flotation : als

flotation : als

ALS is ISO9001 certified and has established a global reputation as leaders in flotation process development and optimisation. Flotation specialists, mineralogists and analytical chemists work to develop successful recovery processing strategies for optimisation of prefeasibility and feasibility studies. ALS provides these services for a range of ores, including:

ALS provides customised bench scale flotation testwork programs in preparation for pilot scale work or as an independent program. Tests may be performed in batch or as a locked-cycle program to predict concentrate recoveries in process plant situations.

A wide range of screening and sample grinding capabilities are available including AG/SAG, ball and rod milling and Ultra-Fine Grinding (UFG). Gravity, leaching and magnetic separation are also available, and dewatering/process water recycle can be investigated.

Specialised flotation cells, from conventional to column flotation technologies, are available including flash flotation cells. Prioritised assay turnaround provides near real-time results allowing operating parameters to be optimised and alternative reagent schemes trialled during continuous pilot plant campaigns.

flotation: the past, present and future of mineral processing? | e & mj

flotation: the past, present and future of mineral processing? | e & mj

As we look to the future, the mining industry faces a myriad of challenges. While demand for metals like copper, cobalt, lithium and iron ore is projected to reach record highs by 2050, ore grades are decreasing, orebodies are becoming more complex, and fewer tier 1 deposits are being discovered.

As metal prices increase, lower-grade orebodies are becoming economically feasible. But, with lower grades come higher tonnages to sustain production. Processing these deposits requires ever finer grinding for mineral liberation and significant flotation residence times. Lower grades mean that quantities of tailings and mine waste generated are also increasing. And, for many operations, their management is now a significant liability.

In many countries, water scarcity is a big constraint, and specific energy consumption and carbon emissions are rising as grades decrease; points that are at growing odds with mining companies efforts in improving their environmental, social and governance (ESG).

Given this backdrop, its pertinent to ask whether traditional beneficiation techniques like flotation, which have been a staple part of mineral processing circuits for more than 100 years and can, in some instances, be water, energy and time intensive, still serve the industrys needs?

Its not just flotation; mineral processing as a whole faces increased challenges, said Paolo Donnini, principal process engineer at SNC-Lavalin. We need to be smarter in how we go about extracting metals and minerals using less energy, smaller equipment, lesser footprints, less concrete everything really, he said.

Dr. Chris Anderson, specialist process engineer, and Marc Richter, AEM regional director for minerals processing at Hatch, agreed. Sustainable and effective changes in mining practices are essential to enable progress in value chain efficiencies, while recognizing the obligations to other important factors such as climate change, Richter said.

At a macro-level, efficiency in flotation can be driven using holistic engineering approaches. For example, Hatch offers two solutions Mine to Mill and Grade Engineering that aim to increase the overall efficiency of mineral processing operations, inclusive of flotation.

Richter explained: Mine to Mill is a consolidated approach focusing on optimizing mining operations across the value chain with a specific focus on mining (run-of-mine fragmentation), comminution and separation. Optimizing each stage in isolation can result in sub-optimal performance of the overall operation and reduce profitability. To get the best results, each stage is optimized considering the preceding and subsequent stages.

This approach increases plant throughput, reduces energy consumption and operating costs, and improves process efficiency. It can be applied to greenfield projects or business improvement initiatives on existing assets. Typical projects see noticeable throughput benefits with a short payback time.

In December 2020, Hatch announced it would commercialize Grade Engineering, an integrated and methodical approach for assessing the viability and implementation of coarse separation options in preconcentration.

Grade Engineering is designed to reject low-value material early in the extraction value chain to provide high-quality feed, Richter said. By reducing uneconomical material early in the process and improving the quality of the processed ore, Grade Engineering improves overall metal production and reduces water and energy intensities, while minimizing wet tailings.

Anderson added: Through Grade Engineering, we have worked with several clients to develop coarse particle flotation (CPF) circuits aimed at reducing energy consumption in comminution, while ensuring liberation of the valuable metals in the deposit. These projects included evaluating options for the recovery of coarse valuable-bearing composites in the primary grinding circuit and early gangue rejection; and recovery of coarse value-bearing composites lost to conventional flotation tailings.

In the right applications, CPF can offer a reduction in energy demand in preceding comminution stages, increased production rates, and result in coarser tailings streams, which are easier to handle and more geotechnically stable.

The limitations of conventional flotation cells can be overcome through the use of fluidized-bed flotation machines, like Eriezs HydroFloat, which are specifically engineered for the selective recovery of feeds containing very coarse particles. However, the coarsest particle size that can be floated will depend on the liberation of the valuable mineral.

Were also currently implementing a project in North America to install Woodgrove Staged Flotation Reactors (SFR) in a cleaner-scalper application, and several projects looking at Eriez StackCells as a retrofit to either a pre-rougher or rougher application where the client is seeking additional residence time in a constrained footprint, Anderson said.

Conventional flotation cells are known to be relatively inefficient in terms of promoting particle-bubble contacting. However, the historical approach is to compensate by adding a scale-up factor to the residence time obtained through bench-scale tests. This approach is increasingly limited in circuits, which are fine grained, requiring long residence times and complex cleaning circuits to achieve the necessary grade.

Technologies such as the Jameson cell and column cell have been substantially improved over the past 20 to 30 years and are increasingly viewed as mature technologies. The Jameson cell in particular can be used to develop compact full-plant solutions, which offer some attractive advantages. Newer technologies such as the Woodgrove SFR and Direct Flotation Reactor (DFR) cell are also gaining interest in large-scale installations.

The Eriez HydroFloat cell is seeing significant interest in coarse particle rejection applications in copper and PGMs (more on this later). If successful, CPF may eventually become a standard in flotation applications where gangue can be liberated at coarse sizes (~500 microns). Other technologies such as the NovaCell are also gaining traction in this space.

Anderson explained: Our role is to help the client through the process development and bring newer technologies into consideration as early as possible, particularly in the conceptual and prefeasibility phases.

Columns and Jameson cells can be simulated using traditional batch flotation tests and HydroFloat performance can be inferred based on mineralogy and liberation information. Ultimately, pilot-scale test work must be performed. However, the information derived from early mineralogy and bench-scale tests can be used for trade-off studies to focus in on high-value alternatives.

I think low-footprint technologies such as Jameson cells and Woodgrove cells may prove disruptive as they allow substantial throughputs with a low footprint. In the long term, these technologies may find applications closer to the mining face, especially for underground applications.

Like Richter and Anderson, Donnini has noticed a growing interest in novel flotation technologies over the past five years and, more importantly, a willingness from mining companies to consider their applicability and economic feasibility.

Were starting to dissect flotation, he said. Rather than trying to create huge cells of 500 cubic meters (m3) or more, vendors like Woodgrove and Eriez are trying to get greater efficiencies from smaller cells. And theyre doing that by looking at the fundamentals of flotation. For example, Woodgroves SFR splits the flotation process into three stages contacting, separation, and then removal of the froth and tails. Rather than looking at flotation as a macro process, its being looked at more closely as a micro process.

Likewise, classically in flotation, we try to embrace the whole particle size distribution of the feed material. But with technologies like Eriezs HydroFloat, theyre suggesting that we narrow the particle-size distribution to create more efficiency. Its a much more elegant, accurate and precise approach to the process.

With CPF, you dont have to grind the ore to the fine endpoint thats required for conventional flotation technology, he explained. You can separate ore from gangue at a size that is roughly twice the size of conventional technology. Which means you dont have to over grind and you dont have to waste any energy, which is very expensive. Also, mines dont have to worry about storing tailings that are very fine and unstable the material can be easily dewatered and you can reduce conventional flotation capacity as well.

It depends upon the ore and its density but, for copper, which were really focusing on, you get an acceptable recovery in conventional flotation up to about 120 or 130 microns. Certainly, it drops off before 200 microns.

With CPF, you can usually take that up to 400 microns, which reduces the amount of grinding needed by half. In grinding, the amount of energy required increases disproportionately as the material becomes finer the finer the material being ground, the more energy is required which is why ultra-fine grinding mills use a lot of energy.

According to a new report from Weir Group, Mining Energy Consumption 2021, comminution accounts for 25% of final energy consumption at the average mine site. Across the hard-rock mining sector, this equates to around 1% of total global energy consumption every year. The report author, Marc Allen, stated that a 5% incremental improvement in energy efficiency across comminution could result in GHG emission reductions of more than 30 million metric tons (mt) of CO2e. To put that into perspective, New Zealands total emissions stand at around 35 million mt of CO2e.

CPF is not a new concept. However, what is new is its application at a commercial scale in base metals. Eriez has been applying CPF in phosphate and potash for 20 years and, in the past eight years, has been working to bring the benefits into base metals operations, particularly copper.

We did a lot of pilot work at Rio Tinto Kennecott Utah Copper in the U.S., Wasmund said. And we discovered that CPF really suits tails scavenging. When we started looking at the tails of conventional plants, we realized the material being lost to tails wasnt spread across the entire size distribution. It was actually very low in the size distribution where conventional flotation is effective, which makes sense.

Where we see a big drop-off is where the material is too coarse, or where its too fine. And we found that its very easy to develop a business case for reprocessing tails from a conventional plant using the HydroFloat. You can make money just by reprocessing and treating the material that conventional flotation isnt good at recovering.

Conventional flotation is not efficient for coarse particles, explained Wasmund. But what if we put [these new flotation technologies] right into the mill circuit and remove a coarse product before we overgrind it? Then youd get all the benefits of having a coarse tail, a reduction in energy requirements, and you can reduce the size of your plant. Thats what were calling coarse gangue rejection and its being worked on by a number of mining companies right now.

Its an ore sorting technology, except it sorts material at maybe half a millimeter, as opposed to conventional sensor-based ore sorting, which decides whether a 6-in. rock can be differentiated and disposed of before it goes through the plant, Wasmund explained.

This is ore sorting on a much finer scale, and the benefit is that it produces a much higher recovery rate. Sensor-based ore sorting uses blasts of air to shoot rocks containing a certain percentage of gangue off of a conveyor belt. The cut-off grade means that a certain amount of ore is lost along the way. Whereas in coarse gangue rejection, because the material is much finer, the margin of recovery is that much higher.

Anglo American is trialing the use of coarse particle recovery or rejection at Mogalakwena in South Africa as part of its FutureSmart Mining program. The company is also using it in tails scavenging applications at mines like Quellaveco in Peru and El Soldado in Chile, and to generate coarse tails that can be co-deposited with fine material in a dry facility, without a water impoundment.

In a previous interview (Copper processing: the quest for efficiency at scale, December 2020), a spokesperson for Anglo said CPF is a key technology in closing the loop on its water usage too an initial step toward the companys goal of dry processing.

We did a study with Capstone Mining based on their Cozamin site using coarse gangue rejection. And found that we could reduce the ball mill requirement by 30%-50%, convert 30% of the tails to a coarse size (instead of 200 microns, they were 600 microns) and reduce the amount of conventional flotation by 40%, said Wasmund, proudly. All of these benefits are site specific. But CPF, as a tool, can be used in so many different ways. There could be exciting applications that we dont even know about yet!

Another concept that Eriez and others like Woodgrove are working on is staged flotation. Again, the technology is not new Eriez has been running its StackCell in coal applications for 15 years but the company has recently redesigned it to handle base metals.

People have known about this for a long time, but still prefer to do everything in a single stirred tank, Wasmund said. If you break the flotation process down into two steps, as with the StackCell, then you can reduce the amount of working volume needed by a factor of four to five. Thats been validated at a number of sites.

The StackCell, which is much smaller than a traditional flotation cell, can shrink the size of a flotation plant by 50%. The knock-on effect is that it also requires less concrete (smaller carbon footprint), less piping to connect the units, and fewer electrical connections and cable trays and pipe racks, thus reducing CAPEX and engineering times too. This makes it ideal for use in plant expansions or at projects where a minimal footprint is important.

In metal mines, orebody characteristics can vary significantly throughout the life of mine. Initial and ongoing test work are crucial to optimizing the reagents used in flotation circuits. Donnini believes there is much to be learned from the industrial minerals market in this regard.

We just finished an expansion study for an open-pit mine, he explained. Theyre looking at the material theyre going to be mining for the next 10 years, and its very different to what they have been mining for the past 15.

The challenge that creates in flotation is that a lot of factors can interfere with the surface chemistry; Ive known of flotation plants that were upset for weeks due to something that was present in the parts-per-million range. Its a continuously changing environment, and often chemicals are an afterthought.

If we look at the work that Chinese phosphate manufacturers have done to develop reagent packages that are optimized for low-grade minerals they are developing the reagent package and then developing the flotation train based around that. The Phosphate Institute in Florida, which is largely supported by Mosaic, has done lots of work on this too.

I think one of the approaches that is necessary in the future is to identify the reagent package and how we want to use it in the process, and then build the flotation circuit around that package. Im sure others will say they do that already, but were not taking full advantage of the opportunity because most mines are using standard reagents.

I understand its expensive to do investigations and to invest in customized reagents. But at the same time, because of the challenges that are coming our way and theyre not coming, they are here already it makes total sense.

Dr. Kevin Brooks, APC global lead at Hatch, has pioneered the use of model predictive control (MPC) on flotation plants worldwide. Work with Anglo Platinum, FQML and Glencore has demonstrated that the combination of linear models derived from plant testing, and feedback from machine vision applications and/or online grade measurements yields significant benefits in grade, recovery and reagent usage.

Brooks explained: MPC is a technology developed in the oil refining industry more than 30 years ago. Its uptake in the minerals industry has been slow but has accelerated over the last five to 10 years. The technology slots right into the current thinking around Industry 4.0 and machine learning. The ability to optimize a unit in real-time yields paybacks in order of months leads to more consistent operation across shifts and allows plant operators to concentrate on the more manual areas of the unit.

Comminution is also an area where MPC yield benefits. Brooks sees a time when milling and flotation MPCs will be combined using a coordination model. This is the route to online control and optimization embracing the mine to mill concept, he said. Work is already being done to combine scheduling models with MPC to provide this wide scope of optimization and its associated benefits.

Donnini believes that, going forward, a more proactive approach is needed, one that encompasses prediction and automatic adjustment of plant parameters. Advanced process control and statistical process control will allow us to do a much better job of controlling the flotation process than we do today, he said.

In an operating environment, for a model to be useful, it must be able to accurately predict a reactive model is no use, Donnini said. That is a key element of the Industry 4.0 concept; mines need to be able to simulate their processes accurately enough so that they can predict whats going to happen in their processes, based on whats coming in.

Donnini believes advanced process control and neural networks offer a timely solution to predicting flotation performance today. The mathematical algorithms learn how a process operates and, using a certain number of inputs, take corrective action based upon experience.

To me, that is the solution to advanced process control in flotation, he said. I struggle to imagine somebody developing a model, being willing to spend the amount of money that it would take to collect all the data on factors that are likely to affect a flotation process. The alternative is that we learn (the machine learns). The more that machine is exposed to certain events, then the more accurately it can predict conditions.

Companies like Metso Outotec and FLSmidth have technologies that watch and measure froth properties, but I dont think anyone has closed the loop yet to allow those systems to initiate corrective action. Thats still left to the operator to do. But that will be an important step forward in controlling the flotation process.

Another important aspect, one that will be crucial to achieving all of the above, is continuous feed monitoring and particle size analysis. Today, this tends to be done in batches and the tests can take hours to return results. To install a laser scanner over a conveyor would provide a partial solution. However, the accuracy depends heavily on how a particle presents to the laser at a specific point in time.

Most particles are not spherical, but most models are created based on the assumption of spherical particles Again, in time, accurate, real time particle size analysis will improve our modelling capabilities as well.

What this article has shown is that flotation, as a technology, is not going anywhere. In fact, rather than being a limiting aspect of future flowsheets, one that could potentially be phased out over time, its going in quite the opposite direction.

Novel flotation technologies applied in new ways throughout flowsheets will prove invaluable in enabling ESG-conscious mining companies to meet future market demands while minding their resource consumption.

Anderson and Richter agreed. Flotation will remain a necessary portion of the flowsheet for the foreseeable future as a means of concentrating prior to roasting and leaching or even smelting, Anderson said. Dry technologies such as gravity, magnetic separation and electrostatic separation are unable to exploit the differences in surface characteristics which is a key separation method in mineral processing. However, its application may move closer to the mining face as time goes on.

Wasmund was pragmatic. Its important to put flotation into perspective with other extraction processes, he said. Its actually a very green technology, because it allows mines to separate valuable material from waste right after mining. If you compare that to other technologies

For instance, theres a big debate in the nickel market about where nickels going to come from for future electric vehicles. There are two main types of nickel resources: sulphides and laterites (oxides). Flotation can be used to concentrate sulphide nickels up to 30%, whereas laterites cannot be preconcentrated. The whole feed must be treated through high-pressure acid leaching (HPAL) or an electric arc furnace. And that increases the cost of production significantly, as well as the environmental footprint.

When were all driving electric vehicles and charging our cars at home with massive copper wires that connect up to our houses to get that copper and nickel were going to have to mine deposits that are much lower grade than those mined today. And the best way to do that is using more efficient forms of flotation.

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a review on the impact of mining and mineral processing industries through life cycle assessment - sciencedirect

a review on the impact of mining and mineral processing industries through life cycle assessment - sciencedirect

A review based on life cycle assessment studies in mining and mineral processing.16 metal mining industries are reviewed.Summarised key factors of environmental effects using LCA.Future research directions are highlighted.

This paper analysed and summarised the significant research outputs published on the environmental impact assessment of mining and mineral processing industries through life cycle assessment. The paper presents valuable insights in identifying the gaps, where should the focus be in the mining and mineral processing industries for a sustainable future. Mining and mineral processing industries have been the key focus of research in many countries due to its increasing sustainability concerns that affect global warming and climate change. Use of heavy equipment that consumes electrical energy, mechanical energy, and an enormous amount of process heat is a key contributor to the overall impacts in the industry. Due to the use of heavy equipment and associated energy consumption, these industrial sectors contribute notably to global warming, human health, ecosystems, and resources. Among the various environmental impact assessment tools which are widely used to identify sustainability indicators, life cycle assessment (LCA) is a well-justified approach among the practitioners and researchers. Though state of the art technological tools and resources are being used now a days, there is still a research gap in identifying the key mining processes which need to be the focus of attention. Renewable energy integration in the mineral processing sector and process heating from green energy sources is becoming the emergent field of research. The review results reveal, the assessment indicators in human health and ecosystems are key factors that are mostly missing in the previous studies which are crucial for people or community living nearby mining area. This review paper identifies the research gaps to the existing literature that can form the base for future research direction in the field of LCA and sustainable energy integration in mining and mineral processing industries.

solgold plc announces alpala update - phase 2 metallurgical report

solgold plc announces alpala update - phase 2 metallurgical report

BISHOPSGATE, LONDON / ACCESSWIRE / April 29, 2020 / The Board of Directors of SolGold (SOLG.L)(SOLG.L) is pleased to provide an update on the ongoing comprehensive metallurgical test work programme underway at the Company's flagship Alpala copper-gold porphyry Project in northern Ecuador.

Following the completion of further metallurgical test work at Alpala, the Company has received the Phase 2 Test Work Report by ALS Metallurgical Laboratories, Canada. Phase 1 and 2 together represent an evaluation of the metallurgy for the whole planned mine life of the Alpala deposit.

Improved recoveries in metallurgical tests across all valuable minerals indicate a potential increase in the revenues from the Alpala project. Results from these metallurgical test programmes form important elements of the Pre-Feasibility Study ("PFS") currently underway. Phase 2 allowed SolGold to conduct flowsheet optimisation testing followed by flowsheet development.

The Phase 2 test work programme was based upon further composite samples from 785 metres (1,437kg) of core from previous diamond drilling at the Alpala project. This generated a total of 33 variability composites (each comprising 24 metres of core) as well as four master composites. The master composites represent low, medium (x2) and high grade feed material. To date, a total of 1,265 metres (2,417kgs) of core has been analysed and metallurgically assessed as part of both Phase 1 and Phase 2 of the metallurgical programme, comprising 53 variability samples and seven master composites.

"Despite current disruptions due to COVID-19, the SolGold team continues to progress large scale metallurgical test work at Alpala. The results of this are being used to assess potential refinements to the flowsheet and our operating and capital cost estimates as well as improvements in revenues generated by upgraded recoveries. In addition, these results continue to demonstrate the high-quality of Alpala concentrate and form an important part of our current offtake negotiations with leading traders and smelters."

"The comprehensive test programme completed thus far has once again produced encouraging results. The flotation tests have demonstrated the ability to produce a high grade dominantly chalcopyrite concentrate throughout the modelled mine life and confirms the Alpala project to be a very low deleterious content deposit. Variability test work conducted so far has shown that production can occur effectively at any point on the grade-recovery curve, positioning the modelled mine robustly in terms of possible concentrate market changes."

In Phase 2, efforts were focused on optimising the process flowsheet using the test results of the four master composites, prepared from the 33 variability samples. The developed flowsheet was then applied to the 33 individual variability samples. Locked cycle tests were initially run with water sourced from site, and no water recycle. Locked cycle tests have for several decades, been the industry standard method used to simulate plant operation (with regard to recirculating loads, water quality and reagent usage) and optimal metallurgical recovery circuit design.

The tests were then repeated with recycled water to simulate process water use on site. This produced eight sets of locked cycle results, with feed grades varying from 0.21% Cu to 1.53% Cu. Recovered copper concentrate grades ranged from 25.7% to 30.1% copper content. Gold in the concentrate varied from 10.3 g/t to 16.7 g/t, and silver from 45 g/t to 93 g/t. Extended analysis showed very low deleterious elements in the concentrate (Figure 6), well below any applicable penalty limits.

SolGold considers that following suitable regrind and cleaning stages, it may be possible to produce a saleable magnetite concentrate. Tailings from each of the rougher flotation variability tests were subjected to Davis Tube Recovery tests to evaluate the potential for magnetite recovery. The tests were conducted at the 'as received' grind size (typically 150 m) at a magnetic intensity of 4,000 Gauss. Magnetite recoveries were calculated based on the flotation feed mineralogy. The results indicate that at a feed grade of greater than 2.5% magnetite, a concentrate grading >40% magnetite can be produced. Magnetite recoveries (to concentrate) averaged 85%. SolGold is continuing to evaluate by-product magnetite recovery.

Phase 2 locked cycle testing of the Alpala ores indicates a 7% increase in life of mine gold recovery compared to the PEA. As indicated in Figure 4, substantial improvements in recovery are expected to be achieved from year twenty onwards.

Predicted copper recoveries were consistent with the Phase 1 (PEA) predictions for years 1 to 10, but approximately 1% lower over years 10-30. Overall this represents a 0.51% decrease in copper recovery compared to modelled recoveries referred to in the PEA.

Tailings from the cleaner cells were collected into ten composites and subjected to bottle roll cyanidation test work to evaluate the extraction of copper, gold and silver in an effort to further enhance recoveries of these metals.

An additional two composites were used to evaluate recoveries from biological and thiosulphate leaching. The grade of the cyanidation composites varied from 0.29 g/t Au to 2.68 g/t Au, with gold extraction from the cleaner tailing, based on a 72-hour residence time, varying from 46% to 88% from cleaner cell tailings.

Leach enhancement via an acid wash increased gold extraction to between 58% and 89% from the cleaner cell tailings. Twenty-one days biological oxidation followed by cyanidation increased the gold extraction to 93%. Cyanide consumption ranged between 0.8 kg/t and 6.2 kg/t.

Source: ALS Phase 2 Report 2020Notes: a) *Cu, Fe, Au, Ag and S assays were taken from locked cycle test assays completed at ALS Metallurgy Kamloops, Canada; results for other metals were sourced from assays completed at ALS Geochemistry in North Vancouver, Canada.b) Values indicate averages of determinations completed on individual concentrates from each locked-cycle test.c) Complete multi-element ICP analyses along with other external concentrate assays can be located in Appendix V - Special Data in the full ALS Phase 2 Reportd) Details of extended analysis as included in the full ALS Phase 2 Report

As part of the PFS (and ultimate DFS), SolGold continues to advance its metallurgical test work programme. This includes plans for a bulk sampling programme to generate 20 to 30 tonnes of material for pilot plant evaluation. This will include vendor thickening and filtration tests, transportable moisture limits (TML) for shipment, rheology tests for concentrate and tailing pipelines and further tailing characterisation work. In addition, selected sample will be used for crushing tests and pyrite concentrate will be produced for further leach evaluation. If warranted, tailings will be evaluated for more detailed magnetite recovery. The Company will provide a further update on this in due course.

SolGold's on site operations in Ecuador are currently halted in an effort to reduce the potential transmission of COVID-19. SolGold continues to actively monitor all its employees. Health and safety are top priorities for the Company and SolGold will continue supporting its employees and local communities where possible in their efforts to curtail the spread of the virus.

Information in this report relating to the exploration results is based on data reviewed by Mr Jason Ward ((CP) B.Sc. Geol.), the Chief Geologist of the Company. Mr Ward is a Fellow of the Australasian Institute of Mining and Metallurgy, holds the designation FAusIMM (CP), and has in excess of 20 years' experience in mineral exploration and is a Qualified Person for the purposes of the relevant LSE and TSX Rules. Mr Ward consents to the inclusion of the information in the form and context in which it appears.

SolGold is a leading resources company focussed on the discovery, definition and development of world-class copper and gold deposits. In 2018, SolGold's management team was recognised by the "Mines and Money" Forum as an example of excellence in the industry and continues to strive to deliver objectives efficiently and in the interests of shareholders. SolGold is the largest and most active concession holder in Ecuador and is aggressively exploring the length and breadth of this highly prospective and gold-rich section of the Andean Copper Belt.

The Company operates with transparency and in accordance with international best practices. SolGold is committed to delivering value to its shareholders, while simultaneously providing economic and social benefits to impacted communities, fostering a healthy and safe workplace and minimizing the environmental impact.

SolGold employs a staff of 737 employees of whom 98% are Ecuadorean. This is expected to grow as the operations expand at Alpala, and in Ecuador generally. SolGold focusses its operations to be safe, reliable and environmentally responsible and maintains close relationships with its local communities. SolGold has engaged an increasingly skilled, refined and experienced team of geoscientists using state of the art geophysical and geochemical modelling applied to an extensive database to enable the delivery of ore grade intersections from nearly every drill hole at Alpala. SolGold has 86 geologists, of whom 30% are female, on the ground in Ecuador exploring for economic copper and gold deposits.

The Alpala deposit is the main target in the Cascabel concession, located on the northern section of the heavily endowed Andean Copper Belt, the entirety of which is renowned as the base for nearly half of the world's copper production. The project area hosts mineralisation of Eocene age, the same age as numerous Tier 1 deposits along the Andean Copper Belt in Chile and Peru to the south. The project base is located at Rocafuerte within the Cascabel concession in northern Ecuador, an approximately three-hour drive on sealed highway north of the capital Quito, close to water, power supply and Pacific ports.

Having fulfilled its earn-in requirements, SolGold is a registered shareholder with an unencumbered legal and beneficial 85% interest in ENSA (Exploraciones Novomining S.A.) which holds 100% of the Cascabel concession covering approximately 50km2. The junior equity owner in ENSA is required to repay 15% of costs since SolGold's earn in was completed, from 90% of its share of distribution of earnings or dividends from ENSA or the Cascabel concession. It is also required to contribute to development or be diluted, and if its interest falls below 10%, it shall reduce to a 0.5% NSR royalty which SolGold may acquire for US$3.5m.

The resource at the Alpala deposit boasts a high-grade core which is targeted to facilitate early cashflows and an accelerated payback of initial capital. SolGold is currently assessing financing options available to the Company for the development of the Alpala mine following completion of the Definitive Feasibility Study.

SolGold is using its successful and cost-efficient blueprint established at Alpala, and Cascabel generally, to explore for additional world class copper and gold projects across Ecuador. SolGold is the largest and most active concessionaire in Ecuador.

The Company wholly owns four other subsidiaries active throughout the country that are now focussed on thirteen high priority gold and copper resource targets, several of which the Company believes have the potential, subject to resource definition and feasibility, to be developed in close succession or even on a more accelerated basis compared to Alpala.

SolGold is listed on the London Stock Exchange and Toronto Stock Exchange (LSE/TSX: SOLG). The Company has on issue a total of 1,923,321,033 fully-paid ordinary shares and 185,162,000 unlisted options exercisable at various prices ranging from 25p to 60p and expiring between July 2020 and November 2024.

Primary sample collection involves secure transport from SolGold's concessions in Ecuador, to the ALS certified sample preparation facility in Quito, Ecuador. Samples are then air freighted from Quito to the ALS certified laboratory in Lima, Peru where the assaying of drill core, channel samples, rock chips and soil samples is undertaken. SolGold utilises ALS certified laboratories in Canada and Australia for the analysis of metallurgical samples.

Samples are prepared and analysed using 100g 4-Acid digest ICP with MS finish for 48 elements on a 0.25g aliquot (ME-MS61). Laboratory performance is routinely monitored using umpire assays, check batches and inter-laboratory comparisons between ALS certified laboratory in Lima and the ACME certified laboratory in Cuenca, Ecuador.

In order to monitor the ongoing quality of its analytical database, SolGold's QA/QC protocol encompasses standard sampling methodologies, including the insertion of certified powder blanks, coarse chip blanks, standards, pulp duplicates and field duplicates. The blanks and standards are Certified Reference Materials supplied by Ore Research and Exploration, Australia.

SolGold's QA/QC protocol also monitors the ongoing quality of its analytical database. The Company's protocol involves Independent data validation of the digital analytical database including search for sample overlaps, duplicate or absent samples as well as anomalous assay and survey results. These are routinely performed ahead of Mineral Resource Estimates and Feasibility Studies. No material QA/QC issues have been identified with respect to sample collection, security and assaying.

Reviews of the sample preparation, chain of custody, data security procedures and assaying methods used by SolGold confirm that they are consistent with industry best practices and all results stated in this announcement have passed SolGold's QA/QC protocol.

News releases, presentations and public commentary made by SolGold plc (the "Company") and its Officers may contain certain statements and expressions of belief, expectation or opinion which are forward looking statements, and which relate, inter alia, to interpretations of exploration results to date and the Company's proposed strategy, plans and objectives or to the expectations or intentions of the Company's Directors. Such forward-looking and interpretative statements involve known and unknown risks, uncertainties and other important factors beyond the control of the Company that could cause the actual performance or achievements of the Company to be materially different from such interpretations and forward-looking statements.

Accordingly, the reader should not rely on any interpretations or forward-looking statements; and save as required by the exchange rules of the TSX and LSE or by applicable laws, the Company does not accept any obligation to disseminate any updates or revisions to such interpretations or forward-looking statements. The Company may reinterpret results to date as the status of its assets and projects changes with time expenditure, metals prices and other affecting circumstances.

This release may contain "forwardlooking information" within the meaning of applicable Canadian securities legislation. Forwardlooking information includes, but is not limited to, statements regarding the Company's plans for developing its properties. Generally, forwardlooking 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 certain actions, events or results "may", "could", "would", "might" or "will be taken", "occur" or "be achieved".

Forwardlooking information is subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of the Company to be materially different from those expressed or implied by such forwardlooking information, including but not limited to: transaction risks; general business, economic, competitive, political and social uncertainties; future prices of mineral prices; accidents, labour disputes and shortages and other risks of the mining industry. Although the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking information, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such information 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 forwardlooking information. The Company does not undertake to update any forward-looking information, except in accordance with applicable securities laws.

The Company and its officers do not endorse, or reject or otherwise comment on the conclusions, interpretations or views expressed in press articles or third-party analysis, and where possible aims to circulate all available material on its website.

This information is provided by RNS, the news service of the London Stock Exchange. RNS is approved by the Financial Conduct Authority to act as a Primary Information Provider in the United Kingdom. Terms and conditions relating to the use and distribution of this information may apply. For further information, please contact [email protected] or visit www.rns.com.

Shares of SGOCO Group(NASDAQ: SGOC) were up over 500% on Friday on heavy trading volume. The penny stock didn't release any news to trigger this price movement. SGOCO Group is a penny stock that manufactures phase change storage systems, among other items.

Elizabeth Warren has sharp words for Wells Fargo. The bankis discontinuing personal lines of credit and will shut down existing ones in the coming weeks,CNBC reported,citing customer letters it has reviewed. In a frequently asked questions section of a letter sent by the back, Wells Fargo warned that the discontinuation of such bank accounts may impact customers credit scores.

The good news: That pension and your savings are and will be great assets for you in retirement, so congratulations on that! There are many factors that go into knowing how much youll need for retirement, and a few ways to break down these annual estimates. For example, if you were to use the 4% rule, which is a traditional rule of thumb that suggests you take out 4% of your retirement savings every year to live on, youd generate about $30,000 to $35,000 a year, said Morgan Hill, chief executive officer of Hill and Hill Financial.

My husband had just had his salary cut by 50%, and we were living with my parents in Westchester County, New York, because we could no longer afford the rent on our apartment in Brooklyn. Now, our monthly mortgage payment is $1,500 less than our rent in Brooklyn. In New York City, some parking spaces go for what we bought an entire house for in Savannah.

Stocks can flirt with a price bottom for a lot of reasons. Usually, however, investors will assume that there is something fundamentally unsound about the stock, or the company. Perhaps its business model is flawed, perhaps its product has grown unpopular these, and many more factors can drive the share price down. But sometimes, perhaps just as often, a stock price will fall when there is no underlying unsoundness. A spate of bad news, a quarter that misses expectations, or a bad sales month

The stock market put in a strong showing on Friday, sending the S&P 500 (SNPINDEX: ^GSPC) and Nasdaq Composite (NASDAQINDEX: ^IXIC) to new record levels. Earlier this year, the investing thesis for many fast-growing companies got called into question by changing macroeconomic conditions. For many investors, Snowflake has been a colossal disappointment.

Signs of panic buying emerged Friday afternoon on the New York Stock Exchange amid a powerful stock-market rally in the final minutes of trade, a day after one of the worst selloffs for equities since mid June. Market internals suggest that investors are buying mightily headed into the weekend. The NYSE Arms Index, a volume-weighted breadth measure, fell to 0.413, with many on Wall Street see declines below 0.500 as suggesting panic buying. The Arms Index is calculated by dividing the ratio of t

In this article, we discuss the 20 Chinese companies listed on NYSE/NASDAQ/AMEX. If you want to skip our detailed analysis of these companies, go directly to the 5 Chinese Companies Listed on NYSE/NASDAQ/AMEX. The trade tension between the United States and China over the past few years has dominated headlines around the world, fueling speculation []

A woman has been accused of punching a 6-year-old Asian boy while hurling racial slurs at him and his mother in Las Vegas this week. What you need to know: The incident occurred at The Shops at Crystals, an upscale shopping mall located in the CityCenter complex. Tiktok user @uhmmajo managed to film part of the alleged attack, which shows the woman having an unhinged meltdown.

In this article, we will be looking at the 15 best security stocks to buy now. To skip our detailed analysis of the cybersecurity industry, you can go directly to the 5 Best Security Stocks to Buy Now. According to Goldman Sachs, security software and cybersecurity stocks saw a huge rally in 2020, and this []

In this article, we discuss the 10 best Vanguard stocks to buy now based on Vanguard Groups holdings.. If you want to skip our detailed analysis of these stocks, go directly to the 5 Best Vanguard Stocks to Buy Now. Vanguard stocks, which we will analyze in this article based on Vanguard Groups holdings, are []

further metallurgical test work continues to add improvements and modeled revenue increases at alpala

further metallurgical test work continues to add improvements and modeled revenue increases at alpala

OTTAWA, April 29, 2020 (GLOBE NEWSWIRE) -- Cornerstone Capital Resources Inc. (Cornerstone or the Company) (CGP.V) (GWN.F) (GWN.BE) (CTNXF) is pleased to announce the following update on the exploration program at its Cascabel copper-gold porphyry joint venture project in northern Ecuador, in which the Company has a 15% interest1 financed through to completion of a feasibility study plus 8.22% of the shares of joint venture partner and project operator SolGold Plc, for a total direct and indirect interest in Cascabel of 22%.

Following the completion of further metallurgical test work at the Alpala deposit on the Cascabel concession, SolGold has received the Phase 2 Test Work Report by ALS Metallurgical Laboratories, Canada. Phase 1 and 2 represent together a representative evaluation of the metallurgy for the whole planned mine life of the Alpala deposit.

Improved recoveries in metallurgical tests across all valuable minerals indicate a potential increase in the value of the Alpala project. Results from these metallurgical test programs form important elements of the Pre-Feasibility Study ("PFS) currently underway. Phase 2 allowed SolGold to conduct flow-sheet optimization testing followed by flowsheet development.

The Phase 2 test work program was based upon further composite samples from 785 metres (1,437kg) of core from previous diamond drilling at the Alpala project. This generated a total of 33 variability composites (each comprising 24 metres of core) as well as four master composites. The master composites represent low, medium (x2) and high grade feed material. To date, a total of 1,265 metres (2,417kgs) of core has been analyzed and metallurgically assessed as part of both Phase 1 and Phase 2 of the metallurgical program, comprising 53 variability samples and seven master composites.

In Phase 2, efforts were focused on optimizing the process flowsheet using the test results of the four master composites, prepared from the 33 variability samples. The developed flowsheet was then applied to the 33 individual variability samples. Locked cycle tests (see Glossary, below) were initially run with water sourced from site, and no water recycle. Locked cycle tests have for several decades been the industry standard method used to simulate plant operation (with regard to recirculating loads, water quality and reagent usage) and optimal metallurgical recovery circuit design.

The tests were then repeated with recycled water to simulate process water use on site. This produced eight sets of locked cycle results, with feed grades varying from 0.21% Cu to 1.53% Cu. Recovered copper concentrate grades ranged from 25.7% to 30.1% copper content. Gold in the concentrate varied from 10.3 g/t to 16.7 g/t, and silver from 45 g/t to 93 g/t. Extended analysis showed very low deleterious elements in the concentrate, well below any applicable penalty limits.

Tailings from each of the rougher flotation variability tests were subjected to Davis Tube Recovery tests to evaluate the potential for magnetite recovery. The tests were conducted at the as received grind size (typically 150 m) at a magnetic intensity of 4,000 Gauss. Magnetite recoveries were calculated based on the flotation feed mineralogy. The results indicate that at a feed grade of greater than 2.5% magnetite, a concentrate grading >40% magnetite can be produced. SolGold considers that following suitable regrind and cleaning stages it may be possible to produce a saleable magnetite concentrate. Magnetite recoveries (to concentrate) averaged 85%. SolGold is continuing to evaluate by product magnetite recovery.

Phase 2 locked cycle testing of the Alpala mineralized material sampled indicates a 7% increase in life of mine gold recovery compared to the PEA. As indicated in Figure 4, substantial improvements in recovery are expected to be achieved from year twenty onwards.

As indicated in Figure 5, predicted copper recoveries were consistent with the Phase 1 (PEA) predictions for years 1 to 10, approximately 1% lower over years 10-30. Overall this represents a 0.51% decrease in copper recovery compared to modeled recoveries referred to in the PEA.

Tailings from the cleaner cells were collected into ten composites and subjected to bottle roll cyanidation test work to evaluate the extraction of copper, gold and silver in an effort to further enhance recoveries of these metals.

An additional two composites were used to evaluate recoveries from biological and thiosulphate leaching. The grade of the cyanidation composites varied from 0.29 g/t Au to 2.68 g/t Au, with gold extraction from the cleaner tailing, based on a 72-hour residence time, varying from 46% to 88% from cleaner cell tailings.

Leach enhancement via an acid wash increased gold extraction to between 58% and 89% from the cleaner cell tailings. Twenty-one days biological oxidation followed by cyanidation increased the gold extraction to 93%. Cyanide consumption ranged between 0.8 kg/t and 6.2 kg/t.

As part of the PFS (and ultimate Definitive Feasibility Study or DFS), SolGold is advancing its metallurgical test work program. This includes plans for a bulk sampling program to generate 20 to 30 tonnes of material for pilot plant evaluation. This will include vendor thickening and filtration tests, transportable moisture limits (TML) for shipment, rheology tests for concentrate and tailing pipelines and further tailing characterisation work. In addition, selected sample will be used for crushing tests and pyrite concentrate will be produced for further leach evaluation. If warranted, tailings will be evaluated for more detailed magnetite recovery. The Company will provide a further update on this in due course.

ENSA3s on site operations in Ecuador are currently halted in an effort to reduce the potential transmission of COVID-19. ENSA continues to actively monitor all its employees. Health and safety are top priorities for the Company and ENSA will continue supporting its employees and local communities where possible in their efforts to curtail the spread of the virus.

Primary sample collection involves secure transport from the Cascabel concession in Ecuador, to the ALS certified sample preparation facility in Quito, Ecuador. Samples are then air freighted from Quito to the ALS certified laboratory in Lima, Peru where the assaying of drill core, channel samples, rock chips and soil samples is undertaken. ENSA uses ALS certified laboratories in Canada and Australia for the analysis of metallurgical samples.

Samples are prepared and analysed using 100g 4-Acid digest ICP with MS finish for 48 elements on a 0.25g aliquot (ME-MS61). Laboratory performance is routinely monitored using umpire assays, check batches and inter-laboratory comparisons between ALS certified laboratory in Lima and the ACME certified laboratory in Cuenca, Ecuador.

In order to monitor the ongoing quality of its analytical database, ENSAs QA/QC protocol encompasses standard sampling methodologies, including the insertion of certified powder blanks, coarse chip blanks, standards, pulp duplicates and field duplicates. The blanks and standards are Certified Reference Materials supplied by Ore Research and Exploration, Australia.

ENSAs QA/QC protocol also monitors the ongoing quality of its analytical database. The protocol involves Independent data validation of the digital analytical database including search for sample overlaps, duplicate or absent samples as well as anomalous assay and survey results. These are routinely performed ahead of Mineral Resource Estimates and Feasibility Studies. No material QA/QC issues have been identified with respect to sample collection, security and assaying.

Yvan Crepeau, MBA, P.Geo., Cornerstones Vice President, Exploration and a qualified person in accordance with National Instrument 43-101, is responsible for supervising the exploration program at the Cascabel project for Cornerstone (which is a minority partner and non-operator, SolGold Plc being the majority partner and operator) and has reviewed and approved the information contained in this news release.

Cornerstone Capital Resources Inc. is a mineral exploration company with a diversified portfolio of projects in Ecuador and Chile, including the Cascabel gold-enriched copper porphyry joint venture in north west Ecuador. Cornerstone has a 22% direct and indirect interest in Cascabel comprised of (i) a direct 15% interest in the project financed through to completion of a feasibility study and repayable at Libor plus 2% out of 90% of its share of the earnings or dividends from an operation at Cascabel, plus (ii) an indirect interest comprised of 8.22% of the shares of joint venture partner and project operator SolGold Plc. Exploraciones Novomining S.A. (ENSA), an Ecuadorean company owned by SolGold and Cornerstone, holds 100% of the Cascabel concession. Subject to the satisfaction of certain conditions, including SolGolds fully funding the project through to feasibility, SolGold Plc will own 85% of the equity of ENSA and Cornerstone will own the remaining 15% of ENSA.

Due to anti-spam laws, many shareholders and others who were previously signed up to receive email updates and who are no longer receiving them may need to re-subscribe at http://www.cornerstoneresources.com/s/InformationRequest.asp

Cautionary Notice:This news release may contain Forward-Looking Statements that involve risks and uncertainties, such as statements of Cornerstones plans, objectives, strategies, intentions and expectations. The words potential, anticipate, forecast, believe, estimate, expect, may, project, plan, and similar expressions are intended to be among the statements that identify Forward-Looking Statements. Although Cornerstone believes that its expectations reflected in these Forward-Looking Statements are reasonable, such statements may involve unknown risks, uncertainties and other factors disclosed in our regulatory filings, viewed on the SEDAR website at www.sedar.com. For us, uncertainties arise from the behaviour of financial and metals markets, predicting natural geological phenomena and from numerous other matters of national, regional, and global scale, including those of an environmental, climatic, natural, political, economic, business, competitive, or regulatory nature. These uncertainties may cause our actual future results to be materially different than those expressed in our Forward-Looking Statements. Although Cornerstone believes the facts and information contained in this news release to be as correct and current as possible, Cornerstone does not warrant or make any representation as to the accuracy, validity or completeness of any facts or information contained herein and these statements should not be relied upon as representing its views after the date of this news release. While Cornerstone anticipates that subsequent events may cause its views to change, it expressly disclaims any obligation to update the Forward-Looking Statements contained herein except where outcomes have varied materially from the original statements.

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.

Shares of SGOCO Group(NASDAQ: SGOC) were up over 500% on Friday on heavy trading volume. The penny stock didn't release any news to trigger this price movement. SGOCO Group is a penny stock that manufactures phase change storage systems, among other items.

Elizabeth Warren has sharp words for Wells Fargo. The bankis discontinuing personal lines of credit and will shut down existing ones in the coming weeks,CNBC reported,citing customer letters it has reviewed. In a frequently asked questions section of a letter sent by the back, Wells Fargo warned that the discontinuation of such bank accounts may impact customers credit scores.

The good news: That pension and your savings are and will be great assets for you in retirement, so congratulations on that! There are many factors that go into knowing how much youll need for retirement, and a few ways to break down these annual estimates. For example, if you were to use the 4% rule, which is a traditional rule of thumb that suggests you take out 4% of your retirement savings every year to live on, youd generate about $30,000 to $35,000 a year, said Morgan Hill, chief executive officer of Hill and Hill Financial.

My husband had just had his salary cut by 50%, and we were living with my parents in Westchester County, New York, because we could no longer afford the rent on our apartment in Brooklyn. Now, our monthly mortgage payment is $1,500 less than our rent in Brooklyn. In New York City, some parking spaces go for what we bought an entire house for in Savannah.

Stocks can flirt with a price bottom for a lot of reasons. Usually, however, investors will assume that there is something fundamentally unsound about the stock, or the company. Perhaps its business model is flawed, perhaps its product has grown unpopular these, and many more factors can drive the share price down. But sometimes, perhaps just as often, a stock price will fall when there is no underlying unsoundness. A spate of bad news, a quarter that misses expectations, or a bad sales month

The stock market put in a strong showing on Friday, sending the S&P 500 (SNPINDEX: ^GSPC) and Nasdaq Composite (NASDAQINDEX: ^IXIC) to new record levels. Earlier this year, the investing thesis for many fast-growing companies got called into question by changing macroeconomic conditions. For many investors, Snowflake has been a colossal disappointment.

Signs of panic buying emerged Friday afternoon on the New York Stock Exchange amid a powerful stock-market rally in the final minutes of trade, a day after one of the worst selloffs for equities since mid June. Market internals suggest that investors are buying mightily headed into the weekend. The NYSE Arms Index, a volume-weighted breadth measure, fell to 0.413, with many on Wall Street see declines below 0.500 as suggesting panic buying. The Arms Index is calculated by dividing the ratio of t

In this article, we discuss the 20 Chinese companies listed on NYSE/NASDAQ/AMEX. If you want to skip our detailed analysis of these companies, go directly to the 5 Chinese Companies Listed on NYSE/NASDAQ/AMEX. The trade tension between the United States and China over the past few years has dominated headlines around the world, fueling speculation []

A woman has been accused of punching a 6-year-old Asian boy while hurling racial slurs at him and his mother in Las Vegas this week. What you need to know: The incident occurred at The Shops at Crystals, an upscale shopping mall located in the CityCenter complex. Tiktok user @uhmmajo managed to film part of the alleged attack, which shows the woman having an unhinged meltdown.

In this article, we will be looking at the 15 best security stocks to buy now. To skip our detailed analysis of the cybersecurity industry, you can go directly to the 5 Best Security Stocks to Buy Now. According to Goldman Sachs, security software and cybersecurity stocks saw a huge rally in 2020, and this []

In this article, we discuss the 10 best Vanguard stocks to buy now based on Vanguard Groups holdings.. If you want to skip our detailed analysis of these stocks, go directly to the 5 Best Vanguard Stocks to Buy Now. Vanguard stocks, which we will analyze in this article based on Vanguard Groups holdings, are []

monument commences flotation plant work at selinsing

monument commences flotation plant work at selinsing

VANCOUVER, British Columbia, April 27, 2021 (GLOBE NEWSWIRE) -- Monument Mining Limited (TSX-V: MMY and FSE: D7Q1) ("Monument" or the "Company") is pleased to announce commencement of the phase 1 Selinsing Sulphide Gold Project by adding a flotation plant to the existing processing plant, which will produce marketable gold concentrates from the sulphide ore at Selinsing Gold Mine in Pahang State, Malaysia.

CEO and President Cathy Zhai commented: Monument has completed the restructuring of its mineral asset portfolio by spinning out the Mengapur base metals project. This enables us to focus on development and funding of the gold portfolio. She added: We plan to spend up to USD$20 million first to build a flotation plant for saleable gold concentrate, the proceeds from it can be used to add the planned bioleaching plant to produce gold bullion should an economic case be demonstrated by then.

The flotation construction comprises (1) Project economic validation aimed to optimize flotation design completed in the feasibility study, to produce saleable gold concentrate; (2) Detailed flotation design and engineering; (3) Procurement; (4) Construction and commissioning to deliver the final plant; and (5) Mine development.

The flotation construction team has been organized including project management, engineering, procurement and administrative support, directly supervised by a newly recruited Project Manager, who has 20 years experience in project management, construction and engineering.

Please refer to the video Update on Flotation Plant Work at Selinsing Gold Mine at the video section of the Monument Mining website: https://www.monumentmining.com/videos/ in conjunction with the following contents.

The project economic validation was initiated three months ago at the on-site laboratory using sulphide samples collected from Buffalo Reef. It is to confirm the flotation reagent regime, evaluate and maximize the economics of the gold concentrate product that can be achieved through the sizing of flotation cells and the number of cleaning stages.

Orway Mineral Consultants (WA) Pty Ltd. (Orway) has been engaged to design and monitor the test work, and provide a conceptual design targeting completion in May 2021. Bureau Veritas, an independent certified laboratory has been chosen to carry out the lab work. Both companies are located in Perth Western Australia.

The testwork to date at the Selinsing on-site lab has achieved an acceptable gold concentrate with recoveries of 8392%, containing around 30-45 g/t of gold on composite samples of Buffalo Reef fresh and transition materials. Initial marketing studies using the in-house flotation data have indicated that concentrate grades of 30 35 g/t Au may be preferred.

A diamond drilling programme was conducted at Buffalo Reef in January and February 2021 comprising eight holes for 255 metres. Core samples were blended to provide around 100kg each of transition and fresh ore at grades similar to the life of mine ore grade. The transition ore composite contained a total of 102.5kg at an average grade of 1.60 g/t Au and the fresh composite comprised 93.5kg at a grade of 1.80 g/t Au. This sample program is summarized in Table 2.

The composite samples were sent to Bureau Veritas for independent testing. The planned testwork programme features: head assays, grind establishment, initial rougher tests and rougher cleaner tests. Optional testwork includes a rougher concentrate regrinding stage and QEMSCAN mineralogical testwork.

Early testwork results have been excellent with rougher concentrate grades of up to 45.1 48.7 g/t Au for transition ore and 36.7 39.6 g/t Au for fresh ore; gold recoveries have also been good with the first two rougher concentrates recovering up to 83% of the gold from the transition ore and 93% of the gold from the fresh ore. The content of potential penalty elements such as arsenic has been below threshold levels. Rougher cleaner testwork on both ore types continues and will be completed shortly.

Results of the flotation testwork will enable Orway to complete the process engineering design including the process design criteria, major equipment summary, flowsheet, mass balance and consumables estimate. The results of the flotation testwork will also be used to advance the marketing studies already initiated. It will use the flotation test data to determine the optimum concentrate gold grade and recovery for maximizing revenue.

A procurement plan based on the project schedule has been completed. All potential major equipment suppliers have been identified and the tendering process has been initiated. The procurement strategy for long lead items has been addressed.

Mincore Pty Ltd of Melbourne, Australia has been confirmed as the detailed design engineers for phase 1 of the expansion project. The detailed engineering design contract is in preparation and will be issued once the process engineering design stage has been completed. Weekly meetings between Selinsing site and Mincore personnel have already been initiated to optimise the plant layout and equipment selection and to address any early design issues.

Vegetation clearing has commenced and selected mine waste has been used to level up the area at the construction site. Construction of the next raise of the tailings storage facility is progressing well with mine waste from Selinsing Pit 4 south extension providing Zone C fill at the saddle and south dams. Foundation preparations for the main embankment are well advanced and bulk fill is expected to commence in early May using waste from development of the Buffalo Reef pits.

A new flotation pilot plant has been ordered featuring a ball mill and classifier, conditioners, rougher-scavenger flotation, three stages of cleaner flotation and reagent pumps. The pilot plant will be used to provide concentrate samples for thickening and filtration testwork, to provide training for flotation operators, to make improvements to reagent regimes, and to individually test transition and fresh ore sources for any deviations from expected flotation response.

The East Coast Economic Region (ECER) and Malaysian Investment Development Authority (MITA) have been communicated with to initiate the flotation manufacturing license application process and proceed to amend the capital incentive allowance application to our gold concentrate production. All other permits in relation to the flotation plant construction have been obtained.

The results from the flotation testwork will be used to advance the marketing studies, which have already been initiated, to determine the optimum concentrate gold grade and recovery for maximizing revenue. We expect the testwork will conclude in May, and the Flotation Pilot Plant testing and procurement can begin in June.

The scientific and technical information in this press release has been prepared by Charlie Northfield, B.Sc.(Hons), ACSM, of Monument Mining Limited; reviewed and approved by Michael John Kitney, MAICD, MSc, MAusIMM, a Qualified Person as defined by NI43-101.

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 also advancing the Murchison Gold Projects comprising Burnakura, Gabanintha and Tuckanarra (20% interest) in the Murchison area of Western Australia. The Company employs approximately 200 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.

"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."

This news release includes 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 programs 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 certain 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 uncertainties; 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 processing 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 that 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.

No kick from shampanskoye: new law falling flat at upscale Moscow bars . Drinkers are unimpressed by Putins ruling that only Russian bubbly passes the test while French bottles must be labelled sparkling wine

Former Indian opener-turned commentator, Aakash Chopra, believes that the India-Sri Lanka series will become a no-contest if the hosts are made to field their second-string team. Due to the virus outbreak in the Sri Lankan camp, the start of the ODI series is all set to be rescheduled to either 17 July or 18 from July 13. Sri Lanka have kept their second XI ready in case of an emergency while the first XI is serving isolation. Speaking on his official Youtube channel, Aakash Chopra reckoned that

Shohei Ohtani became the sixth player to reach the upper deck of T-Mobile Park with a majestic blast for his 33rd homer, but Mitch Hanigers two-out grand slam in the eighth inning lifted the Seattle Mariners over the Los Angeles Angels 7-3. Ohtani had the most memorable shot of the night. Haniger hit the most important.

Jaipur, Rajasthan, India Business Wire India First Rajasthan Company Celebal Technologies to Receive Microsoft India Partner of the Year Award 2021 In a Short Span of 4.5 Years Since Its Inception Recognized for Innovative Solutions Hired 300+ Employees From Rajasthan During Pandemic and Plan For 1000+ by End of 2021 State Government Dream of Digital Rajasthan in Reality Celebal Technologies wins the prestigious Microsoft India Country Partner of the Year Award 2021, becoming th

New Delhi [India], July 10 (ANI): YouTuber Karl Rock of New Zealand-origin has been restricted from entering India till next year for violating multiple visa norms, government sources confirmed on Saturday.

Honduran police said Friday they've arrested five people suspected in the killing of an Italian man, who was lynched by a mob of over 600 villagers at his home in the southern part of the country.He was mobbed in revenge for allegedly murdering a homeless man, according to local officials.An angry crowd barged into the residence of 65-year-old Giorgio Scanu, a retired engineer, attacking him with stones, sticks and machetes.Police were present at the scene, but could not stop the murder due to the size of the mob. They said parts of Scanu's residence and a vehicle were set on fire.Scanu allegedly beat a 78-year-old homeless man to death on Wednesday for damaging the plants in his garden, according to police reports based on complaints from local residents.The homeless man's brother told Reuters he had a mental illness, but did not cause any harm to others.Authorities are now searching for others involved in Scanus lynching.

Matteo Berrettini became the first Italian player to reach the Wimbledon Championship singles final as he defeated Polands Hubert Hurkacz 6-3, 6-0, 6-7(3), 6-4 in the semis on Friday. He became the first Italian man to make any Grand Slam final since 1976. I have no words, really. I just know I played a great []

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