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Principal Deposits 1. Kirka 2. Boron 3. Searles Lake 4. Tincalayu 5. Bigadic 6. Emet 7. Jadar 8. Bor 9. Liaoning
Deposit Type
Neogene sodium borates
Neogene calcium borates
Salar-type deposits
Metamorphic/skarn types
5 7 8
World borate deposits – Miocene subduction
6
1
2 3
4
9
2
Serbia, the next borate province?
Pannonian
Basin
Kirka
Kazan
Jarandol
Jadar
Valjevo
Borate
Lacustrine Evaporite Deposits
and Occurrences
Sodium Carbonate
Tertiary Calc-Alkaline
Volcanic Centers
Halite
Bigadic
Emet
Beypazari
Kestelek
Valjevo Neogene basin covered with an exploration license of 83.20 sq. km.
Valjevo project
-10 drill holes
-4492m drill core
7 drill holes intersected borate
mineralization
Preserved borates
identified over 9.3km2
to 14.7km2.
Thickness of
preserved borate
ranges from 1.3m to
20.9m in 7 holes
where intersected.
The best drill intercept
is from VBN-008 that
contained 8m of
12.3% B2O3 including
3m of 15.1% B2O3.
Highest Borate grades
incl.1.6m @ 18.2%
B2O3 (VBN-4) and
1.0m @ 17.7% B2O3
(VBN- 8)
Highest Li2O grades
up to 18.8m @ 0.26%.
Grades increasing /
depth of mineralization
shallowing to NW.
Mineralization is open
in all directions
A
A’
Mineral inventory estimate B2O3 and Li2O
Blok # Drill Hole Total
Thickness
(m)
Surface
area (m2) Surface area
(km2) Density
(kg/m3) Volume (m3)
Metric
Tonnage of
preserved
mineral
horizons
Total
Preserved
Resources
per block
(MT)
Weighted
Grade B2O3
(%)
Metric
Tonnage of
B2O3
Weighted
Grade Li2O
(%)
Metric
Tonnage
of Li2O
1 VBN_001 4
1.485.00
0 1.49
2.220
5.940.000
13.186.800 13.19 8.20
1.081.318 0.25
32.967
2 VBN_004 4
2.310.00
0 2.31
2.220
9.240.000
20.512.800 20.51 11.57
2.373.331 0.21
43.077
3 VBN_005 4
1.708.00
0 1.71
2.220
6.832.000
15.167.040 15.17 8.00
1.213.363 0.11
16.684
4 VBN_008 4
1.566.00
0 1.57
2.220
6.264.000
13.906.080 13.91 13.82
1.921.820 0.21
29.203
5 VBN_010 4
1.305.00
0 1.31
2.220
5.220.000
11.588.400 11.59 9.61
1.113.645 0.22
25.494
6 VBN_011 4
2.529.00
0 2.53
2.220
10.116.000
22.457.520 22.46 13.08
2.937.444 0.18
40.424
Total Area of Mineral
extent (km2)
Total Preserved
Resource
(MT)
Average grade
B2O3 %
Total Preserved
B2O3 (MT)
Average grade
Li2O %
Total Preserved
Li2O (MT)
10.90 96.82 10.71 10.64 0.20 0.19
Mineral Inventory
97MT @ 10.7% B2O3
B2O3 Mineral inventory estimate polygon map
8.2
1.08
11.57
2.37
13.82
1.92 8.00
1.21 9.61
1.11
13.08
2.94
4 Block #
B2O3%
B2O3 (MT)
Mineral Inventory
97MT @ 0.19% Li2O
Li2O Mineral inventory estimate polygon map
0.18
0.04 0.21
0.03 0.22
0.03
0.21
0.04
0.25
0.03
0.11
0.02
Block # 4
Li2O (MT)
Li2O%
Valjevo project
8
Cross-section showing one seam of probertite (NaCaB5O9•5H2O) mineralization.
View is looking to the Southeast.
Valjevo Cross-section
A-A’
Valjevo project
9
• Bouguer Gravity map shows Valjevo basin geometry
-over 750 reading stations
-Completed Bouguer gravity at
2.5gm/cc with 0.5 mGal
Petlovača
19o 20o 21o
44o 44o
19o 20o 21o
Rio Tinto
Belgrade
10
Jadar
(2004)
Valjevo (2011)
Piskanja
(1987)
GeoMin
Balkan Au
0 20
kilometers
Serbian boron deposits & exploration licenses
GeoMin Valjevo license
About GeoMin
Director Jovan Grubin is a professional engineer of technology and a business manager
with 20+ years of working experience at highest standards of safe and ethical conduct in
complex business environments. Most recently Jovan organized the incorporation of the
start-up Lithium LI Holdings (PGZ JV) subsidiaries in Serbia and Bosnia Herzegovina. As
respective country directors, he worked diligently on stakeholder engagement activities
and day-to-day company management, securing legal and social license to operate in both
countries.
Bob Kellie, former Rio Tinto chief geologist, has made himself available to assist and
liaison with technical matters during the initial projection transition and is also available for
subsequent exploration. Bob is a professional geologist with a track record of
demonstrated success in global minerale exploration and evaluation. He directed efforts to
target, acquire and test prospective exploration licenses in the Balkans, leading to the
discovery of both Rio Tinto’s Jadar B/Li deposit and the Valjevo B/Li prospect in Serbia.
Bob has been intermittently exploring for evaporates in the Balkans since 1997.
The Jantar Group, headed by Dusan Simic, has been contracted to provide project
technical control and supervision over exploration activities as mandated by Serbian
mining Law. The Jantar Group is the region's leading mining services company providing
oversight for all exploration and mining activities.
