EXHIBIT 10.21

May 8, 1997

FIRST EXTENSION of Lease agreement dated April 1, 1992 by and between EURAM/1870
EXCHANGE ASSOCIATES (hereinafter called "Lessor") and ATLANTIS PLASTIC FILMS,
INC. (successor by name change to NATIONAL POLY PRODUCTS, INC.), (hereinafter
called "Lessee").

1.       Lessor and Lessee agree to a lease extension for a period of 5 years,
         commencing on June 1, 1997 and terminating at midnight on May 31, 2002.

2.       The monthly rental payment schedule will be as follows:
         6/01/97 - 5/31/99  $9,632.29
         6/01/99 - 5/31/01 $10,017.58 
         6/01/01 - 5/31/02 $10,402.88 
         There will be no CPI or DOE related or other increases added to the 
         above rental payments.

3.       Lessor will make the following improvements to the space at no cost to
         Lessee: 
         Repaint all painted surfaces with washable vinyl paint.
         Steam clean carpeting throughout. 
         Reasonable general clean up and repair.
         Replace all damaged and/or stained ceiling tiles, if any.
All of the above mentioned improvements will be finalized no later than June 30,
1997.

Lessor will further make sure that the roof of the building is in good workable
condition.

4.       In connection with EDI survey, known to Lessor and Lessee, Lessor will
         implement the following 4 items, which will be documented in writing:
         -  The control system air compressor will be isolated from the return 
            air stream.
         - Rotting wood or organic debris near the Air Handlers and outside air 
           intakes will be repaired or removed.
         - The ceiling supply diffusers in Suite 200 will be cleaned and light
           debris removed. 
         - The interior cleaning procedures will be reviewed and appropriate 
           dust collection bags will be required in vacuum cleaners.
         
         A fifth item from the survey will be implemented as far as possible
         considering the design and capacity of the existing HVAC system in the
         building. This item is that Lessor will attempt to verify that outside
         airflow to the building when the HVAC system induces minimum quantities
         of outside air HVAC system should provide a minimum of 0.14 cfm of
         outside air per square foot of usable area to comply with ASHRAE 
         Standard 62.89 requirements.

         The first 4 items to be implemented will be completed no later than 
         June 1, 1997. If any of these 4 items have not been completed at such 
         date, Lessee will be entitled to abate rental payments - to be prorated
         on a daily basis - until such time as Lessor has implemented these 
         items fully.

         Lessor and Lessee acknowledge and agree that non-compliance with the 
         fifth item of the EDI survey will not be grounds for rental abatement 
         by Lessee.

5.       Lessor and Lessee both acknowledge and agree that the EDI survey states
         that the building generally operates within applicable industry and
         regulatory indoor air quality guidelines and that implementing the
         above mentioned items should improve indoor air quality.

<PAGE>

6.       Lessor acknowledges and agrees that CTR Partners, LLP represents Lessee
         in this lease extension transaction.

7.       Lessor and Lessee agree that items 1, 2, 5, 7, 8, and 9 of the Special
         Stipulations attached to the original Lease agreement will no longer be
         valid.

8.       Item 6. of the Special Stipulations will be modified as follows:

         Lessor's address should read 750 The Healey Building instead of 
         300 The Healey Building.
         Lessee will be Atlantis Plastic Films, Inc. instead of Atlantis Group,
         Inc.
         Broker will be CTR Partners, LLP
                    35 Technology Parkway South
                    Suite 170
                    Norcross, Georgia 30092
                    Attn: Rob Coatsworth

9.       Except as modified by this extension agreement, the original Lease
         agreement with the attached Rules and Regulations and Special
         Stipulations will remain in full force and effect.

10.      Lessor is responsible for any real estate commissions due CTR Partners,
         LLP and/or AFCO Realty in connection with this extension.

IN WITNESS WHEREOF, Lessor and Lessee have executed this Lease extension on 14
May, 1997.

                                     LESSOR: EURAM/1870 EXCHANGE ASSOCIATES

                                     BY: /S/
                                        ----------------------------------------
                                     LESSEE: ATLANTIS PLASTIC FILMS, INC.

                                     BY: /S/
                                        ----------------------------------------