PURCHASE AGREEMENT
                               ------------------


     For  and  in  consideration  of  the  terms  hereof,  Aberdeen  Development
Corporation  of  416  Production  Street  North,  Aberdeen,  South Dakota 57401,
hereinafter  referred  to  as "Buyer", and APA Enterprises, Inc. of 2950 NE 84th
Lane,  Blaine,  MN  55449, hereinafter referred to as "Seller" agree to the sale
and  purchase  of  the  following described real property in Brown County, South
Dakota  as  follows:

1.   DESCRIPTION:
     -----------

     North  200  feet  of Lot 2 of the ADC 2005-1 Subdivision in Aberdeen, Brown
     County,  South  Dakota.

2.   PURCHASE  PRICE: The total purchase price shall be the sum of $ 120,000.00,
     ---------------
     which  shall be paid via the retirement of the outstanding loan between the
     parties  as  agreed  upon  on  April  13,  2005.

3.   TAXES:  Buyer  to  assume all taxes remaining unpaid and owing for 2005 and
     -----
     thereafter.

4.   TITLE:  Seller  shall  provide  to  Buyer a properly executed Warranty Deed
     -----
     conveying  to  Buyer  from  Seller  good  and  merchantable  title  to said
     premises,  subject  to  all  zoning  regulations,  restrictive  covenants,
     reservations,  rights-of-way  and  easements  of  record, and any rights of
     tenants  and  lessees.  Buyer  acknowledges the premises are unimproved and
     agrees  to  take  premises  in  'as-is'  condition.

5.   TITLE  INSURANCE:  Buyer to obtain title insurance at the Buyer's expense.
     ----------------

6.   TRANSFER  TAX:  Buyer  shall  be  responsible  for and pay the transfer tax
     -------------
     required to be paid upon recording of the deed to transfer.

7.   RECORDING FEE: Buyer shall bear the expense of recording the deed.
     --------------

8.   POSSESSION:  Buyer  shall  have  possession of said premises from and after
     ----------
     closing.

9.   CLOSING DATE: The closing date shall be on or about June 1, 2005.
     -------------                                       ------------


                                                              DUPLICATE ORIGINAL
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<PAGE>
     Dated this   1st   day of  June , 2005.
                 -----         ------


ABERDEEN  DEVELOPMENT                            APA  ENTERPRISES,  INC.
   CORPORATION

By:  /s/ Larry Frost                             By:  /s/  Anil  Jain
   ---------------------------                      ----------------------------
   Larry  Frost                                     Dr.  Anil  Jain

   Its:  President                                  Its:  President
         ---------------------                            ----------------------
                       BUYER                                            SELLER


WITNESS:                                         WITNESS:

/s/ Christopher A. Haas                                    /s/  Daniel  Herzog
------------------------------
  Christopher A. Haas                                      Daniel  Herzog
  ----------------------------------


                                                              DUPLICATE ORIGINAL
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