What EMCOR Group, Inc. told the SEC could break it.

Material, energy and fuel price escalation can cut profitability on in-progress fixed-price projects, since price-increase timing lags input cost increases and some contracts don't allow price adjustments.

“Further, the timing of our price increases may lag the timing of the underlying increases in commodity or material prices and certain of our contracts do not allow us to adjust our prices. As a result, increases in material or fuel costs could reduce our profitability with respect to projects in progress.”

EMCOR's execution depends on maintaining an adequate skilled labor force (and on subcontractors facing the same constraint); shortages could raise labor expenses or impair its ability to operate efficiently.

“We cannot be certain that we will be able to maintain an adequate skilled labor force necessary to operate efficiently and to support our business strategy or that labor expenses will not increase as a result of a shortage in the supply of these skilled personnel. We also rely on third-party subcontractors to complete portions of some of our projects and those subcontractors are subject to the same challenges and uncertainty in employing, training and retaining an adequate qualified labor force to meet our needs.”

Increased trade-protection measures such as tariffs (and geopolitical supply-chain disruptions) can raise material/energy prices and may cause EMCOR's customers to curtail use of its services.

“an increase in trade protection measures such as tariffs, or the disruption, modification, or cancellation of multilateral trade agreements, may adversely affect our customers and as a result cause them to curtail the use of our services.”

EMCOR depends on third-party vendors/manufacturers for much of its materials and equipment (and on subcontractors for portions of projects); shortages or long lead times have already adversely affected operations.

“Additionally, we rely on third-party vendors and manufacturers to supply much of the materials and equipment necessary for our operations. Disruptions, shortages, or delays in the availability of such materials and equipment have had and may have adverse impacts on our results of operations, cash flows, and reputation with our customers.”