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  Notification of voting rights transmitted by euro adhoc. The issuer is
  responsible for the content of this announcement.
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Person/company obliged to make the notification:

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Name:    see publication
Place:   see publication
State:   USA

Company data:
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Name:    Klöckner & Co SE
Address: Am Silberpalais 1, 47057 Duisburg
Place:   Duisburg
State:   Deutschland

Pursuant to § 21 (1) Securities Trading Act (WpHG), Klöckner & Co SE, Am
Silberpalais 1, 47057 Duisburg, has been notified as follows on behalf of the
companies mentioned below:

1. BlackRock Institutional Trust Company, N.A., 400 Howard St, San Francisco, CA
94105, USA

2. BlackRock Delaware Holdings, Inc., c/o The Corporation Trust Company, 1209
Orange Street, Wilmington, Delaware 19801, United States

3. BlackRock Holdco 6 LLC, 40 East 52nd Street, New York, NY 10022, USA

4. BlackRock Holdco 4 LLC, 40 East 52nd Street, New York, NY 10022, USA

5. BlackRock Financial Management, Inc., 40 East 52nd Street, New York, NY
10022, USA

6. BlackRock Holdco 2, Inc., 1209 Orange Street, Wilmington, Delaware 19801, USA

7. BlackRock, Inc., 40 East 52nd Street, New York, 10022, USA

1. We should hereby like to inform you pursuant to Section 21 Paragraph 1 WpHG
that the percentage holding of the voting rights of BlackRock Institutional
Trust Company, N.A. in Klöckner & Co SE fell below the threshold of 3% on
27.04.2010 and amounts to 2.80% (1,861,896 voting shares) on that day. All of
the voting rights are attributable to BlackRock Institutional Trust Company,
N.A. pursuant to Section 22 Paragraph 1 Sentence 1 no. 6 WpHG.

2. We should hereby like to inform you pursuant to Section 21 Paragraph 1 WpHG
that the percentage holding of the voting rights of BlackRock Delaware Holdings,
Inc. in Klöckner & Co SE fell below the threshold of 3% on 27.04.2010 and
amounts to 2.80% (1,861,896 voting shares) on that day. All of the voting rights
are attributable to BlackRock Delaware Holdings, Inc. pursuant to Section 22
Paragraph 1 Sentence 1 no. 6 in connection with Sentence 2 WpHG.

3. We should hereby like to inform you pursuant to Section 21 Paragraph 1 WpHG
that the percentage holding of the voting rights of BlackRock Holdco 6 LLC in
Klöckner & Co SE fell below the threshold of 3% on 27.04.2010 and amounts to
2.80% (1,861,896 voting shares) on that day. All of the voting rights are
attributable to BlackRock Holdco 6 LLC pursuant to Section 22 Paragraph 1
Sentence 1 no. 6 in connection with Sentence 2 WpHG.

4. We should hereby like to inform you pursuant to Section 21 Paragraph 1 WpHG
that the percentage holding of the voting rights of BlackRock Holdco 4 LLC in
Klöckner & Co SE fell below the threshold of 3% on 27.04.2010 and amounts to
2.80% (1,861,896 voting shares) on that day. All of the voting rights are
attributable to BlackRock Holdco 4 LLC pursuant to Section 22 Paragraph 1
Sentence 1 no. 6 in connection with Sentence 2 WpHG. 

5. We should hereby like to inform you pursuant to Section 21 Paragraph 1 WpHG
that the percentage holding of the voting rights of BlackRock Financial
Management, Inc. in Klöckner & Co SE fell below the threshold of 5% on
27.04.2010 and amounts to 4.87% (3,240,372 voting shares) on that day. All of
the voting rights are attributable to BlackRock Financial Management, Inc.
pursuant to Section 22 Paragraph 1 Sentence 1 no. 6 in connection with Sentence
2 WpHG.

6. We should hereby like to inform you pursuant to Section 21 Paragraph 1 WpHG
that the percentage holding of the voting rights of BlackRock Holdco 2, Inc. in
Klöckner & Co SE fell below the threshold of 5% on 27.04.2010 and amounts to
4.87% (3,240,372 voting shares) on that day. All of the voting rights are
attributable to BlackRock Holdco 2, Inc. pursuant to Section 22 Paragraph 1
Sentence 1 no. 6 in connection with Sentence 2 WpHG.

7. We should hereby like to inform you pursuant to Section 21 Paragraph 1 WpHG
that the percentage holding of the voting rights of BlackRock, Inc. in Klöckner
& Co SE fell below the threshold of 5% on 27.04.2010 and amounts to 4.87%
(3,240,372 voting shares) on that day. All of the voting rights are attributable
to BlackRock, Inc. pursuant to Section 22 Paragraph 1 Sentence 1 no. 6 in
connection with Sentence 2 WpHG.

additional (optional) statements:
contact: Dr. Jan Liersch +49 203 307 2284

issuer:   Klöckner & Co SE
          Am Silberpalais 1
          D-47057 Duisburg
phone:    +49(0)203-307-0
FAX:      +49(0)203-307-5000
mail:     info@kloeckner.de
WWW:      ¿U1http://www.kloeckner.de¿U0
sector:   Metal Goods & Engineering
ISIN:     DE000KC01000
indexes:  CDAX, Classic All Share, Prime All Share
stockmarkets: regulated dealing/prime standard: Frankfurt, free trade: Berlin,
          Hamburg, Stuttgart, Düsseldorf, München 
language: English