America’s Largest & Most Advanced
Geothermal Power + Critical Minerals Project

 
CTR Steam Testing 04-05-2022-33.jpg

Leading the U.S. in Renewable Baseload Power and Critical Minerals

Controlled Thermal Resources Holdings Inc. has announced plans to publicly list CTR’s subsidiary, American Critical Resources (ACR) in the United States.

ACR will include Stage 1 assets of CTR’s Hell’s Kitchen Project in Imperial County, California, and three additional lithium production facilities, providing a total output of 50 megawatts of renewable electricity and approximately 100,000 metric tons annually of lithium carbonate.

ACR is strategically positioned to deliver 24/7 baseload renewable power and a secure domestic supply of lithium and other critical minerals essential to U.S. energy independence.

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Integration Icon
Integrated project with diversified revenue streams including baseload power and lithium, and capacity for additional critical minerals production.
Technology Icon
Fully demonstrated, first-of-its-kind minerals extraction process backed by Baker Hughes’ Definitive Feasibility Study.
Partnership Icon
Hell’s Kitchen Project anchored by strategic partnerships with major global auto manufacturers.
Construction Icon
One of the only shovel-ready projects in the U.S., with long lead equipment built and staged for construction.

Demonstrated and Proven Baseload Power + Critical Minerals Process

ACR Process Diagram
Minimal physical footprint
No open-pit mining or evaporation ponds
No overseas processing
No process tailing ponds
Powered by clean baseload energy
Near-zero carbon emissions

Located in World’s Largest Geothermal Lithium Resource Area

According to an assessment from Lawrence Berkeley National Laboratory 'Geothermal Lithium Resource at Salton Sea, 2023', the Salton Sea Geothermal Reservoir is estimated to contain a proven lithium resource of 4.1 million metric tons of Lithium Carbonate Equivalent (LCE) and a probable lithium resource of 18 million metric tons of LCE.

Proven LCE Resource 4.1 million tonnes Equivalent to 90 million Tesla Model S Cars
Probable LCE Resource 18 million tonnes Equivalent to 375 million Tesla Model S Cars

Definitive Feasibility Study Supports 30-Year Operating Life

In June 2024, Baker Hughes completed geological assessment, well modeling, and reservoir simulation for Stage 1, estimating geothermal power and lithium potential under SEC S-K 1300 standards.

Stage 1 Resource Estimates
  • Definitive report validates mineral resources and reserves to support a 30-year project life for Stage 1, as well as technical capability of the mineral extraction and processing design to produce the final product.
  • Total Measured and Indicated Resource: 1.7 million metric tons (Mt) Lithium Hydroxide Monohydrate at 219 ppm concentration in reservoir brine.
 

De-risked Execution with Leading Development Partners

Over 10 years in development. Hell’s Kitchen is a proven and permitted near-term opportunity.

Drill Rig Groundbreaking Facility Equipment Equipment Transport

Engineering & Permitting

  • Engineering for Stage 1 more than 50% complete
  • Conditional Use Permit obtained
  • Federal FAST-41 permits in process

Proven Demonstration & Production Process

  • Operation of 1/15th scale DLE process achieving 95–97% lithium recovery
  • Battery-grade lithium processing by technology partner Aquatech

Procurement

  • Long-lead equipment built and staged for construction commencement
  • Procurement and project management experts engaged

Construction & Workforce Training

  • Project Labor Agreement executed for construction and major maintenance
  • Imperial Valley College ‘LIFT’ training program activated
 

American Resource Resilience

In comparison to ‘pure play’ lithium projects, ACR will generate income streams from multiple resources, including baseload power, lithium, and other critical minerals. ACR is investigating additional minerals production, including potassium, boron, manganese, cesium, rubidium, strontium, and rare earth elements (REEs).

The Idaho National Laboratory completed a report in May 2023: ‘Rare Earth Elements in the CTR’s Salton Sea Geothermal Brine’. The report identified minerals occurring in abundant quantities and elements requiring further investigation to confirm economic concentrations.

Occurs in Significant Quantities
Investigating Economic Concentrations
← Scroll to view full table →
Lanthanides
Actinides
H
He
Li
Lithium
No. 3
Occurs in Significant Quantities
Be
Beryllium
No. 4
Investigating Economic Concentrations
B
Boron
No. 5
Occurs in Significant Quantities
C
N
O
F
Ne
Na
Sodium
No. 11
Occurs in Significant Quantities
Mg
Magnesium
No. 12
Investigating Economic Concentrations
Al
Si
Silicon
No. 14
Occurs in Significant Quantities
P
S
Sulfur
No. 16
Investigating Economic Concentrations
Cl
Chlorine
No. 17
Occurs in Significant Quantities
Ar
K
Potassium
No. 19
Occurs in Significant Quantities
Ca
Calcium
No. 20
Occurs in Significant Quantities
Sc
Scandium
No. 21
Investigating Economic Concentrations
Ti
Titanium
No. 22
Investigating Economic Concentrations
V
Cr
Mn
Manganese
No. 25
Occurs in Significant Quantities
Fe
Iron
No. 26
Occurs in Significant Quantities
Co
Cobolt
No. 27
Investigating Economic Concentrations
Ni
Nikel
No. 28
Investigating Economic Concentrations
Cu
Copper
No. 29
Investigating Economic Concentrations
Zn
Zinc
No. 30
Occurs in Significant Quantities
Ga
Ge
As
Arsenic
No. 33
Investigating Economic Concentrations
Se
Br
Bromine
No. 35
Investigating Economic Concentrations
Kr
Rb
Rubidium
No. 37
Investigating Economic Concentrations
Sr
Strontium
No. 38
Occurs in Significant Quantities
Y
Yttrium
No. 39
Investigating Economic Concentraions
Zr
Nb
Mo
Tc
Ru
Rh
Pd
Ag
Silver
No. 47
Investigating Economic Concentrations
Cd
Cadmium
No. 48
Investigating Economic Concentrations
In
Sn
Sb
Te
I
Iodine
No. 53
Confirming Economic Concentrations
Xe
Cs
Cesium
No. 55
Investigating Economic Concentrations
Ba
Barium
No. 56
Occurs in Significant Quantities
La
Lanthanum
No. 57
Investigating Economic Concentrations
Hf
Ta
W
Re
Os
Ir
Pt
Au
Hg
Tl
Thallium
No. 81
Investigating Economic Concentrations
Pb
Lead
No. 82
Investigating Economic Concentrations
Bi
Bismuth
No. 83
Investigating Economic Concentrations
Po
At
Rn
Fr
Ra
Ac
Rf
Db
Sg
Bh
Hs
Mt
Ds
Rg
Cn
Nh
Fl
Mc
Lv
Ts
Og
La
Lanthanum
No. 57
Investigating Economic Concentrations
Ce
Cerium
No. 58
Investigating Economic Concentrations
Pr
Praseodymium
No. 59
Investigating Economic Concentrations
Nd
Neodymium
No. 60
Investigating Economic Concentrations
Pm
Sm
Samarium
No. 62
Investigating Economic Concentrations
Eu
Europium
No. 63
Investigating Economic Concentrations
Gd
Gadolinium
No. 64
Investigating Economic Concentrations
Tb
Terbium
No. 65
Investigating Economic Concentrations
Dy
Dysprosium
No. 66
Investigating Economic Concentrations
Ho
Holmium
No. 67
Investigating Economic Concentrations
Er
Erbium
No. 68
Investigating Economic Concentrations
Tm
Thulium
No. 69
Investigating Economic Concentrations
Yb
Ytterbium
No. 70
Investigating Economic Concentrations
Lu
Luteium
No. 71
Investigating Economic Concentrations
Ac
Th
Pa
U
Np
Pu
Am
Cm
Bk
Cf
Es
Fm
Md
No
Lr

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Geothermal Resource at the Salton Sea

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