Table of Contents AZZ INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Energy Segment Metal Coatings Segment AZZ's Energy segment is a provider of specialized products and services designed to support industrial, nuclear and electrical applications. Within this segment, the contract is governed by a customer purchase order and an executed product or services agreement. The contract generally specifies the delivery of what constitutes a single performance obligation consisting of either custom built products, custom services, or off-the-shelf products. When the Company does enter into an arrangement with multiple performance obligations, the transaction price is allocated to each performance obligation based on the relative standalone selling prices of the goods or services being provided to the customer and revenue is recognized upon the satisfaction of each performance obligation. The Company combines contracts for revenue recognition purposes that are executed with the same customer within a short timeframe from each other and that purport to be for a single commercial objective. For custom built products, the Company recognizes revenues over time provided that the goods do not have an alternative use to the Company and the Company has an unconditional right to payment for work completed to date plus a reasonable margin. For custom services, which consist of specialized welding and other professional services, the Company recognizes revenues over time as the services are rendered due to the fact that the services enhance a customer owned asset. For off-the-shelf products, which consist of tubing and lighting products, the Company recognizes revenue at a point-in-time upon the transfer of the goods to the customer. For revenues recognized over time, the Company generally uses the cost-to-cost method of revenue recognition. Under this approach, the extent of progress towards completion is measured based on the ratio of costs incurred to date versus the total estimated costs upon completion of the project. This requires the Company to estimate the total contract revenues, project costs and margin, which can involve significant management judgment. As a significant change in one or more of these estimates could affect the profitability of the Company’s contracts, management reviews and updates its contract related estimates regularly. The Company recognizes adjustments in estimated margin on contracts under a cumulative catch-up basis and subsequent revenues are recognized using the adjusted estimate. If the estimate of contract margin indicates an anticipated loss on the contract, the Company recognizes the total estimated loss in the period it is identified. Due to the custom nature of the goods and services provided, contracts within the Energy segment are often modified to account for changes in contract specifications and requirements. A contract modification exists when the modification either creates new, or changes the existing, enforceable rights and obligations in the contract. For the Company, most contract modifications are related to goods or services that are not distinct from those in the original contract due to the significant interrelationship or interdependencies between the deliverables. Such modifications are accounted for as if they were part of the original contract. As a result, the transaction price and the measure of progress for the performance obligation to which it relates, is recognized as an adjustment to revenue on a cumulative catch-up basis. In addition to fixed consideration, the Company’s contracts within its Energy segment can include variable consideration, including claims, incentive fees, liquidated damages or other penalties. The Company recognizes revenue for variable consideration when it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur. The Company estimates the amount of revenue to be recognized on variable consideration using the expected value or the most likely amount method, whichever is expected to better predict the amount.  AZZ’s Metal Coatings segment is a provider of hot dip galvanizing, powder coating and other metal coating applications to the steel fabrication industry. Within this segment, the contract is governed by a customer purchase order or work order. The contract generally specifies the delivery of what constitutes a single performance obligation consisting of metal coating services. The Company combines contracts for revenue recognition purposes that are executed with the same customer within a short timeframe from each other and that purport to be for a single commercial objective. The Company recognizes revenue over time as the metal coating is applied to the customer provided material as the process enhances a customer controlled asset. Contract modifications are rare within this segment and most contracts are on a fixed price basis with no variable consideration. 38