RevenueDisaggregation of Revenue
The Company classifies its channel customers as follows:
Megaproject (“MPD”)MPD customers are major firms that develop, design, build, own and/or operate large-scale desalination
plants or projects.  Revenues from projects generally exceed $1.0 million and the MPD project timeline between project tender
and shipment are generally up to 36 months; however, from time-to-time, may exceed 36 months.
Original Equipment Manufacturer (“OEM”).  In addition to the type of customers listed below, revenues from projects generally
are $1.0 million or less and the OEM project timeline from project tender to shipment generally ranges from one to 16 months;
however, from time-to-time, may exceed 16 months.
Water: OEM customers are companies that supply equipment, packaged systems, and various operating and
maintenance solutions for small to medium-sized desalination plants, utilized by commercial and industrial
entities, as well as national, state and local municipalities worldwide.
Emerging Technologies: OEM customers include direct sales to commercial or industrial customers, such as
supermarket chains, cold storage facilities, and other industrial users.  Also, included are sales to
intermediaries, such as refrigeration system installers or refrigeration original equipment manufacturers.
Aftermarket (“AM”)AM customers are desalination plant owners and/or operators who can utilize the Company’s technology to
upgrade or keep their plant running.  AM revenue includes sales of spare parts, repair services, field services and various
commissioning activities.
The following table presents the disaggregated revenues by segment, and within each segment, by geographical market based on the
customer “shipped to” address, and by channel customers.  Sales and usage-based taxes are excluded from revenues.  See Note 9,
Years Ended December 31,
2025
2024
2023
Water
Emerging
Technologies
Total
Water
Emerging
Technologies
Total
Water
Emerging
Technologies
Total
(In thousands)
Geographical market
Middle East
$68,084
$92
$68,176
$59,538
$399
$59,937
$49,501
$177
$49,678
Africa
15,010
15,010
30,731
30,731
26,936
0
26,936
Other
51,608
193
51,801
54,041
239
54,280
51,288
447
51,735
Total
revenue
$134,702
$285
$134,987
$144,310
$638
$144,948
$127,725
$624
$128,349
Channel
Megaproject
$82,885
$
$82,885
$95,399
$
$95,399
$83,665
$
$83,665
Original
equipment
manufacturer
31,748
192
31,940
31,337
188
31,525
25,548
447
25,995
Aftermarket
20,069
93
20,162
17,574
450
18,024
18,512
177
18,689
Total
revenue
$134,702
$285
$134,987
$144,310
$638
$144,948
$127,725
$624
$128,349
Contract Assets
The Company records unbilled receivables as contract assets, which are included in prepaid expenses and other assets on the
Consolidated Balance Sheets. The following table presents the change in contract asset balances during the reported periods.
Years Ended December 31,
2025
2024
(In thousands)
Contract assets balance, beginning of year
$2,776
$592
Transferred to trade receivables
(2,776)
(592)
Additions to contract assets, excluding amounts transferred to trade receivables during the year
1,647
2,776
Contract assets balance, end of year
$1,647
$2,776
Contract Liabilities
The Company records contract liabilities, which consist of customer deposits and deferred revenue, when cash payments are
received in advance of the Company’s performance.  The following table presents the change in contract liability balances during the reported
periods.
Years Ended December 31,
2025
2024
(In thousands)
Contract liabilities, beginning of year
$571
$1,187
Revenue recognized
(297)
(1,085)
Cash received, excluding amounts recognized as revenue during the year
765
469
Contract liabilities, end of year
$1,039
$571
Remaining Performance Obligations
As of December 31, 2025, the following table presents the revenue that is expected to be recognized related to performance
obligations that are unsatisfied or partially unsatisfied.
Period
Remaining
Performance
Obligations
(In thousands)
2026
10,374
2027
6,587
Total
$16,961

Historical Timeline

Fiscal YearFiled
2025Feb 25, 2026Showing above
2024Feb 26, 2025
2023Feb 21, 2024
2022Feb 22, 2023
2021Feb 24, 2022
2020Mar 12, 2021
2019Mar 6, 2020
2018Mar 7, 2019

About Revenue Disclosures

Revenue disclosures under ASC 606 explain how a company identifies performance obligations, allocates transaction prices, and determines when revenue is recognized. This section is essential for understanding whether reported revenue reflects genuine economic activity or aggressive accounting choices. Analysts examine the mix of point-in-time versus over-time recognition, which directly affects revenue timing and comparability.

Key signals: rising contract liabilities (deferred revenue) suggest strong future revenue visibility, while declining contract assets may indicate slowing project milestones. Watch for variable consideration estimates — rebates, returns, and performance bonuses that require management judgment. Significant changes in disaggregated revenue by geography or product line can reveal shifting business mix before it appears in headline numbers. Compare revenue growth against contract liability growth to assess sustainability, and scrutinize any changes in the timing of recognition that coincide with earnings pressure.