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The carrying amount of the major classes of assets and liabilities related to Arconic Corporation classified as assets and liabilities of discontinued operations in the Consolidated Balance Sheet consisted of the following: 

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## D. Segment and Geographic Area Information 

Howmet is a global leader in lightweight metals engineering and manufacturing. Howmet’s innovative, multi-material products, which include nickel, titanium, aluminum, and cobalt, are used worldwide in the aerospace (commercial and defense), commercial transportation, and industrial and other end markets. Segment performance under Howmet’s management reporting system is evaluated based on a number of factors; however, the primary measure of performance is Segment operating profit. Howmet’s definition of Segment operating profit is Operating income excluding Special items. Special items include Restructuring and Other charges and Impairment of Goodwill. Segment operating profit may not be comparable to similarly titled measures of other companies. Differences between segment totals and consolidated Howmet are in Corporate. 

Following the Arconic Inc. Separation Transaction, Howmet’s operations consist of four worldwide reportable segments as follows: 

## Engine Products 

Engine Products produces investment castings, including airfoils, and seamless rolled rings primarily for aircraft engines and industrial gas turbines. Engine Products produces rotating parts as well as structural parts. 

## Fastening Systems 

Fastening Systems produces aerospace fastening systems, as well as commercial transportation fasteners. The business’s high-tech, multi-material fastening systems are found nose to tail on aircraft and aero engines. The business’s products are also critical components of automobiles, commercial transportation vehicles, and construction and industrial equipment. 

