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        Signature
      
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        Jane R. Grimm, Attorney-in-fact, for Dr. R. Gerald Turner
      
      
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        Stock symbol
      
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        KRO
      
      
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        Transactions as of
      
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        May 18, 2022
      
      
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        Transactions value $
      
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        $0
      
      
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        Form type
      
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        4
      
      
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        Date filed
      
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        5/19/2022, 02:07 PM
      
 
     
   
 
  
    Transactions Table
  
  
    
      
        
          | Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes | 
      
      
          
            | transaction | KRO | Common Stock $0.01 par value | Award |  | +1.2K | +4.99% |  | 25.2K | May 18, 2022 | Direct | F1 | 
      
    
   
  
    * An asterisk sign (*) next to the price indicates that the price is likely invalid.
  
  
    Explanation of Responses:
  
  
  
    Remarks:
  
  Exhibit 24 - Power of Attorney