| 
                 
                    Closing price on 9/5/2013
                 
             | 
            
                                
             | 
         
         
 
    
        
                      
                
                    | Open | 
                    11.60 | 
                 
                
                    | High | 
                    12.10 | 
                 
                
                    | Low | 
                    11.50 | 
                     
                
                    | Volume | 
                    12,900 | 
                                 
                
                    | Split-adjusted Price | 
                    4.68 | 
                 
             
            
            
                
             
         | 
        
            
            
             
                            
         | 
     
 
SCL Historical Quote 
        
            
                | 
                    Date
                 | 
                
                    Change
                 |                 
                
                    Open
                 |          
                
                    High
                 |            
                
                    Low
                 |                                                 
                
                    Close
                 | 
                
                    Average
                 | 
                
                    Adjusted Close
                 |                                                 
                
                    Volume
                 |     
                
                     
                 |                                       
                             
    
        			
            | 
                9/5/2013
             | 
            
                0.00 / 0.00%
             |             
            
                11.60
             |           
            
                12.10
             |               
            
                11.50
             |                           
            
                12.00
             | 
            
                11.74
             |                     
            
                4.68
             |                                 
            
                12,900
             |            
            
                 
             |                                       
         
    
        
            | 
                9/4/2013
             | 
            
                -0.50 / -4.00%
             |             
            
                12.50
             |           
            
                12.50
             |               
            
                12.00
             |                           
            
                12.00
             | 
            
                12.09
             |                     
            
                4.68
             |                                 
            
                22,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                9/3/2013
             | 
            
                +0.10 / +0.81%
             |             
            
                12.80
             |           
            
                12.80
             |               
            
                12.20
             |                           
            
                12.50
             | 
            
                12.46
             |                     
            
                4.87
             |                                 
            
                14,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/30/2013
             | 
            
                +0.20 / +1.64%
             |             
            
                11.90
             |           
            
                12.50
             |               
            
                11.90
             |                           
            
                12.40
             | 
            
                12.28
             |                     
            
                4.83
             |                                 
            
                32,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/29/2013
             | 
            
                +0.60 / +5.17%
             |             
            
                11.50
             |           
            
                12.40
             |               
            
                11.50
             |                           
            
                12.20
             | 
            
                12.09
             |                     
            
                4.76
             |                                 
            
                16,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/28/2013
             | 
            
                -1.20 / -9.38%
             |             
            
                12.40
             |           
            
                12.70
             |               
            
                11.60
             |                           
            
                11.60
             | 
            
                11.94
             |                     
            
                4.52
             |                                 
            
                65,200
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/27/2013
             | 
            
                -0.10 / -0.78%
             |             
            
                12.50
             |           
            
                12.80
             |               
            
                12.30
             |                           
            
                12.80
             | 
            
                12.63
             |                     
            
                4.99
             |                                 
            
                49,166
             |            
            
                 
             |                                       
         
    
        
            | 
                8/26/2013
             | 
            
                0.00 / 0.00%
             |             
            
                12.30
             |           
            
                12.90
             |               
            
                12.20
             |                           
            
                12.90
             | 
            
                12.77
             |                     
            
                5.03
             |                                 
            
                89,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/23/2013
             | 
            
                +0.40 / +3.20%
             |             
            
                12.50
             |           
            
                12.90
             |               
            
                12.50
             |                           
            
                12.90
             | 
            
                12.64
             |                     
            
                5.03
             |                                 
            
                49,500
             |            
            
                 
             |                                       
         
    
        
            | 
                8/22/2013
             | 
            
                0.00 / 0.00%
             |             
            
                12.60
             |           
            
                13.00
             |               
            
                12.50
             |                           
            
                12.50
             | 
            
                12.59
             |                     
            
                4.87
             |                                 
            
                104,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/21/2013
             | 
            
                +1.10 / +9.65%
             |             
            
                11.80
             |           
            
                12.50
             |               
            
                11.60
             |                           
            
                12.50
             | 
            
                12.15
             |                     
            
                4.87
             |                                 
            
                62,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/20/2013
             | 
            
                +0.20 / +1.79%
             |             
            
                12.30
             |           
            
                12.30
             |               
            
                11.30
             |                           
            
                11.40
             | 
            
                11.89
             |                     
            
                4.44
             |                                 
            
                28,800
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/19/2013
             | 
            
                +1.00 / +9.80%
             |             
            
                10.30
             |           
            
                11.20
             |               
            
                10.30
             |                           
            
                11.20
             | 
            
                11.09
             |                     
            
                4.37
             |                                 
            
                61,600
             |            
            
                 
             |                                       
         
    
        
            | 
                8/16/2013
             | 
            
                -0.20 / -1.92%
             |             
            
                10.50
             |           
            
                11.00
             |               
            
                10.00
             |                           
            
                10.20
             | 
            
                10.40
             |                     
            
                3.98
             |                                 
            
                15,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/15/2013
             | 
            
                +0.90 / +9.47%
             |             
            
                9.70
             |           
            
                10.40
             |               
            
                9.70
             |                           
            
                10.40
             | 
            
                10.28
             |                     
            
                4.05
             |                                 
            
                149,100
             |            
            
                 
             |                                       
         
    
        
            | 
                8/14/2013
             | 
            
                +0.60 / +6.74%
             |             
            
                9.00
             |           
            
                9.50
             |               
            
                8.90
             |                           
            
                9.50
             | 
            
                9.23
             |                     
            
                3.70
             |                                 
            
                103,700
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/13/2013
             | 
            
                +0.10 / +1.14%
             |             
            
                8.90
             |           
            
                9.50
             |               
            
                8.80
             |                           
            
                8.90
             | 
            
                9.13
             |                     
            
                3.47
             |                                 
            
                74,400
             |            
            
                 
             |                                       
         
    
        
            | 
                8/12/2013
             | 
            
                +0.10 / +1.15%
             |             
            
                8.60
             |           
            
                8.80
             |               
            
                8.50
             |                           
            
                8.80
             | 
            
                8.75
             |                     
            
                3.43
             |                                 
            
                18,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/9/2013
             | 
            
                +0.40 / +4.82%
             |             
            
                8.30
             |           
            
                8.90
             |               
            
                8.30
             |                           
            
                8.70
             | 
            
                8.64
             |                     
            
                3.39
             |                                 
            
                34,300
             |            
            
                 
             |                                       
         
    
        
            | 
                8/8/2013
             | 
            
                -0.30 / -3.49%
             |             
            
                8.50
             |           
            
                8.60
             |               
            
                8.30
             |                           
            
                8.30
             | 
            
                8.46
             |                     
            
                3.24
             |                                 
            
                32,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/7/2013
             | 
            
                +0.40 / +4.88%
             |             
            
                8.50
             |           
            
                9.00
             |               
            
                8.40
             |                           
            
                8.60
             | 
            
                8.73
             |                     
            
                3.35
             |                                 
            
                57,000
             |            
            
                 
             |                                       
         
    
        
            | 
                8/6/2013
             | 
            
                +0.70 / +9.33%
             |             
            
                7.50
             |           
            
                8.20
             |               
            
                7.50
             |                           
            
                8.20
             | 
            
                7.98
             |                     
            
                3.20
             |                                 
            
                100,000
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/5/2013
             | 
            
                +0.30 / +4.17%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.20
             |                           
            
                7.50
             | 
            
                7.38
             |                     
            
                2.92
             |                                 
            
                33,700
             |            
            
                 
             |                                       
         
    
        
            | 
                8/2/2013
             | 
            
                -0.50 / -6.49%
             |             
            
                7.50
             |           
            
                7.50
             |               
            
                7.20
             |                           
            
                7.20
             | 
            
                7.48
             |                     
            
                2.81
             |                                 
            
                3,600
             |  
            
                 
             |                                                              
             
    
        			
            | 
                8/1/2013
             | 
            
                +0.70 / +10.00%
             |             
            
                7.00
             |           
            
                7.70
             |               
            
                6.90
             |                           
            
                7.70
             | 
            
                7.19
             |                     
            
                3.00
             |                                 
            
                17,200
             |            
            
                 
             |                                       
         
    
        
            | 
                7/31/2013
             | 
            
                0.00 / 0.00%
             |             
            
                7.00
             |           
            
                7.00
             |               
            
                6.90
             |                           
            
                7.00
             | 
            
                6.99
             |                     
            
                2.73
             |                                 
            
                4,300
             |  
            
                 
             |                                                              
             
    
        			
            | 
                7/30/2013
             | 
            
                +0.20 / +2.94%
             |             
            
                6.20
             |           
            
                7.00
             |               
            
                6.20
             |                           
            
                7.00
             | 
            
                6.88
             |                     
            
                2.73
             |                                 
            
                9,900
             |            
            
                 
             |                                       
         
    
        
            | 
                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
             |  
            
                 
             |                                                              
             
    
         
    
    
 |