Mr. David Sidoo reports

ADVANTAGE LITHIUM REPORTS INITIAL PUMP TEST AVERAGING 678 MG/LITRE FROM CAUCHARI JV PROJECT

Advantage Lithium Corp. has made further positive progress with its Cauchari joint venture drilling program, where three drill rigs are now expanding the depth and lateral extent of the existing National Instrument 43-101 mineral resource dated December, 2016.

Initial results from the first set of composite brine samples from hole CAU10 in the southeast sector have returned an average lithium grade of 678 milligrams per litre, with sample results ranging from 585 milligrams per litre to 724 milligrams per litre lithium and excellent magnesium-lithium ratios averaging 2.1:1. These initial 17 samples were collected as part of a preliminary pumping test conducted on the hole; a second set of samples from this hole are due later this month. Systematic double-packer sampling of individual filter sections will proceed shortly over the total 340-metre depth of the developed well.

Meanwhile, the second rotary drill rig has completed hole CAU09, also in the southeast sector, approximately 2.5 kilometres from CAU10. Filter and casing sections along with gravel pack have been installed to the 400-metre depth limit of the hole. Cleaning and development are under way prior to a preliminary pumping test and sampling scheduled for the next few days.

The third drill rig, a diamond drill machine, is currently set up on hole CAU07 in the northwest sector of the property where a rotary precollar to 130 metres was completed as planned in May, 2017. CAU07 will be cored at HQ diameter to a planned target depth of 400 metres to provide sample for porosity and other aquifer measurements. Brine samples will be collected using a packer or bailer system at intervals down the hole.

President and chief executive officer David Sidoo said: "We are pleased to have completed the first holes of the program, working on site during the difficult winter period. The initial assay results from CAU10 are most encouraging, and we look forward over the next few weeks to more results from the systematic sampling of CAU10 and the other holes in the program."

Drilling progress:

• Rotary hole CAU10 has been developed and constructed with filter sections to 340-metre depth. Samples collected during a preliminary pump test returned an average lithium grade of 678 milligrams per litre; further results from this pump test will be available later this week. The results from this well are consistent with the lithological sequence intersected in the halite (salt) core of the Cauchari salar. Initial packer test results are expected in October. The rig has now mobilized farther south to CAU08.
• Rotary hole CAU09 was completed on Sept. 5 to the 400-metre target depth at a diameter of 12 inches. The initial pilot hole was subsequently reamed out to accommodate installation of eight-inch filter/casing sections in the upper section of the hole. Preliminary pump and sampling tests will begin shortly, with initial results expected this month. This will be followed by systematic double-packer sampling of individual filter sections. Packer sample results are expected in October.
• A diamond drill rig was mobilized to site on Aug. 25, initially collaring 12-metre cemented surface casings on exploration holes in the southeast sector.
• The diamond drill rig has now moved on to hole CAU07 in the northwest sector of the property where drill core is being collected from sediments below the Archibarca alluvial fan, a key target of the Cauchari joint venture exploration program. An initial double-packer sample was taken at a depth of approximately 180 metres, with additional sampling as the hole advances. Packer sampling results are expected in October.
• All five rotary holes in the work program are expected to be completed and sampled before year-end 2017 along with approximately five of the up to 12 diamond drill holes designed as monitoring and/or exploration holes. Drilling of the remaining exploration holes will continue in 2018.

Senior appointments

The company is also pleased to welcome senior additions to the company's technical team as follows:

• Andy Robb joins as technical adviser, projects. Mr. Robb brings significant senior technical and management depth to the Cauchari joint venture. In addition to senior roles with BHP Billiton and AMC Consulting, during the period from 2013 to 2016, Mr. Robb was vice-president, South America, and project director for Enirgi Group Corp. In this role, Mr. Robb had responsibility for over 200 operational and project staff and was instrumental in the completion of the NI 43-101-compliant definitive feasibility study for the Rincon lithium brine project located in Salta. Following his leadership/supervision of successful exploration campaigns (drilling and pump testing) over the study period 2013 to 2015, measured and indicated resources increased significantly to 3.5 million tonnes lithium carbonate equivalent (plus inferred resource to 4.8 million tonnes Lithium carbonate equivalent) for the project with nameplate capacity of 50,000 tonnes of lithium carbonate equivalent per year. As the company moves into 2018, Mr. Robb will play a key role in advancing its project through the scoping study and future engineering phases of development.
• Frits Reidel, principal of the consulting firm FloSolutions, has been commissioned to provide continuing assistance to the company as its independent qualified person to ensure industry best practice related to drilling, testing, sampling and related quality assurance/quality control procedures on the current Advantage Lithium exploration program, which will lead to an updated mineral resource estimate in early 2018. Based in Santiago, Chile, Mr. Reidel and his team have vast experience in brine resource evaluation, including the practicalities of salt lake exploration, hydrogeology, drilling methods, well construction and testing, gained from working on numerous projects (for examples, Olaroz, Cauchari (Lithium Americas), and Maricunga) in the Lithium Triangle of Argentina and Chile since 1992. Mr. Reidel is a qualified person and independent of Advantage Lithium as defined under NI 43-101.

Mr. Sidoo said: "With the addition of Andy and Frits to our current team, we have added senior expertise with demonstrated success in developing large-scale lithium projects. We welcome Andy and Frits to the Advantage Lithium team, where we look forward to working together to develop the Cauchari lithium project. This project in the heart of the Lithium Triangle is located between the producing Olaroz lithium plant and the predevelopment lithium project of Lithium America and has excellent potential to be developed in association with Orocobre or independently."

The technical information in this news release has been reviewed and approved on behalf of the company by Murray Brooker, MAIG, RPGeo, a qualified person as defined in NI 43-101.

About Advantage Lithium Corp.

Advantage Lithium is a resource company specializing in the strategic acquisition, exploration and development of lithium properties and is headquartered in Vancouver, B.C. The company has acquired a 100-per-cent interest in five projects in Argentina and up to a 75-per-cent interest in a sixth, called Cauchari. Cauchari is located just 20 kilometres south of Orocobre's flagship Olaroz lithium facility.

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