2015                               2016               
       ---------------------------------- ----------------------------------
         Q1     Q2     Q3     Q4     FY     Q1     Q2     Q3     Q4     FY  
       ------ ------ ------ ------ ------ ------ ------ ------ ------ ------
Communicati-                                                                      
 ons      40%    40%    41%    38%    40%    38%    41%    43%    44%    42%
Consum-                                                                      
 er        3%     3%     3%     3%     3%     3%     3%     2%     2%     2%
Divers-                                                                      
 ified    28%    28%    30%    30%    29%    34%    30%    30%    27%    30%
Servers   11%    10%     8%    10%    10%     9%     9%     7%     8%     8%
Storage   18%    19%    18%    19%    18%    16%    17%    18%    19%    18%
Revenue                                                                       
(in billi-                                                                      
 ons)  $1.30  $1.42  $1.41  $1.51  $5.64  $1.35  $1.49  $1.55  $1.62  $6.02 

• i. Our diversified end market in 2016 was comprised of aerospace and defense, industrial, healthcare, energy, and semiconductor equipment. Commencing with the quarter ending March 31, 2017, we will combine our servers and storage end markets into a single "Enterprise" end market and add our consumer business to our diversified end market for reporting purposes.

Decision to Exit Solar Panel Manufacturing Business and Related RestructuringPreviously disclosed market instability and global oversupply of solar panels continued to negatively impact our solar panel manufacturing business, including the pricing and demand for solar panels in the fourth quarter of 2016. Since these negative factors are expected to be prolonged, and we no longer expect to generate reasonable returns, we made a decision in the quarter to exit the manufacturing of such panels. In connection therewith, we recorded restructuring charges totaling approximately $21 million in the fourth quarter of 2016 related to the closure of our solar panel manufacturing operations at our two locations, including a $19 million impairment charge to write down the carrying value of our solar manufacturing equipment to recoverable amounts.The turbulence in our solar panel business has negatively impacted our overall energy market offering, and therefore, our diversified end market. However, since our energy market offering is diverse, and includes the manufacture of inverters, energy storage products, smart meters and other electronic componentry, we remain optimistic regarding the outlook of our energy products business, as we continue to win new programs with renewable energy customers.Board Member ChangesGerald W. Schwartz, Chairman of the Board, President and Chief Executive Officer of Onex Corporation (Onex), retired from Celestica's Board of Directors effective December 31, 2016 in accordance with the Board's retirement policy. Following Mr. Schwartz's retirement, Tawfiq Popatia was appointed to Celestica's Board of Directors effective January 1, 2017. As a Managing Director of Onex, Mr. Popatia leads its efforts in automation, aerospace and other transportation-focused industries.Thomas S. Gross was appointed to Celestica's Board of Directors effective November 1, 2016. Mr. Gross recently retired as the Vice Chairman and Chief Operating Officer of the Electrical Sector of Eaton, an NYSE-traded power management company. Mr. Gross' career at Eaton spanned 13 years and he has also held senior leadership positions in companies such as Danaher Corporation and Xycom Automation.First Quarter 2017 OutlookFor the quarter ending March 31, 2017, we anticipate revenue to be in the range of $1.4 billion to $1.5 billion, non-IFRS operating margin to be 3.5% at the mid-point of our expectations, and non-IFRS adjusted earnings per share to be in the range of $0.24 to $0.30. We expect a negative $0.11 to $0.17 per share (pre-tax) aggregate impact on net earnings on an IFRS basis for employee stock-based compensation expense, amortization of intangible assets (excluding computer software) and restructuring charges. We cannot predict changes in currency exchange rates, the impact of such changes on our operating results, or the degree to which we will be able to manage such impacts.Fourth Quarter 2016 WebcastManagement will host its fourth quarter 2016 results conference call today at 4:30 p.m. Eastern Daylight Time. The webcast can be accessed at www.celestica.com.Non-IFRS Supplementary InformationIn addition to disclosing detailed operating results in accordance with IFRS, Celestica provides supplementary non-IFRS measures to consider in evaluating the company's operating performance. Management uses adjusted net earnings and other non-IFRS measures to assess operating performance and the effective use and allocation of resources; to provide more meaningful period-to-period comparisons of operating results; to enhance investors' understanding of the core operating results of Celestica's business; and to set management incentive targets. We believe investors use both IFRS and non-IFRS measures to assess management's past, current and future decisions associated with our priorities and our allocation of capital, as well as to analyze how our business operates in, or responds to, swings in economic cycles or to other events that impact our core operations. See Schedule 1 - Supplementary Non-IFRS Measures for, among other items, non-IFRS measures provided herein, non-IFRS definitions, and a reconciliation of non-IFRS to IFRS measures.About CelesticaCelestica is dedicated to delivering end-to-end product lifecycle solutions to drive our customers' success. Through our simplified global operations network and information technology platform, we are solid partners who deliver informed, flexible solutions that enable our customers to succeed in the markets they serve. Committed to providing a truly differentiated customer experience, our agile and adaptive employees share a proud history of demonstrated expertise and creativity that provides our customers with the ability to overcome complex challenges. For further information about Celestica, visit our website at www.celestica.com. Our securities filings can also be accessed at www.sedar.com and www.sec.gov.Cautionary Note Regarding Forward-looking StatementsThis news release contains forward-looking statements, including, without limitation, those related to our future growth; trends in the electronics manufacturing services (EMS) industry; our anticipated financial and/or operational results, including our quarterly revenue, non-IFRS operating margin and earnings guidance; the impact of acquisitions and program wins or losses on our financial results and working capital requirements; anticipated expenses, restructuring actions and charges, and amortization of intangible assets (excluding computer software); the anticipated repatriation of undistributed earnings from foreign subsidiaries; the impact of tax and litigation outcomes; our cash flows, financial targets and priorities; changes in our mix of revenue by end market; our ability to diversify and grow our customer base and develop new capabilities; the effect of the pace of technological changes, customer outsourcing and program transfers, and the global economic environment on customer demand; the possibility of future impairments of property, plant and equipment, goodwill or intangible assets; the timing and extent of the expected recovery of cash advances made to the Solar Supplier (defined below); the anticipated termination and settlement of our solar equipment leases; changes in the composition of our end markets commencing with the period ending March 31, 2017; and the impact of the acquisition of the assets of Karel Manufacturing. Such forward-looking statements may, without limitation, be preceded by, followed by, or include words such as "believes", "expects", "anticipates", "estimates", "intends", "plans", "continues", "project", "potential", "possible", "contemplate", "seek", or similar expressions, or may employ such future or conditional verbs as "may", "might", "will", "could", "should" or "would", or may otherwise be indicated as forward-looking statements by grammatical construction, phrasing or context. For those statements, we claim the protection of the safe harbor for forward-looking statements contained in the U.S. Private Securities Litigation Reform Act of 1995, where applicable, and applicable Canadian securities laws.Forward-looking statements are provided for the purpose of assisting readers in understanding management's current expectations and plans relating to the future. Readers are cautioned that such information may not be appropriate for other purposes. Forward-looking statements are not guarantees of future performance and are subject to risks that could cause actual results to differ materially from conclusions, forecasts or projections expressed in such statements, including, among others, risks related to: our customers' ability to compete and succeed in the marketplace with the services we provide and the products we manufacture; price and other competitive factors generally affecting the EMS industry; managing our operations and our working capital performance during uncertain market and economic conditions; responding to changes in demand, rapidly evolving and changing technologies, and changes in our customers' business and outsourcing strategies, including the insourcing of programs; customer concentration and the challenges of diversifying our customer base and replacing revenue from completed or lost programs, or customer disengagements; changing commodity, material and component costs, as well as labor costs and conditions; disruptions to our operations, or those of our customers, component suppliers and/or logistics partners, including as a result of global or local events outside our control, including as a result of the June 2016 referendum by British voters advising for the exit of the United Kingdom from the European Union (Brexit) or significant developments stemming from the recent U.S. presidential election; retaining or expanding our business due to execution issues relating to the ramping of new or existing programs or new offerings; the incurrence of future impairment charges; recruiting or retaining skilled personnel; transitions associated with our Global Business Services (GBS) initiative, our Organizational Design (OD) initiative, and/or other changes to our company's operating model; current or future litigation and/or governmental actions; the operating performance and financial results of our semiconductor business; the timing and extent of recoveries from the sale of inventory and manufacturing equipment relating to our exit from the solar panel manufacturing business, and our ability to recover amounts outstanding from the Solar Supplier; delays in the delivery and availability of components, services and materials, including from suppliers upon which we are dependent for certain components; non-performance by counterparties; our financial exposure to foreign currency volatility, including stock market volatility and currency exchange rate fluctuations resulting from the Brexit or the recent U.S. presidential election; our dependence on industries affected by rapid technological change; the variability of revenue and operating results; managing our global operations and supply chain; increasing income taxes, tax audits, and challenges of defending our tax positions, and obtaining, renewing or meeting the conditions of tax incentives and credits; completing restructuring actions, including achieving the anticipated benefits therefrom, and integrating any acquisitions; defects or deficiencies in our products, services or designs; computer viruses, malware, hacking attempts or outages that may disrupt our operations; any failure to adequately protect our intellectual property or the intellectual property of others; compliance with applicable laws, regulations and social responsibility initiatives; our having sufficient financial resources and working capital to fund currently anticipated financial obligations and to pursue desirable business opportunities; the potential that conditions to closing the sale of our real property in Toronto and related transactions (collectively, the "Toronto Real Property Transactions") may not be satisfied on a timely basis or at all; and if the Toronto Real Property Transactions are completed, our ability to secure on commercially acceptable terms an alternate site for our existing Toronto manufacturing operations, and the costs, timing and/or execution of such relocation proving to be other than anticipated. The foregoing and other material risks and uncertainties are discussed in our public filings at www.sedar.com and www.sec.gov, including in our MD&A, our most recent Annual Report on Form 20-F filed with, and subsequent reports on Form 6-K furnished to, the U.S. Securities and Exchange Commission, and our Annual Information Form filed with the Canadian Securities Administrators.Our revenue, earnings and other financial guidance, as contained in this press release, is based on various assumptions, many of which involve factors that are beyond our control. Our material assumptions include those related to the following: production schedules from our customers, which generally range from 30 days to 90 days and can fluctuate significantly in terms of volume and mix of products or services; the timing and execution of, and investments associated with, ramping new business; the success in the marketplace of our customers' products; the stability of general economic and market conditions, currency exchange rates, and interest rates; our pricing, the competitive environment and contract terms and conditions; supplier performance, pricing and terms; compliance by third parties with their contractual obligations, the accuracy of their representations and warranties, and the performance of their covenants; the costs and availability of components, materials, services, plant and capital equipment, labor, energy and transportation; operational and financial matters including the extent, timing and costs of replacing revenue from completed or lost programs, or customer disengagements; technological developments; overall demand improvement in the semiconductor industry; revenue growth and improved financial results in our semiconductor business; the timing and extent of recoveries from the sale of inventory and manufacturing equipment related to our exit from the solar panel manufacturing business and our ability to recover amounts outstanding from the Solar Supplier; the timing, execution and effect of restructuring actions; our having sufficient financial resources and working capital to fund our currently anticipated financial obligations and to pursue desirable business opportunities; and our ability to diversify our customer base and develop new capabilities. While management believes these assumptions to be reasonable under the current circumstances, they may prove to be inaccurate. Forward-looking statements speak only as of the date on which they are made, and we disclaim any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by applicable law.All forward-looking statements attributable to us are expressly qualified by these cautionary statements.Schedule 1Supplementary Non-IFRS Measures