Exhibit 99 MAYVILLE ENGINEERING COMPANY ANNOUNCES FIRST QUARTER 2024 RESULTS MILWAUKEE, Wis., May 7, 2024 – Mayville Engineering Company (NYSE: MEC) (the “Company” or “MEC”), a leading value-added provider of design, prototyping and manufacturing solutions serving diverse end markets, today announced results for the three-months ended March 31, 2024. FIRST QUARTER 2024 RESULTS (All comparisons versus the prior-year period) ● Net sales of $161.3 million, or +13.1% y/y, including organic growth of 3.3% y/y ● ...

供应链影响 - 公司在2023年受到供应链限制的影响，导致业绩下滑[2] 成本压力 - 2023年通货膨胀、物料成本上涨和劳动力成本增加对公司的业绩和现金流产生负面影响[3] 客户需求 - 公司的净销售主要来自重型和中型商用车辆、建筑和工程设备、农业、军事和其他终端市场，受到客户行业发展的影响[3] 销售不确定性 - 公司未来的销售将继续依赖客户的成功，如果经济状况和对客户产品的需求恶化，可能会对业务、运营结果和财务状况产生重大不利影响[1] - 大部分客户不会承诺长期生产计划，这使得公司难以准确安排生产和实现最大效率[2] - 销售量和销售时间的波动使得公司难以安排生产和优化生产能力利用率[3] - 公司可能无法实现获得的业务所代表的净销售，这可能对业务、财务状况、运营结果和现金流产生重大不利影响[4] 竞争压力 - 公司面临来自竞争对手的竞争，如果无法成功竞争，可能会对业务、财务状况、运营结果或前景产生重大不利影响[2] 客户依赖 - 公司依赖有限数量的大客户进行当前和未来的净销售，失去任何一个大客户或这些客户的市场份额可能会对业务、财务状况、运营结果和现金流产生重大不利影响[3] 人才挑战 - 公司依赖关键高管、经理和熟练人员，可能难以留住和招聘合格员工，竞争激烈的劳动力市场也可能影响公司的招聘和员工保留能力[1] 市场变化 - 能源和公用事业价格的波动可能对公司的销售和盈利能力产生负面影响[3] 风险管理 - 公司的市场风险主要来自客户预测、利率和商品价格波动，为降低这些风险，公司采用金融工具和其他主动管理技术[7] - 公司面临的利率风险主要来自用于资助运营和收购的短期和长期债务，目前使用SOFR基础的浮动利率借款，100个基点的利率上升将导致额外140万美元的利息支出[8]

4Q23 Results Presentation SAFE HARBOR STATEMENT Safe Harbor Statement under the U.S. Private Securities Litigation Reform Act of 1995: This presentation contains statements that are forward-looking in nature which express the beliefs and expectations of management including statements regarding the Company’s expected results of operations or liquidity; statements concerning projections, predictions, expectations, estimates or forecasts as to our business, financial and operational results and future economi ...

Start Time: 10:00 End Time: 11:01 May 1, 0000 ET Q4 2023 Earnings Conference Call March 06, 2024, 10:00 AM ET Company Participants Jag Reddy - President and CEO Todd Butz - CFO Stefan Neely - Vallum Advisors, IR Conference Call Participants Tim Moore - EF Hutton Ted Jackson - Northland Securities Larry De Mari - William Blair Operator Hello, everyone, and welcome to the Mayville Engineering Fourth Quarter and Full Year 2023 Result Conference Call. My name is Nadia, and I'll be coordinating the call today. [ ...

Exhibit 99 MAYVILLE ENGINEERING COMPANY ANNOUNCES FOURTH QUARTER AND FULL-YEAR 2023 RESULTS MILWAUKEE, Wis., March 5, 2024 – Mayville Engineering Company (NYSE: MEC) (the “Company” or “MEC”), a leading value-added provider of design, prototyping and manufacturing solutions serving diverse end markets, today announced results for the three and twelve-months ended December 31, 2023. FOURTH QUARTER 2023 RESULTS (All comparisons versus the prior-year period) ● Net sales of $148.6 million, or +15.6% y/y, includi ...

Mayville Engineering Company, Inc. (NYSE:MEC) Q3 2023 Earnings Conference Call November 1, 2023 10:00 AM ET Company Participants Stefan Neely - IR Jagadeesh Reddy - President, CEO & Director Todd Butz - CFO, Secretary & Treasurer Conference Call Participants Vladimir Bystricky - Citigroup Mircea Dobre - Robert W. Baird & Co. Edward Jackson - Northland Capital Markets Timothy Moore - EF Hutton Larry De Maria - William Blair & Company Operator Thank you all for joining. I'd like to welcome you all to the Mayv ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38894 Mayville Engineering Company, Inc. (Exact Name of Registrant as Specified in its Charter) Wisconsin 3 ...

2Q23 Results Presentation August 2, 2023 SAFE HARBOR STATEMENT Safe Harbor Statement under the U.S. Private Securities Litigation Reform Act of 1995: This presentation contains statements that are forward-looking in nature which express the beliefs and expectations of management including statements regarding the Company’s expected results of operations or liquidity; statements concerning projections, predictions, expectations, estimates or forecasts as to our business, financial and operational results and ...

Mayville Engineering Company, Inc. (NYSE:MEC) Q2 2023 Earnings Conference Call August 2, 2023 10:00 AM ET Company Participants Stefan Neely - Investor Relations Jag Reddy - President and Chief Executive Officer Todd Butz - Chief Financial Officer Conference Call Participants Joe Grabowski - Baird Vlad Bystricky - Citi Ted Jackson - Northland Securities Tim Moore - EF Hutton Operator Hello and welcome to the Mayville Engineering Company???s Second Quarter 2023 Earnings Call. My name is Elliot and I will be c ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number: 001-38894 Mayville Engineering Company, Inc. (Exact Name of Registrant as Specified in its Charter) Wisconsin 39-094 ...