Global

ASX ANNOUNCEMENT ASX: GSC

18 July 2016 Geoscience

Sampling Testwork Supports Low Cost Processing

Highlights

• Rock chip sampling confirms potential to leach lithium from the Rhyolite Ridge Lithium-Boron Project

• >90% of lithium recovered from rock chip samples using a weak-acid leach

• Results provide further evidence that the hosted lithium can be extracted without the need for high-cost processing i.e. roasting

  Summary‌‌

  Global Geoscience Limited ("Global" or the "Company") is excited to announce results from the ongoing testing of rock chip samples collected from the Rhyolite Ridge Lithium-Boron project in Nevada. Results from the sampling test work show that >90% of total lithium content can be recovered using a weak-acid digest (leach).

  The rock chip sampling was completed as part of the Company's ongoing exploration program which is focussed on a maiden JORC Resource estimation and metallurgical test work ahead of a decision to commence pre-feasibility study within three to four months.

  Global Managing Director, Bernard Rowe, commented, "Global is thrilled to announce the positive results from the analysis of rock chip samples taken from the Rhyolite Ridge Lithium- Boron Project. The results are extremely encouraging and provide further evidence that the hosted lithium can be extracted using a low-cost leaching process route. The high recovery of lithium (>90%) achieved using a weak-acid leach confirms that the contained lithium is not tightly bound within lithium bearing silicate minerals such as hectorite. This is a significant finding for the Company and has the potential to redefine the economics of mining clay-type lithium deposits.

  Global Geoscience Ltd	Tel: Fax:	+61 (2) 9922-5800 +61 (2) 9922-4004
  ABN 76 098 564 606
  Suite 203, 161 Walker Street	e-mail:	[email protected]
  NORTH SYDNEY NSW 2060	Web:	www.globalgeo.com.au
  AUSTRALIA

  Rock Chip Sampling

  Global recently collected five surface rock chip samples at the Rhyolite Ridge Lithium-Boron Project in Nevada. The five samples were collected from the upper mineralised unit at the south basin and returned results of 1000 to 3000ppm lithium (0.5 to 1.6% Lithium Carbonate Equivalent). These results were reported on 15 June 2016.

  The same samples were re-submitted for further analysis using a range of acid strengths. Total lithium content was determined using a strong, hot 4-acid digestion (ME-MS61). A moderate (ME-MS41) and weak (ME-MS41W) strength acid digestion was then used to compare the relative amount of lithium that can be extracted. Greater than 95% of the total lithium content was recovered using the moderate strength acid and greater than 90% was recovered using weak acid.

  These data indicate that the lithium is relatively easy to liberate from the minerals that make up the sample and that it is not tightly bound within the lattice of lithium silicate minerals such as hectorite.

  Sample Number	Strong Acid1 ME-MS61 Li ppm	Moderate Acid2 ME-MS41 Li ppm	Weak Acid3 ME-MS41W Li ppm	Li Extracted4 by Weak Acid as % of Total Li
  LBR01	1,640	1,650	1,700	100
  LBR02	1,720	1,790	1,790	100
  LBR04	2,670	2,540	2,570	96
  LBR05	1,210	1,220	1,100	91
  LBR06	1,280	1,210	1,260	98

• Strong acid - 4-acid mix, hot, near total digestion of sample

• Moderate acid - 2-acid mix (aqua regia), hot

• Weak acid - weak 2-acid mix, room temperature

• Amount of lithium extracted by weak acid as a proportion of total lithium determined by strong acid

• Future Work

  The Company is currently undertaking an exploration program that is focussed on a maiden JORC Resource estimation and metallurgical test work ahead of a decision to commence pre- feasibility study within three to four months. The program includes:

• RC and Core drilling (confirmation, infill and extension) leading to estimation of a Mineral Resource

• Preliminary metallurgical and process studies

• Surface rock chip sampling (outcrop and trench) over the zone of outcropping mineralisation at the north and south basins

Contacts

Bernard Rowe Darien Jagger

Managing Director Executive Director

Global Geoscience Ltd Cygnet Capital Pty Limited T: (02) 9922 5800 T: (08) 9226 5511

E: [email protected] E: [email protected]

References

Global Geoscience Ltd, 2016a. Company Report titled "Global to Acquire Advanced Nevada Lithium-Boron Project" dated 3 June, 2016.

Global Geoscience Ltd, 2016b. Company Report titled "Global Announces Exploration Target at Nevada Lithium-Boron Project" dated 8 June, 2016

Global Geoscience Ltd, 2016c. Company Report titled "Global Announces High-Grade Rock Chip Results from Nevada Lithium-Boron Project" dated 15 June, 2016

Global Geoscience Ltd, 2016d. Company Report titled "Global completes due diligence and proceeds with Nevada Lithium-Boron Project " dated 4 July, 2016

Competent Persons Statement

The information in this report that relates to Exploration Results and Exploration Targets is based on information compiled by Bernard Rowe, a Competent Person who is a Member of the Australian Institute of Geoscientists. Bernard Rowe is an employee and Managing Director of Global Geoscience Ltd. Bernard has sufficient experience that is relevant to the style of mineralisation and type of deposit under consideration and to the activity being undertaken to qualify as a Competent Person as defined in the 2012 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Bernard Rowe consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

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57 holes targeting boron

South Basin 9 sq km

Exploration Target area 36 previous drill holes

Figure 1. Map of Rhyolite Ridge Lithium-Boron Project. Tenement outline in black, sedimentary basin outline in red. (Map Projection UTM Zone 11, NAD27)