Plum Acquisition Corp. IV Announces Definitive Business Combination with Controlled Thermal Resources, Valuing Target at $4.7 Billion
PLMK is trading near its 52-week low of $9.94 (5.8% above the low).
Summary
Plum Acquisition Corp. IV has entered a definitive agreement to merge with Controlled Thermal Resources, a critical minerals and clean energy developer, in a transaction valuing CTR at $4.7 billion.
Key Events · M&A and Partnerships · PLMK
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Definitive Merger Agreement
Plum Acquisition Corp. IV (PLMK) will combine with Controlled Thermal Resources Holdings Inc. (CTR), an emerging leader in critical minerals and clean geothermal energy.
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Significant Valuation
The transaction values CTR at a pro forma enterprise value of approximately $4.7 billion.
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Strategic Focus
The combined company will develop CTR's Hell's Kitchen Project, aiming for 650 MW of geothermal power and 100,000 metric tons/year of lithium carbonate, alongside other critical minerals.
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Capital Infusion
The deal is expected to provide $285 million in cash to CTR's balance sheet, supporting Stage 1 construction.
Analysis · PLMK · Real Estate & Construction
This definitive business combination agreement transforms Plum Acquisition Corp. IV from a special purpose acquisition company into an operating entity focused on critical minerals and clean geothermal energy. The target, Controlled Thermal Resources (CTR), is developing a significant project in California's Imperial Valley, aiming to produce lithium carbonate and geothermal power. The transaction provides substantial capital for CTR's Stage 1 construction, positioning the combined company to address growing demand for battery materials and baseload power for data centers. This strategic move aligns with national security and industrial growth priorities, but successful execution of the large-scale project remains key.
How filings like this one have moved
In the 30 days to Sep 15, 2026, 40.7% of the 388 measured filings Wiseek scored 9 moved their stock by 5% or more by the next session's close. The median move was -0.42%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, PLMK was trading at $10.52 on NASDAQ in the Real Estate & Construction sector, with a market capitalization of approximately $255M. The 52-week trading range was $9.94 to $10.64. This filing was assessed with positive market sentiment and an importance score of 9 out of 10.