Exhibit 99.1 FOR IMMEDIATE RELEASE April 27, 2022 (All amounts in U.S. dollars. Per share information based on diluted shares outstanding unless otherwise noted.) CELESTICA ANNOUNCES FIRST QUARTER 2022 FINANCIAL RESULTS Q1 2022 Revenue and non-IFRS Adjusted EPS* exceed guidance range Full Year Revenue Outlook raised TORONTO, Canada - Celestica Inc. (TSX: CLS) (NYSE: CLS), a leader in design, manufacturing and supply chain solutions for the world's most innovative companies, today announced financial results ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ___________________________________________________________________ FORM 20-F ☐ Registration statement pursuant to Section 12(b) or (g) of the Securities Exchange Act of 1934 or ☒ Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2021 or ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to or ...

Celestica Inc. (NYSE:CLS) Q4 2021 Earnings Conference Call January 27, 2022 8:00 AM ET Company Participants Rob Mionis – President & CEO Craig Oberg – VP of IR & Corporate Development Mandeep Chawla – CFO Conference Call Participants Ruplu Bhattacharya – Bank of America Paul Treiber – RBC Capital Markets Thanos Moschopoulos – BMO Capital Markets Jim Suva – Citigroup Robert Young – Canaccord Genuity Todd Coupland – CIBC Paul Steep – Scotia Capital Operator Good morning. My name is Julianne, and I will be you ...

Exhibit 99.1 FOR IMMEDIATE RELEASE January 26, 2022 (All amounts in U.S. dollars. Per share information based on diluted shares outstanding unless otherwise noted.) CELESTICA ANNOUNCES FOURTH QUARTER 2021 FINANCIAL RESULTS Strong Q4 non-IFRS Adjusted EPS* exceeds guidance range TORONTO, Canada - Celestica Inc. (TSX: CLS) (NYSE: CLS), a leader in design, manufacturing and supply chain solutions for the world's most innovative companies, today announced financial results for the quarter ended December 31, 202 ...

Financial Data and Key Metrics Changes - Third quarter revenue was $1.47 billion, a decrease of 5% year-over-year but an increase of 3% sequentially [15][10] - Non-IFRS adjusted EPS was $0.35, up $0.03 year-over-year and up $0.05 sequentially, marking the highest EPS in nearly five years [16] - Non-IFRS operating margin was 4.2%, up 30 basis points year-over-year and sequentially, representing the highest quarterly operating margin in the company's history [11][16] Business Line Data and Key Metrics Changes - ATS segment revenue increased by 12% year-over-year and 5% sequentially, driven by recovery in industrial business and strong demand in capital equipment [17] - CCS segment revenue decreased by 14% year-over-year but increased by 2% sequentially, primarily due to Cisco disengagement [18] - HPS business revenue was $300 million, up 22% year-over-year, driven by demand strength from service providers [20] Market Data and Key Metrics Changes - Communications revenue declined by 17% year-over-year, primarily due to Cisco disengagement, but service provider demand remained strong [19] - Enterprise revenue was down 7% year-over-year but up 16% sequentially, indicating stabilization in certain areas [19] Company Strategy and Development Direction - The company aims to achieve top-line growth in Q4 2021 and anticipates closing the PCI acquisition, which is expected to enhance its portfolio [13] - Focus remains on growth and maintaining strong margins, with a long-term revenue target of at least $6.3 billion for 2022 [40] - The company is investing in expanding its capabilities, particularly in the HPS and industrial sectors, to support future growth [50][43] Management's Comments on Operating Environment and Future Outlook - Management acknowledged persistent supply chain challenges but emphasized resilience and proactive demand planning [39] - The company expects to return to top-line growth in Q4 2021, with operating margins projected to be 4.5%, the highest in its history [40] - Management remains optimistic about growth potential despite current constraints, indicating strong customer demand [39] Other Important Information - Inventory at the end of Q3 was $1.41 billion, up $201 million year-over-year, as the company prepares for future demand [25] - The company repurchased approximately 2.1 million shares for cancellation at a cost of $17.2 million during the quarter [32] - Non-IFRS free cash flow was $27 million in Q3, marking the 11th consecutive quarter of positive free cash flow [27] Q&A Session Summary Question: Inventory increase and cash conversion cycle - Management indicated that inventory is up due to strong demand for 2022, and they are working with customers on cash deposits to manage inventory levels [55] Question: Capital allocation priorities post-PCI acquisition - Management confirmed a focus on generating strong free cash flow, paying down debt, and being opportunistic with share buybacks [59] Question: Communication segment performance - Management noted good strength in networking and HPS but acknowledged that overall communication revenue was impacted by Cisco disengagement [60] Question: HPS growth expectations - Management expects strong growth in HPS, with tougher comparisons in Q4 but remains optimistic about future performance [62] Question: Enterprise trends - Management observed demand softness in compute but strength in storage, indicating a mixed outlook for the enterprise segment [68]

Exhibit 99.1 FOR IMMEDIATE RELEASE October 25, 2021 (All amounts in U.S. dollars. Per share information based on diluted shares outstanding unless otherwise noted.) CELESTICA ANNOUNCES THIRD QUARTER 2021 FINANCIAL RESULTS TORONTO, Canada - Celestica Inc. (TSX: CLS) (NYSE: CLS), a leader in design, manufacturing and supply chain solutions for the world's most innovative companies, today announced financial results for the quarter ended September 30, 2021 (Q3 2021) . † "Celestica's strong third quarter perfor ...

Celestica Inc. (NYSE:CLS) Q2 2021 Results Earnings Conference Call July 27, 2021 8:00 AM ET Company Participants Craig Oberg - VP of IR & Corporate Development Rob Mionis - President & CEO Mandeep Chawla - CFO Conference Call Participants Thanos Moschopoulos - BMO Capital Markets Ruplu Bhattacharya - Bank of America Todd Coupland - CIBC Rob Young - Canaccord Genuity Paul Steep - Scotia Capital Paul Treiber - RBC Capital Markets Jim Suva - Citigroup Daniel Chan - TD Securities Kurt Swartz - Stifel Operator G ...

Celestica Inc. (NYSE:CLS) Q1 2021 Earnings Conference Call April 29, 2021 8:00 AM ET Company Participants Craig Oberg - VP of IR & Corporate Development Rob Mionis - President & CEO Mandeep Chawla - CFO Conference Call Participants Robert Young - Canaccord Genuity Thanos Moschopoulos - BMO Capital Markets Ruplu Bhattacharya - Bank of America Merrill Lynch Paul Steep - Scotia Capital Paul Treiber - RBC Capital Markets Todd Coupland - CIBC World Markets Jim Suva - Citigroup Matt Sheerin - Stifel Daniel Chan - ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ___________________________________________________________________ FORM 20-F ☐ Registration statement pursuant to Section 12(b) or (g) of the Securities Exchange Act of 1934 or ☒ Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2020 or ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to or ...

Celestica Inc. (NYSE:CLS) Q4 2020 Earnings Conference Call January 27, 2021 8:00 AM ET Company Participants Craig Oberg - Vice President of Investor Relations & Corporate Development Rob Mionis - President & Chief Executive Officer Mandeep Chawla - Chief Financial Officer Conference Call Participants Paul Steep - Scotia Capital Todd Coupland - CIBC World Markets Robert Young - Canaccord Genuity Paul Treiber - RBC Capital Markets Thanos Moschopoulos - BMO Capital Markets Ruplu Bhattacharya - Bank of America ...