Revenue Recognition

In accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 606 - Revenue from Contracts with Customers (“ASC 606”), the Company records revenue in an amount that reflects the consideration to which the Company expects to be entitled in exchange for goods or services promised to its customers. Under ASC 606, the Company follows a five-step model to: (1) identify the contract with the customer; (2) identify the performance obligations in the contract; (3) determine the transaction price for the contract; (4) allocate the transaction price to the performance obligations; and (5) recognize revenue using one of the following two methods:

Over time

The Company designs, manufactures and sells custom chemical vapor deposition, thermal process equipment and other equipment through contractual agreements. These system sales require the Company to deliver functioning equipment that is generally completed within two to eighteen months from commencement of order acceptance. For systems sales that meet the criteria to recognize revenue over time, the Company recognizes revenue over time by using an input method based on costs incurred as it depicts the Company’s progress toward satisfaction of the performance obligation. For system sales that do not meet the criteria to recognize revenue over time based on the contract provisions, the Company recognizes revenue based on point in time.

Under the over time method, revenue arising from fixed price contracts is recognized as work is performed based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligations. Incurred costs include all direct material and labor costs and those indirect costs related to contract performance, such as supplies, tools, repairs and depreciation costs. Contract material costs are included in incurred costs when the project materials have been purchased or moved to work-in-process, and installed, as required by the project’s engineering design. Cost based input methods of revenue recognition require the Company to make estimates of costs to complete the projects. In making such estimates, significant judgment is required to evaluate assumptions related to the costs to complete the projects, including materials, labor and other system costs. If the estimated total costs on any contract are greater than the net contract revenues, the Company recognizes the entire estimated loss in the period the loss becomes known and can be reasonably estimated. There were no material impairment losses recognized on contract assets during the three months ended March 31, 2025 and 2024.

The timing of revenue recognition, billings and collections results in accounts receivables, unbilled receivables or contract assets and contract liabilities on our consolidated balance sheet. Under typical payment terms for our contracts accounted for over time, amounts are billed as work progresses in accordance with agreed-upon contractual terms, either at periodic intervals or upon achievement of contractual milestones.

Under ASC 606, payments received from customers in excess of revenue recognized to date result in a contract liability. These contract liabilities are not considered to represent a significant financing component of the contract because we believe these cash advances and deposits are generally used to meet working capital demands, which can be higher in the earlier stages of a contract. Also, advanced payments and deposits provide us with some measure of assurance that the customer will perform on its obligations under the contract.

Contract assets include unbilled amounts typically resulting from system sales under contracts and represents revenue recognized that exceeds the amount billed to the customer.

Contract liabilities include advance payments and billings in excess of revenue recognized. The Company typically receives down payments upon receipt of order and progress payments as the system is manufactured.

Contract assets and contract liabilities are classified as current as these contracts in progress are expected to be substantially completed within the next twelve months.

Point in time

For non-system sales of products and services, revenue is recognized at the point in time when control of the promised products or services is transferred to the Company’s customers, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those products or services (the transaction price). A performance obligation is a promise in a contract to transfer a distinct product or service to a customer and is the unit of account under ASC 606, “Revenue from Contracts with Customers.”

For any system equipment sales where the equipment would have an alternative use or where the contract provisions of the contract preclude the use of over time revenue recognition, revenue is recognized at the point in time when control of the equipment is transferred to the customer. For the three months ended March 31, 2025 and 2024, all system equipment sales were recorded over time by using an input method except for a) one contract that was recorded as revenue at the point in time the equipment was transferred to the customer during the third quarter of fiscal year 2024 and b) one contract that was entered during 2024 and will be recognized as revenue after March 31, 2025 upon transfer of the equipment to the customer.

Product Warranty

The Company typically provides standard warranty coverage on its systems for one year from the date of final acceptance or fifteen months from the date of shipment by providing labor and parts necessary to repair the systems during the warranty period. The Company records the estimated warranty cost when revenue is recognized on the related system. Warranty cost is included in “Cost of revenue” in the condensed consolidated statements of operations. The estimated warranty cost is based on the Company’s historical cost. The Company updates its warranty estimates based on actual costs incurred.