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Riverside Resources Defines Porphyry Copper Targets at the 100% Owned Ariel Copper Project in Sonora, Mexico

Exploration Programs

Riverside Resources Defines Porphyry Copper Targets at the 100% Owned

Ariel Copper Project in Sonora, Mexico

VANCOUVER, British Columbia, April 05, 2018 -- Riverside Resources Inc. ("Riverside" or the "Company") (TSX-V:RRI)

is pleased to provide an update on the Ariel Copper Project (the “Project”) which comprises a 1,242-hectare mining concession

located in northeastern Sonora, along the most productive copper belt in Mexico. Riverside holds 100% of the mineral rights to

the concession and has conducted generative exploration work, which was funded through the exploration  alliance with

Antofagasta (see press release February 29, 2016). The Project covers an extensive zone of hydrothermal alteration,

measuring 2.8 km in length by up to 1.9 km wide. The western half of the Ariel claim covers an extensive zone of porphyry

copper style rock alteration that is now being explored by Riverside. The Ariel Project represents one of a number of

prospective copper projects that Riverside will continue to work up and explore new potential joint-venture partnerships.

A reconnaissance exploration program performed by Riverside outlined alteration zones potentially related to porphyry copper

mineral systems with drill target areas defined. The Ariel Project is located within a development rich copper district,

surrounded by major Mexican copper mines in the Laramide copper belt of Sonora. In February of 2016, Riverside won the

right to stake the Ariel Copper Project in a lottery that was competitive with other major copper companies competing to stake

the Project. Riverside continues to work up Ariel and welcomes joint-venture partnerships to further advance the Project for the

next phases of work.

Riverside’s President and CEO, John-Mark Staude, stated: “We are pleased that results of our reconnaissance fieldwork

at Ariel are supportive of the possible existence of porphyry copper mineralization. Riverside continues to build upon our

alliance funded work to expand the targets defined. The Project, which was acquired through claim staking at minimal cost, is

ready for follow-up exploration programs. Riverside continues to progress with the Project Generator business model and uses

our team of experienced geologists to acquire and work up highly prospective assets.”

Click here to see Figure 1: Map of the Ariel Copper Project with Targets

The Ariel concession and alteration system occurs along the southeastern trend of the Arizona-Sonora porphyry copper

province where over 20 porphyry-related copper-molybdenum deposits have been mined for decades, including the world-class

Cananea and La Caridad deposits. Additionally, the Mariquita, Maria, Milpillas, Pilares and other copper centers in this trend

in Sonora, Mexico have been mined and show strong potential of high-grade hypogene and supergene copper mineralization. 

Additional Project Details:

The area was identified through Riverside’s generative work using satellite image analysis, the Company’s mineral databases,

mapping and geochemical surveys. This work was sponsored through a past exploration alliance, identifying widespread iron

oxide and clay alteration at the Project, which was then followed up with field exploration. Some 293 rock samples were

collected and analyzed for trace metal contents using a portable X-ray fluorescence instrument as well as a mineral analyzer

that employs near infra-red spectrometry to identify minerals typically formed by hydrothermal processes. An additional 120

samples were analyzed using only the spectral analyzer. Rock samples that yielded anomalous base metal readings using

the XRF instrument were subsequently sent for geochemical analysis by a certified assay laboratory and found to contain

copper as well as other elements consistent with a porphyry copper target. 

Riverside’s mapping program identified altered porphyritic intrusive and volcanic rocks that are interpreted to be Laramide-age

rocks (late Cretaceous to early Tertiary) comparable in age to lithologies hosting the major Sonoran porphyry copper deposits

found to the northeast of Ariel.  Additionally, quartz tourmaline breccias are characteristic in this area of the Laramide porphyry

Cu districts at Cananea and La Caridad mines immediately to the NW of Ariel. At the Project, the tourmaline veins follow

structures which have copper values and vector toward the target to the west, which is now ready to be drilled in further

exploration. An infra-red spectrometry mineral analyzer was used to defined extensive clusters of samples marked by sericite

and dickite alteration, which are associated with the upper parts of porphyry copper systems and key halo alteration minerals.

The XRF survey shows a small cluster of samples with anomalous copper contents located in the northwestern side of the

Ariel concession where porphyritic intrusive rock, sericite alteration and fault structures were mapped. The faulting, which is

post-mineral resulted in the regional basin and range geomorphology and is interpreted to have displaced porphyry copper drill

targets beneath post-mineral cover. The altered intrusive rock coupled with copper mineralization provides Riverside with an

excellent target for copper porphyry mineralization.

Qualified Person and QA/QC:

The scientific and technical data contained in this news release pertaining to the Ariel Project was reviewed and/or prepared

under the supervision of Ronald Burk, P. Eng., a non-independent qualified person to Riverside Resources Inc. who is

responsible for ensuring that the geologic information provided in this news release is accurate and who acts as a “qualified

person” under National Instrument 43-101 Standards of Disclosure for Mineral Projects.

About Riverside Resources Inc.:

Riverside is a well-funded exploration company that is driven by value generation and discovery. The company has $3,000,000

in cash, less than 45M shares issued and a strong portfolio of gold-silver and copper assets in North America. Riverside has

extensive experience and knowledge operating in Mexico and leverages its large database to generate a portfolio of

prospective mineral properties. In addition to Riverside’s own exploration spending, the Company also strives to diversify risk

by securing joint-venture partnerships and spin-out entities to advance multiple assets simultaneously and create more

chances for discovery. Riverside has additional properties available for option, with more information available on the

Company’s website at www.rivres.com. 

ON BEHALF OF RIVERSIDE RESOURCES INC.

"John-Mark Staude"

Dr. John-Mark Staude, President & CEO

For additional information contact:

John-Mark Staude

President, CEO

Riverside Resources Inc.

[email protected]

Phone:  (778) 327-6671

Fax:  (778) 327-6675

Web:  www.rivres.com

Raffi Elmajian

Corporate Communications

Riverside Resources Inc.

[email protected]

Phone: (778) 327-6671

TF: (877) RIV-RES1

Web: www.rivres.com

Certain statements in this press release may be considered forward-looking information. These statements can be identified

by the use of forward looking terminology (e.g., "expect”,” estimates", "intends", "anticipates", "believes", "plans"). Such

information involves known and unknown risks -- including the availability of funds, the results of financing and exploration

activities, the interpretation of exploration results and other geological data, or unanticipated costs and expenses and other

risks identified by Riverside in its public securities filings that may cause actual events to differ materially from current

expectations. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of

the date of this press release.

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.