MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS  Note 20. Non-Operating Income and Deductions  Note 21. Segment and Related Information F-28  2012  Millions of Dollars  Specialty  Minerals   Refractories Total  Net sales...................................................................................... $  653.4  $  343.4 $ 996.8  Income from operations.............................................................. 87.7  32.6 120.3  Depreciation, depletion and amortization ................................... 40.8  10.3  51.1  Segment assets............................................................................ 617.0  355.5 972.5 Capital expenditures ................................................................... 41.0  8.0 49.0 2013  Millions of Dollars  Specialty  Minerals   Refractories Total  Net sales...................................................................................... $  669.8  $  348.4 $ 1,018.2  Income from operations.............................................................. 98.4  35.9  134.3  Depreciation, depletion and amortization ................................... 38.6  8.7 47.3  Segment assets............................................................................ 605.6  378.1 983.7  Capital expenditures ................................................................... 33.6  8.3 41.9  Millions of Dollars  Year Ended December 31,  2013 2012 2011  Interest income ...............................................................$  3.0  $  3.2  $  3.9  Interest expense ..............................................................  (3.3 ) (3.2)  (3.3)  Foreign exchange losses.................................................  (2.1 ) (1.4)  (1.2)  Foreign currency translation loss upon deconsolidation  of a foreign entity ...........................................................  -- --  (1.4)  Other deductions ...........................................................  (0.8) (1.6)  (0.6)  Non-operating deductions, net.............................................$  (3.2) $  (3.0)  $  (2.6)  During the third quarter to 2011, the Company recognized currency translation losses of $1.4 million upon the sale of a  50% interest in and deconsolidation of its previously controlled joint venture in Korea.  Operating segments are defined as components of an enterprise about which separate financial information is available  that is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and in assessing  performance. The Company's operating segments are strategic business units that offer different products and serve different  markets. They are managed separately and require different technology and marketing strategies.  The Company has two reportable segments: Specialty Minerals and Refractories. The Specialty Minerals segment  produces and sells precipitated calcium carbonate and lime, and mines, processes and sells the natural mineral products  limestone and talc. This segment's products are used principally in the paper, building materials, paints and coatings, glass,  ceramic, polymers, food, automotive, and pharmaceutical industries. The Refractories segment produces and markets  monolithic and shaped refractory products and systems used primarily by the steel, cement and glass industries as well as  metallurgical products used primarily in the steel industry.  The accounting policies of the segments are the same as those described in the summary of significant accounting policies.  The Company evaluates performance based on the operating income of the respective business units. Depreciation expense  related to corporate assets is allocated to the business segments and is included in their income from operations. However,  such corporate depreciable assets are not included in the segment assets. Intersegment sales and transfers are not significant.  Segment information for the years ended December 31, 2013, 2012 and 2011 was as follows: 