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Monumental Energy Corp. Announces Successful Proprietary Development of Chemicals to Achieve Increased Oil Production and Flow Stability in the Taranaki Basin, New Zealand

Corporate Updates

Monumental Energy Corp. Announces Successful Proprietary Development

of Chemicals to Achieve Increased Oil Production and Flow Stability in the

Taranaki Basin, New Zealand

VANCOUVER, British Columbia--(BUSINESS WIRE)--June 25, 2026--Monumental Energy

Corp. (“Monumental” or the “Company”) (TSX-V: MNRG; FSE: ZA6; OTCQB: MNMRF) is

pleased to announce that, along with its operational partner, New Zealand Energy Corp.

(TSXV:NZ) (“NZEC”) that a crystal engineering chemical formula has been successfully

created to increase oil production and stabilize daily flow rates in the Taranaki Basin, New

Zealand.

Monumental and NZEC engaged Austin, Texas based chemicals company “13 Specialty

Chemicals Ltd.” to create a chemical formula to help increase oil production and stabilize daily

flow rates. 13 Specialty Chemicals Ltd. is a production focused chemistry company specializing

in practical field problems, wells, flowlines, tanks, SWD and water systems. The company has

created many different chemical blends for hundreds of active wells across Texas.

Expected Operational Impact of this priority chemical:

Within 24–48 Hours

• Tanks become pumpable

• Transfer operations resume

Within 7 Days

• Flow conditions are stable

• Reduced interventions needed

Within 30 Days

• Treatment cost optimized

• Performance is predictable

System Overview (Simplified for Field Use):

A. Recovery Treatment (NZ-START)

• Breaks wax/solid structure

• Restores pumpability

B. Flow Maintenance (NZ-FLOW)

• Prevents re-gelling

• Maintains continuous movement

C. Key Advantages of System

• Requires no permanent infrastructure changes

• Uses standard field equipment

• Can be deployed immediately

• Scales from single well to full field

Monumental and NZEC are currently assessing the next steps which include:

1. Confirm pilot locations

2. Finalize formulations with 13 Specialty Chemicals Ltd.

3. Deploy field pilot

4. Optimize for cost and performance

Maximilian Sali, CEO, Director and Founder comments:

“Earlier in the year, Monumental and NZEC contracted 13-Specialty Chemicals Ltd. to

conduct testing on different chemical blends that will help increase production and flow

stability in the crude oil that we see in our basin. I have personally been to this facility and

seen how advanced and organized this company is when creating these specific products to

assist with oil. This new chemical formula is expected to allow the oil to maintain its liquid

state from when its produced at around 38 degree API all the way down to 16 degree API

without creating a waxier product when shipping and also soaking this chemical in the well

bore will allow less wax to build around the pumps and other parts allowing for better and

stronger flow rates and field optimization. As this chemical will be exclusive to Monumental

and NZEC, we are able to monetize this product by selling it to other companies that are

producing in the Taranki basin.”

The Company will provide further updates as the chemical formula is tested and results are

analyzed.

About Monumental Energy Corp.

Monumental Energy Corp. is an exploration company focused on the acquisition, exploration,

and development of properties in the critical and clean energy sectors. The Company is building

a strategic position in New Zealand’s onshore Taranaki Basin, targeting near-term oil production

and longer-term natural gas development.

The Company has a funding agreement with New Zealand Energy Corp. (“NZEC”) targeting

production optimization and workover opportunities across existing fields. The Company also

holds securities of NZEC and a call option and royalty interest related to the Copper Moki wells.

Monumental additionally maintains exposure to the critical minerals sector through a 2% net

smelter return royalty on Summit Nanotech’s interest in the Salar de Turi lithium project in

Chile.

On behalf of the Board of Directors,

/s/ “Max Sali”

Max Sali, CEO and Founder

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 news release.

Forward Looking Information

This news release contains “forward‐looking information or statements” within the meaning of

applicable securities laws, which may include, without limitation, the expected results and

outcomes from the chemical formula, carrying out future work on the Company’s oil and gas

projects, potential additional oil and gas transactions, other statements relating to the technical,

financial and business prospects of the Company, its projects, its goals and other matters. All

statements in this news release, other than statements of historical facts, that address events or

developments that the Company expects to occur, are forward-looking statements. Although the

Company believes the expectations expressed in such forward-looking statements are based on

reasonable assumptions, such statements are not guarantees of future performance and actual

results may differ materially from those in the forward-looking statements. Such statements are

based on numerous assumptions regarding present and future business strategies and the

environment in which the Company will operate in the future, including the price of metals and

the price of oil and gas, the ability to achieve its goals, that general business and economic

conditions will not change in a material adverse manner and that financing will be available if

and when needed and on reasonable terms. Such forward-looking information reflects the

Company’s views with respect to future events and is subject to risks, uncertainties and

assumptions, including the risks and uncertainties relating to the interpretation of exploration

results, risks related to the inherent uncertainty of exploration and cost estimates and the

potential for unexpected costs and expenses and those other risks filed under the Company’s

profile on SEDAR+ at www.sedarplus.ca. While such estimates and assumptions are considered

reasonable by the management of the Company, they are inherently subject to significant

business, economic, competitive and regulatory uncertainties and risks. Factors that could cause

actual results to differ materially from those in forward looking statements include, but are not

limited to, continued availability of capital and financing and general economic, market or

business conditions, failure to secure personnel and equipment for work programs, adverse

weather and climate conditions, risks relating to unanticipated operational difficulties (including

failure of equipment or processes to operate in accordance with specifications or expectations,

cost escalation, unavailability of materials and equipment, government action or delays in the

receipt of government approvals, industrial disturbances or other job action, and unanticipated

events related to health, safety and environmental matters), risks relating to inaccurate geological

assumptions, failure to maintain or obtain all necessary government permits, approvals and

authorizations, failure to obtain or maintain surface access agreements or understandings from

local communities, land owners or Indigenous groups, fluctuation in exchange rates, the impact

of viruses and diseases on the Company’s ability to operate, capital market conditions, restriction

on labour and international travel and supply chains, decrease in the price of lithium, cesium and

other metals, decrease in the price of oil and gas, loss of key employees, consultants, or directors,

failure to maintain or obtain community acceptance (including from the Indigenous

communities), increase in costs, litigation, and failure of counterparties to perform their

contractual obligations. The Company does not undertake to update forward‐looking statements

or forward‐looking information, except as required by law.

Contacts

Max Sali, Chief Executive Officer, Director and Founder

Email: [email protected]

Phone: 1-604-367-8117