SAFETY KLEEN CORP/
SC 13D, 2001-01-05
HAZARDOUS WASTE MANAGEMENT
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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934
                                (Amendment No. )*

                          SystemOne Technologies Inc.
 ------------------------------------------------------------------------------
                                (Name of Issuer)

                          Common Stock, $.001 par value
 ------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                   81787Q 10 4
 ------------------------------------------------------------------------------
                                 (CUSIP Number)

                                 Henry H. Taylor
                  Vice President, General Counsel and Secretary
                               Safety-Kleen Corp.
                         1301 Gervais Street, Suite 300
                         Columbia, South Carolina 29201
                                 (803) 933-4219
 ------------------------------------------------------------------------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)
                                December 26, 2000
 ------------------------------------------------------------------------------
             (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
statement because of ss.ss.240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the
following box. [ ]

Note.  Schedules  filed in paper format shall include a signed original and five
copies  of the  schedule,  including  all  exhibits.  Seess.240.13d-7  for other
parties to whom copies are to be sent.

* 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).

                                    Page 1 of 8
<PAGE>

CUSIP Number 81787Q 10 4
--------------------------------------------------------------------------------
1        Names of Reporting Persons. I.R.S. Identification Nos. of above persons
         (entities only).

         Safety-Kleen Systems, Inc. 39-6090019
--------------------------------------------------------------------------------
2        Check the Appropriate Box if a Member of a Group (See Instructions)
         (a) [ X ]
         (b) [   ]
--------------------------------------------------------------------------------
3        SEC Use Only

--------------------------------------------------------------------------------
4        Source of Funds (See Instructions)  OO

--------------------------------------------------------------------------------
5        Check if Disclosure of Legal Proceedings Is Required Pursuant to Items
         2(d) or 2(e)  [   ]
--------------------------------------------------------------------------------
6        Citizenship or Place of Organization

         Wisconsin

--------------------------------------------------------------------------------
NUMBER OF                  7        Sole Voting Power
SHARES            -------------------------------------------------------------
BENEFICIALLY               8        Shared Voting Power                1,134,615
OWNED BY EACH     --------------------------------------------------------------
REPORTING                  9        Sole Dispositive Power
PERSON            --------------------------------------------------------------
WITH                       10       Shared Dispositive Power           1,134,615
--------------------------------------------------------------------------------
11       Aggregate Amount Beneficially Owned by Each Reporting Person

         1,134,615 shares

--------------------------------------------------------------------------------
12       Check if the Aggregate Amount in Row (11) Excludes Certain Shares
         (See Instructions)  [   ]
--------------------------------------------------------------------------------
13       Percent of Class Represented by Amount in Row (11)  19.3%
--------------------------------------------------------------------------------
14       Type of Reporting Person (See Instructions)

         CO

                                  Page 2 of 8
<PAGE>

CUSIP Number 81787Q 10 4
--------------------------------------------------------------------------------
1        Names of Reporting Persons. I.R.S. Identification Nos. of above persons
         (entities only).

         Safety-Kleen Services, Inc. 75-2178928
--------------------------------------------------------------------------------
2        Check the Appropriate Box if a Member of a Group (See Instructions)
         (a) [ X ]
         (b) [   ]
--------------------------------------------------------------------------------
3        SEC Use Only

--------------------------------------------------------------------------------
4        Source of Funds (See Instructions)  OO

--------------------------------------------------------------------------------
5        Check if Disclosure of Legal Proceedings Is Required Pursuant to Items
         2(d) or 2(e)  [   ]
--------------------------------------------------------------------------------
6        Citizenship or Place of Organization

         Delaware

--------------------------------------------------------------------------------
NUMBER OF                  7        Sole Voting Power
SHARES             -------------------------------------------------------------
BENEFICIALLY               8        Shared Voting Power                1,134,615
OWNED BY EACH      -------------------------------------------------------------
REPORTING                  9        Sole Dispositive Power
PERSON             -------------------------------------------------------------
WITH                       10       Shared Dispositive Power           1,134,615
--------------------------------------------------------------------------------
11       Aggregate Amount Beneficially Owned by Each Reporting Person

                  1,134,615 shares

--------------------------------------------------------------------------------
12       Check if the Aggregate Amount in Row (11) Excludes Certain Shares
         (See Instructions)  [   ]
--------------------------------------------------------------------------------
13       Percent of Class Represented by Amount in Row (11)  19.3%
--------------------------------------------------------------------------------
14       Type of Reporting Person (See Instructions)

         CO, HC

                                  Page 3 of 8
<PAGE>

CUSIP Number 81787Q 10 4
--------------------------------------------------------------------------------
1        Names of Reporting Persons. I.R.S. Identification Nos. of above persons
         (entities only).

         Safety-Kleen Corp. 51-0228924
--------------------------------------------------------------------------------
2        Check the Appropriate Box if a Member of a Group (See Instructions)
         (a) [ X ]
         (b) [   ]
--------------------------------------------------------------------------------
3        SEC Use Only

--------------------------------------------------------------------------------
4        Source of Funds (See Instructions)  OO

--------------------------------------------------------------------------------
5        Check if Disclosure of Legal Proceedings Is Required Pursuant to Items
         2(d) or 2(e)  [   ]
--------------------------------------------------------------------------------
6        Citizenship or Place of Organization

         Delaware

--------------------------------------------------------------------------------
NUMBER OF                  7        Sole Voting Power
SHARES            --------------------------------------------------------------
BENEFICIALLY               8        Shared Voting Power                1,134,615
OWNED BY EACH     --------------------------------------------------------------
REPORTING                  9        Sole Dispositive Power
PERSON            --------------------------------------------------------------
WITH                       10       Shared Dispositive Power           1,134,615
--------------------------------------------------------------------------------
11       Aggregate Amount Beneficially Owned by Each Reporting Person

         1,134,615 shares

--------------------------------------------------------------------------------
12       Check if the Aggregate Amount in Row (11) Excludes Certain Shares
         (See Instructions)  [   ]
--------------------------------------------------------------------------------
13       Percent of Class Represented by Amount in Row (11)  19.3%
--------------------------------------------------------------------------------
14       Type of Reporting Person (See Instructions)
         CO, HC

                                  Page 4 of 8
<PAGE>

Item 1.  Security and Issuer.
         -------------------

         The securities to which this statement relates are shares of the common
stock, $.001 par  value (the "Common Stock"), of SystemOne Technologies  Inc., a
Florida  corporation  (the  "Issuer").  The principal  executive  offices of the
Issuer are located at 8305 N.W. 27th Street, Suite 107, Miami, Florida 33122.

Item 2.  Identity and Background.
         -----------------------

               This  statement is being filed jointly by  Safety-Kleen  Systems,
Inc.  ("Systems"),  Safety-Kleen  Services,  Inc.  ("Services") and Safety-Kleen
Corp. ("SK").

               Systems,  which is a direct wholly owned  subsidiary of Services,
is a Wisconsin  corporation whose principal business offices are located at 1301
Gervais Street,  Suite 300,  Columbia,  South Carolina 29201.  Systems  provides
specialized  waste  management  services to customers in the automotive  repair,
manufacturing,  photo-processing,  medical and dry cleaning markets. The largest
service  component of Systems is parts  cleaner  services.  The names,  business
addresses,  principal occupations and citizenships of the executive officers and
directors of Systems are set forth in Exhibit A attached hereto and incorporated
herein by reference.

               Services,  which is a direct wholly owned  subsidiary of SK, is a
Delaware  corporation  whose  principal  business  offices  are  located at 1301
Gervais Street, Suite 300, Columbia, South Carolina 29201. Services is a holding
company whose  subsidiaries  include Systems and other  companies  through which
Services provides various additional  industrial waste management services.  The
names,  business  addresses,  principal  occupations  and  citizenships  of  the
executive officers and directors of Services are set forth in Exhibit B attached
hereto and incorporated herein by reference.

               SK is a Delaware corporation whose principal business and offices
are located at 1301 Gervais Street,  Suite 300, Columbia,  South Carolina 29201.
SK is a publicly traded holding company that through its  subsidiaries  provides
industrial waste services designed to collect,  process,  recycle and dispose of
hazardous and industrial waste streams. The names, business addresses, principal
occupations and  citizenships of the executive  officers and directors of SK are
set forth in Exhibit C attached hereto and incorporated herein by reference.

               During the last five years, none of the reporting persons and, to
the knowledge of the reporting  persons,  none of the persons listed in Exhibits
A, B and C hereto has (i) been  convicted  in a criminal  proceeding  (excluding
traffic  violations  or  similar  misdemeanors)  or (ii) been 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 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.

Item 3.  Source and Amount of Funds or Other Consideration.
         -------------------------------------------------

               On  November  13,  2000,  Systems and the Issuer  entered  into a
Marketing and Distribution Agreement, which was later amended and restated as of
December 14, 2000 (as amended and restated, the "Marketing  Agreement").  A copy
of the Marketing Agreement is filed as Exhibit E hereto. The Marketing Agreement
appoints  Systems as the  exclusive  distributor  of the  Issuer's  parts

                                  Page 5 of 8
<PAGE>

washer  equipment  in the United  States,  Puerto  Rico,  Canada and Mexico.  In
addition,  the  Marketing  Agreement  provides  for  Systems  to assume  certain
service, maintenance and repair responsibility for parts washers previously sold
by the Issuer. The Marketing Agreement became effective on December 26, 2000.

               The  Issuer  delivered  the  Warrant  (as  defined  in Item 5) to
Systems on December  26, 2000 as partial  consideration  for  Systems'  entering
into, and as a condition precedent to Systems'  obligations under, the Marketing
Agreement.  The  source  and the  amount  of  funds  to be used  by  Systems  in
exercising the Warrant are not yet known.

Item 4.  Purpose of Transaction.
         ----------------------

               The  purpose  of the  acquisition  of the  Warrant  is to provide
Systems with the right to acquire an equity  interest in the Issuer and to share
in any increase in value in the Issuer's Common Stock.

               Other than as  indicated  elsewhere  in this  statement,  neither
Systems,  Services nor SK has any present plans or proposals  which relate to or
would  result  in  any of the  following:  (i)  the  acquisition  of  additional
securities of the Issuer or the disposition of securities of the Issuer; (ii) an
extraordinary   corporate   transaction,   such  as  a  merger,   reorganization
liquidation,  involving the Issuer or any of its  subsidiaries;  (iii) a sale or
transfer  of  a  material  amount  of  assets  of  the  Issuer  or  any  of  its
subsidiaries; (iv) any change in the present Board of Directors or management of
the  Issuer  including  any plans or  proposals  to change the number or term of
directors or to fill any existing  vacancies on the Issuer's Board of Directors;
(v) any material change in the present  capitalization or dividend policy of the
Issuer;  (vi) any other material  changes in the Issuer's  business or corporate
structure;  (vii)  changes in the  Issuer's  charter or bylaws or other  actions
which may impede the acquisition of control of the Issuer by any person;  (viii)
causing a class of  securities  of the  Issuer to be  delisted  from a  national
securities exchange or to cease to be authorized to be quoted in an inter-dealer
quotation system of a registered national securities  association;  (ix) a class
of  equity  securities  of the  Issuer  becoming  eligible  for  termination  of
registration  pursuant to Section  12(g)(4) of the  Securities  Exchange  Act of
1934; or (x) any action similar to those enumerated above.

Item 5.  Interest in Securities of the Issuer.
         ------------------------------------

               On December 26, 2000,  the Issuer  delivered to Systems a warrant
(the  "Warrant"),  exercisable  until  December  26,  2005,  to  purchase  up to
1,134,615 shares, or approximately 19.3%, of the Common Stock of the Issuer at a
price  of $3.50  per  share  (subject  to  adjustment  in the  event of  certain
recapitalizations, reorganizations and the like). A copy of the Warrant is filed
herewith as Exhibit F.

               As the  parent  companies  of  Systems,  Services  and SK are the
indirect  beneficial  owners of the same 1,134,615 shares of Common Stock of the
Issuer. Accordingly, Systems, Services and SK have shared voting and dispositive
power over the  1,134,615  shares of Common Stock  issuable upon exercise of the
Warrant.

               Other than the Warrant, none of the reporting persons and none of
the individuals described in Item 2 beneficially owns any shares of the Issuer's
Common Stock.

                                  Page 6 of 8
<PAGE>

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

               The Warrant contains  provisions giving Systems a 10-day right of
first  refusal  with  respect to  certain  dilutive  issuances  of shares of the
Issuer's Common Stock or securities convertible or exercisable for shares of the
Issuer's  Common  Stock.  The right of first  refusal  does not apply to certain
issuances  of  Common  Stock,  including  issuances  (a) that  would  result  in
adjustments  to the exercise  price of the Warrant,  (b) pursuant to  employment
agreements,  stock option or bonus plans  authorized  by the  Issuer's  board of
directors as of the date of the Warrant, (c) in connection with certain business
combinations  approved by the Issuer's  board of directors,  (d) upon  exercise,
exchange or conversion of securities existing on the date of the Warrant and (e)
pursuant to anti-dilution provisions of other securities of the Issuer.

               The Warrant also gives Systems certain  "piggyback"  registration
rights with respect to (a) securities  issued to Systems pursuant to the Warrant
and (b) securities  issued or issuable upon adjustments for stock splits,  stock
dividends and the like with respect to securities  issued to Systems pursuant to
the Warrant.

               Except as described above and elsewhere in this statement,  there
are no  contracts,  arrangements,  understandings  or  relationships  (legal  or
otherwise)  among the persons  named in Item 2 and between  such persons and any
person with respect to any  securities of the Issuer,  including but not limited
to transfer or voting of any of the securities,  finder's fees,  joint ventures,
loan or option arrangements,  puts or calls, guarantees of profits,  division of
profits or loss, or the giving or withholding of proxies.

Item 7.  Material to be Filed as Exhibits.
         --------------------------------

               The following exhibits are filed herewith:

               A.   Directors and Executive Officers of Systems
               B.   Directors and Executive Officers of Services
               C.   Directors and Executive Officers of SK
               D.   Joint Filing Agreement
               E.   Marketing Agreement
               F.   Warrant

                                  Page 7 of 8
<PAGE>

                               SIGNATURE

         After reasonable  inquiry and to the best of my knowledge and belief, I
certify that the information  set forth in this statement is true,  complete and
correct.

January 4, 2001                                   SAFETY-KLEEN SYSTEMS, INC.
--------------------------
(Date)

                                               By:  /s/ Henry H. Taylor
                                                   -----------------------------
                                                   Henry H. Taylor, President


January 4, 2001                                   SAFETY-KLEEN SERVICES, INC.
--------------------------
(Date)

                                               By:  /s/ Henry H. Taylor
                                                   -----------------------------
                                                   Henry H. Taylor, President


January 4, 2001                                   SAFETY-KLEEN CORP.
--------------------------
(Date)

                                               By:  /s/ Henry H. Taylor
                                                   -----------------------------
                                                   Henry H. Taylor, Vice
                                                   President, General Counsel
                                                   and Secretary

                                  Page 8 of 8
<PAGE>

                                    EXHIBIT A

                   Directors and Executive Officers of Systems
                   -------------------------------------------

The name,  title,  business  address  and  principal  occupation  of each of the
directors and executive  officers of Safety-Kleen  Systems,  Inc., and the name,
principal  business and address of any  organization in which such employment is
conducted, are set forth below. Each director and executive officer listed below
is a citizen of the United States.

<TABLE>
<CAPTION>
<S>                                                              <C>

---------------------------------------------------------------- -----------------------------------------------------------
Name, Title and Business Address                                 Principal Occupation

---------------------------------------------------------------- -----------------------------------------------------------
Henry H. Taylor; President and Director                          Vice President, General Counsel, and Secretary
1301 Gervais Street, Suite 300                                   Safety-Kleen Corp.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Larry W. Singleton; Chief Financial Officer and Treasurer        Senior Vice President, Finance and Chief Financial Officer
1301 Gervais Street, Suite 300                                   Safety-Kleen Corp.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
David E. Thomas, Jr.; Senior Vice President                      Chief Executive Officer and Chairman of the Board
1301 Gervais Street, Suite 300                                   Safety-Kleen Corp.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Robert Arquilla; Vice President                                  Senior Vice President Administration
1301 Gervais Street, Suite 300                                   Safety-Kleen Services, Inc.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Roy Dean  Bullinger;  Senior Vice President                       President  Branch Sales and Service
1301 Gervais Street, Suite 300                                    Division
Columbia, South Carolina 29201                                    Safety-Kleen Corp.
---------------------------------------------------------------- -----------------------------------------------------------
Paul Anthony Jefferson; Vice President                           Senior Vice President Sales Support
1301 Gervais Street, Suite 300                                   Safety-Kleen Systems, Inc.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Timothy  Patrick  Keegan;  Vice  President                       Senior Vice  President  Oil,  PPM, &
1301 Gervais  Street,  Suite 300                                 Remedial and Consulting
Columbia, South Carolina 29201                                   Safety-Kleen  Systems, Inc.


</TABLE>


<PAGE>


                                    EXHIBIT B

                  Directors and Executive Officers of Services
                  --------------------------------------------

The name,  title,  business  address  and  principal  occupation  of each of the
directors and executive officers of Safety-Kleen  Services,  Inc., and the name,
principal  business and address of any  organization in which such employment is
conducted, are set forth below. Each director and executive officer listed below
is a citizen of the United States.

<TABLE>
<CAPTION>
<S>                                                              <C>

---------------------------------------------------------------- -----------------------------------------------------------
Name, Title and Business Address                                 Principal Occupation

---------------------------------------------------------------- -----------------------------------------------------------
Henry H. Taylor; President*                                      Vice President, General Counsel, and Secretary
1301 Gervais Street, Suite 300                                   Safety-Kleen Corp.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Larry W. Singleton; Chief Financial Officer and Treasurer        Senior Vice President, Finance and Chief Financial Officer
1301 Gervais Street, Suite 300                                   Safety-Kleen Corp.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Robert Arquilla; Vice President                                  Senior Vice President Administration
1301 Gervais Street, Suite 300                                   Safety-Kleen Services, Inc.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Roy Dean  Bullinger;  Senior Vice President                      President  Branch Sales and Service
1301 Gervais Street, Suite 300                                   Division
Columbia, South Carolina 29201                                   Safety-Kleen Corp.
---------------------------------------------------------------- -----------------------------------------------------------
Jerry Elmer Correll; Vice President                              Senior Vice President Sales
1301 Gervais Street, Suite 300                                   LEMC, Inc. (subsidiary of Safety-Kleen Services, Inc.)
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Michael Allen Faucett; Senior Vice-President                     Senior Vice President Treatment Disposal
1301 Gervais Street, Suite 300                                   LEMC, Inc.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
David M. Sprinkle; Senior Vice President                         President Chemical Services Division
1301 Gervais Street, Suite 300                                   Safety-Kleen Corp.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Barry Kirk Fogle; Senior Vice-President                          Senior Vice President Services Centers
1301 Gervais Street, Suite 300                                   LEMC, Inc.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Danny Lee Stubbs; Vice President                                 Vice President Corporate Accounts
1301 Gervais Street, Suite 300                                   LEMC, Inc.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Timothy  Patrick  Keegan;  Vice  President                       Senior Vice  President  Oil,  PPM, &
1301 Gervais  Street,  Suite 300                                 Remedial and Consulting
Columbia, South Carolina 29201                                   Safety-Kleen  Systems, Inc.


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

</TABLE>


<PAGE>


                                    EXHIBIT C

                     Directors and Executive Officers of SK
                     --------------------------------------

The name,  title,  business  address  and  principal  occupation  of each of the
directors and executive officers of Safety-Kleen Corp., and the name,  principal
business and address of any  organization in which such employment is conducted,
are set forth below.  Each  director  and  executive  officer  listed below is a
citizen of the United States except Mr. Luba, who is a citizen of Canada.

<TABLE>
<CAPTION>
<S>                                                              <C>

---------------------------------------------------------------- -----------------------------------------------------------
Name, Title and Business Address                                 Principal Occupation

---------------------------------------------------------------- -----------------------------------------------------------
David E. Thomas, Jr.; Director, Chief Executive Officer and      Chief Executive Officer and Chairman of the Board
Chairman of the Board                                            Safety-Kleen Corp.
1301 Gervais Street, Suite 300
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Grover C. Wrenn; Director, President and Chief Operating         President and Chief Operating Officer
Officer                                                          Safety-Kleen Corp.
1301 Gervais Street, Suite 300
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Larry W. Singleton; Senior Vice President, Finance and Chief     Senior Vice President, Finance and Chief Financial Officer
Financial Officer                                                Safety-Kleen Corp.
1301 Gervais Street, Suite 300
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Henry H. Taylor; Vice President, General Counsel,                Vice President, General Counsel, and
and Secretary                                                    Secretary
1301 Gervais Street, Suite 300                                   Safety-Kleen Corp.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
David M. Sprinkle; President Chemical Services Division          President Chemical Services Division
1301 Gervais Street, Suite 300                                   Safety-Kleen Corp.
Columbia, South Carolina 29201
---------------------------------------------------------------- -----------------------------------------------------------
Roy Dean  Bullinger;  Senior Vice President                      President  Branch Sales and Service
1301 Gervais Street, Suite 300                                   Division
Columbia, South Carolina 29201                                   Safety-Kleen Corp.
---------------------------------------------------------------- -----------------------------------------------------------
John W. Rollins, Jr.; Director                                   President and Chief Executive Officer
220 Concord Pike                                                 Rollins Truck Leasing Corp. (truck leasing company)
One Rollins Plaza
Wilmington, Delaware 19803
---------------------------------------------------------------- -----------------------------------------------------------
Henry B. Tippie; Director                                        Chairman of the Board, President and Chief Executive
3420 Executive Center Drive N.W.                                 Officer
Suite 163                                                        Tippie Services, Inc. (management services company)
Austin, Texas 78731
---------------------------------------------------------------- -----------------------------------------------------------
James L. Wareham; Director                                       President
703 Curtis Street                                                AK Steel Corporation (steel manufacturing company)
Middleton, Ohio 45043
---------------------------------------------------------------- -----------------------------------------------------------
Robert W. Luba; Director                                         President
121 King Street West, #2525                                      Luba Financial, Inc. (investment banking company)
Toronto, Ontario M5H 3T9
Canada
---------------------------------------------------------------- -----------------------------------------------------------
Kenneth K. Chalmers; Director                                    Business Consultant
Sears Tower, Suite 9650
233 South Wacker Drive
Chicago, IL 60606
---------------------------------------------------------------- -----------------------------------------------------------
</TABLE>


<PAGE>


                                    EXHIBIT D

                             Joint Filing Agreement
                             ----------------------

         In  accordance  with Rule  13d-1(f)  promulgated  under the  Securities
Exchange Act of 1934, as amended, the persons named below agree that this filing
is made on behalf of each of them and  further  agree  that  this  Joint  Filing
Agreement  be  included as an Exhibit to such joint  filing.  Each party to this
Joint  Filing  Agreement  expressly  authorizes  each other party to file on its
behalf  any and all  amendments  to such  Statement.  In  evidence  thereof  the
undersigned,  being duly authorized,  hereby execute this Joint Filing Agreement
dated January 4, 2001.

January 4, 2001                                   SAFETY-KLEEN SYSTEMS, INC.
--------------------------
(Date)

                                              By:  /s/ Henry H. Taylor
                                                  -----------------------------
                                                  Henry H. Taylor, President


January 4, 2001                                   SAFETY-KLEEN SERVICES, INC.
--------------------------
(Date)

                                              By:  /s/ Henry H. Taylor
                                                  -----------------------------
                                                  Henry H. Taylor, President

January 4, 2001                                   SAFETY-KLEEN CORP.
--------------------------
(Date)

                                              By:  /s/ Henry H. Taylor
                                                  -----------------------------
                                                  Henry H. Taylor, Vice
                                                  President, General Counsel and
                                                  Secretary


<PAGE>


                                    EXHIBIT E

THIS WARRANT AND THE SECURITIES  ISSUABLE UPON EXERCISE OF THIS WARRANT HAVE NOT
BEEN  REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE  "SECURITIES
ACT"), AND MAY NOT BE SOLD, OFFERED FOR SALE, ASSIGNED, TRANSFERRED OR OTHERWISE
DISPOSED OF, UNLESS REGISTERED  PURSUANT TO THE PROVISIONS OF THE SECURITIES ACT
OR AN OPINION  OF  COUNSEL  IS  OBTAINED  STATING  THAT SUCH  DISPOSITION  IS IN
COMPLIANCE WITH AN AVAILABLE EXEMPTION FROM SUCH REGISTRATION.



NOVEMBER 13, 2000



                           SYSTEMONE TECHNOLOGIES INC.

              (INCORPORATED UNDER THE LAWS OF THE STATE OF FLORIDA)

               WARRANT FOR THE PURCHASE OF SHARES OF COMMON STOCK

NO. WRT-B1

         FOR VALUE RECEIVED,  SYSTEMONE TECHNOLOGIES INC., a Florida corporation
(the "Company"),  hereby certifies that  SAFETY-KLEEN  SYSTEMS,  INC. or assigns
("S-K" or the "Holder") is entitled,  subject to the provisions of this Warrant,
to purchase  from the  Company,  up to 1,134,615  fully paid and  non-assessable
shares of Common Stock at a price of $3.50 per share (the "Exercise Price").

         The term  "Common  Stock" means the Common  Stock,  par value $.001 per
share,  of the Company as  constituted  on the date of issuance of this Warrant.
The number of shares of Common  Stock to be received  upon the  exercise of this
Warrant may be adjusted from time to time as hereinafter  set forth.  The shares
of Common Stock  deliverable  upon such  exercise,  and as adjusted from time to
time,  are  hereinafter   referred  to  as  "Warrant  Stock."  The  term  "Other
Securities"  means any other equity or debt securities that may be issued by the
Company  in  addition  thereto  or in  substitution  for the  Warrant  Stock  in
accordance  with the terms  hereof.  The term  "Company"  means and includes the
corporation  named above as well as (i) any  immediate or more remote  successor
corporation  resulting from the merger or  consolidation of such corporation (or
any immediate or more remote  successor  corporation of such  corporation)  with
another  corporation,  or (ii) any corporation to which such corporation (or any
immediate  or  more  remote  successor  corporation  of  such  corporation)  has
transferred  its  property  or  assets as an  entirety  or  substantially  as an
entirety.

         Upon receipt by the Company of evidence  reasonably  satisfactory to it
of the loss, theft,  destruction or mutilation of this Warrant, and (in the case
of loss, theft or destruction) of reasonably satisfactory  indemnification,  and
upon surrender and cancellation of this Warrant, if mutilated, the Company shall
execute and  deliver a new Warrant of like tenor and date.  Any such new Warrant

<PAGE>

executed and delivered shall constitute an additional  contractual obligation on
the part of the Company,  whether or not this Warrant so lost, stolen, destroyed
or mutilated shall be at any time enforceable by anyone.

         The Holder agrees with the Company that this Warrant is issued, and all
the  rights  hereunder  shall  be  held  subject  to,  all  of  the  conditions,
limitations and provisions set forth herein.

         1.       EXERCISE OF WARRANT.

                  1.1  CASH  EXERCISE.   Subject  to  the  requirements  of  the
Hart-Scott-Rodino  Antitrust  Improvements  Act of 1976,  as  amended  (the "HSR
Act"), this Warrant may be exercised,  in whole or in part, at any time, or from
time to time during the period  commencing  on the date hereof and expiring (the
"Expiration  Date")  5:00  p.m.  Eastern  Time on the fifth  anniversary  of the
Effective Date (as defined in the Marketing and Distribution Agreement, dated as
of the date  hereof  between the Company and  Safety-Kleen  Systems,  Inc.),  by
presentation  and  surrender  of this  Warrant to the  Company at its  principal
office,  or at the office of its stock transfer  agent, if any, with the Warrant
Exercise Form attached  hereto duly executed and  accompanied by payment (either
in cash or by  certified  or official  bank  check,  payable to the order of the
Company) of the Exercise  Price for the number of shares  specified in such form
and instruments of transfer, if appropriate, duly executed by the Holder or his,
her or its duly authorized attorney. If this Warrant should be exercised in part
only,  the Company  shall,  upon  surrender  of this  Warrant for  cancellation,
execute and deliver a new Warrant evidencing the rights of the Holder thereof to
purchase the balance of the shares  purchasable  hereunder.  Upon receipt by the
Company of this Warrant,  together with the Exercise Price, at its office, or by
the stock  transfer  agent of the  Company  at its  office,  in proper  form for
exercise, the Holder shall be deemed to be the holder of record of the shares of
Common  Stock  issuable  upon  such  exercise,  notwithstanding  that the  stock
transfer  books  of the  Company  shall  then be  closed  or  that  certificates
representing such shares of Common Stock shall not then be actually delivered to
the Holder.  The Company shall cause the  certificate  evidencing  the shares of
Common Stock  issuable  upon such  exercise to be delivered to the Holder or its
order within 7 days after such exercise is effective.  The Company shall pay any
and all documentary  stamp or similar issue or transfer taxes payable in respect
of the issue or delivery of shares of Common  Stock on exercise of this  Warrant
other than taxes arising out of the fact that the shares issuable  hereunder are
to be delivered to a person other than the Holder.

                  1.2 CASHLESS EXERCISE.  Subject to the requirements of the HSR
Act, this Warrant may be exchanged,  in whole or in part (a "Warrant Exchange"),
at any time,  or from time to time,  during  the period  commencing  on the date
hereof and ending on the  Expiration  Date,  into the number of shares of Common
Stock  determined  in  accordance  with this  Section 1.2, by  presentation  and
surrender  of this  Warrant to the Company at its  principal  office,  or at the
office of its stock transfer agent, if any,  accompanied by a notice in the form
attached  hereto (a "Notice of  Exchange")  stating  that this  Warrant is being
exchanged  and the  number  of  shares  of  Common  Stock  to be  exchanged.  In
connection with any Warrant Exchange,  this Warrant shall represent the right to
subscribe  for and acquire the number of shares of Common Stock  (rounded to the
nearest whole number) equal to (i) the number of shares  specified by the Holder
in its Notice of Exchange  (the "Total  Number") less the number of shares equal
to the quotient obtained by dividing (A) the product of the Total Number and the
then applicable  Exercise Price

<PAGE>

by (B) the then fair market  value  (determined  in  accordance  with  Section 3
below) per share of Common  Stock.  If this Warrant  should be exchanged in part
only,  the Company  shall,  upon  surrender  of this  Warrant for  cancellation,
execute and deliver a new Warrant evidencing the rights of the Holder thereof to
purchase the balance of the shares  purchasable  hereunder.  Upon receipt by the
Company of this Warrant,  together with a duly executed  Notice of Exchange,  at
its office,  or by the stock  transfer  agent of the Company at its office,  the
Holder  shall be deemed to be the holder of record of the shares of Common Stock
issuable upon such  exchange,  notwithstanding  that the stock transfer books of
the Company shall then be closed or that  certificates  representing such shares
of Common Stock shall not then be actually  delivered to the Holder. The Company
shall cause the certificate  evidencing the shares of Common Stock issuable upon
such  exchange to be  delivered  to the Holder or its order  within 7 days after
such exchange is effective.  The Company shall pay any and all documentary stamp
or similar  issue or transfer  taxes payable in respect of the issue or delivery
of shares of Common Stock on exchange of this Warrant  other than taxes  arising
out of the fact that the shares  issuable  hereunder  are to be  delivered  to a
person other than the Holder.

                  1.3 The Company shall make all pre-merger notification filings
as may be  reasonably  requested by the Holder in  connection  with any required
compliance with the HSR Act.

         2.  RESERVATION  OF SHARES.  The Company will at all times  reserve for
issuance and delivery  upon  exercise of this Warrant all shares of Common Stock
or other shares of capital stock of the Company (and Other Securities) from time
to time  receivable  upon exercise of this  Warrant.  All such shares (and Other
Securities) shall be duly authorized and, when issued upon such exercise,  shall
be validly  issued,  fully paid and  non-assessable  and free of all  preemptive
rights.

         3.  FRACTIONAL  SHARES.  No  fractional  shares  or scrip  representing
fractional  shares  shall be issued upon the exercise of this  Warrant,  but the
Company  shall pay the Holder an amount  equal to the fair market  value of such
fractional  share of Common Stock in lieu of each fraction of a share  otherwise
called for upon any exercise of this Warrant.  For purposes of this Warrant, the
fair market value of a share of Common Stock shall be determined as follows:

                           (a)      If the Common Stock is listed  on a National
Securities  Exchange or admitted to unlisted trading privileges on such exchange
or listed for trading on the NASDAQ  system,  the current  market value shall be
the last  reported  sale price of the Common Stock on such exchange or system on
the last  business  day prior to the date of exercise  of this  Warrant or if no
such sale is made on such day,  the average of the closing bid and asked  prices
for such day on such exchange or system; or

                           (b)      If the Common  Stock  is  not so  listed  or
admitted to unlisted trading  privileges,  the current market value shall be the
mean of the  last  reported  bid  and  asked  prices  reported  by the  National
Quotation  Bureau,  Inc.  on the  last  business  day  prior  to the date of the
exercise of this Warrant; or

                           (c)      If  the  Common Stock is  not so  listed  or
admitted  to unlisted  trading  privileges  and bid and asked  prices are not so
reported,  the current market value shall be an amount, not less than book value
thereof as at the end of the most recent fiscal year of the Company ending

<PAGE>

prior to the date of the  exercise of the  Warrant,  determined  by the Board of
Directors of the Company in good faith.

         4. EXCHANGE,  TRANSFER,  ASSIGNMENT OR LOSS OF WARRANT. This Warrant is
exchangeable,  without expense,  at the option of the Holder,  upon presentation
and  surrender  hereof to the  Company  or at the  office of its stock  transfer
agent,  if any, for other  Warrants of different  denominations,  entitling  the
Holder or Holders thereof to purchase in the aggregate the same number of shares
of Common Stock  purchasable  hereunder.  Upon  surrender of this Warrant to the
Company  or at the  office  of its  stock  transfer  agent,  if  any,  with  the
Assignment  Form annexed  hereto duly  executed and funds  sufficient to pay any
transfer tax, subject to the provisions of Section 7 hereof,  the Company shall,
without  charge,  execute and deliver a new Warrant in the name of the  assignee
named in such  instrument  of  assignment  and this  Warrant  shall  promptly be
canceled. This Warrant may be divided or combined with other Warrants that carry
the same rights upon presentation  hereof at the office of the Company or at the
office of its stock  transfer  agent,  if any,  together  with a written  notice
specifying  the names and  denominations  in which new Warrants are to be issued
and signed by the Holder hereof.

         5. RIGHTS OF THE HOLDER.  The Holder  shall not, by virtue  hereof,  be
entitled  to any rights of a  shareholder  in the  Company,  either at law or in
equity,  and the  rights of the Holder are  limited to those  expressed  in this
Warrant.

         6.       ANTI-DILUTION PROVISIONS.

                  6.1 ADJUSTMENT FOR  RECAPITALIZATION.  If the Company shall at
any time subdivide its outstanding  shares of Common Stock (or Other  Securities
at the time  receivable  upon the exercise of the Warrant) by  recapitalization,
reclassification  or split-up  thereof,  or if the Company shall declare a stock
dividend or distribute shares of Common Stock to its shareholders, the number of
shares  of  Common  Stock  subject  to this  Warrant  immediately  prior to such
subdivision shall be  proportionately  increased and the Exercise Price shall be
proportionately  decreased,  and if the  Company  shall at any time  combine the
outstanding  shares of Common  Stock by  recapitalization,  reclassification  or
combination  thereof,  the number of shares of Common Stock or Other  Securities
subject  to  this  Warrant  immediately  prior  to  such  combination  shall  be
proportionately  decreased  and the  Exercise  Price  shall  be  proportionately
increased.  Any such adjustments pursuant to this Section 6.1 shall be effective
at  the  close  of  business  on the  effective  date  of  such  subdivision  or
combination  or  if  any  adjustment  is  the  result  of a  stock  dividend  or
distribution  then the effective date for such adjustment based thereon shall be
the record date therefor.

                  6.2 ADJUSTMENT FOR REORGANIZATION, CONSOLIDATION, MERGER, ETC.
In  case  of any  reorganization  of the  Company  (or  any  other  entity,  the
securities of which are at the time  receivable on the exercise of this Warrant)
after the date  hereof or in case after such date the Company (or any such other
entity)  shall  consolidate  with or merge into another  entity or convey all or
substantially all of its assets to another entity,  then, and in each such case,
the Holder of this Warrant upon the exercise thereof as provided in Section 1 at
any time after the consummation of such reorganization, consolidation, merger or
conveyance, shall be entitled to receive, in lieu of the

<PAGE>

securities  and property  receivable  upon the exercise of this Warrant prior to
such  consummation,  the  securities or property to which such Holder would have
been entitled upon such  consummation  if such Holder had exercised this Warrant
immediately prior thereto; in each such case, the terms of this Warrant shall be
applicable to the  securities or property  receivable  upon the exercise of this
Warrant after such consummation.

                  6.3  CERTIFICATE  AS  TO  ADJUSTMENTS.  In  each  case  of  an
adjustment  in the  number  of  shares  of  Warrant  Stock or  Other  Securities
receivable on the exercise of this Warrant,  or the Exercise Price,  the Company
at its expense will promptly  compute such  adjustment  in  accordance  with the
terms of this Warrant and prepare a certificate executed by an executive officer
of the Company  setting  forth such  adjustment  and showing in detail the facts
upon which such  adjustment is based.  The Company will forthwith mail a copy of
each such certificate to the Holder.

                  6.4      NOTICES OF RECORD DATE, ETC.  In case:

                           (a)      the  Company  shall  take a  record  of  the
holders of its Common Stock (or Other Securities at the time receivable upon the
exercise  of the  Warrant)  for the  purpose of  entitling  them to receive  any
dividend  (other  than a cash  dividend at the same rate as the rate of the last
cash dividend theretofore paid) or other distribution, or any right to subscribe
for, purchase or otherwise acquire any shares of stock of any class or any other
securities, or to receive any other right; or

                           (b)     of any capital reorganization of the Company,
any  reclassification of the capital stock of the Company,  any consolidation or
merger of the Company with or into another  entity,  or any conveyance of all or
substantially all of the assets of the Company to another entity; or

                           (c)      of any voluntary or involuntary dissolution,
liquidation,  partial liquidation or winding up of the Company,

then,  and in each such case,  the  Company  shall mail or cause to be mailed to
each Holder of the Warrant at the time outstanding a notice  specifying,  as the
case may be,  (i) the date on which a record is to be taken for the  purpose  of
such dividend,  distribution  or right,  and stating the amount and character of
such  dividend,   distribution  or  right,  or  (ii)  the  date  on  which  such
reorganization,    reclassification,    consolidation,    merger,    conveyance,
dissolution,  liquidation or winding up is to take place,  and the time, if any,
to be fixed,  as to which the  holders of record of Common  Stock (or such Other
Securities  at the time  receivable  upon the exercise of the Warrant)  shall be
entitled to exchange their shares of Common Stock (or such Other Securities) for
securities   or   other   property   deliverable   upon   such   reorganization,
reclassification, consolidation, merger, conveyance, dissolution, liquidation or
winding  up.  Such  notice  shall be mailed  at least 20 days  prior to the date
therein specified.
                  6.5  RIGHT  OF  FIRST  REFUSAL.   Subject  to  the  terms  and
conditions  specified in this Section,  the Company hereby grants to S-K a right
of first  refusal  with  respect to future sales by the Company of shares of its
Common Stock or securities  convertible into or exercisable for

<PAGE>

shares of Common Stock other than Excluded Shares (as defined below)  ("Shares")
in accordance with the following provisions:

                           (a)      Each  time  the Company  proposes  to  offer
for sale any Shares (i) to Environmental  Opportunities Fund, LP,  Environmental
Opportunities Fund II, LP, Environmental  Opportunities Fund II (Institutional),
LP,  Environmental  Opportunities Fund (Cayman),  LP, Hanseatic  Americas,  LDC,
Hanseatic Americas,  LDC, or any entity that is an affiliate (as defined in Rule
12b-2 under the Securities Exchange Act of 1934, as amended (the "1934 Act")) of
any thereof at a price per share of Common  Stock of less than $3.50 and (ii) to
any other person at a price per share of Common Stock less than the Market Price
(as  defined  below)  determined  as of the date that is three days prior to the
date  of  the  notice  described  below,  unless  such  sale  is  pursuant  to a
registration  statement  filed by the Company under the Act in connection with a
firm commitment  underwritten  offering of its securities to the general public,
the Company shall deliver a notice (the "Section 6.5 Notice") to S-K stating (i)
its BONA FIDE intention to offer such Shares,  (ii) the number of such Shares to
be offered  and (iii) the price and terms upon which it  proposes  to offer such
Shares.  Within ten (10)  business days after receipt of the Section 6.5 Notice,
S-K may elect to purchase or obtain,  at the price and on the terms specified in
the  Section 6.5  Notice,  that number of shares of Common  Stock of the Company
equal to the product  obtained by multiplying (i) the aggregate number of Shares
covered by the Section 6.5 Notice by (ii) a fraction,  the numerator of which is
the  number of shares of Common  Stock of the  Company  at the time owned by S-K
(assuming  exercise in full of this Warrant) and the denominator of which is the
aggregate number of outstanding  shares of Common Stock of the Company (assuming
conversion or exercise of all then convertible securities, options, warrants and
other  rights  to  purchase  Common  stock  into or for  Common  Stock) it being
understood  that S-K may condition its obligation to purchase Shares pursuant to
an election as contemplated  above upon the receipt of approval of such purchase
by the Bankruptcy Court (as defined in the Marketing and Distribution Agreement,
dated as of the date hereof  between the Company and S-K) or upon S-K's  receipt
of a discharge in Bankruptcy Case No. 00-2362;  provided,  however, that if such
approval or discharge  does not occur on or prior to February 1, 2002 then S-K's
election to purchase Shares shall be void.

                           (b)     If all Shares which S-K is entitled to obtain
pursuant  to  Subsection  6.5(a) are not  elected  to be  obtained  as  provided
therein,  the Company may, during the 90-day period  following the expiration of
the 10-day period  provided in Subsection  6.5(a)  hereof,  sell or transfer the
remaining  unsubscribed  portion  of such  Shares to any  person or persons at a
price not less than, and upon terms no more favorable to the offeree than, those
specified  in the  Section 6.5  Notice.  If the  Company  does not enter into an
agreement  for the sale of the Shares  within  such  period,  or if such sale or
transfer  is not  consummated  within ten (10)  business  days of the  execution
thereof,  S-K's rights under Subsection 6.5(a) with respect to such Shares shall
be deemed to be  revived  and such  Shares  shall not be  offered  unless  first
reoffered to S-K in accordance herewith.

                           (c)      For  purposes  hereof,  the  term  "Excluded
Shares"  shall  mean (1) any  shares of  Common  Stock  issued in a  transaction
described in Sections  6.1 or 6.2 of this  Warrant;  (2)  issuances of shares of
Common Stock from time to time pursuant to employment

<PAGE>

agreements,  stock option or bonus plans authorized by the Board of Directors of
the Corporation as of the date hereof, (3) issuances of Common Stock, or options
to  acquire  shares  of  Common  Stock,  or  securities   convertible   into  or
exchangeable  for Common Stock  pursuant to the terms of any  acquisition by the
Company of all or substantially  all of the operating assets, or more than fifty
percent (50%) of the voting capital stock or other  controlling  interest of any
business  entity  in a  transaction  negotiated  on  an  arms-length  basis  and
expressly  approved in advance by the Board of  Directors  of the  Company;  (4)
issuances  of  shares  of Common  Stock  from  time to time  upon the  exercise,
exchange  or  conversion  of  warrants,  options,  convertible  securities,  the
Company's  outstanding 8 1/4%  Subordinated  Convertible Notes Due 2003 or other
securities  outstanding  as of the date hereof and pursuant to the written terms
of such  securities  as they exist as of the date hereof,  and (5)  issuances of
shares  of  Common  Stock  from  time  to  time  pursuant  to the  anti-dilution
provisions of other securities of the Company,  including,  without  limitation,
shares of the Company's  outstanding Series B, Series C and Series D Convertible
Preferred Stock.

                           (d)     For purposes hereof, "Market Price" means 85%
of the average fair market value (i) as set forth in  paragraphs  (a) or (b), as
applicable,  of  Section  3  hereof  for  the  10  trading  days  ending  on the
determination  date or, (ii) in the event that neither of such  paragraph (a) or
(b) is applicable,  as determined in accordance  with paragraph (c) of Section 3
hereof.

                           (e)      For  purposes hereof,  the "price  per share
of Common  Stock"  involving  the issuance of Common Stock  pursuant to options,
warrants,  convertible  securities  and other  rights to purchase  Common  Stock
("Options")  shall be  determined  by  dividing  (i) the total  amount,  if any,
received or receivable by the Company as consideration  for the granting or sale
of such Options,  plus the aggregate amount of additional  consideration payable
to the Company upon exercise or conversion of such Options,  if any, by (ii) the
total number of shares of Common Stock  issuable upon the exercise or conversion
of such Options.

         7.  TRANSFER TO COMPLY WITH THE  SECURITIES  ACT.  Notwithstanding  any
other provision  contained  herein,  this Warrant and any Warrant Stock or Other
Securities  may not be sold,  transferred,  pledged,  hypothecated  or otherwise
disposed of except as follows: (a) to a person who, in the opinion of counsel to
the  Company,  is a person to whom this  Warrant or the  Warrant  Stock or Other
Securities  may  legally be  transferred  without  registration  and without the
delivery of a current  prospectus under the Securities Act with respect thereto;
or (b) to any person upon delivery of a prospectus then meeting the requirements
of the Securities Act relating to such  securities and the offering  thereof for
such sale or disposition, and thereafter to all successive assignees.

         8.       REGISTRATION RIGHTS.

                  8.1      CERTAIN  DEFINITIONS. For purposes of this Section 8,
                           --------------------
 the  following  terms are defined as follows:

                           (a)      The term "Act" means  the Securities  Act of
1933, as amended.

                           (b)      The   term  "register,"  "registered,"   and
tration" refer to a registration effected by preparing and filing a registration
statement or similar document in

<PAGE>

compliance  with the Act, and the  declaration or ordering of  effectiveness  of
such registration statement or document.

                           (c)      The term "Registrable  Securities" means (i)
Warrant Stock and Other Securities issued to the Holder pursuant to this Warrant
and (ii) the Company's Common Stock or Other Securities  issued or issuable upon
an adjustment for stock splits, stock dividends and the like with respect to the
Warrant Stock and Other Securities described in clause (i).

                           (d)      The  term  "SEC"  means  the  Securities and
Exchange Commission.

                  8.2.  COMPANY  REGISTRATION.  If  after  the date  hereof  the
Company proposes to register (including for this purpose a registration effected
by the Company for shareholders other than the Holder) any of its stock or other
equity securities under the Act (other than a registration on Form S-8 or S-4 or
any successor  form),  then the Company shall,  at such time,  promptly give the
Holder  written  notice of such  registration.  Upon the written  request of the
Holder  given  within  twenty  (20) days  after  mailing  of such  notice by the
Company,  the Company shall,  subject to the provisions of Section 8.5, cause to
be registered  under the Act all of the  Registrable  Securities that the Holder
has requested to be registered.

                  8.3 OBLIGATIONS OF THE COMPANY.  Whenever  required under this
Section 8 to effect the registration of any Registrable Securities,  the Company
shall, as expeditiously as reasonably possible:

                           (a)     Prepare and file with the SEC such amendments


and  supplements  to such  registration  statement  and the  prospectus  used in
connection with such  registration  statement as may be necessary to comply with
the  provisions  of the Act with respect to the  disposition  of all  securities
covered by such registration statement.

                           (b)      Furnish to the Holder such numbers of copies
of a prospectus,  including a  preliminary  prospectus,  in conformity  with the
requirements  of the Act, and such other  documents as the Holder may reasonably
request in order to facilitate the disposition of Registrable  Securities  owned
by it.

                           (c)      Use its reasonable  best efforts to register
and qualify the securities  covered by such  registration  statement  under such
other  securities or Blue Sky laws of such  jurisdictions as shall be reasonably
requested  by the Holder;  provided  that the  Company  shall not be required in
connection  therewith or as a condition  thereto to qualify to do business or to
file a general consent to service of process in any such states or jurisdictions
unless the Company is already subject to service in such jurisdiction and except
as may be required by the Act.

                           (d)      Enter into and perform its obligations under
an  underwriting  agreement,  in usual and  customary  form,  with the  managing
underwriter(s)  of  such  offering.  If the  Holder  is  participating  in  such
underwriting it shall also enter into and perform its obligations  under such an
agreement.

<PAGE>

                           (e)      Notify  the Holder of Registrable Securities
covered by such  registration  statement at any time when a prospectus  relating
thereto is required to be delivered  under the Act of the happening of any event
as a result of which the prospectus included in such registration  statement, as
then in effect,  includes  an untrue  statement  of a material  fact or omits to
state a material  fact  required to be stated  therein or  necessary to make the
statements  therein not misleading in light of the circumstances  then existing,
and at the request of the Holder, prepare and furnish to the Holder a reasonable
number of copies of a supplement to or an amendment of such prospectus as may be
necessary so that, as thereafter delivered to the purchaser of such shares, such
prospectus  shall not include an untrue  statement of a material fact or omit to
state a material  fact  required to be stated  therein or  necessary to make the
statements  therein not  misleading or incomplete in light of the  circumstances
then existing.

                           (f)      Cause all such Registrable Securities regis-
tered pursuant hereto to be listed on each securities  exchange on which similar
securities issued by the Company are then listed.

                           (g)      Provide a transfer agent and  registrar  for
all Registrable Securities registered pursuant hereto and a CUSIP number for all
such Registrable  Securities,  in each case not later than the effective date of
such registration statement.

                  8.4 FURNISH INFORMATION.  It shall be a condition precedent to
the  obligations  of the Company to take any action  pursuant to this  Section 8
with respect to the  Registrable  Securities of the Holder that the Holder shall
furnish to the  Company  such  information  regarding  itself,  the  Registrable
Securities held by it, and the intended method of disposition of such securities
as shall be  required to effect the  registration  of the  Holder's  Registrable
Securities.

                  8.5 UNDERWRITING REQUIREMENTS. In connection with any offering
involving an underwriting of shares of the Company's  capital stock, the Company
shall  not be  required  to  include  any of the  Holder's  securities  in  such
underwriting  unless the Holder accepts the terms of the  underwriting as agreed
upon  between  the  Company  and the  underwriters  selected  by it (or by other
persons entitled to select the underwriters). If the total amount of securities,
including  Registrable  Securities,  requested by shareholders to be included in
such offering  pursuant to this Section 8 exceeds the amount of securities  that
the  underwriters  determine in their sole  discretion  will not  jeopardize the
success of such  offering,  then the Company shall be required to include in the
offering only that number of such securities,  including Registrable Securities,
which the underwriters  determine in their sole discretion,  will not jeopardize
the success of the offering (the  securities so included to be  apportioned  pro
rata among the selling shareholders  according to the total amount of securities
entitled to be included  therein  owned by each selling  shareholder  or in such
other proportions if mutually agreed to by such selling  shareholders) but in no
event  shall  any  shares  being  sold  by a  shareholder  exercising  a  demand
registration right be excluded from such offering. For purposes of the preceding
parenthetical concerning  apportionment,  for any selling shareholder which is a
holder  of  Registrable   Securities,   the  partners,   retired   partners  and
shareholders  of such  Holder,  or the  estates  and family  members of any such
Holder or of such  partners and retired  partners and any trusts for the benefit
of any of  the  foregoing  persons  shall  be  deemed  to be a  single  "selling
shareholder,"  and  any  pro-rata   reduction  with  respect  to  such

<PAGE>

"selling  shareholder"  shall  be based  upon the  aggregate  amount  of  shares
carrying  registration rights owned by all entities and individuals  included in
such "selling shareholder," as defined in this sentence.

                  8.6 DELAY OF REGISTRATION. The Holder shall not have any right
to obtain or seek an  injunction  restraining  or  otherwise  delaying  any such
registration as the result of any  controversy  that might arise with respect to
the interpretation or implementation of this Section 8.

                  8.7      INDEMNIFICATION.   In   the  event  any   Registrable
   Securities   are  included in  a registration statement under this Section 8:

                           (a)      To the extent  permitted by law, the Company
will indemnify and hold harmless the Holder,  any underwriter (as defined in the
Act) for such Holder and each person,  if any, who controls  such Holder or such
Holder's  securities  or such  underwriter  within the meaning of the Act or the
1934 Act,  and each  officer,  director,  agent,  employee  and  partner  of the
foregoing against any losses,  claims, damages or liabilities (joint or several)
to which they may become subject  insofar as such losses,  claims,  damages,  or
liabilities  (or actions in respect  thereof) arise out of or are based upon any
of  the  following   statements,   omissions  or  violations   (collectively   a
"Violation"): (i) any untrue statement or alleged untrue statement of a material
fact  contained  in  such  registration  statement,  including  any  preliminary
prospectus  or  final  prospectus   contained   therein  or  any  amendments  or
supplements  thereto or any other document  prepared by the Company  incident to
such  registration,  (ii) the  omission or alleged  omission to state  therein a
material fact required to be stated therein, or necessary to make the statements
therein not  misleading,  or (iii) any  violation  or alleged  violation  by the
Company  of the Act,  the 1934  Act,  any  state  securities  law or any rule or
regulation  promulgated  under the Act, or the 1934 Act or any state  securities
law; and the Company will pay to each such indemnified person any legal or other
expenses  reasonably  incurred  by  them in  connection  with  investigating  or
defending any such loss, claim, damage, liability or action; PROVIDED,  HOWEVER,
that the indemnity agreement contained in this Subsection 8.7(a) shall not apply
to amounts paid in  settlement  of any such loss,  claim,  damage,  liability or
action if such settlement is effected  without the consent of the Company (which
consent shall not be unreasonably withheld),  nor shall the Company be liable in
any such  case for any such  loss,  claim,  damage,  liability  or action to the
extent  that it  arises  out of or is based  upon a  Violation  which  occurs in
reliance upon and in conformity with information  furnished in writing expressly
for use in connection  with such  registration  by such Holder,  underwriter  or
controlling person.

                           (b)      To the extent  permitted  by law, the Holder
will indemnify and hold harmless the Company, each of its directors, each of its
officers who has signed the  registration  statement,  each person,  if any, who
controls  the Company  within the meaning of the Act,  any  underwriter  and any
controlling person of any such underwriter,  against any losses, claims, damages
or  liabilities  (joint or  several) to which any of the  foregoing  persons may
become  subject  insofar as such  losses,  claims,  damages or  liabilities  (or
actions in respect  thereto)  arise out of or are based upon any  Violation,  in
each case to the extent (and only to the extent) that such  Violation  occurs in
reliance upon and in conformity  with  information  furnished in writing

<PAGE>

by such Holder expressly for use in connection with such registration,  and each
such Holder will pay to each such indemnified  party any legal or other expenses
reasonably  incurred by them in connection with  investigating  or defending any
such loss,  claim,  damage,  liability or action;  PROVIDED,  HOWEVER,  that the
indemnity  agreement  contained  in this  Subsection  8.7(b)  shall not apply to
amounts paid in settlement of any such loss, claim, damage,  liability or action
if such settlement is effected without the consent of the Holder,  which consent
shall not be unreasonably withheld.

                           (c)      Promptly  after  receipt by  an  indemnified
party  under  this  Section  8.7 of notice  of the  commencement  of any  action
(including any governmental  action), such indemnified party will, if a claim in
respect thereof is to be made against any indemnifying  party under this Section
8.7,  deliver to the  indemnifying  party a written  notice of the  commencement
thereof and the indemnifying  party shall have the right to participate in, and,
to the  extent  the  indemnifying  party so  desires,  jointly  with  any  other
indemnifying party similarly noticed, to assume the defense thereof with counsel
mutually  satisfactory to the parties;  provided,  HOWEVER,  that an indemnified
party  (together  with all other  indemnified  parties which may be  represented
without  conflict by one  counsel)  shall have the right to retain one  separate
counsel,  with the fees and expenses to be paid by the  indemnifying  party,  if
representation  of  such  indemnified  party  by  the  counsel  retained  by the
indemnifying  party would be inappropriate due to actual or potential  differing
interests between such indemnified party and any other party represented by such
counsel  in such  proceeding.  The  failure  to  deliver  written  notice to the
indemnifying  party  within a  reasonable  time of receipt of notice of any such
action,  if materially  prejudicial to its ability to defend such action,  shall
relieve such indemnifying  party of any liability to the indemnified party under
this  Section  8.7,  but  the  omission  so to  deliver  written  notice  to the
indemnifying  party will not relieve it of any liability that it may have to any
indemnified party otherwise than under this Section 8.7. No indemnifying  party,
in the  defense of any claim or  litigation,  shall,  except with the consent of
each  indemnified  party,  consent  to entry of any  judgment  or enter into any
settlement which does not include as an unconditional term thereof the giving by
the  claimant  or  plaintiff  to such  indemnified  party of a release  from all
liability in respect to such claim or litigation.  Each indemnified  party shall
furnish  such  information  regarding  itself  or the  claim in  question  as an
indemnifying  party may reasonably request in writing and as shall be reasonably
required  in  connection  with  defense of such claim and  litigation  resulting
therefrom.

                           (d)      If the indemnification  provided for in this
Section 8.7 is held by a court of competent jurisdiction to be unavailable to an
indemnified party with respect to any loss, liability,  claim, damage or expense
referred to therein,  then the indemnifying  party, in lieu of indemnifying such
indemnified  party hereunder,  shall contribute to the amount paid or payable by
such indemnified  party as a result of such loss,  liability,  claim,  damage or
expense in such  proportion as is  appropriate  to reflect the relative fault of
the indemnifying party on the one hand and of the indemnified party on the other
in  connection  with the  statements  or omissions  that  resulted in such loss,
liability,  claim,  damage or  expense as well as any other  relevant  equitable
considerations.  The  relative  fault  of  the  indemnifying  party  and  of the
indemnified  party 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

<PAGE>

indemnifying party or by the indemnified party and the parties' relative intent,
knowledge,  access to  information,  and  opportunity to correct or prevent such
statement or omission.

                           (e)      The  obligations of the Company  and  Holder
under  this  Section  8.7  shall  survive  the  completion  of any  offering  of
Registrable Securities in a registration statement under this Section 8.

                           (f)      Notwithstanding   the   foregoing,   to  the
extent that the provisions on indemnification and contribution  contained in the
underwriting  agreement  entered into in connection with an underwritten  public
offering are in conflict with the foregoing  provisions,  the  provisions in the
underwriting agreement shall control.

                  8.8 ASSIGNMENT OF REGISTRATION RIGHTS. The rights to cause the
Company to register  Registrable  Securities  pursuant to this  Section 8 may be
assigned (but only with all related  obligations)  by the Holder to a transferee
or assignee of such securities who, after such assignment or transfer,  holds at
least One Hundred Thousand (100,000) shares of Registrable  Securities  (subject
to appropriate  adjustment for stock splits,  stock dividends,  combinations and
other recapitalizations), PROVIDED: (a) the Company is, within a reasonable time
after such  transfer,  furnished  with written notice of the name and address of
such  transferee  or  assignee  and the  securities  with  respect to which such
registration  rights are being assigned;  (b) such transferee or assignee agrees
in  writing  to be bound by and  subject  to the  terms and  conditions  of this
Section 8 of this Agreement;  and (c) such assignment shall be effective only if
immediately  following such transfer the further  disposition of such securities
by the  transferee  or assignee is  restricted  under the Act.  For  purposes of
satisfying the  aforementioned  100,000 share  threshold,  shares of Registrable
Securities held by "affiliates" (as such term is defined in Rule 12b-2 under the
1934 Act) shall be aggregated.

                  8.9 "MARKET  STAND-OFF"  AGREEMENT.  The Holder  hereby agrees
that, during the period of duration  specified by the Company and an underwriter
of Common Stock or other  securities  of the Company,  following the date of the
first sale to the public  pursuant to a  registration  statement  of the Company
filed under the Act, it shall not,  to the extent  requested  by the Company and
such underwriter,  directly or indirectly sell, offer to sell,  contract to sell
(including, without limitation, any short sale), grant any option to purchase or
otherwise transfer or dispose of (other than to donees who agree to be similarly
bound) any  securities  of the Company held by it at any time during such period
except Common Stock included in such registration;  PROVIDED, HOWEVER, that such
market  stand-off time period shall not exceed one hundred eighty (180) days. In
order to enforce the foregoing  covenant,  the Company may impose  stop-transfer
instructions  with respect to the Registrable  Securities of the Holder (and the
shares or securities of every other person subject to the foregoing restriction)
until the end of such period.

<PAGE>

                  8.10  TERMINATION OF REGISTRATION  RIGHTS.  No Holder shall be
entitled to exercise  any right  provided for in this Section 8 if all shares of
Registrable  Securities  held or entitled to be held upon exercise by the Holder
may immediately be sold under Rule 144 during any 90-day period.

                  8.11  EXPENSES  OF  REGISTRATION.  All  Registration  Expenses
incurred in connection with any  registration,  qualification or compliance with
registration  pursuant to this Section 8 shall be borne by the Company,  and all
Selling Expenses of any Holder shall be borne by such Holder.

                           The  term  "Registration  Expenses"  shall  mean  all
expenses  to be  incurred by the  Company in  connection  with the  registration
rights under this Section 8, including, without limitation, all registration and
filing  fees,  printing  expenses,  fees and  disbursements  of counsel  for the
Company and its  independent  certified  public  accountants,  blue sky fees and
expenses,  and the expense of any special audits  incident to or required by any
such  registration  (but excluding the compensation of regular  employees of the
Company, which shall be paid in any event by the Company.

                           The term "Selling  Expenses"  shall  mean  all under-
writing discounts and selling commissions  applicable to the sale of Registrable
Securities  and all fees and  expenses  of the  Holders,  and each of them,  not
included within "Registration Expenses."

         9. LEGEND.  Unless the shares of Warrant Stock or Other Securities have
been  registered  under the Securities Act, upon exercise of any of the Warrants
and the issuance of any of the shares of Warrant Stock or Other Securities,  all
certificates  representing  such  securities  shall  bear  on the  face  thereof
substantially the following legend:

                  The securities  represented by this  certificate have not been
                  registered  under the Securities Act of 1933, as amended,  and
                  may not be sold,  offered for sale,  assigned,  transferred or
                  otherwise  disposed  of,  unless  registered  pursuant  to the
                  provisions  of that Act or unless an  opinion  of  counsel  is
                  obtained  stating that such  disposition is in compliance with
                  an available exemption from such registration.

         10. NOTICES. All notices, requests,  approvals and other communications
required or permitted  under this warrant shall be in writing and shall be given
by: (i)  facsimile  transmission  (to be confirmed by the means set forth in the
following clause (ii)); or (ii) nationally  recognized  overnight  courier (with
confirmation  of  delivery) to the Holder or the Company as  appropriate  to the
following addressees or to such other addresses as the Company or the Holder may
hereafter designate to such effect by notice to the other:

<PAGE>

         SYSTEMONE:         SystemOne Technologies Inc.
         ---------
                            8305 N.W. 27th Street, Suite 107,
                            Miami, Florida  33122
                            Attn:  Paul I. Mansur, Chief Executive Officer
                            Fax No.:  (305) 593-8018
         HOLDER:            Safety-Kleen Corp.
         ------
                            1301 Gervais Street
                            Columbia, South Carolina  29201
                            Attn:  David E. Thomas, Jr., Chief Executive Officer
                            Fax No.: (803) 933-4292

                            Copy to: General Counsel

                            Fax No.:  (803) 933-4303



Such notices and  communications  shall be effective:  (i) if given by facsimile
transmission,  when sent  addressed  as set  forth  above  and  transmission  is
confirmed;  or (ii) if by overnight  courier,  two business  days after  deposit
therewith.

         11.      APPLICABLE  LAW. The Warrant is issued under and shall for all
purposes be governed by and construed in  accordance  with the laws of the State
of Florida,  without  giving effect to the choice of law rules thereof.

         IN WITNESS HEREOF,  the Company has caused this Warrant to be signed on
its behalf, in its corporate name, by its duly authorized officer, all as of the
day and year first above written.

                                              SYSTEMONE TECHNOLOGIES INC.


                                              By: /S/ PAUL I. MANSUR
                                                 ------------------------
                                              Name:    Paul I. Mansur
                                              Title:   Chief Executive Officer

<PAGE>

                              WARRANT EXERCISE FORM

The undersigned  hereby irrevocably elects to exercise the within Warrant to the
extent  of  purchasing   ____________   shares  of  Common  Stock  of  SystemOne
Technologies  Inc.,  a  Florida   corporation,   and  hereby  makes  payment  of
$____________ in payment therefor.



                                              ----------------------------------
                                              Signature



                                              ----------------------------------
                                              Signature, if jointly held



                                              ----------------------------------
                                               Date



                       INSTRUCTIONS FOR ISSUANCE OF STOCK
                       ----------------------------------
         (if other than to the registered holder of the within Warrant)




Name
        ------------------------------------------------------------------------
                      (Please typewrite or print in block letters)


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



Social Security or
Taxpayer Identification Number
                               -------------------------------------------------


<PAGE>


                              WARRANT EXCHANGE FORM

The undersigned  hereby irrevocably elects to exchange the within Warrant to the
extent of surrendering ________ shares of Common Stock of SystemOne Technologies
Inc., a Florida corporation, in exchange for the number of such shares of Common
Stock determined in accordance with Section 1.2 of such Warrant.



                                              ----------------------------------
                                              Signature



                                              ----------------------------------
                                              Signature, if jointly held



                                              ----------------------------------
                                               Date



                       INSTRUCTIONS FOR ISSUANCE OF STOCK
                       ----------------------------------
         (if other than to the registered holder of the within Warrant)




Name
     ---------------------------------------------------------------------------
                      (Please typewrite or print in block letters)


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



Social Security or
Taxpayer Identification Number
                                ------------------------------------------------





<PAGE>


                                 ASSIGNMENT FORM



FOR VALUE RECEIVED,
                    ------------------------------------------------------------
hereby sells, assigns and transfers unto

Name
     ---------------------------------------------------------------------------
                      (Please typewrite or print in block letters)


the right to purchase  Common  Stock of SystemOne  Technologies  Inc., a Florida
corporation,  represented  by this  Warrant  to the extent of shares as to which
such right is  exercisable  and does hereby  irrevocably  constitute and appoint
___________________________________________  Attorney,  to transfer  the same on
the books of the Company with full power of substitution in the premises.


DATED:  ____________, 200_.




                                              ----------------------------------
                                              Signature



                                              ----------------------------------
                                              Signature, if jointly held


MIAMI/BARKUSD/1196738/pn#q01!.DOC/1/04/01/19218.010200




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