| 
                 
                    Closing price on 7/29/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    6.50 | 
                 
                
                    | High | 
                    6.90 | 
                 
                
                    | Low | 
                    6.40 | 
                     
                
                    | Volume | 
                    15,300 | 
                                 
                
                    | Split-adjusted Price | 
                    2.65 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SCL Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                7/29/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.50
             |           
            
                6.90
             |               
            
                6.40
             |                           
            
                6.80
             | 
            
                6.75
             |                     
            
                2.65
             |                                 
            
                15,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/26/2013
             | 
            
                +0.10 / +1.49%
             |             
            
                6.80
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.85
             |                     
            
                2.65
             |                                 
            
                11,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/25/2013
             | 
            
                +0.30 / +4.69%
             |             
            
                6.50
             |           
            
                6.70
             |               
            
                6.50
             |                           
            
                6.70
             | 
            
                6.63
             |                     
            
                2.61
             |                                 
            
                300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/24/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                6.20
             |                           
            
                6.40
             | 
            
                6.43
             |                     
            
                2.50
             |                                 
            
                11,400
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/23/2013
             | 
            
                -0.40 / -5.88%
             |             
            
                6.60
             |           
            
                6.70
             |               
            
                6.30
             |                           
            
                6.40
             | 
            
                6.42
             |                     
            
                2.50
             |                                 
            
                48,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/22/2013
             | 
            
                -0.10 / -1.45%
             |             
            
                6.90
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.89
             |                     
            
                2.65
             |                                 
            
                83,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/19/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.70
             |           
            
                6.90
             |               
            
                6.70
             |                           
            
                6.90
             | 
            
                6.80
             |                     
            
                2.69
             |                                 
            
                200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/18/2013
             | 
            
                -0.10 / -1.43%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                6.90
             |                           
            
                6.90
             | 
            
                6.98
             |                     
            
                2.69
             |                                 
            
                500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/17/2013
             | 
            
                -0.10 / -1.41%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                7.00
             |                           
            
                7.00
             | 
            
                7.01
             |                     
            
                2.73
             |                                 
            
                350,900
             |            
            
                 
             |                                       
         
    
        
            | 
                7/16/2013
             | 
            
                +0.30 / +4.41%
             |             
            
                6.70
             |           
            
                7.10
             |               
            
                6.70
             |                           
            
                7.10
             | 
            
                6.91
             |                     
            
                2.77
             |                                 
            
                104,900
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/15/2013
             | 
            
                -0.20 / -2.86%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                6.80
             |                           
            
                6.80
             | 
            
                6.99
             |                     
            
                2.65
             |                                 
            
                16,000
             |            
            
                 
             |                                       
         
    
        
            | 
                7/12/2013
             | 
            
                +0.10 / +1.45%
             |             
            
                6.90
             |           
            
                7.10
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                6.99
             |                     
            
                2.73
             |                                 
            
                14,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/11/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.80
             |           
            
                6.90
             |               
            
                6.80
             |                           
            
                6.90
             | 
            
                6.87
             |                     
            
                2.69
             |                                 
            
                1,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/10/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.70
             |           
            
                6.90
             |               
            
                6.70
             |                           
            
                6.90
             | 
            
                6.83
             |                     
            
                2.69
             |                                 
            
                300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/9/2013
             | 
            
                +0.30 / +4.55%
             |             
            
                6.70
             |           
            
                6.90
             |               
            
                6.70
             |                           
            
                6.90
             | 
            
                6.71
             |                     
            
                2.69
             |                                 
            
                3,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/8/2013
             | 
            
                -0.30 / -4.35%
             |             
            
                6.70
             |           
            
                6.70
             |               
            
                6.60
             |                           
            
                6.60
             | 
            
                6.66
             |                     
            
                2.57
             |                                 
            
                9,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/5/2013
             | 
            
                -0.10 / -1.43%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                6.90
             |                           
            
                6.90
             | 
            
                6.95
             |                     
            
                2.69
             |                                 
            
                6,300
             |            
            
                 
             |                                       
         
    
        
            | 
                7/4/2013
             | 
            
                -0.10 / -1.41%
             |             
            
                6.90
             |           
            
                7.00
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                6.92
             |                     
            
                2.73
             |                                 
            
                18,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/3/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.10
             |           
            
                7.10
             |               
            
                6.90
             |                           
            
                7.10
             | 
            
                7.05
             |                     
            
                2.77
             |                                 
            
                11,600
             |            
            
                 
             |                                       
         
    
        
            | 
                7/2/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                7.30
             |               
            
                6.90
             |                           
            
                7.10
             | 
            
                7.08
             |                     
            
                2.77
             |                                 
            
                20,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/1/2013
             | 
            
                0.00 / 0.00%
             |             
            
                6.90
             |           
            
                7.10
             |               
            
                6.90
             |                           
            
                7.10
             | 
            
                6.91
             |                     
            
                2.77
             |                                 
            
                13,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/28/2013
             | 
            
                -0.20 / -2.74%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.10
             |                           
            
                7.10
             | 
            
                7.20
             |                     
            
                2.77
             |                                 
            
                28,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/27/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.30
             |               
            
                6.70
             |                           
            
                7.30
             | 
            
                7.25
             |                     
            
                2.85
             |                                 
            
                71,900
             |            
            
                 
             |                                       
         
    
        
            | 
                6/26/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.30
             |           
            
                7.30
             |               
            
                7.10
             |                           
            
                7.30
             | 
            
                7.25
             |                     
            
                2.85
             |                                 
            
                39,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/25/2013
             | 
            
                +0.30 / +4.29%
             |             
            
                7.10
             |           
            
                7.60
             |               
            
                7.00
             |                           
            
                7.30
             | 
            
                7.21
             |                     
            
                2.85
             |                                 
            
                69,300
             |            
            
                 
             |                                       
         
    
        
            | 
                6/24/2013
             | 
            
                +0.60 / +9.38%
             |             
            
                5.80
             |           
            
                7.00
             |               
            
                5.80
             |                           
            
                7.00
             | 
            
                6.10
             |                     
            
                2.73
             |                                 
            
                116,500
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/21/2013
             | 
            
                -0.70 / -9.86%
             |             
            
                6.40
             |           
            
                6.40
             |               
            
                6.40
             |                           
            
                6.40
             | 
            
                6.40
             |                     
            
                2.50
             |                                 
            
                104,400
             |            
            
                 
             |                                       
         
    
        
            | 
                6/20/2013
             | 
            
                -0.40 / -5.33%
             |             
            
                7.20
             |           
            
                7.20
             |               
            
                6.80
             |                           
            
                7.10
             | 
            
                6.84
             |                     
            
                2.77
             |                                 
            
                135,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                6/19/2013
             | 
            
                -0.80 / -9.64%
             |             
            
                8.00
             |           
            
                8.00
             |               
            
                7.50
             |                           
            
                7.50
             | 
            
                7.57
             |                     
            
                2.92
             |                                 
            
                125,500
             |            
            
                 
             |                                       
         
    
        
            | 
                6/18/2013
             | 
            
                -0.30 / -3.49%
             |             
            
                8.80
             |           
            
                9.00
             |               
            
                8.10
             |                           
            
                8.30
             | 
            
                8.63
             |                     
            
                3.24
             |                                 
            
                85,600
             |  
            
                 
             |                                                              
             
    
         
    
    
 |