Sigma Lithium Ships Battery Grade Lithium Concentrate Samples to Potential Long Term Off-Take Partners Drilling Program Update Includes Lithium Ore Assays with Ultra High Grade of 6.15% Li2O
Sigma Lithium Ships Battery Grade Lithium Concentrate Samples to Potential
Long Term Off-Take Partners
Drilling Program Update Includes Lithium Ore Assays with Ultra High Grade of 6.15% Li2O
VANCOUVER, British Columbia, Oct. 09, 2018 -- SIGMA Lithium Corporation (" Sigma " or the "Corporation") (TSX-V:
SGMA) is pleased to announce the shipment of high quality coarse lithium concentrate samples with an average grade of
6.27% Li2O and a size of 9.3mm to potential long term off-take partners in Asia for validation. The samples reflect the high
quality of Sigma’s spodumene concentrate, including its low impurities, specifically low levels of alkaline elements at 0.76% in
the form of sodium oxide plus potassium oxide and low levels of iron at 0.79% as iron oxide.
Shipping these samples represents a significant milestone for Sigma. Analysis and validation by significant customers of the
high-quality nature of Sigma’s lithium spodumene concentrate produced by the phase I production plant is an essential part of
the process of setting up long-term off-take relationships. Sigma is on schedule to “break ground” for the construction of a
larger commercial scale lithium concentrate production plant in 1Q19.
“The high quality of our spodumene concentrate reinforces the significance of this project,” said Calvyn Gardner, CEO of
Sigma. “Sigma’s relevance has been recognized in our ongoing discussions with potential off-take customers. We have
received overwhelming interest from key potential customers, including offers to potentially contribute towards capex financing
in exchange for off-take agreements to secure long term supply of our lithium concentrate. Such positive indications clearly
reflect that Sigma is viewed as a potentially large and reliable source of high-quality lithium concentrate for many years to
come.”
Sigma is also pleased to provide updated assay results from its ~30,000m diamond drilling campaign on the lithium deposits
at its Grota do Cirilo Property. The project’s lithium resources are expected to significantly increase from 13.5 million to at
least 37 million tonnes, as previously identified in Sigma’s existing National Instrument 43-101 (“NI 43-101”) independent
technical report filed earlier in 2018.
Areas of exceptional grades were identified from the assays of certain drill holes, with the exceptional lithium spodumene ore
grades ranging from 5.16% to 6.15% Li2O, as per the examples below:
• Xuxa Drill Hole 90: 5.16% of Li2O over 1 meter
• Barreiro Drill Hole 63: 5.59% of Li2O over 1 meter
• Lavra do Meio Drill Hole 4: 6.15% Li2O over 1 meter
Mr. Gardner added, “Our Grota do Cirilo Property in Brazil is truly unique. Our assays of spodumene ore have been confirming
grades so exceptional that they already meet battery grade level of 6% LiO2 while still at the ore stage. In other words, without
even running through the processing plant to concentrate the spodumene, Sigma’s ore from certain areas reaches the battery
grade Li2O levels in the lithium concentrate.”
Drill Results for September 2018 on Grota do Cirilo Lithium Property
In late May 2018, Sigma commenced a diamond (HQ core) drilling campaign to extend and develop the existing Grota do Cirilo
spodumene lithium mineral resource. The very positive results obtained thus far have led us to increase the amount of drilling
to ~36,000m from the original ~30,000m. This campaign is 80% complete and it is going to be the basis for a revised mineral
resource estimate, to be prepared by SGS Canada Geostat (“SGS”), which is expected to be finalized by the end of 2018.
The status of drilling assays received since the previous assay results release on September 13, 2018 for three of the lithium
deposits (Xuxa, Barreiro and Murial) are as follows:
1. Xuxa
• Sigma has received 100% of the assay results.
• The average grade of Xuxa is estimated at 1.5% Li2O. The average thickness of the deposit is estimated to be 15
meters.
• The summary of the drilling is as follows:
Year Number of
Holes
Total Meters
Drilled (m)
2018 25 6,029
2017 65 7,796
Total 90 13,825
• Highlights from the Xuxa assays are:
◦ 12.2m at 1.78% Li2O from 170m to 182m interval (drill hole DH-Xuxa - 75)
◦ 13.2m at 1.68% Li2O from 243m to 256m interval (drill hole DH-Xuxa - 77)
◦ 20.16m at 1.84% Li2O from 203m to 223m (drill hole DH-Xuxa - 88)
◦ 59.9m at 1.72% Li2O from 293m to 353m (drill hole DH-Xuxa - 90)
2. Barreiro:
• Sigma has received 80% of the assay results.
• The average grade of Barreiro is estimated at 1.4% Li2O. The average thickness of the deposit is estimated to be 31
meters.
Year Number of
oles
Total Meters
Drilled (m)
2018 87 15,677
2017 6 426
Total 93 16,103
• Highlights from the Barreiro assays are:
◦ 35.9m at 1.52% Li2O from 228m to 264m (drill hole DH-Bar-45)
◦ 29.4m at 1.64% Li2O from 90m to 119m (drill hole DH-Bar-46)
◦ 33.1m at 1.68% Li2O from 47m to 80m (drill hole DH-Bar-47)
◦ 33.0m at 1.53% Li2O from 86m to 119m (drill hole DH-Bar 48)
◦ 23.4m at 1.56% Li2O from 61m to 85m (drill hole DH-Bar 54)
◦ 83.0m at 1.01% Li2O from 196m to 279m (drill hole DH-Bar 63)
◦ 30.9m at 1.88% Li2O from 100m to 131m (drill hole DH-Bar 65)
◦ 31.9m at 1.74% Li2O from 218m to 249m (drill hole DH-Bar 66)
◦ 18.0m at 1.88% Li2O from 124m to 142m (drill hole DH-Bar 67)
◦ 19.7m at 1.62% Li2O from 108m to 130m (drill hole DH-Bar 72)
◦ 49.5m at 1.83% Li2O from 168m to 217m (drill hole DH-Bar 73)
3. Murial:
• Sigma has received 96% of the assay results.
• The average grade of Murial is estimated at 1.1% Li2O. The average thickness of the deposit is estimated to be 21
meters.
Year Number of
Holes
Total Meters
Drilled (m)
2018 24 3,911
2017 1 119
Total 25 4,030
• Highlights from the Murial assays are:
◦ 37.6m at 1.2% Li2O from 84m to 122m (drill hole DH -Mur-6)
◦ 39.6m at 1.06% Li2O from 81m to 104m (drill hole DH-Mur-9)
◦ 30.5m at 1.05% Li2O from 157m to 187m (drill hole DH-Mur-11)
◦ 23.9m at 1.07% Li2O from 129m to 153m (drill hole DH-Mur-14)
◦ 22.2m at 1.01% Li2O from 128m to 150m (drill hole DH-Mur-1)
The following table sets out the latest assay results received since the previous assay results release on September 13, 2018:
Name of Deposit Drill Hole ID Depth and Thickness (meters) Type of
Geology
Grade
(Li2O %
Average)
From To Thickness of
Orebody (1)
Barreiro DH-BAR-45 227.7 263.6 35.9 PG_Li 1.52
Barreiro DH-BAR-46 89.9 119.2 29.4 PG_Li 1.64
Barreiro DH-BAR-47 46.9 80.0 33.1 PG_Li 1.68
Barreiro DH-BAR-48 86.1 119.1 33.0 PG_Li 1.53
Barreiro DH-BAR-48 128.9 131.3 2.4 PG_Li 1.16
Barreiro DH-BAR-48 138.6 150.1 11.6 PG_Li 1.58
Barreiro DH-BAR-50 144.0 200.5 56.1 PG_Li 1.36
Barreiro DH-BAR-51 20.0 37.5 17.5 PG_Li 1.23
Barreiro DH-BAR-52 73.7 107.7 34.0 PG_Li 1.44
Barreiro DH-BAR-53 30.7 42.8 12.1 PG_Li 0.82
Barreiro DH-BAR-54 33.2 36.1 2.9 PG_Li 0.14
Barreiro DH-BAR-54 61.4 84.8 23.4 PG_Li 1.56
Barreiro DH-BAR-55 16.5 25.9 9.5 PG_Li 0.56
Barreiro DH-BAR-55 26.5 35.2 8.8 PG_Li 0.71
Barreiro DH-BAR-56 16.5 25.9 9.5 PG_Li 0.55
Barreiro DH-BAR-56 26.5 35.2 8.8 PG_Li 0.71
Barreiro DH-BAR-57 25.6 62.1 36.5 PG_Li 1.14
Barreiro DH-BAR-58 84.8 87.3 3.0 PG_Li 0.43
Barreiro DH-BAR-58 97.3 99.0 1.8 PG_Ab_Q 0.12
Barreiro DH-BAR-58 118.8 161.6 42.8 PG_Li 1.46
Barreiro DH-BAR-59 50.8 76.1 25.3 PG_Li 1.26
Barreiro DH-BAR-60 12.5 39.3 26.9 PG_Li 0.51
Barreiro DH-BAR-61 81.0 110.6 40.0 PG_Li 1.41
Barreiro DH-BAR-62 41.8 45.3 3.5 PG_Ab_Q 0.11
Barreiro DH-BAR-62 57.1 58.3 1.3 PG_Ab_Q 0.04
Barreiro DH-BAR-62 59.1 61.1 2.0 PG_Ab_Q 0.03
Barreiro DH-BAR-63 150.0 153.4 3.4 PG_Ab_Q 0.08
Barreiro DH-BAR-63 158.3 159.6 1.3 PG_Ab_Q 0.12
Barreiro DH-BAR-63 165.5 172.0 6.6 PG_Li 1.39
Barreiro DH-BAR-63 172.8 184.5 11.5 PG_Li 1.14
Barreiro DH-BAR-63 184.8 195.5 11.3 PG_Li 1.50
Barreiro DH-BAR-63 196.0 279.0 83.0 PG_Li 1.01
Barreiro DH-BAR-63 282.0 308.6 26.6 PG_Li 0.64
Barreiro DH-BAR-63 317.8 336.5 18.7 PG_Li 0.86
Barreiro DH-BAR-64 108.6 126.8 18.2 PG_Li 0.90
Barreiro DH-BAR-65 100.2 131.1 30.9 PG_Li 1.88
Barreiro DH-BAR-66 217.6 249.5 31.9 PG_Li 1.74
Barreiro DH-BAR-67 124.1 142.2 18.0 PG_Li 1.88
Barreiro DH-BAR-67 144.5 145.6 1.1 PG_Li 0.05
Barreiro DH-BAR-68 80.7 94.5 13.8 PG_Li 1.27
Barreiro DH-BAR-69 18.1 19.2 1.1 PG_Ab_Q 0.00
Barreiro DH-BAR-69 40.4 60.6 20.2 PG_Li 1.14
Barreiro DH-BAR-70 86.6 91.1 4.5 PG_Ab_Q 0.81
Barreiro DH-BAR-70 101.6 113.1 11.5 PG_Li 1.26
Barreiro DH-BAR-70 117.5 124.5 7.1 PG_Li 1.46
Barreiro DH-BAR-71 72.7 84.7 12.0 PG_Li 0.81
Barreiro DH-BAR-72 108.2 129.9 19.7 PG_Li 1.62
Barreiro DH-BAR-72 128.5 130.1 1.6 PG_Ab_Q 0.64
Barreiro DH-BAR-72 130.7 132.9 2.2 PG_Ab_Q 0.36
Barreiro DH-BAR-72 134.2 138.0 3.9 PG_Ab_Q 0.80
Barreiro DH-BAR-73 139.6 140.9 1.3 PG_Ab_Q 0.03
Barreiro DH-BAR-73 168.0 217.6 49.6 PG_Li 1.83
Barreiro DH-BAR-74 36.9 46.5 9.7 PG_Li 0.66
Murial DH-MURIAL-07 122.8 119.2 6.8 PG_Ab_Q 0.09
Murial DH-MURIAL-07 212.3 214.9 2.5 PG_Li 0.81
Murial DH-MURIAL-08 161.5 167.6 6.1 PG_Li 0.75
Murial DH-MURIAL-09 81.5 104.4 39.6 PG_Li 1.06
Murial DH-MURIAL-10 67.6 69.6 2.0 PG_Ab_Q 0.01
Murial DH-MURIAL-10 101.0 104.4 3.4 PG_Ab_Q 0.01
Murial DH-MURIAL-11 156.8 187.4 30.5 PG_Li 1.05
Murial DH-MURIAL-12 47.1 60.3 13.2 PG_Li 0.48
Murial DH-MURIAL-13 72.1 95.9 23.8 PG_Li 0.76
Murial DH-MURIAL-14 129.2 153.2 23.9 PG_Li 1.07
Murial DH-MURIAL-15 41.3 48.2 6.9 PG_Ab_Q 0.00
Murial DH-MURIAL-15 67.1 80.3 13.2 PG_Li 1.12
Murial DH-MURIAL-16 23.7 40.8 14.2 PG_Li 0.18
Murial DH-MURIAL-17 70.2 71.8 1.6 PG_Ab_Q 0.01
Murial DH-MURIAL-17 128.2 150.4 22.2 PG_Li 1.01
Murial DH-MURIAL-18 25.4 31.3 5.9 PG_Ab_Q 0.04
Murial DH-MURIAL-18 74.8 76.0 1.2 PG_Ab_Q 0.04
Murial DH-MURIAL-18 85.9 90.5 4.7 PG_Ab_Q 0.07
Xuxa DH-XUX-76 101.3 112.1 10.8 PG_Ab_Q 0.23
Xuxa DH-XUX-76 149.9 156.3 6.4 PG_Li 0.81
Xuxa DH-XUX-76 191.4 195.5 4.1 PG_Li 1.91
Xuxa DH-XUX-76 196.4 197.0 0.5 PG_Li 1.35
Xuxa DH-XUX-76 207.0 207.7 0.7 PG_Li 1.25
Xuxa DH-XUX-76 209.6 213.6 4.0 PG_Li 1.63
Xuxa DH-XUX-76 215.2 219.4 4.3 PG_Li 0.41
Xuxa DH-XUX-76 222.7 227.3 4.6 PG_Li 1.45
Xuxa DH-XUX-76 233.5 234.1 0.6 PG_Li 0.74
Xuxa DH-XUX-77 211.2 213.2 2.1 PG_Li 1.87
Xuxa DH-XUX-77 243.2 256.4 13.2 PG_Li 1.68
Xuxa DH-XUX-78 210.0 218.6 8.1 PG_Li 2.06
Xuxa DH-XUX-78 218.7 221.4 2.6 PG_Li 1.22
Xuxa DH-XUX-78 222.3 22.8 0.5 PG_Li 1.73
Xuxa DH-XUX-78 223.8 231.5 7.8 PG_Li 1.71
Xuxa DH-XUX-78 248.0 248.7 0.7 PG_Li 0.04
Xuxa DH-XUX-78 269.2 271.0 1.8 PG_Li 0.74
Xuxa DH-XUX-79 78.6 80.4 1.7 PG_Li 1.16
Xuxa DH-XUX-79 97.4 104.9 7.5 PG_Li 1.35
Xuxa DH-XUX-80 195.0 196.5 1.5 PG_Li 1.26
Xuxa DH-XUX-80 197.0 200.2 3.2 PG_Li 2.30
Xuxa DH-XUX-80 202.6 205.0 1.6 PG_Li 1.45
Xuxa DH-XUX-80 206.1 207.1 1.0 PG_Ab_Q 0.41
Xuxa DH-XUX-80 209.7 210.2 1.1 PG_Li 0.35
Xuxa DH-XUX-81 160.6 162.7 2.1 PG_Li 1.28
Xuxa DH-XUX-82 207.7 216.3 8.5 PG_Li 1.13
Xuxa DH-XUX-82 224.5 225.9 1.4 PG_Li 0.81
Xuxa DH-XUX-82 242.0 244.3 2.3 PG_Ab_Q 0.45
Xuxa DH-XUX-83 175.7 183.1 7.4 PG_Li 1.41
Xuxa DH-XUX-84 34.3 37.9 3.6 PG_Ab_Q 0.85
Xuxa DH-XUX-85 195.4 209.2 13.8 PG_Li 1.33
Xuxa DH-XUX-86 48.9 52.1 3.2 PG_Ab_Q 1.04
Xuxa DH-XUX-87 271.8 273.4 1.5 PG_Li 1.35
Xuxa DH-XUX-87 292.8 294.3 1.5 PG_Li 1.30
Xuxa DH-XUX-87 294.9 296.2 1.3 PG_Li 1.40
Xuxa DH-XUX-88 202.7 222.9 20.2 PG_Li 1.84
Xuxa DH-XUX-88 223.4 227.0 3.6 PG_Li 1.63
Xuxa DH-XUX-90 273.6 285.4 11.8 PG_Li 1.58
Xuxa DH-XUX-90 293.3 353.2 59.9 PG_Li 1.72
(1) The intervals reported in this table represent drill intercepts and insufficient data is available at this time to state the true
thickness of the mineralized intervals
Quality Control
QA/QC program involving blank samples (4% of the sampling stream), standard samples (4% of the sampling stream) and field
duplicates (6% of the sampling stream) has been established during sampling. A further 6% of the mineralized samples will
also be sent to the ALS Laboratory in Vancouver, British Columbia for pulp duplicates once the campaign is over. All assays
are analyzed at SGS’s Belo Horizonte laboratory using a multi-elements peroxide fusion ICP-AES on half-core 1 kg sample
selected by geologist.
About Sigma Lithium Corp.
Sigma Lithium Corporation is developing a world class lithium hard rock deposit with high grade and exceptional mineralogy at
its Grota do Cirilo property in Minas Gerais Brazil. Sigma commissioned its Phase I production plant and has commenced the
production of battery grade spodumene concentrate from its high-quality deposits. Sigma’s corporate mission is to execute its
strategy while embracing environmental, social, and governance principles. The Corporation is on track to become an ultra-
high quality spodumene concentrate supplier to the lithium battery industry worldwide.
Sigma shareholders include some of the largest ESG (environmental, sustainability, governance) focused institutional investors
in the world. Sigma plans to commence construction of a commercial-scale lithium concentration plant in 2019, becoming a
fully-operational sustainable lithium producer in 2020.
Sigma, through its subsidiaries, has 28 mineral rights in four properties spread over 188 km2 and 18,887 hectares - with over
200 lithium bearing pegmatites and 11 former historical lithium mines. The Grota do Cirilo property, Sigma’s primary focus,
includes 10 mining concessions (mining production authorizations).
Sigma has a NI 43-101 technical report on the Grota do Cirilo property prepared by SGS, which includes estimated measured
and indicated resources of approximately 12,900,000 tonnes for its main deposit (8,502,000t measured and 4,385,000t
indicated), with a high average grade of 1.56% (for approximately 500,000t of LCE). The technical report also includes
estimated inferred resources of 608,348t and further notes the potential for significant resource expansion.
Qualified Person
The resources estimates in this news release are included in (and the estimated LCE is derived from the resource estimates
included in) the technical report titled “Technical Report Northern and Southern Complexes Project, Araçuai and Itinga, Brazil,
Sigma Lithium Resources Inc.” which has an effective date of January 29, 2018 and was prepared by Marc-Antoine Laporte,
P.Geo, M.Sc. of SGS. Mr. Laporte is a qualified person as defined by NI 43-101 and is independent of Sigma. The report is
available at www.sedar.com. Mr. Laporte has also reviewed and approved the scientific and technical information in this news
release.
For additional information please contact:
Sigma Lithium Resources Corporation / www.sigmalithiumresources.com
Company Contact:
Ana Cabral
Vice – Chairman
Director of Business Development and Investor Relations
55 11 2985-0089
Investor Contact:
KCSA Strategic Communications
Valter Pinto / Scott Eckstein
(212) 896-1254
FORWARD-LOOKING STATEMENTS
This news release contains forward-looking statements relating to the objectives of the Corporation, the potential for increased
resources, concentration plant construction, achieving sustainable production and other statements that are not historical
facts. Readers are cautioned not to place undue reliance on forward-looking statements, as there can be no assurance that
the plans, intentions or expectations upon which they are based will occur. By their nature, forward-looking statements involve
numerous assumptions, known and unknown risks and uncertainties, both general and specific, that contribute to the
possibility that the predictions, forecasts, projections and other forward-looking statements will not occur, which may cause
actual performance and results in future periods to differ materially from any estimates or projections of future performance or
results expressed or implied by such forward-looking statements. These assumptions, risks and uncertainties include, among
other things: the state of the economy in general and capital markets in particular, and investor interest in the business and
future prospects of Sigma.
The forward-looking statements contained in this news release are made as of the date of this news release. Except as
required by law, Sigma disclaims any intention and assumes no obligation to update or revise any forward-looking statements,
whether as a result of new information, future events or otherwise, except as required by applicable securities law. Additionally,
Sigma undertakes no obligation to comment on the expectations of, or statements made, by third parties in respect of the
matters discussed above.
The key risks and uncertainties that could cause actual results or the material factors and assumptions applied in preparing
forward-looking information to differ materially from predictions, forecasts, projections, expectations or conclusions are
discussed in the “Risk Factors” section of Sigma’s Filing Statement dated April 25, 2018. We caution that the foregoing list
is not exhaustive of all possible factors.
For more information on the risks, uncertainties and assumptions that could cause our actual results to differ from current
expectations, please refer to our public filings available at www.sedar.com.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the
TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this news release.