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Monument Announces Updates at the Selinsing Gold Mine

Corporate Updates

May 28, 2019 News Release Release #04- 2019

Monument Announces Updates at the Selinsing Gold Mine

Vancouver, B.C. Monument Mining Limited (TSX -V: MMY and FSE: D7Q1) (“Monument” or the “Company”)

is pleased to provide updates at the Selinsing Gold Mine , 100% owned by Monument, including: current oxide

production, tailings storage facility development, preparations for the Selinsing Sulphide Project, and exploration.

Current Oxide Production

Monument’s current gold production is from its remaining oxide gold ore inventory, including stockpiled super

low-grade oxide ore, old tailing materials, oxide ore from Buffalo Reef and transition ore from Pit 5/6 at Selinsing.

Preparation is ongoing for a trial mining program at Peranggih Gold Prospect. It is aimed to sustain the current

oxide production before the sulphide production commences.

The Selinsing Gold Mine started oxide gold production in September 2009 and the Mine’s cash flow has supported

strong balance sheet growth with gold and copper -iron portfolios in multiple jurisdictions and development at

Murchison Project in Western Australia.

At Selinsing the reserves and resources have now been fully replaced with a six-year life of mine according to the

feasibility study NI 43-101 Technical Report titled “Selinsing Gold Sulphide Project - NI 43-101 Technical Report”

issued by Snowden Minin g Industry Consultants Pty Ltd. on January 31 2019 and filed on Sedar. The economic

viability of the project described in the Feasibility Study is primarily driven by adding flotation and BIOX®

processes to the current Selinsing Gold Processing Plant to treat sulphide ore.

Tailings Storage Facility Development

Included in the Selinsing Sulphide Project ’s capital expenditure projection is development of the tailings storage

facility (“TSF”). The construction of the TSF is comprised of three separate embankments, the Main Embankment,

the Saddle Dam and the South Dam with a total length of 1,500m and a height of 33m.

SRK Consulting submitted a detailed design of the TSF expansion to Monument for review, including the basis of

design, spring water management, embankment design, stability assessment and surface water management. Based

on this, the Company has carried out the first phase of TSF upgrade work at the main embankment, to raise the wall

level from 531.0mRL to 533.3mRL allow ing for 2.3m beach freeboard. This will provide an additional tailing

capacity up to June 2020 to support gold production at the current oxide processing plant.

The TSF upgrade work to date has completed c onstruction of the new spring water management system and 80%

completion of construction on the TSF main embankment with installation of various seepage channels, excavating

the stream diversion, removal of unwanted materials and backfilling. The entire work is expected to be completed

in July 2019.

The next embankment raise will be required once the sulphide project is initiated and it is estimated the embankment

will need to be raised to 540mRL for the life of sulphide plant production. Photos of the TSF development

construction can be found in the photo gallery at the Company’s corporate website at www.monumentmining.com.

Preparations for Sulphide Gold Production

Selinsing sulphide gold production is Monument’s top priority. The Company continues preparation based on the

Execution Plan to commence construction subject to project funding , including documentation, procurement,

Bioleaching training through a pilot plant, and laying the ground work for the transition from oxide gold production

to sulphide gold production at Selinsing.

Work proceeded on the technical and financial evaluation of processing equipment proposals. Site meetings were

held with potential equipment vendors and proposals were received for extending the scope of supply to include

ancillary equipment.

Equipment specifications w ere prepared for the proposed pilot plant including the crusher, ball mill, pumps,

cyclone, rougher and cleaner flotation cells, and reagent mixing and dosing pumps. Requests for quotations were

prepared for distribution to suitable local equipment vendors and fabricators. Conversion of the existing Intec pilot

plant to use as the bioleach test facility was initiated. The project team continues to optimize costs including

expected maintenance and reagent consumptions to lower operating cost estimates and so urce local equipment to

lower capital cost estimates.

Further bioleach batch amenability tests (BAT) were conducted by the Selinsing R&D team using locally adapted

bacteria. The tests achieved up to 98% oxidation on samples of Buffalo Reef concentrates wi th up to 97% gold

leachability from the resulting bio-oxidation residues. The bioleach tests were conducted as training exercises for

metallurgists and technicians to have better understanding of how the bioleach process works and essential

parameters to be monitored.

Staff training included members of the Sulphide Project team participat ing in the bi-annual Outotec BIOX® user

Conference held in the Philippines. Two days of presentations were heard with delegates representing BIOX®

operations and projects in Australia, South Africa, Kazakhstan, Russia, Philippines , Zimbabwe and Malaysia. A

site visit was also made to FCF Minerals Runruno BIOX® Gold operation.

Exploration

Near Mine Exploration: At the Selinsing and Buffalo Reef deposits, sulphide mineralization is still open down dip,

down plunge and along strike. Monument plans to follow -up with drilling programs at the Selinsing and Buffalo

Reef deposits focused on adding resources and defining preferentially sulphide mineralization at d epth below and

around the existing pits within gap zones in between the known resources that contain little drill hole information,

through extension drilling for Buffalo Reef, and to investigate underground opportunities with deep drilling at

Selinsing Pits and extensions to the south. A diamond drilling program was initiated at the Selinsing Pit IV west

wall and 14 holes were drilled for a total of 681m out of a proposed 1,000m has been completed and awaiting assay

results.

Metallurgical Drilling: A metallurgical RC drilling program has been initiated for collecting samples at Pit 5/6 to

further test recoverability of transitional ore in parallel with mining production in this area. The transitional ore

mined shows visible gold with higher grade than expected in certain areas.

Regional Exploration: As a part of the Selinsing regional exploration program, soil sampling continues and focused

on the prioritized Peranggih/Panau area, initially at the Panau South target, which was completed with 202 primary

samples collected and 24 samples were collected at Panau North. The access road to Panau East was surveyed,

repaired, and sampling was continued with 31 samples collected. All samples are being sent to an independent

laboratory in Western Australia for analysis. Regional exploration is targeting larger strategic development areas

surrounding the Selinsing Gold Mine, aimed to test regional resource potential. The current target areas have been

selected for sampling and assaying including additional sections at Peranggih and Panau. The soil sampling results

could lead to identifying further regional drilling targets.

About Monument

Monument Mining Limited (TSX-V: MMY, FSE: D7Q1) is an established Canadian gold producer that owns and

operates the Selinsing Gold Mine in Malaysia. Its experienced management team is committed to growth and is

advancing several exploration and development projects inclu ding the Mengapur Copper -Iron Project, in Pahang

State of Malaysia, and the Murchison Gold Projects comprising Burnakura, Gabanintha and Tuckanarra in the

Murchison area of Western Australia. The Company employs approximately 195 people in both regions and is

committed to the highest standards of environmental management, social responsibility, and health and safety for

its employees and neighboring communities.

Cathy Zhai, President and CEO

Monument Mining Limited

Suite 1580 -1100 Melville Street

Vancouver, BC V6E 4A6

FOR FURTHER INFORMATION visit the company web site at www.monumentmining.com or contact:

Richard Cushing, MMY Vancouver T: +1-604-638-1661 x102 [email protected]

Wolfgang Seybold, Axino GmbH T: +49 711-82 09 7211 [email protected]

"Neither 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."

Forward-Looking Statement

This news release i ncludes statements containing forward -looking information about Monument, its business and future plans (“forward -

looking statements”). Forward -looking statements are statements that involve expectations, plans, objectives or future events that are not

historical facts and include the Company’s plans with respect to its mineral projects and the timing and results of proposed pro grams and

events referred to in this news release. Generally, forward-looking information can be identified by the use of forward-looking terminology

such as "plans", "expects" or "does not expect", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", " anticipates" or

"does not anticipate", or "believes", or variations of such words and phrases or state that cer tain actions, events or results "may", "could",

"would", "might" or "will be taken", "occur" or "be achieved". The forward -looking statements in this news release are subject to various

risks, uncertainties and other factors that could cause actual results or achievements to differ materially from those expressed or implied by

the forward-looking statements. These risks and certain other factors include, without limitation: risks related to general business, economic,

competitive, geopolitical and social u ncertainties; uncertainties regarding the results of current exploration activities; uncertainties in the

progress and timing of development activities; foreign operations risks; other risks inherent in the mining industry and other risks described

in the management discussion and analysis of the Company and the technical reports on the Company’s projects, all of which are available

under the profile of the Company on SEDAR at www.sedar.com. Material factors and assumptions used to develop forward -looking

statements in this news release include: expectations regarding the estimated cash cost per ounce of gold production and the estimated cash

flows which may be generated from the operations, general economic factors and other factors that may be beyond the control of Monument;

assumptions and expectations regarding the results of exploration on the Company’s projects; assumptions regarding the future price of

gold of other minerals; the timing and amount of estimated future production; the expected timing and results of development and exploration

activities; costs of future activities; capital and operating expenditures; success of exploration activities; mining or proc essing issues;

exchange rates; and all of the factors and assumptions described in the management discussion and analysis of the Company and the technical

reports on the Company’s projects, all of which are available under the profile of the Company on SEDAR at www.sedar.com. Although the

Company has attempted to identify important factors th at could cause actual results to differ materially from those contained in forward -

looking statements, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance

that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such

statements. Accordingly, readers should not place undue reliance on forward-looking statements. The Company does not undertake to update

any forward-looking statements, except in accordance with applicable securities laws.