| /S/ Harvey L. Karp | /S/ Gregory L. Christopher | 
| Harvey L. Karp | Gregory L. Christopher | 
| Chairman of the Board | Chief Executive Officer | 
| 
                                                                                                   For
      the Quarter Ended 
                                                                                                 | 
                                                                                                
                                                                                                   For
      the Six Months Ended 
                                                                                                 | 
                                                                                                |||||||||||||||
| 
                                                                                                   June
      27, 2009 
                                                                                                 | 
                                                                                                
                                                                                                   June
      28, 2008 
                                                                                                 | 
                                                                                                
                                                                                                   June
      27, 2009 
                                                                                                 | 
                                                                                                
                                                                                                   June
      28, 2008 
                                                                                                 | 
                                                                                                |||||||||||||
| 
                                                                                                   (In
      thousands, except per share data) 
                                                                                                 | 
                                                                                                ||||||||||||||||
| 
                                                                                                   Net
      sales 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   367,800 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   753,471 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   694,358 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   1,457,579 
                                                                                                 | 
                                                                                                ||||||||
| 
                                                                                                   Cost
      of goods sold 
                                                                                                 | 
                                                                                                
                                                                                                   313,353 
                                                                                                 | 
                                                                                                
                                                                                                   661,209 
                                                                                                 | 
                                                                                                
                                                                                                   600,736 
                                                                                                 | 
                                                                                                
                                                                                                   1,273,006 
                                                                                                 | 
                                                                                                ||||||||||||
| 
                                                                                                   Depreciation
      and amortization 
                                                                                                 | 
                                                                                                
                                                                                                   10,355 
                                                                                                 | 
                                                                                                
                                                                                                   11,004 
                                                                                                 | 
                                                                                                
                                                                                                   20,835 
                                                                                                 | 
                                                                                                
                                                                                                   21,988 
                                                                                                 | 
                                                                                                ||||||||||||
| 
                                                                                                   Selling,
      general, and administrative expense 
                                                                                                 | 
                                                                                                
                                                                                                   30,316 
                                                                                                 | 
                                                                                                
                                                                                                   34,618 
                                                                                                 | 
                                                                                                
                                                                                                   61,474 
                                                                                                 | 
                                                                                                
                                                                                                   72,909 
                                                                                                 | 
                                                                                                ||||||||||||
| 
                                                                                                   Operating
      income 
                                                                                                 | 
                                                                                                
                                                                                                   13,776 
                                                                                                 | 
                                                                                                
                                                                                                   46,640 
                                                                                                 | 
                                                                                                
                                                                                                   11,313 
                                                                                                 | 
                                                                                                
                                                                                                   89,676 
                                                                                                 | 
                                                                                                ||||||||||||
| 
                                                                                                   Interest
      expense 
                                                                                                 | 
                                                                                                
                                                                                                   (2,482 
                                                                                                 | 
                                                                                                
                                                                                                   ) 
                                                                                                 | 
                                                                                                
                                                                                                   (5,238 
                                                                                                 | 
                                                                                                
                                                                                                   ) 
                                                                                                 | 
                                                                                                
                                                                                                   (5,118 
                                                                                                 | 
                                                                                                
                                                                                                   ) 
                                                                                                 | 
                                                                                                
                                                                                                   (10,705 
                                                                                                 | 
                                                                                                
                                                                                                   ) 
                                                                                                 | 
                                                                                              ||||||||
| 
                                                                                                   Other
      income, net 
                                                                                                 | 
                                                                                                
                                                                                                   385 
                                                                                                 | 
                                                                                                
                                                                                                   1,961 
                                                                                                 | 
                                                                                                
                                                                                                   1,012 
                                                                                                 | 
                                                                                                
                                                                                                   6,530 
                                                                                                 | 
                                                                                                ||||||||||||
| 
                                                                                                   Income
      before income taxes 
                                                                                                 | 
                                                                                                
                                                                                                   11,679 
                                                                                                 | 
                                                                                                
                                                                                                   43,363 
                                                                                                 | 
                                                                                                
                                                                                                   7,207 
                                                                                                 | 
                                                                                                
                                                                                                   85,501 
                                                                                                 | 
                                                                                                ||||||||||||
| 
                                                                                                   Income
      tax expense 
                                                                                                 | 
                                                                                                
                                                                                                   (5,512 
                                                                                                 | 
                                                                                                
                                                                                                   ) 
                                                                                                 | 
                                                                                                
                                                                                                   (15,339 
                                                                                                 | 
                                                                                                
                                                                                                   ) 
                                                                                                 | 
                                                                                                
                                                                                                   (3,550 
                                                                                                 | 
                                                                                                
                                                                                                   ) 
                                                                                                 | 
                                                                                                
                                                                                                   (29,570 
                                                                                                 | 
                                                                                                
                                                                                                   ) 
                                                                                                 | 
                                                                                              ||||||||
| 
                                                                                                   Consolidated
      net income 
                                                                                                 | 
                                                                                                
                                                                                                   6,167 
                                                                                                 | 
                                                                                                
                                                                                                   28,024 
                                                                                                 | 
                                                                                                
                                                                                                   3,657 
                                                                                                 | 
                                                                                                
                                                                                                   55,931 
                                                                                                 | 
                                                                                                ||||||||||||
| 
                                                                                                   Less:
      net income attributable to noncontrolling interest 
                                                                                                 | 
                                                                                                
                                                                                                   (139 
                                                                                                 | 
                                                                                                
                                                                                                   ) 
                                                                                                 | 
                                                                                                
                                                                                                   (1,010 
                                                                                                 | 
                                                                                                
                                                                                                   ) 
                                                                                                 | 
                                                                                                
                                                                                                   (121 
                                                                                                 | 
                                                                                                
                                                                                                   ) 
                                                                                                 | 
                                                                                                
                                                                                                   (1,562 
                                                                                                 | 
                                                                                                
                                                                                                   ) 
                                                                                                 | 
                                                                                              ||||||||
| 
                                                                                                   Net
      income attributable to Mueller Industries, Inc. 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   6,028 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   27,014 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   3,536 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   54,369 
                                                                                                 | 
                                                                                                ||||||||
| 
                                                                                                   Weighted
      average shares for basic earnings per share 
                                                                                                 | 
                                                                                                
                                                                                                   37,143 
                                                                                                 | 
                                                                                                
                                                                                                   37,119 
                                                                                                 | 
                                                                                                
                                                                                                   37,143 
                                                                                                 | 
                                                                                                
                                                                                                   37,108 
                                                                                                 | 
                                                                                                ||||||||||||
| 
                                                                                                   Effect
      of dilutive stock options 
                                                                                                 | 
                                                                                                
                                                                                                   120 
                                                                                                 | 
                                                                                                
                                                                                                   340 
                                                                                                 | 
                                                                                                
                                                                                                   97 
                                                                                                 | 
                                                                                                
                                                                                                   269 
                                                                                                 | 
                                                                                                ||||||||||||
| 
                                                                                                   Adjusted
      weighted average shares for diluted earnings per share 
                                                                                                 | 
                                                                                                
                                                                                                   37,263 
                                                                                                 | 
                                                                                                
                                                                                                   37,459 
                                                                                                 | 
                                                                                                
                                                                                                   37,240 
                                                                                                 | 
                                                                                                
                                                                                                   37,377 
                                                                                                 | 
                                                                                                ||||||||||||
| 
                                                                                                   Basic
      earnings per share 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   0.16 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   0.73 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   0.10 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   1.47 
                                                                                                 | 
                                                                                                ||||||||
| 
                                                                                                   Diluted
      earnings per share 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   0.16 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   0.72 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   0.09 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   1.45 
                                                                                                 | 
                                                                                                ||||||||
| 
                                                                                                   Dividends
      per share 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   0.10 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   0.10 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   0.20 
                                                                                                 | 
                                                                                                
                                                                                                   $ 
                                                                                                 | 
                                                                                                
                                                                                                   0.20 
                                                                                                 | 
                                                                                                ||||||||
| 
                                                           MUELLER
      INDUSTRIES, INC. 
                                                         | 
                                                        |||||||||||||||||
| 
                                                           CONDENSED
      CONSOLIDATED BALANCE SHEETS 
                                                         | 
                                                        |||||||||||||||||
| 
                                                           (Unaudited) 
                                                         | 
                                                        |||||||||||||||||
| 
                                                           June
      27, 
                                                         | 
                                                        
                                                           December
      27, 
                                                         | 
                                                        
                                                           June
      27, 
                                                         | 
                                                        
                                                           December
      27, 
                                                         | 
                                                        ||||||||||||||
| 
                                                           2009 
                                                         | 
                                                        
                                                           2008 
                                                         | 
                                                        
                                                           2009 
                                                         | 
                                                        
                                                           2008 
                                                         | 
                                                        ||||||||||||||
| 
                                                           (In
      thousands) 
                                                         | 
                                                        
                                                           (In
      thousands) 
                                                         | 
                                                        ||||||||||||||||
| 
                                                           ASSETS 
                                                         | 
                                                        
                                                           LIABILITIES
      AND STOCKHOLDERS' EQUITY 
                                                         | 
                                                        ||||||||||||||||
| 
                                                           Cash
      and cash equivalents 
                                                         | 
                                                        
                                                           $ 
                                                         | 
                                                        333,959 | 
                                                           $ 
                                                         | 
                                                        278,860 | 
                                                           Current
      portion of long-term debt 
                                                         | 
                                                        
                                                           $ 
                                                         | 
                                                        9,629 | 
                                                           $ 
                                                         | 
                                                        24,184 | ||||||||
| 
                                                           Accounts
      receivable, net 
                                                         | 
                                                        207,238 | 219,035 | 
                                                           Accounts
      payable 
                                                         | 
                                                        59,871 | 63,732 | ||||||||||||
| 
                                                           Inventories 
                                                         | 
                                                        169,118 | 210,609 | 
                                                           Other
      current liabilities 
                                                         | 
                                                        91,678 | 113,668 | ||||||||||||
| 
                                                           Other
      current assets 
                                                         | 
                                                        32,033 | 46,322 | |||||||||||||||
| 
                                                           Total
      current assets 
                                                         | 
                                                        742,348 | 754,826 | 
                                                               Total
      current liabilities 
                                                         | 
                                                        161,178 | 201,584 | ||||||||||||
| 
                                                           Long-term
      debt 
                                                         | 
                                                        158,226 | 158,726 | |||||||||||||||
| 
                                                           Pension
      and postretirement liabilities 
                                                         | 
                                                        39,688 | 38,452 | |||||||||||||||
| 
                                                           | 
                                                        
                                                           Environmental
      reserves 
                                                         | 
                                                        23,352 | 23,248 | ||||||||||||||
| Property, plant, and equipment, net | 268,017 | 276,927 | Deferred income taxes | 33,496 | 33,940 | ||||||||||||
| 
                                                           Other
      assets 
                                                         | 
                                                        152,131 | 151,160 | 
                                                           Other
      noncurrent liabilities 
                                                         | 
                                                        1,417 | 1,698 | ||||||||||||
| 
                                                               Total
      liabilities 
                                                         | 
                                                        417,357 | 457,648 | |||||||||||||||
| 
                                                           Stockholders'
      equity 
                                                         | 
                                                        719,933 | 700,683 | |||||||||||||||
| 
                                                           Noncontrolling
      interest 
                                                         | 
                                                        25,206 | 24,582 | |||||||||||||||
| 
                                                               Total
      equity 
                                                         | 
                                                        745,139 | 725,265 | |||||||||||||||
| 
                                                           $ 
                                                         | 
                                                        1,162,496 | 
                                                           $ 
                                                         | 
                                                        1,182,913 | 
                                                           $ 
                                                         | 
                                                        1,162,496 | 
                                                           $ 
                                                         | 
                                                        1,182,913 | ||||||||||