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 that it will issue third quarter 2025 results after the market closes on Tuesday, November 4, 2025. A conference call will be held the following day, Wednesday, November 5, 2025, at 10:00 a.m. ET to review the Company's financial results, discuss recent events and conduct a question-and-answer session.

A webcast of the conference call and accompanying presentation materials will be available in the Investor Relations section of the Company's corporate website at https://ir.mecinc.com. To listen to a live broadcast, go to the site at least 15 minutes prior to the scheduled start time in order to register, download, and install any necessary audio software.

To participate in the live teleconference:

United States Live:		1-833-470-1428
Canada Live:		1-833-950-0062
Access Code:		427240

To listen to a replay of the teleconference, which will be available through November 19, 2025:

United States Replay:		1-866-813-9403
Canada Replay:		1-226-828-7578
Access Code:		698912

ABOUT MAYVILLE ENGINEERING COMPANY

Founded in 1945, MEC is a leading U.S. based, vertically integrated, value-added manufacturing partner providing a full suite of manufacturing solutions from concept to production, including design, prototyping and tooling, fabrication, aluminum extrusion, coating, assembly and aftermarket components. Our customers operate in diverse end markets, including heavy- and medium-duty commercial vehicles, construction & access equipment, powersports, critical power & data center, agriculture, military, and other end markets. Along with process engineering and development services, MEC maintains an extensive manufacturing infrastructure with 27 facilities, of which 26 are in use, across nine states. These facilities make it possible to offer conventional and CNC (computer numerical control) stamping, shearing, fiber laser cutting, forming, drilling, tapping, grinding, tube bending, machining, welding, assembly, and logistic services. MEC also possesses a broad range of finishing capabilities including shot blasting, e-coating, powder coating, wet spray and military grade chemical agent resistant coating (CARC) painting. For more information, please visit www.mecinc.com.

View source version on businesswire.com: https://www.businesswire.com/news/home/20251022461183/en/

INVESTOR CONTACT

Stefan Neely or Noel Ryan

(615) 844-6248

MEC@val-adv.com

Mayville Engineering Company Announces Third Quarter 2025 Results Conference Call and Webcast Date