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Rock Tech Assays More High Grade Lithium Oxide in Channel Samples in Georgia Lake

Exploration Programs Sampling & Geoscience Results

Rock Tech Assays More High Grade Lithium Oxide in Channel Samples in

Georgia Lake

VANCOUVER, April 20, 2017 /CNW/ - Rock Tech Lithium Inc. (the "Company" or "Rock Tech") (TSX-V:

RCK; Frankfurt: RJIB) is pleased to announce additional channel sample assay results from its recently

completed exploration program at its 100%-owned Geo rgia Lake lithium property in the Thunder Bay

Mining District of Northwest Ontario, Canada.

The assay results are from channel samples taken fr om the Aumacho pegmatite, and are the highest

grade results to date for this channel sampling program. Three (3) channels were cut and eighteen (18)

samples taken.

Rock Tech's CEO, Martin Stephan, commented, "The ch annel sample assay results from the Aumacho

area are exceptional, showing grades up to 4.42% lithium oxide, the highest grades encountered to date .

We have completed just three drill holes and four channel samples at Aumacho since acquiring the

Georgia Lake property as the majority of our investment was aimed at confirming historic resources in the

Nama Creek area and upgrading these to NI 43-101 st andards. Further exploration work here is certainly

warranted as the Aumacho area represents excellent potential for increased lithium resources."

The exploration program targeted nine (9) of the kn own lithium-bearing pegmatite occurrences and has

expanded on the wealth of knowledge obtained throug h past exploration programs that led to the

Company's National Instrument ("NI") 43-101 resourc e estimate.

The purpose of the channels was to gain information on the location of the pegmatites on surface and to

aid in drill targeting in the future. Assay result highlights are summarized in the following table:

Channel From (m) To (m) Length (m) Grade (% Li 2O)

AM-16-CH-2 1.02 2.04 1.02 2.13

AM -16 -CH -3 1.06 5.08 4.02 2.93

including 2.04 3.04 1.00 4.42

The Aumacho area of the property consists of three lithium-bearing pegmatites and was the focus of dri ll

programs conducted by various operators in 1955, 1956, 1957 and 2009. In total, forty-one (41) holes

were drilled totalling over 5,460 metres. Based on drill information from 1955-1957, a resource estima te

of 236,775 tonnes grading 1.63% Li2O was delineated (The Northern Miner, 1957). The historical

estimate does not use the categories set out in sections 1.2 and 1.3 of NI 43-101 and a qualified pers on

has not done sufficient work to classify the historical estimate as current mineral resources or miner al

reserves. The Company is not treating the historical estimate as current mineral resources or mineral

reserves. Rock Tech drilled three holes totalling 200 metres in 2010 and completed one channel for

sampling in 2011. The drill holes were designed to twin historic holes and verify the location of the

spodumene pegmatites at depth to get a better understanding of the geology of these pegmatites and

their lithium oxide grade and rare earth element potential.

The channel samples were analyzed by Actlabs, an IS O 9001:2008 certified analytical laboratory located

in Geraldton, Ontario.

Rock Tech is the only exploration company in the Georgia Lake region with an NI 43-101 resource

estimate. Further, the Company has completed metallurgical testing on a bulk sample demonstrating the

ability to produce both a high-grade spodumene concentrate and battery-grade lithium carbonate

("Li2CO3"). The spodumene-bearing pegmatites of the Georgia Lake area were originally discovered in

1955.

All scientific and technical information in this news release concerning the Georgia Lake lithium prop erty

was reviewed and prepared under the supervision of Locke Goldsmith, P. Eng., P. Geo, an independent

Qualified Person to Rock Tech.

About Rock Tech Lithium:

Rock Tech Lithium is an exploration company focused on acquiring and exploring properties in the field of

lithium and other selected battery metals.

The Company's 100%-owned Georgia Lake lithium prope rty, located northeast of Thunder Bay, Ontario,

has an NI 43-101 indicated resource estimate of 3.19 million tonnes grading 1.10% lithium oxide in

addition to an inferred resource estimate of 6.31 million tonnes grading 1.00% lithium oxide.

To view photos, videos and maps from the ongoing ex ploration program, please use the following link:

http://rocktechlithium.com/ongoing-exploration-program/

On behalf of the Board of Directors of the Company,

"Martin Stephan"

Martin Stephan

Director, Chief Executive Officer

Neither TSX Venture Exchange nor its Regulation Ser vices Provider (as that term 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 nature are intended to be, and are hereby identified as, "fo rward ‐

looking statements". Forward ‐looking statements may be identified by words including "anticipates",

"believes", "intends", "estimates", "expects" and similar expressions. The Company cautions readers t hat

forward ‐looking statements, including without limitation those relating to the Company's future operations

and business prospects, are subject to certain risk s and uncertainties that could cause actual results to

differ materially from those indicated in the forward ‐looking statements.

SOURCE Rock Tech Lithium Inc.

View original content with multimedia:

http://www.newswire.ca/en/releases/archive/April2017/20/c5706.html

%SEDAR: 00005870E

For further information: Brad Barnett, Chief Financial Officer, Rock Tech L ithium Inc., 777 Hornby

Street, Suite 600, Vancouver, B.C., V6Z 1S4, Telephone: (778) 358-5200, Facsimile: (604) 670-0033,

Email: [email protected]

CO: Rock Tech Lithium Inc.

CNW 07:00e 20-APR-17