We are the by‑product critical metal company of America

Kunin is America’s only vertically integrated ion-exchange technology company

The United States was the Leader in Critical Mineral Production. In fact, we invested, commercialized, and industrialized the technologies used today.

But then mining operations went off-shore.

Now the United States is import reliant on foreign entities.

Bureau of Mines abolished
Pittsburgh PA
1996
metals
All metals
DETAILS
R&D and policy capacity fragmented; investment stalls.
Rhenium from Mo roasters
Sierrita AZ
1980s-2000s
metals
Rhenium
DETAILS
Became top Re producers via scrub-liquor recovery from Mo roasting.
SX-EW deployment
Morenci AZ
1980s-1990s
metals
Copper oxide
DETAILS
Global benchmark for low-grade, low-cost copper cathode production.
Gallium/Indium recovery
TX/AR
1970s-1990s
metals
Ga/In
DETAILS
Hydrometallurgical breakthroughs positioned U.S. as early Ga/In leader.
Te/Se/Cd processing
OH/PA
1970s-1980s
metals
Te/Se/Cd
DETAILS
Ultra-high-purity chalcogen refinement enabling early thin-film PV.
Phosphoric acid U recovery
C. Florida
1970s-1980s
metals
Uranium
DETAILS
Became the globe's largest U producer from fertilizer process streams.
Heap Leach + CIP/CIL
NE Nevada
1961-1980s
metals
Gold
DETAILS
Unlocked sub-ppm gold deposits via heap leach and adsorption circuits.
Arsenic removal in autoclave
N. Nevada
1980s
metals
As/Sb
DETAILS
Pioneered hydrometallurgical As control for refractory ore processing.
U.S. REE separations dominance
Ames Lab
1960s-1980s
metals
REE
DETAILS
Pioneered multi-stage SX flowsheets before offshoring to China.
Cobalt hydrometallurgy
Idaho Cobalt Belt
1960s-1970s
metals
Cobalt
DETAILS
First economically viable Co recovery from smelter residues.
HPAL development pilots
Idaho Falls ID
1950s-1960s
metals
Ni-Co
DETAILS
USBM HPAL pilots produced the basis for laterite hydrometallurgy.
Beryllium purification
Elmore OH
1950s-1970s
metals
Beryllium
DETAILS
Mastered Be reduction and vacuum melting for aerospace and nuclear.
Zr/Hf separation
Albany OR
1950s-1960s
metals
Zr/Hf
DETAILS
Developed SX/IX circuits to deliver nuclear-grade Zr for the power industry.
Amberlite IX industrialization
Philadelphia PA
1950s-1960s
metals
Base/precious metals
DETAILS
Kunin standardized IX resins; later applied to uranium and specialty metals.
Mountain Pass REE discovery
CA
1952+
metals
Rare Earths
DETAILS
Became global REE leader; SX separation technology matured domestically.
Uranium Boom
CO/UT/NM/AZ
1948-1960s
metals
Uranium
DETAILS
Exploration, mills, yellowcake supply for the nuclear power plant boom.
Zone refining Ge/Si
Murray Hill NJ
1947-1958
metals
Ge/Si
DETAILS
Pioneered zone refining; seeded U.S. dominance in early semiconductors.
Kroll process scale-up
DE
1940s-1950s
metals
Titanium
DETAILS
Industrialized Kroll reduction for aerospace and nuclear applications.
PUREX solvent extraction
Hanford WA
1943-1950s
metals
U/Pu
DETAILS
Invented PUREX, the canonical aqueous SX flowsheet used worldwide.
Manhattan Project
Oak Ridge TN
1942-1946
metals
Uranium
DETAILS
Ore-to-metal nuclear value chain; enrichment at industrial scale.
Electrorefining scale-up
UT/AZ
1920s-1940s
metals
Cu/Ag/Au/Se/Te
DETAILS
Large-scale electrolytic Cu refining enabled purity for early electronics.
Hall-Heroult scale-up
TN
1888-1950s
metals
Aluminum
DETAILS
Scaled Al smelting with cheap TVA power; established world cost leadership.
POX hydrometallurgy foundations
NV
1920s-1930s
metals
Au/Cu/Mo
DETAILS
High-pressure hydrometallurgy research unlocked new deposit types.
Climax Mo discovery
CO
1916-1930s
metals
Molybdenum
DETAILS
Primary Mo production for alloy steels, critical for WWI and WWII.
U.S. Bureau of Mines founded
DC
1910
metals
All metals
DETAILS
Processing R&D and technology dissemination across U.S. mining.
Bingham Canyon open-pit
UT
1906
metals
Cu-Mo
DETAILS
Industrialized bulk open-pit mining and large-scale mineral concentration.
Mesabi Range
MN
1890-1910
metals
Iron ore
DETAILS
Low-cost ore fuels U.S. steel ascendancy and the auto manufacturing explosion.
Butte - Richest Hill on Earth
MT
1880s-1910s
metals
Cu/Ag/Zn/Mn
DETAILS
Birth of U.S. copper dominance; electrification metals boom.
Comstock Lode
NV
1859-1870s
metals
Silver
DETAILS
Underground mining, large-scale milling.
California Gold Rush
CA
1848-1855
metals
Gold
DETAILS
Launches large-scale Western mining. Why California is the Golden State.
Copperhill/Ducktown
TN
1840s-1920s
metals
Copper
DETAILS
Opened the Southern copper industry; at points world's largest smelting hub.
Missouri Lead Belt
MO
1820s-1840s
metals
Lead/Ag
DETAILS
First sustained industrial-scale U.S. base-metals district.

A majority of these metals drive 21st century technology

Kunin Relevant
Critical Mineral
N
Major Industrial
Tap on an element to view details.
1
H
Hydrogen
2
He
Helium
3
Li
Lithium
Li
4
Be
Beryllium
Be
5
B
Boron
6
C
Carbon
7
N
Nitrogen
8
O
Oxygen
9
F
Fluorine
10
Ne
Neon
11
Na
Sodium
12
Mg
Magnesium
Mg
13
Al
Aluminum
Al
14
Si
Silicon
15
P
Phosphorus
16
S
Sulfur
17
Cl
Chlorine
18
Ar
Argon
19
K
Potassium
20
Ca
Calcium
21
Sc
Scandium
Sc
22
Ti
Titanium
Ti
23
V
Vanadium
V
24
Cr
Chromium
Cr
25
Mn
Manganese
Mn
26
Fe
Iron
Fe
27
Co
Cobalt
Co
28
Ni
Nickel
Ni
29
Cu
Copper
30
Zn
Zinc
Zn
31
Ga
Gallium
Ga
32
Ge
Germanium
Ge
33
As
Arsenic
As
34
Se
Selenium
35
Br
Bromine
36
Kr
Krypton
37
Rb
Rubidium
Rb
38
Sr
Strontium
39
Y
Yttrium
Y
40
Zr
Zirconium
Zr
41
Nb
Niobium
Nb
42
Mo
Molybdenum
44
Ru
Ruthenium
Ru
45
Rh
Rhodium
Rh
46
Pd
Palladium
Pd
47
Ag
Silver
48
Cd
Cadmium
49
In
Indium
In
50
Sn
Tin
Sn
51
Sb
Antimony
Sb
52
Te
Tellurium
Te
53
I
Iodine
54
Xe
Xenon
55
Cs
Cesium
Cs
56
Ba
Barium
Ba
57
La
Lanthanum
La
58
Ce
Cerium
Ce
59
Pr
Praseodymium
Pr
60
Nd
Neodymium
Nd
62
Sm
Samarium
Sm
63
Eu
Europium
Eu
64
Gd
Gadolinium
Gd
65
Tb
Terbium
Tb
66
Dy
Dysprosium
Dy
67
Ho
Holmium
Ho
68
Er
Erbium
Er
69
Tm
Thulium
Tm
70
Yb
Ytterbium
Yb
71
Lu
Lutetium
Lu
72
Hf
Hafnium
Hf
73
Ta
Tantalum
Ta
74
W
Tungsten
W
75
Re
Rhenium
Re
76
Os
Osmium
Os
77
Ir
Iridium
Ir
78
Pt
Platinum
Pt
79
Au
Gold
80
Hg
Mercury
81
Tl
Thallium
82
Pb
Lead
83
Bi
Bismuth
Bi
90
Th
Thorium
92
U
Uranium

All of these metals are recovered as by-products from operating mining assets.

But for the past 40 years, they have not been recovered in the United States.
Mining operators have focused on primary metal production.

Because China is winning on the cost structure for separations

Linear axis, true proportions — germanium, scandium, hafnium & gallium cost far more per kg than the cheaper metals (yttrium, antimony, bismuth, zirconium, tungsten), whose bars are correspondingly short.Spot priceis a floating green line above each pair (current ex-China / Western quote, May–Jun 2026); it is not drawn to the cost axis because spot ranges up to ~$13,000/kg (hafnium) and would otherwise dwarf the cost bars. Multiple = US cost ÷ China cost; only niobium is <1× (US below China, since China’s figure is import-parity on Brazilian feed). Units: Sc & Y per kg oxide, Nb per kg contained Nb, others per kg metal. Hover any bar or line for full detail & sources.

Because with the projects went talent and technology

Mining-engineering talent, US vs China, by decade.

Mining-engineering talent, US vs China, by decade.

Mining-engineering talent, US vs China, by decade.

1956

BGRIMM mining & mineral-processing institute

1956

BGRIMM mining & mineral-processing institute

1956

BGRIMM mining & mineral-processing institute

1956

BGRIMM mining & mineral-processing institute

1956

BGRIMM mining & mineral-processing institute

1956

BGRIMM mining & mineral-processing institute

Cumulative count of national critical-minerals institutes, universities, and specialized technical programs (founding +1, closure −1). The shaded band is China's standing lead. An illustrative index of institutional momentum, not one official statistic. Hover any point for the milestone and source.

1/6

Annual mining / critical-minerals R&D spend, US vs China, by decade, in PPP-adjusted USD millions (US = private + public combined).

Now China export restricts the key technologies for separation and metal recovery

Metal products
Separation technologies
2001

China restricted not only the export of metals, but the technologies used to make them. This single time-axis chart documents two decades of Chinese outbound export restrictions, on the metal products themselves and on the separation and processing technology.

Ion-exchange is how we selectively extract and recover metals from low concentrations & high impurities

A real rock (the ore) holds many metals. Mining and milling free it; leaching dissolves it into a dirty, low-grade solution (lots of impurity ions, little of the target). In the ion-exchange column the resin selectively binds the target metal while impurity ions wash through (the raffinate); eluting the resin then releases a clean, concentrated stream that goes to refining.

process-tech phases + 2030 fork

With economies of scale largely exhausted and autonomy on the way, step-changes in process technology are now the primary lever for offsetting grade-driven cost escalation

Each process-tech era is a shaded phase; from 2030 the separation cost forks: runaway without a breakthrough, or bent down by a Kunin IX breakthrough.

Left axis: copper head grade (% Cu) with the operating-grade band. Right axis: separation cost share (grade-driven to 2030, then the two scenarios). Shaded vertical bands are process-tech eras: pre-flotation, froth flotation (1912), flash smelting (1949), SX-EW (1968), HPGR & autonomy (2006), and the post-2030 “next step-change?” zone. Faint vertical lines mark each invention year. Scenario branches are illustrative (Kunin branch basis: Metionic IX TEA; runaway branch: modeled).

Our approach to ion-exchange

A new cost & performance frontier

Two tracks — the technology and the full-stack model — converge to unlock resources the industry leaves behind.

The Kunin model

Kunin is America's Critical Metal Company

We are America's vertically integrated ion-exchange company: resin manufacturer, process technology developer, and metal producer.

01

Resin Manufacturer

We produce a new resin form factor using the Same functional Chemistry tree developed since the 1940s.

01

Process Technology Developer

We develop metal recovery processes using ion-exchange. Any feedstock. Any metal theperiodic table.

01

Project Builder

We design and build co-productplants at operating mines, smelters. refineries. and industrial