Monument Announces Updates at the Selinsing Gold Mine and Murchison Gold Project

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Monument Mining
Monument Mining

VANCOUVER, British Columbia, Dec. 09, 2024 (GLOBE NEWSWIRE) -- Monument Mining Limited (TSX-V: MMY and FSE: D7Q1) (“Monument” or the “Company”) announces progress updates at the Selinsing Gold Mine in Malaysia and at the Murchison Gold Project in Western Australia.

President and CEO Cathy Zhai commented, “We are pleased with the continued progress at the Selinsing Gold Mine to optimize the gold treatment plant, especially the bigger filter press to be installed to enhance the production respectively in mid-January 2025. Additionally, we are excited to announce the resumption of development work at the Murchison Gold Project.”

Selinsing Update

Figure 1: Selinsing Flotation Plant

Figure 1
Figure 1


Figure 1 is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/1bbf8610-a5d5-4209-952e-a996fc89093e

The Company continues to improve operational efficiencies and effectiveness at Selinsing Gold Mine through removal of certain bottlenecks from the processing plant and improvements of mining cycle harmonization.

Plant Process Improvements

Numerous improvements were made in the flotation circuit to help improve recovery. The addition of soda ash continued as pH modifier and bulk orders were initiated for delivery to the repurposed lime silo to facilitate better pH control during the processing of partially oxidised transition ore. Measurement and control of the oxidation – reduction potential (ORP) was implemented by the precise dosing of sodium sulphide. Froth stability was improved by the introduction of ethylene glycol frother. Flotation recoveries have improved in October with a reconciled 87.2% reported for the month and over 90% achieved for some of the fresh ores processed. The antimony content of the Buffalo Reef ore has proved to be higher than expected and stibnite recovery has been enhanced by the addition of lead nitrate. Improved payabilities have been realized with the high levels of antimony in the flotation concentrate.

The performance of the filter press improved with better concentrate quality, pH adjustment in the concentrate surge tank and replacement of filter plates. Eight new filter plates from the manufacturers McLanahan were installed on the filter press and the local repair of worn plates continued. Worn-out filter cloths were replaced as required.

A bigger capacity filter press was designed and built by a major manufacturer and was delivered to site, installation has been scheduled and expected to be completed in early January 2025, pending completion of all civil works that commenced in September 2024. Up to date procurement of associated new ancillary equipment is in progress with long lead items being ordered. Concrete was poured for the extension to the air services building, air receivers, filter feed tank and filter press bunker. The air compressor, air receivers and dryer were delivered to site and installed. The filter feed tank was fabricated on site and lifted into position. The powerline and various pipelines were rerouted away from the footprint of the new filter press to allow excavations to be completed and foundation work to progress.