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RIO2 Limited Provides Update of Prefeasibility Study Progress FOR the Fenix GOLD Project, Chile

Corporate Updates

RIO2 LIMITED PROVIDES UPDATE OF PREFEASIBILITY STUDY PROGRESS

FOR THE FENIX GOLD PROJECT, CHILE

For Immediate Release July 15, 2019

Rio2 Limited (“ Rio2” or the “Company ”) (TSXV: RIO ; OTCQX: RIOFF; BVL: RIO ) announces that the

results of the updated prefeasibility study, ( “PFS”) for its 100% owned Fenix Gold Project ( “Fenix

Gold” or the “Project”) located in the Atacama Region, Chile, have been delayed slightly and are now

expected to be released as soon as possible during the month of August.

The updated PFS is being completed by a highly skilled and experienced group of engineering

consultants that are based in Lima, Peru, in close cooperation with Rio2’s technical team. The

engineering consultants include HLC Ingeniería y Construcción (metallurgical review, process design

and site layout), Anddes Asociados (civil design and geotechnical review), each of whom were involved

in the engineering design and construction of both the La Arena and Shahuindo gold mines located in

Peru. Input to the contract mining and civil construction aspects of the updated PFS will be provided

by STRACON who were the mining alliance partners of Rio Alto Mining Limited at both La Arena and

Shahuindo. Mining Plus will undertake pit optimization, mine design and mine scheduling activities

and assist with the compilation of the technical report related to the updated PFS.

The updated PFS is strategically focused on an optimally configured starter project which will facilitate

the shortest possible timeline to construction/production, a lower initial capex, higher grades initially

being mined, and a lower initial strip ratio as compared with the 2014 PFS.

Mr. Enrique Garay, MSc. P.Geo (AIG Member), Senior Vice President Geology of Rio2, is the Qualified

Person (as defined by NI 43-101) responsible for managing the Company's exploration programs and

disclosure of drilling results. Mr. Garay has read and approved the scientific and technical information

in this news release.

Forward-Looking Statements

Certain statements contained herein constitute forward-looking statements, most particularly the

timing for the completion of the updated PFS; the suitability of the Fenix Gold Project for staged

development, including a smaller starter project; the potential for the characteristics of the smaller

starter project to include lower initial capex, initial mining of higher grade ore and a lower strip ratio,

all as compared to the 2014 PFS. All statements included herein, other than statements of historical

fact, are forward-looking information and such information involves various risks and uncertainties.

Rio2 believes the expectations reflected in these forward-looking statements are reasonable, but no

assurance can be given that these expectations will prove to be correct and such forward-looking

statements in this news release should not be unduly relied upon. A description of assumptions used

to develop such forward-looking information and a description of risk factors that may cause actual

results to differ materially from forward-looking information can be found in Rio2's disclosure

documents on the SEDAR website at www.sedar.com. Forward-looking statements included in this

news release are made as of the date of this news release and Rio2 disclaims any intention or

obligation to update or revise any forward-looking statements, whether as a result of new information,

future events or otherwise, except as expressly required by applicable securities legislation.

To learn more about Rio2 Limit ed, please visit: www.rio2.com or Rio2's SEDAR profile at

www.sedar.com.

ON BEHALF OF THE BOARD OF RIO2 LIMITED

Alex Black

President, CEO & Director

Tel: +1 (604) 260-2696

Email: [email protected]

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

release.