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Rock Tech Engages ALS for Pilot Plant Programs

Metallurgy & Processing

Rock Tech Lithium Inc.

600-777 Hornby Street | Vancouver | British Columbia | Canada | V6Z 1S4

P. +1.778.358.5200 | F. +1.604.670.0033

www.rocktechlithium.com | [email protected]

TSXV: RCK | Frankfurt: RJIB

Rock Tech Engages ALS for Pilot Plant Programs

Vancouver, BC, Canada – February 16, 2021 – Rock Tech Lithium Inc. (the "Company" or

“Rock Tech”) (TSX-V: RCK; Frankfurt: RJIB) is pleased to announce that it has engaged ALS

Metallurgy (“ALS”) to conduct pilot scale test programs, under supervision from Wave

International (“Wave”).

To confirm its lithium hydroxide flowsheet and process engineering parameters, in support of

engineering development, a series of pilot scale tests will be completed for both the industry

standard sulphate process and Rock Tech’s innovative and patent-pending Nitrate Process.

ALS have been awarded the first stage of the pilot program, which is based on a traditional

sulphation route process flowsheet provided by Wave. The feed source for this stage one pilot

will be lithium sulphate (from various sources), demonstrating the robustness of the proposed

plant to receive intermediary lithium products (other than spodumene concentrate).

The pilot program was commenced last week at ALS’ facilities in Perth, Western Australia,

under supervision and management by Wave. The program will not only validate the commercial

scale flowsheet as outlined above but will also provide a first round of Battery Grade Lithium

Hydroxide Monohydrate sample material for ongoing offtake discussions.

ALS is a leading testing, inspection, certification and verification company headquartered in

Brisbane, Australia, that has built its reputation around technical innovation, quality, a deep

client understanding, and by being a true technical services partner to many companies across a

broad spectrum of end markets covering most geographies. ALS provides vital process flowsheet

operating data for engineering design, scale-up purposes, process plant upgrade and production

of marketing samples. Further, ALS have previously completed various Lithium Hydroxide

testwork programs.

Future pilot plant stages will include a second round pilot for the traditional route (producing

lithium hydroxide from spodumene concentrates), and a further pilot of the innovate patent-

pending Nitrate Process. The future stages will include spodumene feed from the Company’s

100%-owned Georgia Lake lithium project in Ontario, Canada, in addition to feed secured from

existing and emerging producers.

Rock Tech Lithium Inc.

600-777 Hornby Street | Vancouver | British Columbia | Canada | V6Z 1S4

P. +1.778.358.5200 | F. +1.604.670.0033

www.rocktechlithium.com | [email protected]

TSXV: RCK | Frankfurt: RJIB

“We are planning a lithium hydroxide converter with a capacity of 24,000 tonnes per annum so

we will rely, to a certain extent, on additional sources to complement our Georgia Lake feed,”

said Dirk Harbecke, Rock Tech’s chairman. “As such, understanding the behaviour of a variety

of different feed sources will be invaluable for optimizing process design. Importantly, the pilot

programs will provide lithium hydroxide samples which are invaluable for customer

qualification as offtake discussions intensify.”

Additionally, the Comp any announces that it has granted 1,480,000 stock options to directors,

officers, employees and consultants of the Company. The stock options have an exercise price of

$4.21 per share and will expire on February 16, 2023.

On behalf of the Board of Directors,

"Dirk Harbecke"

Dirk Harbecke

Chairman

For further information, please contact:

Brad Barnett

Chief Financial Officer

Rock Tech Lithium Inc.

777 Hornby Street, Suite 600

Vancouver, B.C., V6Z 1S4

Telephone: (778) 358-5200

Facsimile: (604) 670-0033

Email: [email protected]

Neither TSX Venture Exchange nor its Regulation Services Provider (as that te rm is defined in the policies of the TSX Venture

Exchange) accepts responsibility for the adequacy or accuracy of this release.

Statements included in this announcement, including statements concerning our plans, intentions and expectations, which are not

historical in natur e are i ntended to be, and are hereby identified as, "forward‐looking statements". Forward ‐looking statements

may be identi fied by words including "anticipates", "b elieves", "intends", "estimates", "expects" and si milar expressions. The

Company cautions r eaders that forward‐looking statements, including wi thout limitation those relating to the Company's future

operations and business prospects, are subject to certain risks and uncertainties that could cause actual results to differ materially

from those indicated in the forward‐looking statements.