Default”:

a. Nonpayment. The Issuer shall fail to make any payment of principal,
interest, or other amounts payable hereunder when and as due; or

b. Dissolutions, etc. The Issuer or any subsidiary shall fail to comply with
any provision concerning its existence or any prohibition against dissolution, liquidation,
merger, consolidation or sale of assets; or

c. Noncompliance with this Agreement. The Issuer shall fail to comply in any
material respect with any provision hereof, which failure does not otherwise constitute an
Event of Default, and such failure shall continue for ten (10) days after the occurrence of
such failure; or

d. Bankruptcy. Any bankruptcy, insolvency, reorganization, arrangement,
readjustment, liquidation, dissolution, or similar proceeding, domestic or foreign, is
instituted by or against the Issuer or any of its subsidiaries, or the Issuer or any of its
subsidiaries shall take any step toward, or to authorize, such a proceeding; or

e. Insolvency. The Issuer shall make a general assignment for the benefit of
its creditors, shall enter into any composition or similar agreement, or shall suspend the
transaction of all or a substantial portion of its usual business.

9. If one or more “Events of Default” shall occur, then, or at any time thereafter, and in
each and every such case, unless such Event of Default shall have been waived in writing by the
Holder (which waiver shall not be deemed to be a waiver of any subsequent default) or cured as
provided herein, at the option of the Holder, and in the Holder’s sole discretion, the Holder may
elect to consider this Note (and all interest through such date) immediately due and payable. In
order to so elect, the Holder must deliver written notice of the election and the amount due to the
Issuer via certified mail, return receipt requested, at the Issuer’s address as set forth herein
(or any other address provided to the Holder), and thereafter the Issuer shall have ten business
days upon receipt to cure the Event of Default, pay the Note, or convert the amount due on the Note
pursuant to the conversion formula set forth above. It is agreed that in the event of such action,
such Holder shall be entitled to receive all reasonable fees, costs and expenses incurred,
including without limitation such reasonable fees and expenses of attorneys. The parties
acknowledge that a change in control of the Issuer shall not be deemed to be an Event of Default as
set forth herein.

10. In case any provision of this Note is held by a court of competent jurisdiction to be
excessive in scope or otherwise invalid or unenforceable, such provision shall be adjusted rather
than voided, if possible, so that it is enforceable to the maximum extent possible, and the
validity and enforceability of the remaining provisions of this Note will not in any way be
affected or impaired thereby.

 

- 3 -

 

11. This Note does not entitle the Holder hereof to any voting rights or other rights as a
stockholder of the Issuer prior to the conversion into Common Stock thereof, except as provided by
applicable law. If, however, at the time of the surrender of this Note and conversion the Holder
hereof shall be entitled to convert this Note, the Conversion Shares so issued shall be and be
deemed to be issued to such holder as the record owner of such shares as of the close of business
on the Conversion Date.

12. This Note and all other notes in this series may be subordinated to up to $10 million of
additional debt financing that the Issuer may incur prior to the Maturity Date.

IN WITNESS WHEREOF, the Issuer has caused this Note to be duly executed by an officer
thereunto duly authorized.

	 	 	 	 	 	 	 	 	 
	 	 	BIOLARGO, INC.	 	 
	 
	 	 	 	 	 	 	 	 
	 	 	By:	 	XXXXXX	 	 
	 	 	 	 	 	 	 
	 	 	 	 	Name: Dennis Calvert, President	 	 
	 
	 	 	 	 	 	 	 	 
	 	 	ACCEPTED:	 	 
	 
	 	 	 	 	 	 	 	 
	 	 	Signature:	 	 	 	 
	 

	 	 	 	 	 

	 	 
	 	 	Print Name:	 	 	 	 
	 

	 	 	 	 	 

	 	 
	 	 	Holder’s Address:	 	 	 
	 

	 	 	 	 	 	 

	 	 
	 	 	 	 	 
	 	 	 	 	 

 

- 4 -

 

NOTICE OF VOLUNTARY CONVERSION

(To be Executed by the Registered Holder in order to convert the Note)

The undersigned hereby irrevocably elects to convert
$_____ 
of the principal amount of
the above Note, and $_____ 
of accrued and unpaid interest, into
 _____ 
Shares of Common
Stock of BioLargo, Inc. (the “Company”) according to the conditions hereof, as of the date written
below.

The undersigned represents and warrants to the Company that, as of the date hereof, the
undersigned is an “accredited investor” as that term is defined in Rule 501(a) of Regulation D
under the Securities Exchange Act of 1934, as amended.

	 	 	 	 	 	 	 	 	 
	Date of Voluntary Conversion:                     

	 	Signature:	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 

	 	Print Name:	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 	 	Holder’s Address:	 	 	 	 
	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 	 	Social Security No.:	 	 
	 

	 	 	 	 	 	 

	 	 
	 	 	ACCEPTED:	 	 
	 
	 	 	 	 	 	 	 	 
	 	 	BIOLARGO, INC.	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	By (Signature)	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	Print Name:	 	 	 	 	 	 
	 	 	 	 	 	 	 
	 
	 	 	 	 	 	 	 	 
	 

	 	Title:	 	 	 	 	 	 
	 	 	 	 	 	 	 

 

- 1 -

 

NOTICE OF MANDATORY CONVERSION

(To be Executed by the Company in order to required the Holder to convert the Note)

The undersigned hereby notifies you of its irrevocably election to require you to convert
$_____ 
of the principal amount of the above Note, and
$_____ 
of accrued and unpaid
interest, into
 _____ 
Shares of Common Stock of BioLargo, Inc. according to the conditions
hereof, as of the date written below.

	 	 	 	 	 	 	 
	Date of Mandatory Conversion:                     	 	BIOLARGO, INC.	 	 
	 
	 	 	 	 	 	 
	 

	 	By (Signature)	 	 	 	 
	 

	 	 	 	 

	 	 
	 

	 	Print Name:	 	 	 	 
	 

	 	 	 	 

	 	 
	 

	 	Title:	 	 	 	 
	 

	 	 	 	 

	 	 

 

- 2 -

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