BMC INDUSTRIES INC/MN/
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<TYPE>EX-10.21
<SEQUENCE>7
<FILENAME>exhibit_10-21.htm
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<title>May 4, 2001 </title>
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<p>&nbsp;</p>

<p>&nbsp;</p>

<p><u><font size="6">BMC&nbsp;</font> <font size="4">Buckbee-Mears St. Paul</font></u></p>

<p>&nbsp;</p>

<p>May 4, 2001 </p>

<p>&nbsp;</p>

<p>Mr. Henry Zaidan <br>
President <br>
GMT Corporation<br>
245 E. Sixth Street<br>
St. Paul, MN 55101-1918</p>

<p>Dear Henry:</p>

<p>I would like to update GMT on the status of our
facilities plan and introduce our formal notice for another facility giveback
in 2001.</p>

<p>Prior Notification Updates:<br>
Fire barn<br></p>

<table border=0 cellspacing=0 cellpadding=0>
 <tr>
  <td width=36 valign=top align="right">
  <p>--</p>
  </td>
  <td width=505 valign=top>
  <p style="margin-left: 6; margin-bottom: 12">Per your request, we will giveback - 7,000 sq.
  ft. as described in our October 6, 2000 letter.&nbsp; Buckbee-Mears. St Paul will retain first floor rooms F101,
  F102, F103, F105 and F107 for out shipping/receiving operations.</p>
  </td>
 </tr>
 <tr>
  <td width=36 valign=top align="right">
  <p>--</p>
  </td>
  <td width=505 valign=top>
  <p style="margin-left: 6; margin-bottom: 12">We expect this project to be completed July
  2001.</p>
  </td>
 </tr>
 <tr>
  <td width=36 valign=top align="right">
  <p>--</p>
  </td>
  <td width=505 valign=top>
  <p style="margin-left: 6; margin-bottom: 12">GMT funds any costs
  associated with revamping utilities and modifying the facilities.</p>
  </td>
 </tr>
</table>

<p>5<sup>th</sup>Floor Park Square</p>

<table border=0 cellspacing=0 cellpadding=0>
 <tr>
  <td width=37 valign=top align="right">
  <p>--</p>
  </td>
  <td width=505 valign=top>
  <p style="margin-left: 6; margin-bottom: 6">In our letter dated 14-Jun-00 Buckbee-Mears,
  St. Paul requested to giveback -7,000 sq. ft. of Park Square 5<sup>th</sup>
  floor- space which included room P502, P508 and P509.&nbsp; Assuming the giveback ofthe fire
  barn is completed, we need to retain room P502 for material storage space.</p>
  </td>
 </tr>
 <tr>
  <td width=37 valign=top align="right">
  <p>--</p>
  </td>
  <td width=505 valign=top>
  <p style="margin-left: 6; margin-bottom: 6">We expect this project to be completed by
  I-July-0l.</p>
  </td>
 </tr>
 <tr>
  <td width=37 valign=top align="right">
  <p>--</p>
  </td>
  <td width=505 valign=top>
  <p style="margin-left: 6; margin-bottom: 6">GMT funds any costs
  associated with revamping utilities.</p>
  </td>
 </tr>
</table>

<p>New Business: <br>
6<sup>th</sup> Floor Park Square</p>

<table border=0 cellspacing=0 cellpadding=0>
 <tr>
  <td width=37 valign=top>
  <p align="right">--</p>
  </td>
  <td width=504 valign=top>
  <p style="margin-left: 6; margin-bottom: 5">Due to an unusuallylow sa1es forecast, we have reduced our staffing levels at
  BMSP.&nbsp; Therefore, we are providing
  notice that we will giveback all office space on the 6<sup>th</sup> floor
  Park Square Building.&nbsp; Per our
  contract, we will vacate the space in 5 months from the date of this
  letter.&nbsp; This area covers
  approximatc1y 2,700 sq. ft.</p>
  </td>
 </tr>
</table>

<p>Please contact me at
your earliest convenience to discuss.</p>

<p>Sincerely,</p>

<p>/s/Dennis Malacek&nbsp;</p>

<p>Dennis Ma1acek<br>Director of Manufacturing</p>

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