BION ENVIRONMENTAL TECHNOLOGIES INC
SC 13D, 2000-05-01
MISC INDUSTRIAL & COMMERCIAL MACHINERY & EQUIPMENT
Previous: BIOSPECIFICS TECHNOLOGIES CORP, NT 10-K, 2000-05-01
Next: LASER PACIFIC MEDIA CORPORATION, DEF 14A, 2000-05-01




                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D
                                 (Rule 13d-101)

             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
            TO RULE 13D-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO
                                  RULE 13D-2(a)
                              (Amendment No. __)(1)

                      BION ENVIRONMENTAL TECHNOLOGIES, INC.
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                            NO PAR VALUE COMMON STOCK
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    09061Q109
                                    ---------
                                 (CUSIP Number)

                                             Copy to:

David Mitchell                               Michael J. Emont
D2 Co., LLC                                  RubinBaum LLP
c/o Mitchell & Co.                           30 Rockefeller Plaza
681 Fifth Avenue, 9th Floor                  29th Floor
New York, New York 10022                     New York, New York 10112
- -------------------------------------------------------------------------------
                 (Name, Address and Telephone Number of Persons
                Authorized to Receive Notices and Communications)

                                December 23, 1999
- -------------------------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box
[ ].

NOTE:  Schedules  filed in paper format shall include a signed original and five
copies of this  schedule,  including all  exhibits.  See Rule 13d-7(b) for other
parties to whom copies are to be sent.

(1) The  remainder  of this  cover  page  shall be  filled  out for a  reporting
person's  initial  filing on this  form with  respect  to the  subject  class of
securities,  and for any subsequent amendment containing information which would
alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).
                        (Continued on following page(s))

                             - Page 1 of 10 Pages -

<PAGE>

CUSIP No. 09061Q109                    13D                    Page 2 of 10 Pages
================================================================================
 1       NAME OF REPORTING PERSONS

                                    D2 Co., LLC

         I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
                                                               13-4113345
- --------------------------------------------------------------------------------
 2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                      (a) [ ]
                                                                      (b) [ ]
- --------------------------------------------------------------------------------
 3       SEC USE ONLY
- --------------------------------------------------------------------------------
 4       SOURCE OF FUNDS*
                                       OO
- --------------------------------------------------------------------------------
 5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
         PURSUANT TO ITEM 2(d) OR 2(e)                                    [ ]
- --------------------------------------------------------------------------------
 6       CITIZENSHIP OR PLACE OF ORGANIZATION                        Delaware
- --------------------------------------------------------------------------------
                   7    SOLE VOTING POWER
                        5,030,000 shares                                29.9%
      Number of    -------------------------------------------------------------
       Shares      8    SHARED VOTING POWER
    Beneficially        0 shares                                           0%
      Owned By     -------------------------------------------------------------
        Each       9    SOLE DISPOSITIVE POWER
      Reporting         5,030,000 shares                                29.9%
       Person      -------------------------------------------------------------
        With       10   SHARED DISPOSITIVE POWER
                        0 shares                                           0%
- --------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
         PERSON
                               5,030,000 shares
- --------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*                                                [ ]
- --------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                                                                      29.9%
- --------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON*
                                       OO
================================================================================

================================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>

CUSIP No. 09061Q10                      13D                   Page 3 of 10 Pages
================================================================================
 1       NAME OF REPORTING PERSONS

                                  David Mitchell

         I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
- --------------------------------------------------------------------------------
 2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                      (a) [ ]
                                                                      (b) [ ]
- --------------------------------------------------------------------------------
 3       SEC USE ONLY
- --------------------------------------------------------------------------------
 4       SOURCE OF FUNDS*
                                      OO
- --------------------------------------------------------------------------------
 5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
         PURSUANT TO ITEM 2(d) OR 2(e)                                    [ ]
- --------------------------------------------------------------------------------
 6       CITIZENSHIP OR PLACE OF ORGANIZATION
- --------------------------------------------------------------------------------
                   7   SOLE VOTING POWER
                       5,030,000 shares                                 29.9%
      Number of    -------------------------------------------------------------
       Shares      8   SHARED VOTING POWER
    Beneficially       0 shares                                            0%
      Owned By     -------------------------------------------------------------
        Each       9   SOLE DISPOSITIVE POWER
      Reporting        5,030,000 shares                                 29.9%
       Person      -------------------------------------------------------------
        With       10  SHARED DISPOSITIVE POWER
                       0 shares                                            0%
- --------------------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
         PERSON
                                  5,030,000 shares
- --------------------------------------------------------------------------------
12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES*                                                  [ ]
- --------------------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
                                                                        29.9%
- --------------------------------------------------------------------------------
14       TYPE OF REPORTING PERSON*
                                      IN
================================================================================

================================================================================
                      *SEE INSTRUCTIONS BEFORE FILLING OUT!


<PAGE>

      This  statement  on Schedule  13D,  dated April 27,  2000,  relates to the
beneficial  ownership of D2 Co., LLC and its sole member David Mitchell,  of the
Common Stock of Bion Environmental Technologies, Inc.

ITEM 1. Security and Issuer

      The  title of the  class of  equity  securities  to which  this  statement
relates is Common Stock,  no par value per share (the "Common  Stock"),  of Bion
Environmental  Technologies,   Inc.,  a  Colorado  corporation,  which  has  its
principal  executive  offices at 555 17th Street,  Suite 3310  Denver,  Colorado
80202 (the "Issuer").

ITEM 2. Identity and Background

      The information set forth on Annex 2a is given with respect to (1) D2 Co.,
LLC ("D2 Co."), a Delaware limited liability company and (2) David Mitchell, the
sole member of D2 Co. On Annex 2a,  column (a) indicates the name of each person
or entity;  column (b) indicates  the address of the principal  business and the
address of the principal  office of each entity or the business  address of each
natural person;  column (c) indicates each such entity's  principal  business or
such natural person's present  principal  occupation or employment and the name,
principal business and address of any corporation or other organization in which
such employment is conducted as applicable; column (d) indicates whether or not,
during the last five years, such person, or any executive  officer,  director or
controlling person of such person,  has been convicted in a criminal  proceeding
(excluding  traffic  violations or similar  misdemeanors) and, if so, the dates,
nature of conviction,  name and location of court, and penalty imposed, or other
disposition of the case;  column (e) indicates  whether or not,  during the last
five years,  such person,  or any  executive  officer,  director or  controlling
person  of such  person  was a party  to a civil  proceeding  of a  judicial  or
administrative body of competent jurisdiction and as a result of such proceeding
was or is subject  to a  judgement,  decree or a final  order  enjoining  future
violations  of, or prohibiting  or mandating  activities  subject to, Federal or
state  securities  laws or finding any violation with respect to such laws, and,
if so,  identifies  and describes such  proceedings  and summarizes the terms of
such judgement,  decree or final order; column (f) indicates, in the case of any
natural person, the citizenship of such person.

ITEM 3. Source and Amount of Funds or Other Consideration

      The funds used by D2 Co. to  purchase  the Bridge  Note and  Warrants  (as
defined below) described  herein  consisted of the capital  contributions of its
member, a non-recourse promissory note and its general working capital.

ITEM 4. Purpose of Transaction

      On December 23, 1999,  D2 Co.  entered into a Warrant  Purchase  Agreement
with the Issuer (the "Purchase  Agreement"),  pursuant to which D2 Co. purchased
warrants to purchase


                             - Page 4 of 10 Pages -

<PAGE>

2,500,000  shares of the Issuer's  Common Stock (the "Purchase  Warrant") for an
aggregate  purchase  price of  $1,000,000  ($500,000  in cash and  $500,000 in a
non-recourse  promissory note).  Concurrently  therewith,  D2 Co. entered into a
Management Agreement with the Issuer (the "Management  Agreement"),  pursuant to
which D2 Co. will provide the Issuer with  specific  management  and  consulting
services.  As  compensation  to D2 Co. for such services,  D2 Co. will receive a
management  fee of $240,000 per year,  payable in the  Issuer's  Common Stock or
cash. In addition,  on January 1, 2000, D2 Co. was issued an additional  warrant
to purchase  2,500,000 shares of Common Stock (the  "Management  Warrant" ). The
Issuer and D2Co. have agreed that, for the time being, the monthly  installments
of the management fee shall be added to the principal balance of the Bridge Note
described below. On March 31, 2000, D2 Co. participated in a bridge financing of
the Issuer and for an aggregate of $1,500 purchased a bridge warrant to purchase
30,000 shares of the Issuer's Common Stock (the "Bridge  Warrant," and, together
with the Purchase Warrant and the Management Warrant,  the "Warrants"),  as well
as a bridge note for $100,000 (the "Bridge  Note").  If the Issuer issues any of
its  capital  stock or an  instrument  that is  convertible  into  shares of its
capital stock, for an aggregate purchase price of at least $5,000,000,  pursuant
to a public or private offering (an  "Offering"),  then, at the Issuer's option,
either (i) the Issuer shall prepay the Bridge Note,  without penalty or premium,
no later than 30 days following the closing of the Offering,  or (ii) the Bridge
Note shall be converted ("Conversion") into such number of shares of the capital
stock of the  Issuer as is equal to the  Conversion  Amount (as  defined  below)
divided by the then current  Conversion Price (as defined below). The Conversion
Amount  shall be the  aggregate  principal  value of the  Bridge  Note  plus any
accrued and unpaid  interest.  The Conversion  Price shall be the price paid for
one share of capital stock issued in the Offering.

      The Purchase  Warrant  issued to D2 Co. is exercisable at a price of $1.75
per share at any time  before  December  31,  2004.  The  Management  Warrant is
exercisable  at a price of $2.50 per share at any time  before June 30, 2004 and
the  Bridge  Warrant is  exercisable  at a price of $2.375 per share at any time
before  December  31, 2004.  The  exercise  price and number of shares of Common
Stock  issuable  upon  exercise of such  Warrants are subject to  adjustment  as
provided in such Warrants.

      D2 Co. purchased the Bridge Note and Warrants for the purpose of obtaining
a significant  investment in the Issuer.  In connection with such investment and
the Management  Agreement,  D2 Co. obtained the right to name three designees to
the board of  directors  of the  Issuer,  of which it has  designated  two,  and
obtained  certain other rights.  See ITEM 6 below.  Such designees of D2 Co. are
Mr. David  Mitchell  and Mr.  Salvatore  J. Zizza,  who also  purchased a bridge
warrant in the Offering to  purchase15,000  shares of Common Stock. See Annex 2a
hereto for certain  information  with respect to Messrs.  Mitchell and Zizza. In
addition,  upon the successful  competition of a specified funding  transaction,
which is estimated to be $3,000,000, D2 Co. shall have the right to nominate for
election at the next annual meeting one additional director.


                             - Page 5 of 10 Pages -

<PAGE>

ITEM 5. Interests in Securities of the Issuer.

            (a) The  following  sets forth the aggregate  number and  percentage
(based on  11,807,660  shares of Common Stock  outstanding,  as set forth in the
Issuer's Form 10-QSB for the quarterly  period ended  December 31, 2000 as filed
with the Securities  and Exchange  Commission on February 14, 2000) of shares of
Common Stock owned beneficially by D2 Co., as of April 28, 2000:

                                 Shares of              Percentage of Shares
                               Common Stock               of Common Stock
Name                        Beneficially Owned           Beneficially Owned
- ----                        ------------------           ------------------
D2 Co.                       5,030,000 shares                   29.9%
David Mitchell               5,030,000 shares                   29.9%

      The 5,030,000 shares of Common Stock  beneficially owned by D2 Co. consist
of (i) 2,500,000  shares of Common Stock  issuable upon exercise of the Purchase
Warrant owned by D2 Co.,  (ii)  2,500,000  shares of Common Stock  issuable upon
exercise of the  Management  Warrant  owned by D2 Co. and (iii) 30,000 shares of
Common Stock  issuable upon exercise of the Bridge  Warrant  purchased by D2 Co.
Not included in such number are (A) the shares of capital  stock  issuable  upon
Conversion of the Bridge Note, as it is not know when or if the Bridge Note will
be converted and (B) the 15,000 shares of Common Stock issuable upon exercise of
Mr. Zizza's bridge  warrant,  as neither D2 Co. nor Mr. Mitchell could be deemed
the beneficial  owners  thereof.  Based upon  11,807,660  shares of Common Stock
outstanding,  as set forth in the Issuer's Form 10-QSB for the quarterly  period
ended December 31, 2000 as filed with the Securities and Exchange  Commission on
February 14, 2000, D2 Co.  beneficially  owns 29.9% of the Common  Stock.  David
Mitchell is the sole member of D2 Co. and therefore beneficially owns the shares
of Common Stock held by D2 Co.

            (b) D2 Co., through its sole Member, David Mitchell,  has sole power
to vote  and  dispose  of all of the  shares  of  Common  Stock  owned by D2 Co.
However, D2 Co. has entered into the Shareholders' Agreement described in ITEM 6
below,  which contains  provisions as to the voting of such shares in respect of
the election of directors.

            (c) Response to ITEM 4 is incorporated herein by reference.

            (d) Not Applicable.

            (e) Not Applicable.

ITEM 6. Contracts, Arrangements, Understandings or Relationships With Respect to
        Securities of the Issuer.


                             - Page 6 of 10 Pages -

<PAGE>

      As part of the  Warrant  Purchase  Agreement,  D2 Co.  has  the  right  to
require, in certain instances, the Issuer to prepare and file (at the expense of
the Issuer) a registration statement with the Securities and Exchange Commission
relating to the resale of the shares of Common  Stock held by, or issuable to D2
Co. upon exercise of the Warrants of the Issuer held by it.

      Concurrently  with the  execution of the Warrant  Purchase  Agreement  and
Management  Agreement,  D2 Co.  and  certain  other  stockholders  of the Issuer
entered  into a  Shareholders'  Agreement,  dated as of  December  23, 1999 (the
"Shareholders'   Agreement").   Pursuant  to  the  terms  of  the  Shareholders'
Agreement, the shareholders of the Issuer party to such agreement agreed to vote
their  shares  of  capital  stock  of the  Issuer  in  order  to  elect  certain
individuals,  including Messrs.  Mitchell (the sole member of D2 Co.) and Zizza,
as directors of the Issuer.

ITEM 7. Material to be Filed as Exhibits.

Exhibit #        Description of Exhibit
- ---------------------------------------
1                Joint Filing Agreement,  dated as of April 28, 2000, between D2
                 Co. and David Mitchell.

2                Warrant  Purchase  Agreement,  dated  December 23, 1999, by and
                 between D2 Co., LLC and Bion Environmental Technologies, Inc.*

3                Management  Agreement,  dated December 23, 1999, by and between
                 D2 Co., LLC and Bion Environmental Technologies, Inc.*

4                Form of Note and Warrant  Purchase  Agreement,  dated March 31,
                 2000,  by and  between  D2  Co.,  LLC  and  Bion  Environmental
                 Technologies.

5                Form of Bridge  Note,  dated  March 31,  2000,  payable by Bion
                 Environmental Technologies, Inc. to D2 Co., LLC.

6                Form of Bridge  Warrant,  dated March 31, 2000,  issued by Bion
                 Environmental Technologies, Inc. to D2 Co. LLC.

7                Shareholders' Agreement,  dated December 23, 1999, by and among
                 D2 Co.,  LLC,  Mark A.  Smith,  Jere  Northrop,  Jon  Northrop,
                 Lotaylingkyur,  Inc.,  LTLK  Defined  Benefit  Plan and  Dublin
                 Holding, Ltd.*

- ------------------
*Incorporated by reference to exhibits 10.2, 10.1 and 10.3, respectively, to the
Form 8-K filed with the Securities and Exchange  Commission on December 23, 1999
(File No. 000-19333).


                             - Page 7 of 10 Pages -

<PAGE>

Annex 2a

<TABLE>
<CAPTION>
         (a)                             (b)                             (c)                        (d)   (e)   (f)

<S>                         <C>                         <C>                                         <C>   <C>   <C>
D2 Co. LLC                  See Footnote 1.             To purchase, manage, hold, own,             No    No    N/A
                                                        invest in, and dispose of all or any
                                                        portion of securities of companies.

David Mitchell              Mitchell & Co.(2)           Investor                                    No    No    U.S.
- --------------------------------------------------------------------------------------------------------------------
</TABLE>

Notes:

(1) The address of D2 Co.,  LLC is c/o  Mitchell & Co.,  681 Fifth  Avenue,  9th
    Floor, New York, NY 10022.

(2) The address of Mitchell & Co. is 681 Fifth Avenue,  9th Floor,  New York, NY
    10022.


                             - Page 8 of 10 Pages -

<PAGE>

                                    Signature

      After reasonable  inquiry and to the best of my knowledge and belief,  the
undersigned  hereby certifies that the information set forth in this Schedule is
true, complete, and correct.

Date: April 28, 2000                            D2 CO., LLC

                                                By:   /s/ David Mitchell
                                                   -----------------------------
                                                      Name: David Mitchell
                                                      Title: Sole Member

ATTENTION:  INTENTIONAL  MISSTATEMENTS  OR OMISSIONS OF FACT CONSTITUTE  FEDERAL
CRIMINAL VIOLATIONS (SEE 18 U.S.C. 1001).

                                    Signature

      After reasonable  inquiry and to the best of my knowledge and belief,  the
undersigned  hereby certifies that the information set forth in this Schedule is
true, complete, and correct.

Date: April 28, 2000
                                                      /s/ David Mitchell
                                                      --------------------------
                                                      DAVID MITCHELL

ATTENTION:  INTENTIONAL  MISSTATEMENTS  OR OMISSIONS OF FACT CONSTITUTE  FEDERAL
CRIMINAL VIOLATIONS (SEE 18 U.S.C. 1001).


                                      - 9 -



                                                                       Exhibit 1

                             Joint Filing Agreement

      In accordance  with Rule  13d-1(f)  under the  Securities  Exchange Act of
1934, as amended,  the undersigned hereby agree to the joint filing on behalf of
each of them of a statement on Schedule 13D (including  amendments thereto) with
respect to the no par value  Common  Stock of Bion  Environmental  Technologies,
Inc.  and that this  agreement  be included as an Exhibit to such joint  filing.
This agreement may be executed in any number of  counterparts  all of which when
taken together shall constitute one and the same instrument.

      IN WITNESS  WHEREOF,  the  undersigned  hereby execute this agreement this
28th day of April, 2000.

D2 CO., LLC

By:   /s/ David Mitchell
   ------------------------------
Name: David Mitchell
Title: Sole Member

     /s/ David Mitchell
- ---------------------------------
DAVID MITCHELL



                                                                       Exhibit 4

                       NOTE AND WARRANT PURCHASE AGREEMENT

      NOTE  AND  WARRANT  PURCHASE  AGREEMENT  (this  "Agreement")  dated  as of
______________, by and between BION ENVIRONMENTAL TECHNOLOGIES, INC., a Colorado
corporation (the "Company"),  D2 CO., LLC, a Delaware limited  liability company
("D2") and the other parties executing signature pages hereto (collectively with
D2, the "Purchasers").

      WHEREAS, in a series of transactions and upon and subject to the terms and
conditions  hereinafter set forth,  the Company desires to issue and sell to the
Purchasers,  and the  Purchasers  desire to  purchase  from the  Company,  (i) a
minimum of  $1,000,0000  and a maximum of  $5,000,000  aggregate  face amount of
convertible  Bridge Notes (the "Bridge  Notes") in the form  attached  hereto as
Exhibit A and (ii) a minimum  of an  aggregate  of  300,000  and a maximum of an
aggregate of 1,500,000  Bridge  Warrants  (the  "Bridge  Warrants")  in the form
attached  as  Exhibit  B, each of which  shall  entitle  the  holder  thereof to
purchase one share of the Common Stock of the Company.

      NOW, THEREFORE, in consideration of the premises and the mutual agreements
contained herein, the Purchasers and the Company hereby agree as follows:

            1. Purchase of Company Securities.

            1.1.  Purchase and Sale of the Bridge Notes and the Bridge Warrants.
Subject to the terms and conditions set forth herein,  the Company hereby agrees
to issue  and sell to the  Purchasers,  and each  Purchaser,  hereby  agrees  to
purchase  from the  Company,  such  number  of Units (as  defined  below) at the
Closing  (as such term is  defined in  Section  2.1  hereof) as is listed on its
signature page. Each "Unit" shall consist of $25,000 face amount of Bridge Notes
and 7,500  Bridge  Warrants.  The  aggregate  purchase  price for the Units sold
pursuant  to this  Agreement  shall be equal to the sum of $1.00 for each  $1.00
principal amount of Bridge Notes and $.05 for each Bridge Warrant.

            2. Closing.

            2.1. Closing. The initial closing and each additional closing of the
purchase  and sale of the Units  will take place at the  offices  of Bion.  Such
closings (each, a "Closing" and collectively, the "Closings") will take place at
10:00  A.M.,  local time,  on such dates as may be  mutually  agreed upon by the
Company and the Purchasers.  The date of each Closing is referred to herein as a
"Closing  Date." The date of the first Closing shall hereafter be referred to as
the "Initial  Closing Date" and the date of the final Closing shall hereafter be
referred to as the "Final  Closing  Date." At each  Closing,  the  Company  will
deliver to the Purchasers the Bridge Notes and the Bridge Warrants  purchased as
set forth in Section 1 hereof,  against  payment of the Purchase  Price, by wire
transfer payable to the Company.  The Bridge Notes and the Bridge Warrants shall
be registered  in each  Purchaser's  name or the name of its  nominee(s) in such
denominations as the Purchaser shall


<PAGE>

request pursuant to instructions delivered to the Company not less than two days
prior to such Closing Date.

            3. Conditions to the  Obligations of Purchasers at the Closing.  The
obligation  of each  Purchaser to purchase and pay for the Units to be purchased
by it at a Closing  is subject to the  satisfaction  on or prior to the  Closing
Date of the following conditions, which may only be waived by written consent of
Purchasers:

            3.1.  Opinion  of  Counsel  to the  Company.  Purchaser  shall  have
received from counsel for the Company, its opinion dated the Closing Date in the
form of Exhibit A hereto.

            3.2. Representations and Warranties.  All of the representations and
warranties of the Company  contained in this Agreement shall be true and correct
at and as of such Closing Date,  except for changes  caused by the  transactions
contemplated hereby.

            3.3.  Performance of Covenants.  All of the covenants and agreements
of the Company  contained in this  Agreement  and required to be performed on or
prior to the Closing Date shall have been performed in a manner  satisfactory in
all respects to Purchasers.

            3.4.  Legal Action.  No  injunction,  order,  investigation,  claim,
action or proceeding  before any court or governmental  body shall be pending or
threatened  wherein an  unfavorable  judgment,  decree or order would  restrain,
impair or prevent the carrying out of this Agreement or any of the  transactions
contemplated  hereby,  declare  unlawful the  transactions  contemplated by this
Agreement or cause any such transaction to be rescinded.

            3.5.  Consents.  The Company  shall have obtained in writing or made
all consents, waivers,  approvals,  orders, permits, licenses and authorizations
of, and  registrations,  declarations,  notices to and filings and  applications
with,  any  governmental  authority  or any other  person or entity  (including,
without limitation, securityholders and creditors of the Company) required to be
obtained  or made in order to enable the  Company to observe and comply with all
its  obligations  under  this  Agreement  and  to  consummate  the  transactions
contemplated hereby.

            3.6.  Closing  Documents.  The Company  shall have  delivered to the
Purchasers the following:

            (a) a  certificate  executed  by the  President  or Chief  Executive
Officer of the Company,  dated the Closing Date, stating that the conditions set
forth in Sections 3.2 through 3.5 have been satisfied;

            (b) an  incumbency  certificate,  dated the  Closing  Date,  for the
officers of the  Company  executing  this  Agreement,  the Bridge  Notes and the
Bridge Warrants and any other  documents or instruments  delivered in connection
with this Agreement at the Closing;


                                      - 2 -

<PAGE>

            (c) a  certificate  of the  Secretary or Assistant  Secretary of the
Company,  dated the Closing Date, as to the continued and valid existence of the
Company,  certifying  the  attached  copy of the  By-laws  of the  Company,  the
authorization of the execution,  delivery and performance of this Agreement, and
the resolutions adopted by the Board of Directors of the Company authorizing the
actions to be taken by the Company under this Agreement;

            (d) a  certificate  of  the  Secretary  of  State  of the  State  of
Colorado,  dated a  recent  date,  to the  effect  that the  Company  is in good
standing in the State of Colorado and that all annual reports, if any, have been
filed as  required  and that all taxes  and fees  have  been paid in  connection
therewith;

            (e) a certified copy of the Articles of Incorporation of the Company
as filed with the Secretary of State of the State of Colorado and any amendments
thereto;

            (f) such certificates, other documents and instruments as Purchasers
and their counsel may reasonably  request in connection with, and to effect, the
transactions contemplated by this Agreement.

            4. Conditions to the Obligations of the Company at the Closing.  The
obligation  of the  Company  to issue and sell the  Bridge  Notes and the Bridge
Warrants to the  Purchasers  at a Closing is subject to the  satisfaction  on or
prior to the  Closing  Date of the  following  conditions,  any of which  may be
waived by the Company:

            4.1.   Representations  and  Warranties.   The  representations  and
warranties  of the  Purchasers  contained  in this  Agreement  shall be true and
correct at and as of the Closing Date.

            4.2.  Legal Action.  No  injunction,  order,  investigation,  claim,
action or proceeding  before any court or governmental  body shall be pending or
threatened  wherein an  unfavorable  judgment,  decree or order would  restrain,
impair or prevent the carrying out of this Agreement or any of the  transactions
contemplated  hereby,  declare  unlawful the  transactions  contemplated by this
Agreement or cause any such transaction to be rescinded.

            5. Representations and Warranties of the Company. The Company hereby
represents  and  warrants  to the  Purchasers  that  except  as set forth on the
schedule (the "Disclosure Schedule") attached hereto:

            5.1.  Organization.  The Company is a  corporation  duly  organized,
validly  existing and in good standing  under the laws of the State of Colorado.
The Company  has all  requisite  corporate  power and  authority,  and holds all
licenses,   permits  and  other  required   authorizations   from   governmental
authorities,  necessary to conduct its business as it is now being  conducted or
proposed to be conducted  and to own or lease the  properties  and assets it now
owns or holds  under  lease.  Except  where such  failure  to qualify  could not
reasonably  be deemed to have a  material  adverse  effect on the  Company,  the
Company is duly qualified or licensed and in good standing as a foreign


                                      - 3 -

<PAGE>

corporation in each jurisdiction  wherein the character of its properties or the
nature of the activities  conducted by it makes such  qualification or licensing
necessary.

            5.2. Capitalization.  The Company's authorized capitalization is set
forth in the SEC Documents (as defined below). All outstanding securities of the
Company are validly issued, fully paid and nonassessable. Except as set forth on
the  Disclosure  Schedule,  noshareholder  of the  Company  is  entitled  to any
preemptive  rights with respect to the purchase or sale of any securities by the
Company.  Except as has been set forth in the Disclosure Schedule,  there are no
outstanding  options,  warrants or other rights,  commitments  or  arrangements,
written or oral, to purchase or otherwise  acquire any  authorized  but unissued
shares of capital  stock of the Company or any security  directly or  indirectly
convertible  into or exchangeable  for any capital stock of the Company or under
which any such  option,  warrant or  convertible  security  may be issued in the
future, and there are no voting trusts or agreements,  shareholders' agreements,
pledge agreements,  buy-sell,  rights of first offer,  negotiation or refusal or
proxies or similar  arrangements  relating to any  securities  of the Company to
which the Company is a party, and to the best knowledge of the Company after due
investigation there are no such trusts,  agreement,  rights,  proxies or similar
arrangements as to which the Company is not a party.  Except as set forth on the
Disclosure  Schedule and as contemplated  herein,  none of the shares of capital
stock of the Company is  reserved  for any  purpose,  and the Company is neither
subject  to any  obligation  (contingent  or  otherwise),  nor has any option to
repurchase or otherwise  acquire or retire any shares of its capital stock.  The
SEC Documents set forth (i) the number of shares of Common Stock  authorized for
issuance  under the Company's  Fiscal Year 1994 Incentive Plan and the Company's
1996 Non-employee Director Stock Plan; (ii) the number of shares of Common Stock
as to which  options under such plan have been (a) reserved for issuance and (b)
exercised;  and (iii) the exercise prices for all outstanding options under such
plan.  Except  as  set  forth  on  the  Disclosure  Schedule,   no  antidilution
adjustments  with respect to the  outstanding  securities of the Company will be
triggered by the issuance of the securities contemplated hereby.

            5.3. Due Authorization,  Valid Issuance, Etc.. The Bridge Notes have
been duly authorized and, when issued in accordance with this Agreement upon the
Closing  Date,  will be free and clear of all liens  imposed by or  through  the
Company.  The Bridge  Warrants  have been duly  authorized  and,  when issued in
accordance with this Agreement upon the Closing Date, will be validly issued and
free and clear of all liens  imposed by or through  the  Company.  The shares of
capital  stock,  issuable upon  conversion  of the Bridge Notes,  have been duly
authorized  and  shares  of  Common  Stock  have  been  reserved,  and  upon the
conversion  of  the  Bridge  Notes  will  be  validly  issued,  fully  paid  and
nonassessable  and will be free and clear of all liens imposed by or through the
Company.  The shares of Common  Stock  issuable  upon the exercise of the Bridge
Warrants have been duly  authorized  and reserved,  and upon the exercise of the
Bridge  Warrants in accordance  with the terms and  conditions  thereof and this
Agreement, will be validly issued, fully paid and nonassessable shares of Common
Stock and will be free and clear of all liens imposed by or through the Company.
Except as set forth on the  Disclosure  Schedule,  the issuance,  sale and clear
delivery of the Bridge Notes,  the Bridge Warrants and the Common Stock or other
capital stock of the Company  issuable upon the exercise of the Bridge  Warrants
and conversion of the Bridge Notes will


                                      - 4 -

<PAGE>

not be subject to any preemptive  right of shareholders of the Company or to any
right of first refusal or other right in favor of any person.

            5.4.  Authorization;  No Breach.  The Company has the full corporate
power and  authority to execute,  deliver and enter into this  Agreement  and to
perform its obligations hereunder,  and the execution,  delivery and performance
of this  Agreement,  the Bridge  Notes,  the Bridge  Warrants,  and any  related
financing  statement and all other  transactions  contemplated  hereby have been
duly authorized by the Company,  and this Agreement  constitutes a legal,  valid
and binding obligation of the Company,  enforceable in accordance with its terms
except  as  the  enforceability   hereof  may  be  limited  by  (a)  bankruptcy,
insolvency,  moratorium and similar laws affecting  creditors'  rights generally
and (b) the availability of remedies under general equitable  principles and (c)
to the extent the indemnification provisions contained in Section 8.5 hereof may
be limited by  applicable  federal or state  securities  laws.  To the Company's
knowledge,  the  execution  and delivery by the Company of this  Agreement,  the
offering, sale and issuance of the Bridge Notes and the Bridge Warrants pursuant
to this  Agreement,  and the  performance  and fulfillment of the Company of its
obligations under this Agreement,  the Bridge Notes and the Bridge Warrants,  do
not and  will  not (i)  conflict  with  or  result  in a  breach  of the  terms,
conditions or provisions of, (ii)  constitute a default  under,  or event which,
with notice or lapse of time or both,  would  constitute  a breach of or default
under,  (iii) result in the  creation of any lien,  security  interest,  adverse
claim,  charge or  encumbrance  upon the capital  stock or assets of the Company
pursuant to, (iv) give any third party the right to  accelerate  any  obligation
under or terminate, (v) result in a violation of, (vi) result in the loss of any
license, certificate, legal privilege or legal right enjoyed or possessed by the
Company  under,  or  (vii)  except  for  filings  required  to be made  with the
Securities  and  Exchange  Commission,   require  any  authorization,   consent,
approval,  exemption or other action by or notice to any court or administrative
or  governmental  body  pursuant to or require  the consent of any other  person
under,  the  Articles  of  Incorporation  or By-Laws of the  Company or any law,
statute,  rule or  regulation to which the Company is subject or by which any of
its  properties  are bound,  or any agreement,  instrument,  order,  judgment or
decree to which the Company is subject or by which its properties are bound.

            5.5.  Financial  Statements and SEC Documents.  (a)  Incorporated by
reference herein are (i) the audited financial statements of the Company for the
fiscal year ended June 30, 1999,  including  the balance  sheet as at the end of
such fiscal year and the related statements of operations,  shareholders' equity
(deficit)  and cash flows for such fiscal  year,  certified  by  Ehrhardt  Keefe
Steiner  &  Hottman  PC and (ii) the  September  30  Financial  Statements  (the
financial  statements referred to in clauses (i) and (ii) are referred to herein
collectively  as the "Financial  Statements").  For purposes of this  Agreement,
September  30, 1999,  shall be  hereinafter  referred to as the  "Balance  Sheet
Date." The Financial  Statements have been prepared in accordance with the books
and records of the Company and generally accepted accounting principles, applied
consistently  with the past practices of the Company  (except as otherwise noted
in such Financial  Statements),  reflect all  liabilities and obligations of the
Company, as of their respective dates, and present fairly the financial position
of the  Company  and the  results of its  operations  as of the time and for the
periods indicated therein.


                                      - 5 -

<PAGE>

            (b)  Incorporated  by referenced  herein are each report,  schedule,
registration  statement and definitive proxy statement filed by the Company with
the  Securities  and Exchange  Commission  since May 15, 1996 (as such documents
have since the time of their filing been amended, the "SEC Documents") which are
all the  documents  (other  than  preliminary  material)  that the  Company  was
required to file with the Securities and Exchange Commission since such date. As
of their respective  dates, the SEC Documents  complied in all respects with the
requirements  of the  Securities  Act (as  defined  in Section  9.7)  and/or the
Securities  Exchange Act (as defined in Section 9.8) as the case may be, and the
rules and  regulations  of the  Securities  and Exchange  Commission  thereunder
applicable to such SEC  Documents  and none of the SEC  Documents  contained any
untrue  statement of a material  fact or omitted to  statement of material  fact
required to be stated  therein or necessary to make the statements  therein,  in
light of the  circumstances  under  which they were made,  not  misleading.  The
financial  statements of the Company  included in the SEC Documents comply as to
form in all material respects with applicable  accounting  requirements and with
the published  rules and  regulations of the Securities and Exchange  Commission
with respect thereto,  have been prepared in accordance with generally  accepted
accounting  principles applied on a consistent basis during the periods involved
(except  as may be  indicated  in the  notes  thereto  or,  in the  case  of the
unaudited statements, as permitted by Form 10-QSB of the Securities and Exchange
Commission)  and  fairly  present  (subject,   in  the  case  of  the  unaudited
statements,  to normal,  recurring audit  adjustments) the financial position of
the  Company  as at the dates  thereof  and the  consolidated  results  of their
operations and cash flows for the periods then ended.

            5.6.  No  Material  Adverse  Changes.  Except  as set  forth  on the
Disclosure Schedule, since the Balance Sheet Date there has not at any time been
(a) any material adverse change in the financial  condition,  operating results,
business prospects,  employee relations or customer relations of the Company, or
(b) other adverse changes,  which in the aggregate have been materially  adverse
to the Company.

            5.7.  Litigation.  Except as set forth on the  Disclosure  Schedule,
there are no actions, suits,  proceedings,  orders, claims, or, to the Company's
knowledge,  investigations  pending or, to the Company's  knowledge,  threatened
against  or  affecting  the  Company,  at law or in  equity  or before or by any
federal, state, municipal or other governmental department,  commission,  board,
bureau, agency or instrumentality;  there are no arbitration proceedings pending
under collective  bargaining  agreements or otherwise;  and, to the knowledge of
the Company, there is no basis for any of the foregoing.

            5.8.  Compliance with Law. To the Company's  knowledge,  the Company
has  complied  in  all  material  respects  with  all  applicable  statutes  and
regulations  of  the  United  States  and  of  all  states,  municipalities  and
applicable  agencies  and  foreign  jurisdictions  or bodies in  respect  of the
conduct of its business and operations,  and the failure, if any, by the Company
to have fully complied with any such statute or regulation does not and will not
materially adversely affect the business or operations of the Company.


                                      - 6 -

<PAGE>

            5.9.  Undisclosed  Liabilities.  To  the  Company's  knowledge,  the
Company has no obligation or liability (whether accrued,  absolute,  contingent,
unliquidated,  or  otherwise,  whether  due or to  become  due)  arising  out of
transactions  entered into at or prior to the Closing of this Agreement,  or any
action or inaction at or prior to the Closing of this Agreement, or any state of
facts  existing  at or  prior  to the  Closing  of this  Agreement,  except  (a)
liabilities  reflected on the Company Balance Sheet; (b) liabilities incurred in
the ordinary course of business since the Balance Sheet Date (none of which is a
liability  for breach of  contract,  breach of warranty,  torts,  infringements,
claims or lawsuits);  and (c)  liabilities or  obligations  disclosed in the SEC
Documents on the schedules hereto.

            5.10.  Disclosure.  Neither this Agreement nor any of the schedules,
exhibits, written statements,  documents or certificates prepared or supplied by
the Company with respect to the  transactions  contemplated  hereby  contain any
untrue  statement of a material fact or omit a material  fact  necessary to make
the  statements  contained  herein or  therein  not  misleading  in light of the
circumstances  under which made.  Except as disclosed in the SEC  Documents  and
except for matters  effecting  the  industry  of the  Company as a whole,  there
exists no fact or  circumstance  which, to the knowledge of the Company upon due
inquiry,  materially adversely affects, or which could reasonably be anticipated
to have a material  adverse  effect  on,  the  existing  or  expected  financial
condition,  operating results, assets, customer relations, employee relations or
business prospects of the Company. The Purchasers  acknowledge that the industry
of the Company is subject to extensive  regulation by national,  state and local
authorities and that a change in any such  regulations or the institution of any
litigation  effecting  the  industry  of the  Company in  general,  could have a
material adverse effect on the Company.

            5.11.  Compliance with the Securities Laws.  Neither the Company nor
anyone acting on its behalf has directly or indirectly  offered the Bridge Notes
and the Bridge  Warrants  or any part  thereof or any  similar  security  of the
Company (or any other  securities  convertible  or  exchangeable  for the Bridge
Notes  and the  Bridge  Warrants  or any  similar  security),  for sale  to,  or
solicited any offer to buy the same from, anyone other than Purchasers. Assuming
the accuracy and truth of each of the Purchasers'  representations  set forth in
Section 6 of this Agreement,  all securities of the Company  heretofore sold and
issued by it were sold and issued,  and the Bridge Notes and the Bridge Warrants
were  offered and will be sold and issued,  in  compliance  with all  applicable
federal and state securities laws.

            6.  Representations  and  Warranties  of  Purchasers.  Each  of  the
Purchasers hereby severally represents and warrants to the Company as follows:

            6.1.  Investment  Intent.  Each of the  Purchasers is an "accredited
investor"  within the meaning of Regulation D under the Securities  Act. Each of
the  Purchasers  has  experience  in making  investments  in  development  stage
technology  companies and is acquiring the Bridge Notes and the Bridge  Warrants
for its own  account and not with a present  view to, or for sale in  connection
with, any distribution thereof in violation of the registration  requirements of
the Securities  Act. Each of the Purchasers  consents to the placing of a legend
on the certificates representing the Bridge Notes


                                      - 7 -

<PAGE>

and the Bridge  Warrants to the effect that the shares of Common  Stock or other
Stock  issuable upon exercise or  conversion,  as the case may be, of the Bridge
Warrants and the Bridge Notes have not been registered  under the Securities Act
and may not be transferred except in accordance with applicable  securities laws
or an exception therefrom.

            6.2.  Authorization.  Each  of the  Purchasers  has  the  power  and
authority to execute and deliver this  Agreement and to perform its  obligations
hereunder,  having obtained all required  consents,  if any, and this Agreement,
when  executed  and  delivered,  will  constitute  a  legal  valid  and  binding
obligation of such Purchaser.

            6.3.  Suitability.  Each Purchaser  acknowledges that he is a person
who is able to bear the economic risk of this  investment and has adequate means
of providing for his current needs and possible personal  contingencies  with no
need for liquidity of this investment.  In making this statement,  consideration
has been given as to whether the Purchaser  could afford to hold his  investment
in the Company for an indefinite period of time and,  whether,  at this time, he
could afford a complete loss of his investment,  without such loss affecting his
ability to maintain his lifestyle.

            6.4.  Risks.  Each Purchaser  acknowledges  that this  investment is
speculative in nature and involves a high degree of risk, that the Purchaser may
not be able to liquidate this investment and that  transferability  is extremely
limited.

            6.5.  Due  Inquiry.  Each  Purchaser  acknowledges  receipt  of  all
information  regarding  the Company  which he has  requested or desired to know;
that all documents  which could be reasonably  provided have been made available
for his  inspection  and review;  and that the  Purchaser  has been afforded the
opportunity  to ask  questions  of and  receive  answers  from  duly  authorized
officers or other  representatives  of the Company concerning the Company and an
investment therein, and any additional information which he has requested.

            7.  Covenants  of the Company.  Until such time as the  Registration
Statement (as defined below) is declared effective under the Securities Act, the
Company covenants and agrees with Purchasers as follows:

            7.1.  Books and  Accounts.  The  Company  will make and keep  books,
records and accounts, which, in reasonable detail, accurately and fairly reflect
its transactions, including without limitation, dispositions of its assets.

            7.2. Reports.  The Company will make such filings as may be required
under the Securities Act.

            7.3. Use of Proceeds; Restriction on Payments. The Company shall use
the net proceeds from the sale of the Bridge Notes and Bridge Warrants to bridge
its working  capital needs through such time as it can consummate an offering of
its securities. The Company covenants and


                                      - 8 -

<PAGE>

agrees  that it will not  directly  or  indirectly  use any of the  proceeds  to
redeem, repurchase or otherwise acquire any equity security of the Company.

            7.4.  Corporate  Existence,  Licenses  and Permits;  Maintenance  of
Properties;  New Businesses.  The Company will at all times conduct its business
in the  ordinary  course and cause to be done all things  necessary to maintain,
preserve and renew its existence and will preserve and keep in force and effect,
all  licenses,  permits  and  authorizations  necessary  to the  conduct  of its
business. The Company will also maintain and keep its properties in good repair,
working  order and  condition,  and from time to time,  to make all  needful and
proper repairs,  renewals and  replacements,  so that the business carried on in
connection therewith may be properly conducted at all times.

            7.5.  Other Material  Obligations.  The Company will comply with (a)
all material obligations which it is subject to, or becomes subject to, pursuant
to any contract or agreement,  whether oral or written,  as such obligations are
required to be observed or performed, unless and to the extent that the same are
being contested in good faith and by appropriate proceedings and the Company has
set aside on its books  adequate  reserves  with  respect  thereto,  and (b) all
applicable laws,  rules, and regulations of all  governmental  authorities,  the
violation of which could have a material adverse effect upon the business of the
Company.

            7.6. Amendment to the Articles of Incorporation and the By-Laws. The
Company will perform and be in compliance with and observe all of the provisions
set forth in its  Articles of  Incorporation  and By-Laws to the extent that the
performance of such obligations is legally  permissible;  provided that the fact
that performance is not legally permissible will not prevent such nonperformance
from constituting an event of default under this Agreement. The Company will not
amend its Articles of  Incorporation  or By-Laws so as to  adversely  affect the
rights of the Purchasers  under this Agreement,  the Articles of  Incorporation,
the By-Laws, the Bridge Warrants or the Bridge Notes.

            7.7. Dividends; Distributions; Repurchases of Common Stock; Treasury
Stock.  The Company shall not declare or pay any dividends on, or make any other
distribution  with  respect to, its  capital  stock,  whether  now or  hereafter
outstanding,  or purchase,  acquire,  redeem or retire any shares of its capital
stock, without the prior written consent of the Purchasers,  provided,  however,
the foregoing shall not prohibit the Company issuing shares of its capital stock
in exchange for extinguishing  debt owed to any person, or from repurchasing any
shares of its Common  Stock  from any  present or former  officer,  Director  or
employee of the Company, or from repurchasing any outstanding warrants.

            7.8.  Taxes and Liens.  The Company will duly pay and discharge when
payable, all taxes, assessments and governmental charges imposed upon or against
the Company or its properties, or any part thereof or upon the income or profits
therefrom,  in each case before the same become  delinquent and before penalties
accrue thereon, as well as all claims for labor,  materials or supplies which if
unpaid might by law become a lien upon any of its property, unless and to the


                                      - 9 -

<PAGE>

extent  that the same are  being  contested  in good  faith  and by  appropriate
proceedings  and the Company has set aside on its books  adequate  reserves with
respect thereto.

            7.9.  Restrictive  Agreement.  The Company covenants and agrees that
subsequent to the Closing, it will not be a party to any agreement or instrument
which by its terms would restrict the Company's  performance of its  obligations
pursuant to this Agreement,  the Articles of Incorporation,  By-laws, the Bridge
Warrants or the Bridge Notes.

            8. Registration of Common Stock.

            8.1.  Registration.  Not later than nine months  following the Final
Closing Date, the Company will file a registration  statement (the "Registration
Statement")  with respect to the resale of the  Registrable  Securities with the
Securities and Exchange Commission. The Company will use commercially reasonable
efforts to effect, no later than 12 months following the Final Closing Date, the
registrations, qualifications or compliances (including, without limitation, the
execution  of  any  required  undertaking  to  file  post-effective  amendments,
appropriate  qualifications  under applicable blue sky or other state securities
laws and appropriate compliance with applicable securities laws, requirements or
regulations)  as may be  reasonably  requested and as would permit or facilitate
the sale and  distribution of all Registrable  Securities until the distribution
thereof  is  complete.  In the event  the  Registration  Statement  has not been
declared  effective  under  the  Securities  Act  within  12 months of the Final
Closing Date, then, for each 90 days thereafter that the Registration  Statement
has not been declared effective,  the Company shall pay a penalty to each of the
Purchasers  equal to 5% of the principal  amount of the Bridge Notes held by it.
This penalty,  which shall be payable at the Company's  option in either cash or
shares  of  registered  Common  Stock,  shall  be  paid  by the  Company  to the
Purchasers  within 10 days  following  the  effective  date of the  Registration
Statement,  or,  in the  event  the  Registration  Statement  has still not been
declared  effective  or has been  withdrawn  by the  Company,  no later than the
second anniversary of the Final Closing Date.

            8.2. Registration Procedures. In connection with the registration of
any Registrable  Securities under the Securities Act as provided in this Section
8, the Company will use its best efforts, as expeditiously as possible to:

            (a) Prepare and file with the Securities and Exchange Commission the
Registration  Statement with respect to such Registrable  Securities and use its
best efforts to cause such Registration Statement to become effective;

            (b) Prepare and file with the  Securities  and  Exchange  Commission
such  amendments  and  supplements  to  such  Registration   Statement  and  the
prospectus  used in  connection  therewith  as may be  necessary  to  keep  such
Registration Statement effective until the earlier to occur of December 31, 2004
or such time as the Bridge  Warrants  have been  redeemed  pursuant to the terms
therein,  and to comply with the provisions of the Securities Act (to the extent
applicable to the Company) with respect thereto;


                                     - 10 -

<PAGE>

            (c)  Furnish  to each  seller of such  Registrable  Securities  such
number of copies of such  Registration  Statement and of each such amendment and
supplement thereto (in each case including all exhibits),  such number of copies
of the  prospectus  included  in such  Registration  Statement  (including  each
preliminary  prospectus),  in conformity with the requirements of the Securities
Act, and such other documents,  as such seller may reasonably  request, in order
to  facilitate  the  disposition  of the  Registrable  Securities  owned by such
seller;

            (d) Use its best  efforts to  register or qualify  such  Registrable
Securities covered by such Registration Statement under such other securities or
blue sky laws of such  jurisdictions as any seller reasonably  requests,  and do
any and all other acts and things which may be reasonably necessary or advisable
to enable such seller to consummate the disposition in such jurisdictions of the
Registrable  Securities  owned by such seller,  except that the Company will not
for any such  purpose be  required  to qualify  generally  to do  business  as a
foreign  corporation  in any  jurisdiction  wherein  it would  not,  but for the
requirements  of this Section  8.2(d) be obligated to be  qualified,  to subject
itself to taxation in any such jurisdiction, or to consent to general service of
process in any such jurisdiction;

            (e) Provide a transfer agent and registrar for all such  Registrable
Securities  covered by such Registration  Statement not later than the effective
date of such Registration Statement;

            (f) Notify each seller of such  Registrable  Securities  at any time
when a  prospectus  relating  thereto  is  required  to be  delivered  under the
Securities  Act,  of the  happening  of any  event  as a  result  of  which  the
prospectus included in such Registration  Statement contains an untrue statement
of a material fact or omits any fact  necessary to make the  statements  therein
not misleading, and, at the request of any such seller, the Company will prepare
a supplement or amendment to such prospectus so that, as thereafter delivered to
the purchasers of such Registrable Securities,  such prospectus will not contain
an untrue  statement of a material  fact or omit to state any fact  necessary to
make the statements therein not misleading;

            (g)  Cause  all such  Registrable  Securities  to be  listed on each
securities  exchange  or  automated  over-the-counter  trading  system  on which
similar securities issued by the Company are then listed;

            (h) Enter  into such  customary  agreements  and take all such other
actions  as  reasonably   required  in  order  to  expedite  or  facilitate  the
disposition of such Registrable Securities; and

            (i) Make  available  for  inspection  by any  seller of  Registrable
Securities, all financial and other records, pertinent corporation documents and
properties  of the Company,  and cause the  Company's  officers,  directors  and
employees to supply all information  reasonably  requested by any such seller in
connection with the Registration Statement pursuant to Section 8.1.


                                     - 11 -

<PAGE>

            8.3. Registration and Selling Expenses. (a) All expenses incurred by
the Company in connection  with the Company's  performance of or compliance with
this Section 8, including,  without  limitation (i) all  registration and filing
fees (including all expenses incident to filing with the National Association of
Securities Dealers, Inc.), (ii) blue sky fees and expenses,  (iii) all necessary
printing and duplicating expenses and (iv) all fees and disbursements of counsel
and  accountants  for the  Company  (including  the  expenses  of any  audit  of
financial  statements),  retained by the Company (all such expenses being herein
called "Registration Expenses"), will be paid by the Company except as otherwise
expressly provided in this Section 8.3. The term  "Registration  Expenses" shall
not include any underwriting  discounts or commissions  incurred by a Purchaser,
which shall be the responsibility of such Purchaser.

            (b)  The  Company  will,  in  any  event,  in  connection  with  any
registration   statement,   pay  its  internal  expenses   (including,   without
limitation,  all salaries and expenses of its officers and employees  performing
legal, accounting or other duties in connection therewith and expenses of audits
of year-end financial  statements),  the expense of liability  insurance and the
expenses and fees for listing the  securities  to be  registered  on one or more
securities  exchanges or  automated  over-the-counter  trading  systems on which
similar securities issued by the Company are then listed.

            8.4. NASD. In the event any Purchaser is deemed to be a member or an
affiliate of a member of the National  Association of Securities  Dealers,  Inc.
("NASD")  and as a result  the  Registrable  Securities  held by such  Purchaser
cannot be included in the Registration  Statement,  then such Purchaser shall no
longer be entitled to the registration  rights granted under this Section 8. The
Company  may,  however,   in  its  sole  discretion,   include  the  Purchaser's
Registrable  Securities  in a  future  registration  statement,  to  the  extent
permitted by the NASD or the Securities and Exchange Commission.

            8.5. Indemnification. (a) The Company hereby agrees to indemnify, to
the extent permitted by law, each holder of Registrable Securities, its officers
and directors,  if any, and each person, if any, who controls such holder within
the  meaning  of the  Securities  Act,  against  all  losses,  claims,  damages,
liabilities  and expenses  (under the Securities Act or common law or otherwise)
caused by any untrue  statement or alleged  untrue  statement of a material fact
contained  in any  registration  statement  or  prospectus  (and as  amended  or
supplemented if the Company has furnished any amendments or supplements thereto)
or any  preliminary  prospectus,  which  registration  statement,  prospectus or
preliminary  prospectus  shall be prepared in connection  with the  registration
contemplated by this Section 8, or caused by any omission or alleged omission to
state therein a material fact required to be stated therein or necessary to make
the statements  therein not misleading,  except insofar as such losses,  claims,
damages,  liabilities or expenses are caused by any untrue  statement or alleged
untrue  statement  contained  in or by any  omission  or alleged  omission  from
information  furnished  in writing by such holder to the  Company in  connection
with the registration  contemplated by this Section 8, provided the Company will
not be liable  pursuant to this  Section 8.5 if such  losses,  claims,  damages,
liabilities  or  expenses  have been  caused by any  selling  security  holder's
failure to deliver a copy of the  registration  statement or prospectus,  or any
amendments or


                                     - 12 -

<PAGE>

supplements thereto, after the Company has furnished such holder with the number
of copies required by Section 8.2(c).

            (b) In connection with any registration  statement in which a holder
of Registrable  Securities is  participating,  each such holder shall furnish to
the  Company in writing  such  information  as is  reasonably  requested  by the
Company  for use in any such  registration  statement  or  prospectus  and shall
severally,  but not  jointly,  indemnify,  to the extent  permitted  by law, the
Company,  its directors  and officers and each person,  if any, who controls the
Company within the meaning of the Securities  Act,  against any losses,  claims,
damages, liabilities and expenses resulting from any untrue statement or alleged
untrue  statement of a material  fact or any  omission or alleged  omission of a
material fact required to be stated in the registration  statement or prospectus
or any  amendment  thereof  or  supplement  thereto  or  necessary  to make  the
statements therein not misleading,  but only to the extent such losses,  claims,
damages,  liabilities  or expenses are caused by an untrue  statement or alleged
untrue  statement  contained  in or by an  omission  or  alleged  omission  from
information  so  furnished  in writing  by such  holder in  connection  with the
registration  contemplated  by this Section 8. If the  offering  pursuant to any
such registration is made through underwriters, each such holder agrees to enter
into an underwriting  agreement in customary form with such  underwriters and to
indemnify such  underwriters,  their  officers and  directors,  if any, and each
person who controls such  underwriters  within the meaning of the Securities Act
to the same extent as hereinabove  provided with respect to  indemnification  by
such holder of the Company. Notwithstanding the foregoing or any other provision
of this  Agreement,  in no event  shall a holder of  Registrable  Securities  be
liable for any such losses, claims,  damages,  liabilities or expenses in excess
of the net proceeds received by such holder in the offering.

            (c) Promptly after receipt by an indemnified party under Section 8.5
(a) or (b) of notice of the  commencement  of any  action  or  proceeding,  such
indemnified  party  will,  if a claim in  respect  thereof is made  against  the
indemnifying party under such Section,  notify the indemnifying party in writing
of the  commencement  thereof;  but the  omission so to notify the  indemnifying
party  will  not  relieve  it  from  any  liability  which  it may  have  to any
indemnified party otherwise than under such Section.  In case any such action or
proceeding  is brought  against  any  indemnified  party,  and it  notifies  the
indemnifying party of the commencement  thereof,  the indemnifying party will be
entitled to participate therein, and, to the extent that it wishes, jointly with
any other indemnifying party similarly notified,  to assume the defense thereof,
with  counsel  approved by such  indemnified  party,  and after  notice from the
indemnifying  party to such  indemnified  party of its election so to assume the
defense thereof,  the indemnifying  party will not be liable to such indemnified
party  under  such  Section  for any  legal or any other  expenses  subsequently
incurred by such indemnified party in connection with the defense thereof (other
than reasonable costs of  investigation)  unless incurred at the written request
of the indemnifying party. Notwithstanding the above, the indemnified party will
have the  right to  employ  counsel  of its own  choice  in any such  action  or
proceeding if the indemnified  party has reasonably  concluded that there may be
defenses  available to it which are different from or additional to those of the
indemnifying  party, or counsel to the indemnified  party is of the opinion that
it  would  not  be  desirable  for  the  same  counsel  to  represent  both  the
indemnifying party and the indemnified party because such  representation  might
result in a conflict


                                     - 13 -

<PAGE>

of interest (in either of which cases the  indemnifying  party will not have the
right to assume the  defense of any such action or  proceeding  on behalf of the
indemnified  party or parties and such legal and other expenses will be borne by
the  indemnifying  party).  An  indemnifying  party  will not be  liable  to any
indemnified  party for any settlement of any such action or proceeding  effected
without the consent of such indemnifying party.

            (d) If the indemnification  provided for in Section 8.5(a) or (b) is
unavailable  under  applicable  law to an  indemnified  party in  respect of any
losses, claims, damages or liabilities referred to therein, then each applicable
indemnifying  party,  in lieu of  indemnifying  such  indemnified  party,  shall
contribute to the amount paid or payable by such  indemnified  party as a result
of  such  losses,  claims,  damages  or  liabilities  in such  proportion  as is
appropriate  to reflect the relative fault of the Company on the one hand and of
the  holders  of  Registrable  Securities  on the other in  connection  with the
statements  or omissions  which  resulted in such losses,  claims,  damages,  or
liabilities,  as  well  as any  other  relevant  equitable  considerations.  The
relative  fault of the Company on the one hand and of the holders of Registrable
Securities on the other shall be determined by reference to, among other things,
whether  the  untrue or  alleged  untrue  statement  of a  material  fact or the
omission to state a material fact relates to information supplied by the Company
or by the holders of Registrable  Securities and the parties'  relative  intent,
knowledge,  access to  information  and  opportunity  to correct or prevent such
statement or omission.  The amount paid or payable by a party as a result of the
losses,  claims,  damages and  liabilities  referred to above shall be deemed to
include,  subject to the limitations  set forth in Section 8.5(c),  any legal or
other fees or  expenses  reasonably  incurred by such party in  connection  with
investigating  or defending any action or claim.  No person guilty of fraudulent
misrepresentation  (within the meaning of Section 11(f) of the  Securities  Act)
will be  entitled  to  contribution  from any  person  who is not guilty of such
fraudulent misrepresentation.

            (e)  Promptly  after  receipt  by  the  Company  or  any  holder  of
Securities of notice of the commencement of any action or proceeding, such party
will,  if a claim for  contribution  in respect  thereof  is to be made  against
another party (the "contributing  party"),  notify the contributing party of the
commencement  thereof; but the omission so to notify the contributing party will
not  relieve it from any  liability  which it may have to any other  party other
than for contribution hereunder. In case any such action, suit, or proceeding is
brought against any party,  and such party notifies a contributing  party of the
commencement  thereof,  the  contributing  party will be entitled to participate
therein with the  notifying  party and any other  contributing  party  similarly
notified.

            9.  Certain  Definitions.  For the  purposes of this  Agreement  the
following terms have the respective meanings set forth below:

            9.1. "Affiliate" means any person, corporation, firm or entity which
directly or indirectly  controls,  is controlled  by, or is under common control
with the indicated person, corporation, firm or entity.

            9.2. "Common Stock" means the Company's no par value Common Stock.


                                     - 14 -

<PAGE>

            9.3.  "Generally  Accepted  Accounting  Principles"  means generally
accepted accounting principles consistently applied.

            9.4. "Officers'  Certificate" means a certificate executed on behalf
of the Company by its President, Chairman of the Board, Chief Executive Officer,
Chief Financial Officer, Secretary and/or one of its other Vice-Presidents.

            9.5.  "Registrable  Securities"  means (i) the Common Stock or other
Stock  issuable  upon  conversion of the Bridge Notes and exercise of the Bridge
Warrants  purchased  pursuant to Section 1.1 or (ii) any other  shares of Common
Stock now owned or hereafter acquired by Purchasers  (whether Common Stock owned
directly or underlying convertible securities of the Company).

            9.6.  "Securities"  means the Bridge Notes,  the Bridge Warrants and
any other capital stock or Common Stock underlying the foregoing  whether issued
at the Closing or thereafter.

            9.7 "Securities Act" means, as of any given time, the Securities Act
of 1933, as amended, or any similar federal law then in force.

            9.8.  "Securities  Exchange  Act" means,  as of any given time,  the
Securities  Exchange Act of 1934, as amended, or any similar federal law then in
force.

            9.9.  "Securities and Exchange Commission" includes any governmental
body or agency succeeding to the functions thereof.

            9.10.  "Stock"  means any series of stock  other than  Common  Stock
issued upon conversion of the Bridge Notes.

            9.11. "Subsidiary" means any person, corporation,  firm or entity at
least the majority of the equity  securities (or  equivalent  interest) of which
are, at the time as of which any determination is being made, owned of record or
beneficially by the Company,  directly or indirectly,  through any Subsidiary or
otherwise.

            10. Company Indemnities. The Company agrees to indemnify, defend and
hold  the  Purchasers  and  their  officers,  directors,   partners,  employees,
consultants and agents (the "Purchasers' Indemnitees") harmless from and against
any  liability,  obligation,  claim,  cost,  loss,  judgment,  damage or expense
(including  reasonable  legal fees and expenses)  (collectively,  "Liabilities")
incurred  or suffered by any of the  Purchasers'  Indemnitees  as a result of or
arising out of or in connection with the Company's breach of any representation,
warranty, covenant or agreement of the Company contained herein.


                                     - 15 -

<PAGE>

            11. Miscellaneous.

            11.1.  Termination;  Survival  of  Representations,  Warranties  and
Covenants.   Except  as   otherwise   provided   for  in  this   Agreement   all
representations,   warranties,   covenants  and  agreements  contained  in  this
Agreement,  or in any document,  exhibit,  schedule or  certificate by any party
delivered in  connection  herewith  shall  survive the execution and delivery of
this  Agreement and the Closing Date and the  consummation  of the  transactions
contemplated  hereby,  regardless of any investigation made by the Purchasers or
on their behalf.

            11.2.  Expenses.  The  Company  shall  pay all its own  expenses  in
connection with this Agreement and the  transactions  contemplated  herein.  The
Company  agrees  to pay  promptly  and  save  the  Purchasers  harmless  against
liability  for  the  payment  all  expenses  incurred  by the  Company  and  the
Purchasers in connection with the preparation and  consummation of the Agreement
and the  transactions  contemplated  herein,  including  but not limited to: all
costs and expenses under Section 8, including without  limitation,  the costs of
preparing,  printing and filing with the Securities and Exchange  Commission the
Registration   Statement  and   amendments,   post-effective   amendments,   and
supplements  thereto;  preparing,  printing and delivering  exhibits thereto and
copies of the  preliminary,  final  and  supplemental  prospectuses;  preparing,
printing and delivering all selling documents,  including but not limited to the
stock and warrant certificates;  legal fees and disbursements of RubinBaum, LLP,
D2's counsel  (which amount shall not exceed  $13,000 and which shall be paid on
the Initial Closing Date) in connection with the preparation and consummation of
this Agreement and the  transactions  contemplated  herein,  including the legal
fees and costs of  negotiating  and  drafting  any  transaction  documents,  due
diligence and any necessary  regulatory filings (including,  without limitation,
the  Registration  Statement,  Forms 3, 4 and 5 and Schedule  13-D filings) (the
"Bridge Loan Costs"). The "Bridge Loan Costs" shall not include any underwriting
discounts or  commissions  incurred by a Purchaser  or costs and expenses  under
Section 8,  including,  without  limitation,  the  Registration  Costs  Exchange
Commission the Registration Statement and amendments, post-effective amendments,
and supplements thereto and preparing,  printing and delivering exhibits thereto
and copies of the preliminary,  final and supplemental  prospectuses  which such
costs shall in all cases be paid by the Company.  The provisions of this Section
shall survive any  termination  of this  Agreement in all  instances,  including
without limitation,  (i) if the transactions contemplated by this Agreement have
not been  consummated or (ii) if the  transactions  have been  terminated by the
Purchasers for any reason.

            11.3.  Amendments  and Waivers.  This Agreement and all exhibits and
schedules  hereto set forth the entire  agreement  and  understanding  among the
parties as to the  subject  matter  hereof and merges and  supersedes  all prior
discussions,  agreements and  understandings of any and every nature among them.
This  Agreement may be amended only by mutual  written  agreement of the Company
and the holders of a majority of principal  amount of the Bridge Notes,  and the
Company may take any action herein  prohibited or omit to take any action herein
required  to be  performed  by it,  and any breach of any  covenant,  agreement,
warranty or representation  may be waived,  only if the Company has obtained the
written consent or waiver of the holders of a majority of principal value of the
Bridge Notes. No course of dealing between or among any persons having


                                     - 16 -

<PAGE>

any interest in this  Agreement  will be deemed  effective  to modify,  amend or
discharge any part of this  Agreement or any rights or obligations of any person
under or by reason of this Agreement.

            11.4.  Successors and Assigns. This Agreement may not be assigned by
the Company  except with the prior written  consent of the holders of a majority
of principal value of the Bridge Notes. This Agreement shall be binding upon and
inure to the benefit of the Company and its permitted successors and assigns and
Purchasers and their successors and assigns. The provisions hereof which are for
Purchasers'  benefit as purchasers or holders of the Bridge Notes and the Bridge
Warrants are also for the benefit of, and enforceable by, any subsequent  holder
of such Bridge Notes and Bridge Warrants.

            11.5. Notices.  All notices,  demands and other communications to be
given or delivered  under or by reason of the provisions of this Agreement shall
be in writing and shall be deemed to have been given  personally  or when mailed
by certified or registered mail,  return receipt  requested and postage prepaid,
and addressed to the addresses of the  respective  parties set forth below or to
such  changed  addresses  as such  parties  may have fixed by notice;  provided,
however,  that any  notice of change of  address  shall be  effective  only upon
receipt:

                  If to the Company:

                  Bion Environmental Technologies, Inc.
                  555 17th Street, Suite 3310
                  Denver, CO  80202
                  Attn: Jon Northrop

                  With a Copy to:

                  Krys Boyle Freedman & Sawyer, P.C.
                  600 17th Street
                  Suite 2700 South Tower
                  Denver, CO 80202
                  Attn: Stanley F. ("Ted") Freedman, Esq.

                  If to the Purchasers:

                  At the  address  specified  on their  signature  page hereto.

                  If to D2:

                  D2 Co., LLC
                  5 East 59th Street, 3rd Floor
                  New York, NY  10022
                  Attn:  David Mitchell


                                     - 17 -

<PAGE>

                  With a Copies to:

                  Summerwind Restructuring, Inc.
                  64 Village Hill Drive
                  Dix Hills, New York  11746

                  and to

                  RubinBaum, LLP
                  30 Rockefeller Plaza
                  New York, NY  10112
                  Attn:  Michael J. Emont, Esq.

            11.6. Governing  Law. The validity,  performance,  construction  and
effect of this Agreement  shall be governed by the internal laws of the State of
New York without giving effect to such State's principles of conflict of laws.

            11.7. Counterparts.  This Agreement may be executed in any number of
counterparts  and,  notwithstanding  that any of the parties did not execute the
same counterpart,  each of such counterparts shall, for all purposes,  be deemed
an  original,  and all  such  counterparts  shall  constitute  one and the  same
instrument  binding on all of the parties  thereto.  Any  signature  received by
facsimile transmission shall, for all purposes, be deemed an original signature.

            11.8. Headings.  The headings of the Sections hereof are inserted as
a matter of convenience  and for reference  only and in no way define,  limit or
describe the scope of this Agreement or the meaning of any provision hereof.

            11.9.  Severability.  In  the  event  that  any  provision  of  this
Agreement or the application of any provision  hereof is declared to be illegal,
invalid or otherwise  unenforceable  by a court of competent  jurisdiction,  the
remainder of this Agreement shall not be affected except to the extent necessary
to delete such illegal,  invalid or unenforceable provision unless the provision
held invalid shall substantially  impair the benefit of the remaining portion of
this Agreement.

            11.10.  Rights of Holders Inter Se. Each Holder of securities  shall
have the  absolute  right to exercise or refrain  from  exercising  any right or
rights  which such Holder may have by reason of this  Agreement  or any security
including,  without  limitation,  the  right to  consent  to the  waiver  of any
obligation  of the Company  under this  Agreement and to enter into an agreement
with the Company for the purpose of modifying  this  Agreement or any  agreement
effecting  such  modification,  and such Holder shall not incur any liability to
any other  Holder or  Holders  of  securities  with  respect  to  exercising  or
refraining from exercising any such right or rights.

            11.11.  Exculpation  Among  Purchasers  and Holders.  Each Purchaser
acknowledges and agrees that it is not relying upon any other Purchaser,  or any
officer, director, employee partner


                                     - 18 -

<PAGE>

or affiliate of any such other  Purchaser,  in making its investment or decision
to invest in the Company or in monitoring such investment. Each Purchaser agrees
that no Purchaser nor any controlling person,  officer,  director,  shareholder,
partner,  agent or  employee  of any  Purchaser  shall be liable  for any action
heretofore or hereafter  taken or omitted to be taken by any of them relating to
or in connection with the Company or the securities, or both.

            11.12.  Actions by Purchasers.  Any actions permitted to be taken by
holders or Purchasers  of Bridge Notes and/or  Bridge  Warrants and any consents
required  to be  obtained  from the same under this  Agreement,  may be taken or
given only by, in the case of  consents  or actions  requiring  approval  of the
Purchasers,  by the  Purchasers,  and in all other  cases,  only by holders of a
majority  of (i) in the  case  of the  Bridge  Notes,  the  face  amount  of the
principal and (ii) in the case of the Bridge Warrants,  the number of underlying
shares  of  Common  Stock,  and if such  holders  constituting  a  majority  the
("Majority  Holders") as set forth in (i) or (ii) above or the  Purchasers  take
any action or grant any consent, such action or consent shall be deemed given or
taken by all holders or Purchasers' who shall be bound by the decision or action
taken by the Majority  Holders or the  Purchasers  without any  liability on the
part of the Majority Holders or the Purchasers to any other holder of securities
hereto.

            11.13.  Consent to  Jurisdiction.  The  parties  hereto  irrevocably
consent  to the  jurisdiction  of the courts of the State of New York and of any
federal court located in such State in connection  with any action or proceeding
arising  out of or  relating  to this  Agreement,  any  document  or  instrument
delivered pursuant to, in connection with or simultaneously with this Agreement,
or a breach of this  Agreement or any such document or  instrument.  In any such
action or proceeding,  each party hereto waives personal service of any summons,
complaint  or other  process  and agrees  that  service  thereof  may be made in
accordance with Section 11.5.  Within 30 days after such service,  or such other
time as may be mutually  agreed upon in writing by the attorneys for the parties
to such action or  proceeding,  the party so served  shall appear or answer such
summons, complaint or other process.

      IN WITNESS WHEREOF,  the parties hereto have executed this Agreement as of
the day and year first above written.

                                          BION ENVIRONMENTAL TECHNOLOGIES,
                                          INC.

                                          By:
                                             -----------------------------------
                                                  Name:
                                                  Title:


                                     - 19 -

<PAGE>

                            PURCHASER SIGNATURE PAGE

Units Subscribed For:                        -----------------------------------
                                             PURCHASER NAME
- ------------------------------
                                             Address:

                                             -----------------------------------

                                             -----------------------------------

Aggregate Purchase Price:                    -----------------------------------

                                             By:
                                                --------------------------------
                                                   Name:
- ------------------------------                     Title:


                                     - 20 -



                                                                       Exhibit 5

THIS NOTE IS NOT  TRANSFERABLE  WITHOUT  THE  EXPRESS  WRITTEN  CONSENT  OF BION
ENVIRONMENTAL TECHNOLOGIES,  INC. (THE "COMPANY"). THE SECURITIES REPRESENTED BY
THIS  NOTE HAVE NOT BEEN  REGISTERED  UNDER  THE  SECURITIES  ACT OF 1933 OR ANY
APPLICABLE STATE SECURITIES LAWS, AND MAY NOT BE SOLD, OFFERED FOR SALE, PLEDGED
OR  HYPOTHECATED  OR  OTHERWISE  TRANSFERRED  IN THE  ABSENCE OF A  REGISTRATION
STATEMENT  IN  EFFECT  WITH  RESPECT  TO THE  SECURITIES  UNDER  SUCH  ACT OR AN
EXEMPTION  THEREFROM.  ANY SUCH TRANSFER MAY ALSO BE SUBJECT TO APPLICABLE STATE
SECURITIES LAWS.

                      BION ENVIRONMENTAL TECHNOLOGIES, INC.

                                                                        No. B-__
                             Convertible Bridge Note

$100,000                                                      New York, New York
                                                              ------------------

      Bion  Environmental   Technologies,   Inc.  a  Colorado  corporation  (the
"Company"),  for  value  received,  hereby  promises  to pay to D2  Co.,  LLC or
registered  assigns (the  "Holder"),  the principal sum of one hundred  thousand
dollars  ($100,000.00),  with  interest  from  the  date  of  issuance  of  this
Convertible  Bridge Note on the unpaid principal  balance at a rate equal to ten
percent (10%) per annum,  July 1, 2001 (the "Maturity  Date").  Payment shall be
made  at  such  place  as  designated  by the  Holder  upon  surrender  of  this
Convertible  Bridge  Note,  and shall be in such coin or  currency of the United
States  of  America  as at the time of  payment  shall be legal  tender  for the
payment of public and private debts.  Interest shall be computed on the basis of
a 360-day year of twelve 30-day months. This Convertible Bridge Note is one of a
duly authorized issue of Bion Environmental  Technologies,  Inc. 10% Convertible
Bridge Notes in a private  offering of a minimum  aggregate  principal amount of
$1,000,000 and a maximum aggregate principal amount of $5,000,000  (individually
a "Note" and  collectively  the "Notes")  issued  pursuant to a Note and Warrant
Purchase Agreement of even date herewith between the Company, the Holder and the
other parties thereto (the "Purchase Agreement").


<PAGE>

SECTION 1. Prepayment

      This Note  (including  interest  accrued on the  principal  hereof) may be
prepaid by the Company, at any time without penalty or premium.

SECTION 2.  Mandatory Prepayment or Conversion

      (a)  Prepayment  or  Conversion.  In the event the Company shall issue any
capital stock (or instrument  convertible  into capital stock)  ("Stock") of the
Company  subsequent to the issuance of at least $1,000,000 of Convertible Bridge
Notes  pursuant to the offering in which this Note was issued,  for an aggregate
purchase  price of at least  $5,000,000  (exclusive  of the sale of the  Notes),
pursuant to a public or private offering (an "Offering"), then, at the Company's
option,  either (i) the  Company  shall  prepay the  Notes,  without  penalty or
premium, no later than 30 days following the closing of the Offering or (ii) the
Notes shall be converted  ("Conversion") into such number of shares of the Stock
of the Company as is equal to the  Conversion  Amount (as defined below) divided
by the then current  Conversion Price (as defined below).  The Conversion Amount
shall be the aggregate principal value of the Notes held by such Holder plus any
accrued and unpaid  interest.  The Conversion  Price shall be the price paid for
one share of Stock issued in the  Offering,  subject to  adjustment  as provided
below.

      (b) Conversion Procedures.  Each Holder of Notes shall surrender the Notes
at the offices of the Company,  which Notes shall be  accompanied by irrevocable
written  notice to the Company  specifying  the name or names (with  address) in
which a certificate or certificates evidencing shares of Stock are to be issued.

      The Company shall deliver to the holder of the Notes, or to the nominee or
nominees of such person,  certificates  evidencing  the number of full shares of
Stock to which such person shall be entitled as aforesaid,  together with a cash
adjustment of any fraction of a share as  hereinafter  provided.  Subject to the
following provisions of this paragraph,  such conversion shall be deemed to have
been made as of the date of such  notice and the person or persons  entitled  to
receive Stock deliverable upon conversion of such Notes shall be treated for all
purposes as the record  holder or holders of such Stock on such date;  provided,
however,  that the Company  shall not be required to convert any Notes while the
stock transfer  books of the Company are closed for any purpose,  but the giving
of notice  during  any  period  while  such  books are so  closed  shall  become
effective for conversion  immediately upon the reopening of such books as if the
notice had been given on the date of such reopening, and the conversion shall be
at the conversion rate in effect on such date.

      (c)  Protection  in  Case of a  Merger,  Etc.  (i) In case of any  capital
reorganization or reclassification,  or any consolidation or merger to which the
Company is a party other than a merger or  consolidation in which the Company is
the  continuing  corporation,  or in case of any sale or  conveyance  to another
entity of the  property  of the Company as an  entirety  or  substantially  as a
entirety,  or in the case of any statutory  exchange of securities  with another
corporation (including


                                      - 2 -

<PAGE>

any exchange  effected in connection with a merger of a third  corporation  into
the Company), the Holder of this Note shall have the right thereafter to receive
on the conversion of this Note the kind and amount of securities,  cash or other
property  which the Holder  would have  owned or have been  entitled  to receive
immediately after such reorganization, reclassification,  consolidation, merger,
statutory exchange,  sale or conveyance had this Note been converted into shares
of Common Stock immediately prior to the effective date of such  reorganization,
reclassification,  consolidation, merger, statutory exchange, sale or conveyance
and in any such case, if necessary,  appropriate adjustment shall be made in the
application  of the  provisions  set forth in this Section 2 with respect to the
rights and  interests  thereafter of the Holder of this Note to the end that the
provisions set forth in this Section 2 shall thereafter  correspondingly be made
applicable,  as nearly as may  reasonably be, in relation to any shares of stock
or other  securities or property  thereafter  deliverable on the Note. The above
provisions  of this  Subsection  (c)(i)  shall  similarly  apply  to  successive
reorganizations,    reclassifications,    consolidations,   mergers,   statutory
exchanges,  sales or  conveyances.  The Company  shall require the issuer of any
shares of stock or other  securities or property  thereafter  deliverable on the
exercise  of  this  Note  to be  responsible  for  all  of  the  agreements  and
obligations  of  the  Company  hereunder.  Notice  of any  such  reorganization,
reclassification,  consolidation, merger, statutory exchange, sale or conveyance
and of said provisions so proposed to be made, shall be mailed to the Holders of
the  Notes  not  less  than  30  days  prior  to  such  event.  A sale of all or
substantially  all of the assets of the Company for a  consideration  consisting
primarily  of  securities  shall be deemed a  consolidation  or  merger  for the
foregoing purposes.

                  (ii) In case any  event  shall  occur as to  which  the  other
provision  of this  Section  2 is not  strictly  applicable  but as to which the
failure to make any adjustment  would not fairly  protect the conversion  rights
represented by this Note in accordance with the essential  intent and principles
hereof  then,  in each such case,  the  Holders  of Notes may  appoint a firm of
independent  public  accountants  of  recognized  national  standing  reasonably
acceptable to the Company,  which shall give their opinion as to the adjustment,
if  any,  on a  basis  consistent  with  the  essential  intent  and  principles
established herein, necessary to preserve the conversion rights. Upon receipt of
such  opinion,  the Company will  promptly  mail a copy thereof to the Holder of
this  Note  and  shall  make the  adjustments  described  therein.  The fees and
expenses of such independent public accountants shall be borne by the Company.

      (d) Reservation of Shares;  Transfer Taxes;  Etc. The Company shall at all
times reserve and keep  available,  out of its authorized and unissued shares of
Common Stock,  solely for the purpose of effecting the  conversion of the Notes,
such number of shares of its Common Stock as shall be  sufficient  to effect the
conversion of all Notes from time to time outstanding. The Company shall use its
best  efforts  from time to time,  in  accordance  with the laws of the State of
Colorado,  to increase the authorized number of shares of Common Stock if at any
time the  number  of  shares  of  Common  Stock  not  outstanding  shall  not be
sufficient to permit the conversion of all the  then-outstanding  Notes.  In the
event the Company  intends to offer Stock other than Common  Stock,  the Company
shall  authorize the issuance of  sufficient  shares of such Stock to permit the
conversion of all the then-outstanding Notes.


                                      - 3 -

<PAGE>

      The Company shall pay any and all issue or other taxes that may be payable
in  respect of any issue or  delivery  of shares of Stock on  conversion  of the
Notes. The Company shall not,  however,  be required to pay any tax which may be
payable in respect of any  transfer  involved  in the issue or delivery of Stock
(or other  securities or assets) in a name other than that in which the Notes so
converted  were  registered,  and no such issue or delivery shall be made unless
and until the person requesting such issue has paid to the Company the amount of
such tax or has established,  to the satisfaction of the Company,  that such tax
has been paid.

SECTION 3. Fractional Shares

      The Company  shall not be required to issue  fractions of shares of Common
Stock or other  Stock of the Company  upon the  conversion  of the Note.  If any
fraction of a share would be issuable on the Conversion of the Note, the Company
shall purchase such fraction for an amount in cash equal to the same fraction of
the closing price for the Common Stock on the trading date immediately preceding
the date of exercise of the  conversion  or the fair market  value of such other
Stock, as determined in good faith by the Board of Directors of the Company.

SECTION 4. Affirmative Covenants of the Company.

      The  Company  covenants  and agrees that until the payment in full of this
Note, the Company shall:

      (a) Existence;  Business.  (i) Preserve,  renew and keep in full force and
effect its legal existence and (ii) obtain, preserve,  renew, extend and keep in
full force and effect the licenses, permits, authorizations, patents, trademarks
and trade names material to its business.

      (b) Use of Proceeds. Use the proceeds of the Notes of this issue solely as
set forth in Section 7.3 of the Purchase Agreement.

      (c) Reports. Furnish to the Holder, at the time furnished to the Company's
shareholders,  reports furnished  generally to the Company's  shareholders,  and
copies of Current Reports on Form 8-K.

      (d) Notice of Events of  Default.  Furnish to the  Holder  prompt  written
notice of any Event of  Default,  specifying  the nature and extent  thereof and
corrective action, if any, proposed to be taken with respect thereto.

      (e) Authorization of Stock Issuable Upon Conversion. Authorize and reserve
a sufficient  number of its shares of Stock and Common  Stock for issuance  upon
Conversion of the Note.


                                      - 4 -

<PAGE>

SECTION 5. Negative Covenants of the Company.

      The Company covenants and agrees with the Holder that until the payment in
full of this Note, the Company shall not:

      (a) Dividends and  Distributions.  Declare or pay, directly or indirectly,
any  dividend  or make any  other  distribution  (by  reduction  of  capital  or
otherwise), whether in cash, property, securities or a combination thereof, with
respect to any shares of its capital  stock or directly  or  indirectly  redeem,
purchase,  retire or otherwise  acquire for value any shares of any class of its
capital stock or set aside any amount for any such purpose,  except as permitted
by Section 7.14 of the Purchase Agreement.

      (b) No Impairment.  By amendment of its charter or through reorganization,
consolidation,  merger,  dissolution,  sale of  assets  or any  other  voluntary
action, avoid or seek to avoid the observance or performance of any of the terms
of this Note,  but will at all times in good faith assist in the carrying out of
all such  terms and in the  taking of all such  action  as may be  necessary  or
appropriate  in order to protect  the rights of the Holder of this Note  against
impairment.

SECTION 6. Events of Default Defined.

      The following shall each constitute an "Event of Default" hereunder:

      (a) the  failure of the  Company to make any  payment of  principal  of or
interest on this Note when due and payable;

      (b) the failure of the Company to observe or perform any  covenant in this
Note or in the  Purchase  Agreement,  and  such  failure  shall  have  continued
unremedied for a period of five (5) days;

      (c) if the Company shall:

            (1) admit in writing its  inability  to pay its debts  generally  as
                they become due,

            (2) file a petition in bankruptcy or a petition to take advantage of
                any insolvency act,

            (3) make an assignment for the benefit of its creditors,

            (4) consent to the  appointment  of a  receiver  of itself or of the
                whole or any substantial part of its property,


                                      - 5 -

<PAGE>

            (5) on a petition in  bankruptcy  filed  against,  be  adjudicated a
                bankrupt, or

            (6) file a petition or answer seeking  reorganization or arrangement
                under the federal bankruptcy laws or any other applicable law or
                statute of the United States of America or any state thereof;


      (d) if a court of competent jurisdiction shall enter an order, judgment or
decree appointing, without the consent of the Company, a receiver of the Company
or of the whole or any substantial part of its property, or approving a petition
filed against it seeking  reorganization or arrangement of the Company under the
federal  bankruptcy  laws or any other  applicable  law or statute of the United
States of America or any State thereof, and such order, judgment or decree shall
not be vacated or set aside or stayed  within  thirty (30) days from the date of
entry thereof;

      (e) if,  under the  provisions  of any other law for the  relief or aid of
debtors, any court of competent  jurisdiction shall assume custody or control of
the  Company  or the  whole or any  substantial  part of its  property  and such
custody or control  shall not be  terminated  or stayed  within thirty (30) days
from the date of assumption of such custody or control;

      (f) the liquidation, dissolution or winding up of the Company;

      (g) the failure of the  shareholders to authorize and approve the issuance
of these Notes or the issuance of the Stock  underlying  these Notes, the Bridge
Warrants  (as such terms are defined in the Purchase  Agreement),  or any Common
Stock  underlying  the foregoing to the extent such  authorization  is necessary
pursuant to the rules of the Nasdaq National Market or any other applicable law,
rule or regulation; or

      (h) A final  judgment or  judgments  for the payment of money in excess of
$100,000  in  the   aggregate   shall  be  rendered  by  one  or  more   courts,
administrative or arbitral tribunals or other bodies having jurisdiction against
the Company and the same shall not be discharged (or provision shall not be made
for such  discharge),  or a stay of  execution  thereof  shall not be  procured,
within 30 days from the date of entry thereof and the Company shall not,  within
such 30-day  period,  or such longer period  during which  execution of the same
shall have been stayed,  appeal therefrom and cause the execution  thereof to be
stayed during such appeal.

SECTION 7. Remedies upon Event of Default.

      (a) Upon the occurrence of an Event of Default,  (i) the entire  principal
amount of, and all accrued and unpaid interest on, this Note shall automatically
become immediately due and payable without presentment, demand, protest or other
formalities  of any  kind,  all of which  are  hereby  expressly  waived  by the
Company.  In addition,  the Holder may take any action available to it under the
Purchase Agreement or at law or in equity or by statute or otherwise.


                                      - 6 -

<PAGE>

      (b) No remedy herein conferred upon the Holder of this Note is intended to
be  exclusive  of any other  remedy  and each and  every  such  remedy  shall be
cumulative and shall be in addition to every other remedy given hereunder or now
or hereafter existing at law or in equity or by statute or otherwise.

SECTION 8. Note Register.

      (a) The Company  shall keep at its principal  executive  office a register
(herein sometimes referred to as the "Note Register"), in which, subject to such
reasonable  regulations  as it may  prescribe,  but at its  expense  (other than
transfer  taxes,  if any),  the Company shall provide for the  registration  and
transfer of this Note.

      (b) Whenever this Note shall be  surrendered  at the  principal  executive
office  of the  Company  for  transfer  or  exchange,  accompanied  by a written
instrument  of  transfer in form  reasonably  satisfactory  to the Company  duly
executed by the Holder  hereof or his attorney duly  authorized in writing,  the
Company shall execute and deliver in exchange  therefor a new Note or Notes,  as
may be requested by such Holder,  in the same aggregate  unpaid principal amount
and  payable  on the same date as the  principal  amount of the Note or Notes so
surrendered;  each such new Note shall be dated as of the date to which interest
has been paid on the unpaid principal amount of the Note or Notes so surrendered
and shall be in such  principal  amount and  registered in such name or names as
such Holder may designate in writing.

      (c) Upon receipt by the Company of evidence reasonably  satisfactory to it
of the loss,  theft,  destruction  or  mutilation  of this Note and of indemnity
reasonably  satisfactory  to it, and upon  reimbursement  to the  Company of all
reasonable expenses  incidental thereto,  and upon surrender and cancellation of
this Note (in case of  mutilation)  the Company will make and deliver in lieu of
this Note a new Note of like tenor and unpaid  principal  amount and dated as of
the date to which interest has been paid on the unpaid  principal amount of this
Note in lieu of which such new Note is made and delivered.

SECTION 9. Registration Under Securities Act of 1933.

      The Holder of this Note  shall have  registration  rights as  provided  in
Section 8 of the Purchase  Agreement,  with respect to the  Securities  issuable
upon  conversion  of the  Notes.  If the  Holder is not a party to the  Purchase
Agreement,  by  acceptance  of this  Note,  the  Holder  agrees to  comply  with
provisions  of Section 8 of the  Purchase  Agreement to the same extent as if it
were a party thereto.


                                      - 7 -

<PAGE>

SECTION 10. Miscellaneous.

      (a) Amendments and Waivers.  The holders of a majority in principal amount
of  outstanding  Notes of this  issue  may  waive or  otherwise  consent  to the
amendment  of any of the  provisions  hereof,  provided  that no such  waiver or
amendment may reduce the principal  amount of or interest on any of the Notes of
this  issue or change  the  stated  maturity  of the  principal  or  reduce  the
percentage  of holders of Notes of this  issue  necessary  to waive or amend the
provisions of this Note, without the consent of each holder of any Note affected
thereby.

      (b) Restrictions on  Transferability.  In addition to the restrictions set
forth in Section 9 of this Note,  the  securities  represented by this Note have
been acquired for investment and have not been  registered  under the Securities
Act of  1933,  as  amended,  or  the  securities  laws  of any  state  or  other
jurisdiction.  Without  such  registration,  such  securities  may not be  sold,
pledged,  hypothecated or otherwise  transferred,  except pursuant to exemptions
from the Securities  Act of 1933, and the securities  laws of any state or other
jurisdiction.  Notwithstanding  the  above,  the  holder  of this  Note has been
provided  the  registration  rights  contained  in  Section  8 of  the  Purchase
Agreement with respect to the shares of the Company's  Common Stock which may be
acquired upon the Conversion of the Note.

      (c)  Forbearance  from  Suit.  No  holder  of  Notes of this  issue  shall
institute any suit or proceeding for the enforcement of the payment of principal
or interest unless the holders of at least a majority in principal amount of all
of the outstanding Notes of this issue join in such suit or proceeding.

      (d)  Governing  Law.  This Note  shall be  governed  by and  construed  in
accordance  with the laws of the  State of New York,  excluding  the body of law
relating to conflict of laws. Notwithstanding anything to the contrary contained
herein, in no event may the effective rate of interest  collected or received by
the Holder exceed that which may be charged, collected or received by the Holder
under applicable law.

      (e)  Interpretation.  If any term or  provision of this Note shall be held
invalid,  illegal  or  unenforceable,  the  validity  of  all  other  terms  and
provisions hereof shall in no way be affected thereby.

      (f)  Successors  and Assigns.  This Note shall be binding upon the Company
and its  successors and assigns and shall inure to the benefit of the Holder and
its successors and assigns.

      (g) Notices. All notices, requests,  consents and demands shall be made in
writing  and shall be mailed  postage  prepaid,  or  delivered  by hand,  to the
Company or to the Holder thereof at their  respective  addresses set forth below
or to such other  address  as may be  furnished  in  writing to the other  party
hereto:

      If to the Holder: At the address shown on Schedule A attached hereto.


                                      - 8 -

<PAGE>

        If to the Company:  Bion Environmental Technologies, Inc.
                            555 17th Street, Suite 3310
                            Denver, CO  80202
                            Attention: Chief Executive Officer

      (h)  Saturdays,  Sundays,  Holidays.  If any date  that may at any time be
specified  in this Note as a date for the making of any payment of  principal or
interest under this Note shall fall on Saturday, Sunday or on a day which in New
York  shall be a legal  holiday,  then the date for the  making of that  payment
shall be the  next  subsequent  day  which is not a  Saturday,  Sunday  or legal
holiday.

      (i) Purchase Agreement. This Note is subject to the terms contained in the
Purchase  Agreement dated the date hereof between the Company and the purchasers
of the Notes and the holder of this Note is  entitled  to the  benefits  of such
Purchase  Agreement  and may, in addition to any rights  hereunder,  enforce the
agreements of the Company  contained  therein and exercise the remedies provided
for thereby or otherwise available in respect thereof.

      IN WITNESS WHEREOF,  this Note has been executed and delivered as a sealed
instrument on the date first above written by the duly authorized representative
of the Company.

ATTEST:                                       BION ENVIRONMENTAL
                                              TECHNOLOGIES, INC.

- -----------------------                       By:
                                                 -------------------------------
                                                   Name:
                                                   Its:

(Corporate Seal)


                                      - 9 -

<PAGE>

                                   Schedule A

         Holder:

                  D2 Co., LLC
                  5 East 59th Street, 3rd Floor
                  New York, NY  10022


                                     - 10 -



                                                                       Exhibit 6

THIS BRIDGE WARRANT HAS BEEN ISSUED IN RELIANCE UPON THE  REPRESENTATION  OF THE
HOLDER THAT IT HAS BEEN  ACQUIRED  FOR  INVESTMENT  PURPOSES AND NOT WITH A VIEW
TOWARDS THE RESALE OR OTHER  DISTRIBUTION  THEREOF.  NEITHER THIS BRIDGE WARRANT
NOR THE SHARES  ISSUABLE  UPON THE  EXERCISE  OF THIS BRIDGE  WARRANT  HAVE BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED.

                      BION ENVIRONMENTAL TECHNOLOGIES, INC.

                                 Bridge Warrant

Bridge Warrant to Subscribe
for 30,000 shares                                             ------------------

                          Void After December 31, 2004

      THIS  CERTIFIES  that, for value  received,D2  Co., LLC, or its registered
assigns  ("Holder"),  is  entitled  to  subscribe  for and  purchase  from  Bion
Environmental Technologies, Inc., a Colorado corporation (hereinafter called the
"Company"),  at the price of $2.375 per share  (such  price as from time to time
adjusted as hereinafter  provided being hereinafter called the "Warrant Price"),
at any time prior to December 31, 2004 (the "Warrant  Expiration  Date"),  up to
30,000(subject   to  adjustment  as   hereinafter   provided)   fully  paid  and
nonassessable  shares of Common  Stock,  no par value per share,  of the Company
(hereinafter called the "Common Stock"), subject, however, to the provisions and
upon the terms and  conditions  hereinafter  set forth.  This Bridge Warrant was
issued pursuant to a certain Note and Warrant  Purchase  Agreement,  dated as of
________________ (the "Purchase Agreement"),  among the Company, D2 Co., LLC and
certain other parties and the rights and benefits  contained therein shall inure
to the  benefit of all  subsequent  holders of this Bridge  Warrant.  The Bridge
Warrants issued  pursuant to the Purchase  Agreement and any warrant or warrants
subsequently   issued  upon  exchange  or  transfer   thereof  are   hereinafter
collectively called the "Bridge  Warrants.""Registered Holder" shall mean, as to
any Bridge  Warrant and as of any  particular  date the person in whose name the
certificate  representing the Bridge Warrant shall be registered on that date on
the books maintained by the Company pursuant to Section 3(b).

      Section 1. Exercise of Bridge Warrant.

            (a) Method of Exercise.  The rights  represented by this Warrant may
be exercised by the holder hereof,  in whole at any time or from time to time in
part, but not as to a fractional share of Common Stock, by the surrender of this
Warrant (properly  endorsed) at the office of the Company as it may designate by
notice in writing to the holder  hereof at the address of such holder  appearing
on the books of the Company,  and as further provided below in this Section 1 by
payment to the

                                      - 1 -

<PAGE>

Company of the Warrant Price in cash or by certified or official bank check, for
each share being purchased.

            (b) Delivery of  Certificates.  Etc. In the event of any exercise of
the rights represented by this Bridge Warrant, a certificate or certificates for
the shares of Common Stock so  purchased,  registered in the name of the holder,
shall be delivered to the holder hereof within a reasonable  time, not exceeding
ten days, after the rights represented by this Bridge Warrant shall have been so
exercised;  and,  unless this Bridge  Warrant has expired,  a new Bridge Warrant
representing the number of shares (except a remaining fractional share), if any,
with  respect to which this Bridge  Warrant  shall not then have been  exercised
shall also be issued to the holder hereof within such time.  The person in whose
name any  certificate for shares of Common Stock is issued upon exercise of this
Bridge  Warrant  shall for all  purposes  be deemed to have become the holder of
record of such shares on the date on which the Bridge  Warrant  was  surrendered
and payment of the Warrant Price and any applicable taxes was made, except that,
if the date of such  surrender and payment is a date on which the stock transfer
books of the Company are closed,  such person shall be deemed to have become the
holder of such shares at the close of business  on the next  succeeding  date on
which the stock transfer books are open.

      2. Reservation of Shares; Listing; Payment of Taxes; etc.

            (a) The Company covenants that it will at all times reserve and keep
available out of its  authorized  Common Stock,  solely for the purpose of issue
upon exercise of Bridge Warrant,  such number of shares of Common Stock as shall
then be  issuable  upon the  exercise of all  outstanding  Bridge  Warrant.  The
Company  covenants  that all shares of Common Stock which shall be issuable upon
exercise of the Bridge  Warrant  shall,  at the time of delivery  (assuming full
payment of the purchase price thereof),  be duly and validly issued, fully paid,
nonassessable  and free from all issuance taxes,  liens and charges with respect
to the issue thereof including,  without  limitation,  adverse claims whatsoever
(with the exception of claims arising through the acts of the Registered Holders
themselves and except as arising from  applicable  Federal and state  securities
laws),  that the  Company  shall have paid all taxes,  if any, in respect of the
original  issuance  thereof and that upon  issuance  such shares,  to the extent
applicable,  shall be listed  on, or  included  in,  the Stock  Market.  As used
herein,  "Stock Market" shall mean the principal national securities exchange on
which the Common  Stock is listed or admitted to trading or, if the Common Stock
is not listed or admitted to trading on any national securities exchange,  shall
mean NASDAQ or, if the Common Stock is not quoted on Nasdaq,  shall mean the OTC
Bulletin Board or, if the Common Stock is not quoted on the OTC Bulletin  Board,
shall mean the  over-the-counter  market as  furnished  by any NASD  member firm
selected from time to time by the Company for that purpose.

            (b) The Company  covenants that if any securities to be reserved for
the purpose of exercise of the Bridge  Warrant  hereunder  require  registration
with,  or  the  approval  of,  any  governmental  authority  under  any  federal
securities  law before such  securities  may be validly issued or delivered upon
such  exercise,  then the  Company  will in good faith and as  expeditiously  as
reasonably  possible,  endeavor to secure such  registration  or  approval.  The
Company  will  use  reasonable  efforts  to  obtain  appropriate   approvals  or
registrations under state "blue sky" securities


                                      - 2 -

<PAGE>

laws;  provided,  that the Company shall not be required to qualify as a foreign
corporation  or file a general or  limited  consent to service of process in any
such  jurisdictions  or make any changes in its capital  structure  or any other
aspects of its business or enter into any agreements with blue sky  commissions,
including any agreement to escrow shares of its capital  stock.  With respect to
any such securities, however, Bridge Warrants may not be exercised by, or shares
of Common  Stock  issued  to, any  Registered  Holder in any state in which such
exercise would be unlawful.

            (c) The Company  shall pay all  documentary,  stamp or similar taxes
and other similar  governmental  charges that may be imposed with respect to the
issuance  of Bridge  Warrants,  or the  issuance  or delivery of any shares upon
exercise of the Bridge Warrants; provided, however, that if the shares of Common
Stock are to be delivered in a name other than the name of the Registered Holder
on any Bridge  Warrant  being  exercised,  then no such  delivery  shall be made
unless  the person  requesting  the same has paid to the  Company  the amount of
transfer taxes or charges incident thereto, if any.

      3. Exchange and Registration of Transfer.

            (a) This Bridge  Warrant may be exchanged for another Bridge Warrant
representing an equal  aggregate  number of Bridge Warrants of the same class or
may be transferred in whole or in part, by surrendering it to the Company at its
corporate  office.  Upon  satisfaction of the terms and provisions  hereof,  the
Company shall execute, and the Company shall sign, issue and deliver in exchange
therefor,  such new Bridge Warrant or Bridge Warrants that the Registered Holder
making the exchange shall be entitled to receive.

            (b) The Company shall keep at its office books in which,  subject to
such  reasonable  regulations  as it may  prescribe,  it shall  register  Bridge
Warrants and any transfers thereof in accordance with its regular practice. Upon
due  presentment  for  registration  of transfer  of any Bridge  Warrant at such
office, the Company shall execute and the Company shall issue and deliver to the
transferee or transferees a new Bridge Warrant or Bridge  Warrants  representing
an equal aggregate number of Bridge Warrants.

            (c) With respect to all Bridge Warrants  presented for  registration
or transfer, or for exchange or exercise,  the subscription form attached hereto
shall be duly endorsed, or be accompanied by a written instrument or instruments
of transfer and subscription, in form satisfactory to the Company, duly executed
by the Registered Holder or his attorney-in-fact duly authorized in writing.

            (d) Prior to due presentment for  registration of transfer  thereof,
the Company may deem and treat the  Registered  Holder of any Bridge  Warrant as
the  absolute  owner  thereof  (notwithstanding  any  notations  of ownership or
writing  thereon  made by anyone  other  than a duly  authorized  officer of the
Company)  for all  purposes  and  shall  not be  affected  by any  notice to the
contrary. The Bridge Warrants,  which are being offered in Units with the Bridge
Notes pursuant to


                                      - 3 -

<PAGE>

the  Purchase   Agreement,   will   immediately  be  detachable  and  separately
transferable from the Bridge Notes.

      4.  Loss  or   Mutilation.   Upon  receipt  by  the  Company  of  evidence
satisfactory  to  it of  the  ownership  of  and  loss,  theft,  destruction  or
mutilation of any Bridge Warrant and (in case of loss,  theft or destruction) of
indemnity satisfactory to it, and (in the case of mutilation) upon surrender and
cancellation  thereof,  the  Company  shall  execute,  sign and  deliver  to the
Registered   Holder  in  lieu  thereof  a  new  Bridge  Warrant  of  like  tenor
representing an equal aggregate number of Bridge Warrants.

      5. Redemption.

            (a) At any time  after the first  anniversary  of the Final  Closing
Date (as defined in the Purchase  Agreement),  so long as the Company has caused
the Registrable  Securities to become registered in accordance with Section 8 of
the  Purchase  Agreement,  the Company  may,  at its  option,  redeem the Bridge
Warrants at a price of $0.05 per share of Common Stock, as may adjusted pursuant
to Section 6 (the  Redemption  Price"),  provided the Closing Bid Price  exceeds
250% of the  Warrant  Price  on the  Initial  Closing  Date (as  defined  in the
Purchase  Agreement)  per share of Common  Stock for at least 20 trading days in
any 30  consecutive  trading day period  ending  three days prior to the date of
notice of redemption  (which shall be the date of mailing of such  notice).  All
outstanding Bridge Warrants must be redeemed if any are redeemed. The date fixed
for redemption of the Bridge  Warrants is referred to herein as the  "Redemption
Date." For purposes  hereof,  the "Closing Bid Price" for each trading day shall
be the reported per share  closing bid price of the Common Stock  regular way on
the Stock Market on such trading day.

            (b) If the conditions set forth in Subsection  5(a) are met, and the
Company  desires to exercise its right to redeem the Bridge  Warrants,  it shall
mail a notice of  redemption  to each of the  Registered  Holders  of the Bridge
Warrants  to be  redeemed,  first  class,  postage  prepaid,  not later than the
sixtieth  day  before the date fixed for  redemption,  at their last  address as
shall appear on the records  maintained  pursuant to Subsection 3(b). Any notice
mailed in the manner provided herein shall be conclusively presumed to have been
duly given whether or not the Registered Holder receives such notice.

            (c) The notice of redemption shall specify (i) the Redemption Price,
(ii) the  Redemption  Date,  (iii) the place where the Bridge  Warrants shall be
delivered and the redemption  price paid and (iv) that the right to exercise the
Bridge Warrants shall terminate at 5:00 P.M. (New York time) on the business day
immediately  preceding the  Redemption  Date. No failure to mail such notice nor
any defect  therein or in the mailing  thereof  shall affect the validity of the
proceedings  for such  redemption  except as to a Registered  Holder (a) to whom
notice was not mailed or (b) whose  notice was  defective.  An  affidavit of the
Secretary or an Assistant Secretary of the Company that notice of redemption has
been mailed shall, in the absence of fraud, be prima facie evidence of the facts
stated therein.


                                      - 4 -

<PAGE>

            (d) Any right to exercise a Bridge  Warrant shall  terminate at 5:00
P.M. (New York time) on the business day  immediately  preceding the  Redemption
Date. On and after the  Redemption  Date,  Holders of the Bridge  Warrants shall
have no further rights except to receive, upon surrender of the Bridge Warrants,
the Redemption Price.

            (e) From and after the Redemption  Date,  the Company shall,  at the
place specified in the notice of redemption,  upon presentation and surrender to
the  Company  by or on behalf of the  Registered  Holder  thereof of one or more
Bridge Warrants to be redeemed,  deliver or cause to be delivered to or upon the
written order of such Holder a sum in cash equal to the redemption price of such
Bridge  Warrants.  From and after the  Redemption  Date and upon the  deposit or
setting  aside by the  Company  of a sum  sufficient  to redeem  all the  Bridge
Warrants  called for  redemption,  such Bridge  Warrants shall expire and become
void and all  rights  hereunder,  except  the right to  receive  payment  of the
Redemption Price, shall cease.

      6.  Adjustment  of Warrant  Price and Number of Shares of Common  Stock or
Bridge  Warrants.  Upon each  adjustment of the Warrant  Price  pursuant to this
Section  6, the total  number of shares  of Common  Stock  purchasable  upon the
exercise of each Bridge Warrant shall  (subject to the  provisions  contained in
Subsection  6(c)) be such number of shares  (calculated  to the  nearest  tenth)
purchasable at the Warrant Price in effect  immediately prior to such adjustment
multiplied  by a fraction,  the numerator of which shall be the Warrant Price in
effect  immediately  prior to such adjustment and the denominator of which shall
be the Warrant Price in effect immediately after such adjustment.

            (a) Except as otherwise  provided  herein,  in the event the Company
shall, at any time or from time to time after the date hereof, (i) sell or issue
any shares of Common Stock for a  consideration  per share less than the Warrant
Price in effect on the date of such sale or  issuance,  (ii) issue any shares of
Common  Stock as a stock  dividend  to the  holders  of Common  Stock,  or (iii)
subdivide  or combine the  outstanding  shares of Common Stock into a greater or
fewer  number of shares (any such sale,  issuance,  subdivision  or  combination
being  herein  called a "Change of  Shares"),  then,  and  thereafter  upon each
further Change of Shares,  the Warrant Price in effect immediately prior to such
Change of Shares  shall be  changed to a price  (rounded  to the  nearest  cent)
determined by multiplying the Warrant Price in effect  immediately prior thereto
by a fraction,  the numerator of which shall be (x) the sum of (A) the number of
shares of Common Stock outstanding  immediately prior to the sale or issuance of
such additional shares or such subdivision or combination plus (B) the number of
shares of Common Stock that the aggregate  consideration received (determined as
provided in Paragraph  6(g)(v)) for the issuance of such additional shares would
purchase at the  Warrant  Price in effect on the date of such  issuance  and the
denominator  of  which  shall  be (y) the  number  of  shares  of  Common  Stock
outstanding  immediately after the sale or issuance of such additional shares or
such  subdivision or  combination.  Such adjustment  shall be made  successively
whenever any such issuance is made.

            (b) In case of any reclassification, capital reorganization or other
change of outstanding shares of Common Stock, or in case of any consolidation or
merger of the Company


                                      - 5 -

<PAGE>

with or into another entity (other than a  consolidation  or merger in which the
Company   is  the   continuing   entity   and  which  does  not  result  in  any
reclassification,  capital  reorganization or other change of outstanding shares
of  Common  Stock  other  than the  number  thereof),  or in case of any sale or
conveyance to another entity of the property of the Company as, or substantially
as, an  entirety  (other  than a  sale/leaseback,  mortgage  or other  financing
transaction),  the Company  shall cause  effective  provision to be made so that
each  holder  of  a  Bridge  Warrant  then  outstanding  shall  have  the  right
thereafter,  by exercising  such Bridge  Warrant,  upon the terms and conditions
specified  in the  Bridge  Warrant  and in lieu of the  shares of  Common  Stock
immediately  theretofore  purchasable  upon exercise of the Bridge  Warrant,  to
purchase the kind and number of shares of stock or other  securities or property
(including cash) receivable upon such  reclassification,  capital reorganization
or other change,  consolidation,  merger,  sale or conveyance by a holder of the
number of shares of Common Stock that might have been purchased upon exercise of
such  Bridge  Warrant  immediately  prior  to  such  reclassification,   capital
reorganization or other change,  consolidation,  merger, sale or conveyance. Any
such provision shall include  provision for adjustments  that shall be as nearly
equivalent as may be practicable to the adjustments provided for in this Section
6. The Company  shall not effect any such  consolidation,  merger or sale unless
prior to, or  simultaneously  with, the  consummation  thereof the successor (if
other  than the  Company)  resulting  from such  consolidation  or merger or the
entity purchasing  assets or other  appropriate  entity shall assume, by written
instrument  executed and delivered to the Company,  the obligation to deliver to
the holder of each Bridge Warrant such shares of stock, securities or assets as,
in  accordance  with the foregoing  provisions,  such holders may be entitled to
purchase and the other  obligations  under this Bridge  Warrant.  The  foregoing
provisions  shall  similarly  apply  to  successive  reclassifications,  capital
reorganizations  and other changes of outstanding  shares of Common Stock and to
successive consolidations, mergers, sales or conveyances.

            (c) If, at any time or from time to time, the Company shall issue or
distribute   to  the  holders  of  shares  of  Common  Stock   evidence  of  its
indebtedness, any other securities of the Company or any cash, property or other
assets  (excluding an issuance or distribution  governed by one of the preceding
Subsections  of  this  Section  6 and  also  excluding  cash  dividends  or cash
distributions  paid out of net profits  legally  available  therefor in the full
amount  thereof  (any such  non-excluded  event being  herein  called a "Special
Dividend")),  then in each case the  Registered  Holders of the Bridge  Warrants
shall be  entitled  to a  proportionate  share of any such  Special  Dividend as
though  they were the  holders  of the  number of shares of Common  Stock of the
Company for which their Bridge  Warrants are  exercisable  as of the record date
fixed  for the  determination  of the  holders  of Common  Stock of the  Company
entitled to receive such Special Dividend.

            (d) The Company may elect,  upon any adjustment of the Warrant Price
hereunder,  to adjust the number of Bridge Warrants outstanding,  in lieu of the
adjustment in the number of shares of Common Stock purchasable upon the exercise
of each Bridge  Warrant as  hereinabove  provided,  so that each Bridge  Warrant
outstanding  after such  adjustment  shall  represent  the right to purchase one
share  of  Common  Stock.  Each  Bridge  Warrant  held of  record  prior to such
adjustment of the number of Bridge  Warrants  shall become that number of Bridge
Warrants (calculated to the


                                      - 6 -

<PAGE>

nearest  tenth)  determined  by  multiplying  the number one by a fraction,  the
numerator  of which shall be the Warrant  Price in effect  immediately  prior to
such  adjustment  and the  denominator  of which shall be the  Warrant  Price in
effect immediately after such adjustment.  Upon each adjustment of the number of
Bridge  Warrants  pursuant to this Section 6, the Company shall,  as promptly as
practicable,  cause  to be  distributed  to each  Registered  Holder  of  Bridge
Warrants on the date of such adjustment Bridge Warrants  evidencing,  subject to
Section 7, the number of additional  Bridge  Warrants to which such Holder shall
be entitled  as a result of such  adjustment  or, at the option of the  Company,
cause to be distributed to such Holder in  substitution  and replacement for the
Bridge  Warrants held by him prior to the date of adjustment (and upon surrender
thereof,  if required by the Company) new Bridge Warrants  evidencing the number
of Bridge Warrants to which such Holder shall be entitled afer such adjustment.

            (e)  Irrespective of any adjustments or changes in the Warrant Price
or the number of shares of Common Stock  purchasable upon exercise of the Bridge
Warrants,  the Bridge Warrants  theretofore and thereafter issued shall,  unless
the Company shall exercise its option to issue new Bridge  Warrants  pursuant to
Subsection 3(a), continue to express the same Warrant Price per share, number of
shares  purchasable  thereunder and  Redemption  Price therefor as when the same
were originally issued.

            (f) After each  adjustment  of the  Warrant  Price  pursuant to this
Section  6, the  Company  will  promptly  prepare  a  certificate  signed by the
Chairman or  President,  and by the  Treasurer or an Assistant  Treasurer or the
Secretary or an  Assistant  Secretary,  of the Company  setting  forth:  (i) the
Warrant  Price as so  adjusted,  (ii) the  number  of  shares  of  Common  Stock
purchasable upon exercise of each Bridge Warrant after such adjustment,  and, if
the Company shall have elected to adjust the number of Bridge Warrants  pursuant
to Subsection 6(d), the number of Bridge Warrants to which the registered holder
of each Bridge Warrant shall then be entitled,  and the adjustment in Redemption
Price resulting  therefrom,  and (iii) a brief statement of the facts accounting
for such  adjustment.  The Company will cause a brief summary thereof to be sent
by ordinary first class mail to each Registered Holder of Bridge Warrants at his
or her last address as it shall appear on the registry books. No failure to mail
such notice nor any defect  therein or in the mailing  thereof  shall affect the
validity  of such  adjustment.  The  affidavit  the  Secretary  or an  Assistant
Secretary of the Company that such notice has been mailed shall,  in the absence
of fraud, be prima facie evidence of the facts stated therein.

            (g) For  purposes  of  Subsections  6(a)  and  6(d),  the  following
provisions (i) to (v) shall also be applicable:

                  (i) the number of shares of Common Stock deemed outstanding at
any given time shall  include all shares of capital stock  convertible  into, or
exchangeable  for, Common Stock (on an as converted basis) as well as all shares
of Common Stock  issuable  upon the exercise of (x) any  convertible  debt,  (y)
warrants  outstanding on the date hereof and (z) options outstanding on the date
hereof.


                                      - 7 -

<PAGE>

                  (ii) No  adjustment  of the Warrant Price shall be made unless
such  adjustment  would require an increase or decrease of at least $.01 in such
price;  provided that any adjustments which by reason of this Paragraph (ii) are
not  required to be made shall be carried  forward and shall be made at the time
of and  together  with the  next  subsequent  adjustment  which,  together  with
adjustments  so carried  forward,  shall  require an  increase or decrease of at
least $.01 in the Warrant Price then in effect hereunder.

                  (iii) In case of (1) the sale by the Company  (including  as a
component of a unit) of any rights or warrants to subscribe for or purchase,  or
any options for the purchase of, Common Stock or any securities convertible into
or exchangeable  for Common Stock (such securities  convertible,  exercisable or
exchangeable into Common Stock being herein called "Convertible Securities"), or
(2) the  issuance  by the  Company,  without  the  receipt by the Company of any
consideration  therefor, of any rights or warrants to subscribe for or purchase,
or any options for the purchase  of,  Common  Stock or  Convertible  Securities,
whether or not such  rights,  warrants  or  options,  or the right to convert or
exchange such  Convertible  Securities,  are  immediately  exercisable,  and the
consideration  per share for which Common Stock is issuable upon the exercise of
such  rights,  warrants  or options or upon the  conversion  or exchange of such
Convertible  Securities  (determined  by  dividing  (x)  the  minimum  aggregate
consideration, as set forth in the instrument relating thereto without regard to
any  antidilution  or similar  provisions  contained  therein  for a  subsequent
adjustment  of such  amount,  payable to the Company  upon the  exercise of such
rights,  warrants or options, plus the consideration received by the Company for
the issuance or sale of such rights,  warrants or options,  plus, in the case of
such Convertible  Securities,  the minimum aggregate amount, as set forth in the
instrument  relating  thereto  without  regard to any  antidilution  or  similar
provisions  contained  therein for a subsequent  adjustment  of such amount,  of
additional  consideration,  if any,  other  than  such  Convertible  Securities,
payable  upon the  conversion  or  exchange  thereof,  by (y) the total  maximum
number,  as set forth in the instrument  relating  thereto without regard to any
antidilution or similar provisions contained therein for a subsequent adjustment
of such  amount,  of shares of Common Stock  issuable  upon the exercise of such
rights,  warrants  or  options  or  upon  the  conversion  or  exchange  of such
Convertible  Securities  issuable upon the exercise of such rights,  warrants or
options)  is less than the Warrant  Price of the Common  Stock as of the date of
the  issuance  or sale of such  rights,  warrants  or  options,  then such total
maximum  number of shares of Common  Stock  issuable  upon the  exercise of such
rights,  warrants  or  options  or  upon  the  conversion  or  exchange  of such
Convertible  Securities  (as of the date of the issuance or sale of such rights,
warrants  or  options)  shall be deemed to be  "Common  Stock" for  purposes  of
Subsections  6(a) and 6(d) and  shall be  deemed to have been sold for an amount
equal to such  consideration  per share and shall cause an adjustment to be made
in accordance with Subsections 6(a) and 6(d).

                  (iv) In case of the sale or other  issuance  by the Company of
any Convertible  Securities,  whether or not the right of conversion or exchange
thereunder is immediately exercisable,  and the price per share for which Common
Stock is issuable upon the conversion or exchange of such Convertible Securities
(determined  by dividing (x) the total amount of  consideration  received by the
Company for the sale of such Convertible Securities, plus the


                                      - 8 -

<PAGE>

minimum  aggregate  amount,  as set  forth in the  instrument  relating  thereto
without regard to any antidilution or similar provisions contained therein for a
subsequent adjustment of such amount, of additional consideration, if any, other
than such  Convertible  Securities,  payable  upon the  conversion  or  exchange
thereof,  by (y) the  total  maximum  number,  as set  forth  in the  instrument
relating  thereto  without  regard to any  antidilution  or  similar  provisions
contained  therein for a  subsequent  adjustment  of such  amount,  of shares of
Common  Stock  issuable  upon the  conversion  or exchange  of such  Convertible
Securities) is less than the Warrant Price of the Common Stock as of the date of
the sale of such  Convertible  Securities,  then such  total  maximum  number of
shares  of  Common  Stock  issuable  upon the  conversion  or  exchange  of such
Convertible  Securities  (as of  the  date  of  the  sale  of  such  Convertible
Securities)  shall be deemed to be "Common  Stock" for  purposes of  Subsections
6(a) and 6(d) and shall be deemed to have been sold for an amount  equal to such
consideration  per share and shall cause an  adjustment to be made in accordance
with Subsections 6(a) and 6(d).

                  (v) In case the Company shall modify the rights of conversion,
exchange or exercise of any of the securities referred to in Paragraphs (iii) or
(iv) of this Subsection 6(g) or any other securities of the Company convertible,
exchangeable  or  exercisable  for shares of Common Stock,  for any reason other
than an event that would  require  adjustment to prevent  dilution,  so that the
consideration  per share received by the Company after such modification is less
than the  Warrant  Price as of the date  prior to such  modification,  then such
securities,  to the extent not  theretofore  exercised,  converted or exchanged,
shall be deemed to have expired or terminated  immediately  prior to the date of
such  modification and the Company shall be deemed,  for purposes of calculating
any  adjustments  pursuant to this Section 6, to have issued such new securities
upon such new terms on the date of  modification.  Such adjustment  shall become
effective as of the date upon which such modification  shall take effect. On the
expiration  or  cancellation  of  any  such  right,  warrant  or  option  or the
termination  or  cancellation  of any such right to convert or exchange any such
Convertible  Securities,  the  Warrant  Price  then in  effect  hereunder  shall
forthwith be readjusted to such Warrant Price as would have obtained (a) had the
adjustments made upon the issuance or sale of such rights, warrants,  options or
Convertible  Securities  been made upon the  basis of the  issuance  of only the
number of shares of Common Stock theretofore  actually  delivered (and the total
consideration  received therefor) upon the exercise of such rights,  warrants or
options or upon the  conversion or exchange of such  Convertible  Securities and
(b) had  adjustments  been made on the basis of the  Warrant  Price as  adjusted
under  clause  (a) of this  sentence  for all  transactions  (which  would  have
affected  such adjusted  Warrant  Price) made after the issuance or sale of such
rights, warrants, options or Convertible Securities.

                  (vi) In case of the sale of any  shares of Common  Stock,  any
Convertible Securities,  any rights or warrants to subscribe for or purchase, or
any options for the purchase of,  Common Stock or  Convertible  Securities,  the
consideration  received by the Company  therefor shall be deemed to be the gross
sales price therefor without deducting therefrom any expense paid or incurred by
the Company or any underwriting  discounts or commissions or concessions paid or
allowed by the Company in connection therewith. In the event that any securities
shall be issued in connection with any other securities of the Company, together
comprising one integral transaction


                                      - 9 -

<PAGE>

in which no specific consideration is allocated among the securities,  then each
of such securities shall be deemed to have been issued for such consideration as
the Board of  Directors  of the  Company  determines  in good  faith;  provided,
however  that if  holders  of more  than of 10% of the then  outstanding  Bridge
Warrants  disagree  with  such  determination,   the  Company  shall  retain  an
independent investment banking firm for the purpose of obtaining an appraisal.

            (h) Notwithstanding any other provision hereof, no adjustment to the
Warrant Price of the Bridge  Warrants or to the number of shares of Common Stock
purchasable upon the exercise of each Bridge Warrant will be made:

                  (i) upon the exercise of any of the options outstanding on the
date hereof under the Company's existing stock option plans; or

                  (ii)  upon the  issuance  or  exercise  of  options  which may
hereafter be granted with the approval of the Board of Directors,  or exercised,
under  any  employee  benefit  plan  of  the  Company  to  officers,  directors,
consultants  or  employees,  but  only  with  respect  to  such  options  as are
exercisable  at prices no lower than the  Closing  Bid Price  (or,  if the price
referenced in the definition of Closing Bid Price cannot be determined, the Fair
Market  Value (as  defined  below)) of the Common  Stock as of the date of grant
thereof; or

                  (iii) upon  issuance or exercise of the warrants  issued to D2
Co., LLC in connection with the Management Agreement between D2 Co., LLC and the
Company,  dated  December  23,  1999 or upon the  conversion  or exercise of the
Bridge Notes or the Bridge Warrants  included in the Units issued on or prior to
the Final Closing Date; or

                  (iv) upon the issuance or sale of Common Stock or  Convertible
Securities  pursuant  to the  exercise  of any  rights,  options or  warrants to
receive,  subscribe for or purchase,  or any options for the purchase of, Common
Stock or Convertible Securities, whether or not such rights, warrants or options
were outstanding on the date of the original sale of the Bridge Warrants or were
thereafter  issued or sold,  provided that an adjustment  was either made or not
required to be made in accordance with  Subsections  6(a) and 6(d) in connection
with the issuance or sale of such  securities or any  modification  of the terms
thereof; or

                  (v) upon the issuance or sale of Common Stock upon  conversion
or  exchange  of any  Convertible  Securities,  provided  that  any  adjustments
required to be made upon the issuance or sale of such Convertible  Securities or
any  modification  of the terms  thereof  were so made,  and whether or not such
Convertible  Securities were outstanding on the date of the original sale of the
Bridge Warrants or were thereafter issued or sold.

Paragraph 6(g)(v) shall  nevertheless apply to any modification of the rights of
conversion,  exchange  or  exercise  of  any of the  securities  referred  to in
Paragraphs  (i), (ii) and (iii) of this  Subsection  6(h). For purposes  hereof,
"Fair  Market  Value"  shall mean the average  Closing Bid Price for twenty (20)
consecutive  trading  days,  ending with the trading day prior to the date as of
which the Fair Market


                                     - 10 -

<PAGE>

Value is being  determined,  (with  appropriate  adjustments for subdivisions or
combinations of shares effected during such period)  provided that if the prices
referred to in the definition of Closing Bid Price cannot be determined for such
period,  "Fair Market Value" shall be the fair market value as determined by the
Board of Directors in good faith.

            (i) As used in this  Section 6, the term  "Common  Stock" shall mean
and include the  Company's  Common Stock  authorized on the date of the original
issue of the Units and shall also include any capital  stock of any class of the
Company  thereafter  authorized  which  shall not be  limited  to a fixed sum or
percentage  in respect of the rights of the holders  thereof to  participate  in
dividends  and in the  distribution  of assets upon the  voluntary  liquidation,
dissolution  or winding up of the Company;  provided,  however,  that the shares
issuable upon exercise of the Bridge  Warrants shall include only shares of such
class designated in the Company's  Certificate of Incorporation,  as amended, as
Common Stock on the date of the original  issue of the Units or (i), in the case
of any reclassification,  change,  consolidation,  merger, sale or conveyance of
the character referred to in Subsection 6(c), the stock,  securities or property
provided for in such  section or (ii),  in the case of any  reclassification  or
change in the  outstanding  shares of Common Stock issuable upon exercise of the
Bridge  Warrants as a result of a subdivision  or combination or consisting of a
change in par value,  or from par value to no par value, or from no par value to
par value, such shares of Common Stock as so reclassified or changed.

            (j) Any  determination  as to whether an  adjustment  in the Warrant
Price in effect hereunder is required pursuant to Section 6, or as to the amount
of any such  adjustment,  if required,  shall be binding upon the holders of the
Bridge  Warrants and the Company if made in good faith by the Board of Directors
of the Company.

            (k) If and whenever the Company shall grant to the holders of Common
Stock,  as such,  rights or warrants to  subscribe  for or to  purchase,  or any
options for the purchase  of,  Common Stock or  securities  convertible  into or
exchangeable  for or  carrying  a right,  warrant or option to  purchase  Common
Stock,  the Company may at its option elect  concurrently  therewith to grant to
each Registered  Holder as of the record date for such transaction of the Bridge
Warrants  then  outstanding,  the  rights,  warrants  or  options  to which each
Registered  Holder  would  have been  entitled  if, on the  record  date used to
determine  the  shareholders  entitled to the rights,  warrants or options being
granted by the Company,  the Registered  Holder were the holder of record of the
number of whole shares of Common Stock then issuable upon exercise of his or her
Bridge Warrant.  If the Company shall so elect under this Subsection  6(k), then
such grant by the Company to the holders of the Bridge Warrants shall be in lieu
of any adjustment  which  otherwise might be called for pursuant to this Section
6.

      7. Fractional  Warrants and Fractional  Shares. If the number of shares of
Common Stock  purchasable  upon the exercise of each Bridge  Warrant is adjusted
pursuant to Section 6, the Company  nevertheless  shall not be required to issue
fractions of shares,  upon exercise of the Bridge  Warrant or otherwise,  nor to
distribute  certificates that evidence  fractional  shares.  With respect to any
fraction of a share called for upon any exercise  hereof,  the Company shall pay
to the Registered


                                     - 11 -

<PAGE>

Holder an amount in cash equal to such  fraction  multiplied  by the Fair Market
Value of one share of Common Stock as of the date of exercise.

         8.  Warrant  Holders  Not  Deemed  Shareholders.  No  holder  of Bridge
Warrants  shall,  as such,  be  entitled to vote or to receive  dividends  or be
deemed the holder of Common Stock that may at any time be issuable upon exercise
of such Bridge Warrants for any purpose whatsoever, nor shall anything contained
herein be construed to confer upon the holder of Bridge  Warrants,  as such, any
of the  rights  of a  shareholder  of the  Company  or any right to vote for the
election  of  directors  or upon any matter  submitted  to  shareholders  at any
meeting thereof, or to give or withhold consent to any corporate action (whether
upon any  recapitalization,  issue or  reclassification  of stock, change of par
value or change of stock to no par value, consolidation, merger or conveyance or
otherwise),  or to  receive  notice of  meetings,  or to  receive  dividends  or
subscription rights, until such Holder shall have exercised such Bridge Warrants
and been issued shares of Common Stock in accordance with the provisions hereof.

         9.  Rights  of  Action.  All  rights  of action  with  respect  to this
Agreement  are  vested  in the  respective  Registered  Holders  of  the  Bridge
Warrants, and any Registered Holder of a Bridge Warrant,  without consent of the
holder of any other  Bridge  Warrant,  may,  in his own  behalf  and for his own
benefit,  enforce  against the Company his right to exercise his Bridge  Warrant
for the purchase of shares of Common Stock in the manner provided herein.

         10. Agreement of Warrant  Holders.  Every holder of any Bridge Warrant,
by his acceptance thereof,  consents and agrees with the Company and every other
holder of any Bridge Warrant that:

                  (i) The Bridge Warrants are transferable  only on the registry
books of the Company by the Registered Holder thereof in person or by his or her
attorney  duly  authorized  in  writing  and only if such  Bridge  Warrants  are
surrendered  at the office of the Company,  duly  endorsed or  accompanied  by a
proper  instrument  of  transfer  satisfactory  to  the  Company,  in  its  sole
discretion, together with payment of any applicable transfer taxes; and

                  (ii) The  Company  may deem and treat the person in whose name
the Bridge  Warrant is registered  as the holder and as the  absolute,  true and
lawful owner thereof for all purposes,  and the Company shall not be affected by
any notice or knowledge to the contrary,  except as otherwise expressly provided
in Section 3.

      11. Investment Representation and Legend. The holder, by acceptance of the
Bridge Warrants, represents and warrants to the Company that it is acquiring the
Bridge  Warrants and the shares of Common Stock (or other  securities)  issuable
upon  the  exercise  hereof  for  investment  purposes  only and not with a view
towards the resale or other distribution thereof and agrees that the Company may
affix upon this Bridge Warrant the following legend:


                                     - 12 -

<PAGE>

            "This   Warrant  has  been   issued  in   reliance   upon  the
      representation   of  the  holder  that  it  has  been  acquired  for
      investment  purposes and not with a view towards the resale or other
      distribution  thereof.  Neither this Warrant nor the shares issuable
      upon the  exercise of this Warrant  have been  registered  under the
      Securities Act of 1933, as amended."

The holder,  by  acceptance  of this  Bridge  Warrant,  further  agrees that the
Company  may affix the  following  legend to  certificates  for shares of Common
Stock issued upon exercise of this Bridge Warrant:

      "The securities  represented by this certificate have been issued in
      reliance upon the  representation  of the holder that they have been
      acquired  for  investment  and not with a view  toward the resale or
      other distribution  thereof,  and have not been registered under the
      Securities Act of 1933, as amended. Neither the securities evidenced
      hereby, nor any interest therein, may be offered, sold, transferred,
      encumbered  or otherwise  disposed of unless  either (i) there is an
      effective  registration statement under said Act relating thereto or
      (ii) the  Company has  received  an opinion of  counsel,  reasonably
      satisfactory in form and substance to the Company, stating that such
      registration is not required."

      12.  Cancellation  of Bridge  Warrants.  If the Company shall  purchase or
acquire any Bridge Warrant or Bridge Warrants, by redemption or otherwise,  each
such Bridge  Warrant  shall  thereupon be and  canceled by it and  retired.  The
Company  shall  also  cancel the Bridge  Warrant  or Bridge  Warrants  following
exercise  of any or all  thereof  or  delivered  to it for  transfer,  split up,
combination or exchange.

      13. Modification of Bridge Warrant. The terms of the Bridge Warrants shall
not be modified,  supplemented or altered in any respect except with the consent
in writing of the  Registered  Holders  representing  at least a majority of the
Bridge  Warrants then  outstanding;  provided,  that, no change in the number or
nature of the securities purchasable upon the exercise of any Bridge Warrant, or
the Warrant Price therefor,  or the acceleration of the Warrant Expiration Date,
shall be made  without  the consent in writing of the  Registered  Holder of the
Bridge Warrant, and in compliance with applicable law.

      14.  Notices.  All notices,  requests,  consents and other  communications
hereunder  shall be in  writing  and  shall be  deemed  to have  been  made when
delivered  or mailed  by means of first  class  registered  or  certified  mail,
postage prepaid as follows:  if to the Registered Holder of a Bridge Warrant, at
the  address of such holder as shown on the  registry  books  maintained  by the
Company; if to the Company, at 555 17th St., Suite 3310, Denver, CO 80202, or at
such  other  address  as may have been  furnished  to the  Registered  Holder in
writing by the Company.

      15.  Governing Law. This Agreement  shall be governed by, and construed in
accordance  with,  the  laws of the  State of New  York,  without  reference  to
principles of conflict of laws.


                                     - 13 -

<PAGE>

      16. Binding Effect.  This Agreement shall be binding upon and inure to the
benefit of the Company,  the Registered  Holder and their respective  successors
and assigns,  and the holders from time to time of the Bridge Warrants.  Nothing
in this Bridge  Warrant is intended  nor shall be  construed  to confer upon any
other person any right,  remedy or claim, in equity or at law, or to impose upon
any other person any duty, liability or obligation.

      17.  Registration  Rights. The rights of the holder hereof with respect to
the registration under the Securities Act of 1933, as amended,  of the shares of
Common Stock  issuable upon the exercise of this Bridge Warrant are set forth in
the Purchase Agreement.

      IN WITNESS WHEREOF,  the Company has caused this Bridge Warrant to be duly
executed as of the date first above written.

                                           BION ENVIRONMENTAL TECHNOLOGIES, INC.

                                           By:
                                              ----------------------------------
                                                  Authorized Officer


                                     - 14 -

<PAGE>

                                SUBSCRIPTION FORM

                     To Be Executed by the Registered Holder
                       in Order to Exercise Bridge Warrant

      The undersigned  Registered Holder hereby  irrevocably  elects to exercise
__________ Bridge Warrants represented by this certificate,  and to purchase the
securities issuable upon the exercise of such Bridge Warrants, and requests that
certificates for such securities shall be issued in the name of

            PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER

            --------------------------------------------------------

            --------------------------------------------------------

            --------------------------------------------------------

            --------------------------------------------------------
                     [please print or type name and address]

and be delivered to

            --------------------------------------------------------

            --------------------------------------------------------

            --------------------------------------------------------

            --------------------------------------------------------
                     [please print or type name and address]

and if such  number of Bridge  Warrants  shall  not be all the  Bridge  Warrants
evidenced by this Warrant Certificate, that a new Bridge Warrant for the balance
of such Bridge  Warrants be  registered  in the name of, and  delivered  to, the
Registered Holder at the address stated below.

      The undersigned  represents that the exercise of the within Bridge Warrant
was solicited by a member of the National  Association  of  Securities  Dealers,
Inc. If not solicited by an NASD member, please write "unsolicited" in the space
below.

                                               ---------------------------------
                                               (Name of NASD Member)

Dated:                          X
      --------------------------               ---------------------------------

                                               ---------------------------------

                                               ---------------------------------
                                                         Address

                                               ---------------------------------
                                                Taxpayer Identification Number

                                               ---------------------------------
                                                  Signature Guaranteed


                                     - 15 -

<PAGE>

                                   ASSIGNMENT

                     To Be Executed by the Registered Holder
                        In Order to Assign Bridge Warrant

FOR VALUE RECEIVED,________________________________________________hereby sells,
assigns and transfers unto

            PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER

            --------------------------------------------------------

            --------------------------------------------------------

            --------------------------------------------------------

            --------------------------------------------------------
                     [please print or type name and address]

      ___________________________ of the Bridge Warrants represented hereby, and
hereby irrevocably constitutes and appoints

- --------------------------------------------------------------------------------
Attorney to transfer this Bridge Warrant on the books of the Company,  with full
power of substitution in the premises.

Dated:                             X
      ----------------------------       ---------------------------------------
                                                Signature Guaranteed

THE SIGNATURE TO THE ASSIGNMENT OR THE SUBSCRIPTION  FORM MUST CORRESPOND TO THE
NAME AS WRITTEN UPON THE FACE OF THIS WARRANT  CERTIFICATE IN EVERY  PARTICULAR,
WITHOUT  ALTERATION  OR  ENLARGEMENT  OR ANY  CHANGE  WHATSOEVER,  AND  MUST  BE
GUARANTEED BY A MEMBER OF THE MEDALLION STAND PROGRAM.


                                     - 16 -



© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission