China’s 13th Five-Year Plan pointed out that the central government should support mining enterprises to upgrade technologies, guide the merger and acquisition (M&A) of small mines, and close outdated and environmentally unfriendly mines. In the Development Plan for the Nonferrous Metals Industry (2016-2020), the Ministry of Industry and Information Technology said the regional consolidation of mines should be promoted across the country to expedite large-scale development and intensive use of resources.
M&A projects in the mining industry are unlike other ones for special core assets (non-renewable mineral resources), requiring high levels of expertise in value evaluation and in evaluating various risks. During the legal due diligence on such M&A projects, attention should be paid to following aspects:
The authenticity of mineral reserves. For mining sector M&A, the mineral reserve is one of the biggest risk factors, apart from market price and conditions for mining and mineral processing. The estimation of mineral reserves involves multiple factors, such as the complexity of an ore body’s geological structure, the control and study of ore deposits, the choice of exploration grid density and engineering techniques, and the choice of estimation methods. When performing legal due diligence on such M&A, lawyers should advise the acquirer to hire experts to examine existing mineral reserves and/or commission evaluation centres where the target mines are located to review exploration reports, on top of reviewing annual inspection reports on resource exploitation, exploration reports, and examination registration reports of target companies, as well as their real production and sales. The purpose is to ensure the authenticity of mineral reserve information provided by target companies.
Legitimacy of the obtainment and disposal of mining rights. For a mining M&A project, whether the transfer of mining rights is legal is key to assessing its feasibility. During legal due diligence, lawyers should examine the following issues: the way the target company obtains the mining rights, as well as the term of validity of the rights and attaching restrictions; whether the mining rights owner has paid fees for exploration rights, fees for exploitation rights, resource taxes, compensation fees for mineral resources, and deposits for environmental restoration in mineral exploitation; whether the exploration rights owner has completed the required minimum exploration and survey input; whether the exploration rights owner has obtained the mineral exploration and survey permit for two years, or whether new mineral resources are found for further exploration and survey, or exploitation within the exploration and survey operations area(s); whether the mining rights are included in consolidation plans by the government; whether it is possible that the mining rights certificates cannot be renewed upon the deal’s completion; and whether the target company, without approval, illegally contracts for or leases mining work, transfers the mining rights, or co-operates with others in mineral exploitation.
Legitimacy of the land for mining M&A projects. As most mineral resources are under the earth, mining M&A projects will inevitably involve target companies’ use of state-owned land. When conducting legal due diligence, lawyers should examine the following issues: whether target companies have obtained the right to use state-owned land; whether the construction projects of target companies have been approved; whether the approved construction projects that need to use state-owned land have legally obtained the approval of land for construction purposes; whether target companies that involve rural collective land have been approved to rent or take over that land for construction purposes, or use farmland for other purposes; whether target companies have been approved to use grassland and forest land for production; and whether target companies have worked out and strictly implemented programmes of land rehabilitation, and water and soil conservation.
Work safety. According to the Regulation on Work Safety Licences released by the State Council, the state applies a work safety licensing system to enterprises engaged in mining, construction, the production of dangerous chemicals, fireworks and crackers, and blasting equipment for civil use. No enterprises may engage in production activities without work safety licences. Therefore, lawyers should pay attention to the following issues: whether target companies have obtained work safety licences, purchase permits for blasting equipment for civil use, licences for blasting operation organizations, and licences for blasting operators; whether target companies have paid deposits for production risks; whether the construction, operation and closure of tailing ponds, as well as the reuse of closed tailing ponds, comply with the Safety Technical Regulations on Tailing Ponds; whether new mining companies’ projects have safety reports; and whether safety equipment passes the inspection of work safety supervisory authorities.
Feasibility of M&A plans. After completing the due diligence and assessment of target companies, it is important to work out feasible M&A proposals tailored to the characteristics of target companies and comprehensive information of M&A projects. According to the Measures for the Administration of Transfer of Mineral Exploration Rights and Exploitation Rights, mineral exploration rights owners may, upon fulfillment of the required minimum exploration and survey input and approval in accordance with law, transfer the mineral exploration rights to another person. A mining enterprise having obtained the exploitation rights may, subject to approval, transfer the exploitation rights to another person for exploitation as a result of enterprise amalgamation, separation, engaging in a joint venture or co-operative venture with another person, or as a result of the sale of the enterprise assets as well as other circumstances that change the property rights of the enterprise assets necessitating a change in the main body of the exploitation rights. The acquirer can also gain control over the core assets of target companies through equity financing.
Sun Yunzhu is a partner and Zhong Ming is an associate at East & Concord Partners in Shenzhen


Adani Group has emerged as the highest bidder for two coal blocks in Maharashtra and Chhattisgarh auctioned for commercial use. Adani Group mining Chhattisgarh was the preferred bidder for the third Jharkhand coal mine.
Adani Power Maharashtra charged a 9.5% premium above the floor price to the Gondkhari coke mine in Maharashtra. The same group company CG Naturals Resources Ltd was chosen as the preferred bidder to the Jhigador coal mine in Chhattisgarh. Sunflag Iron and Steel competed for the Gondkhari exploration mine, with a peak output of one million tonnes a year. The mine is home to geological resources of 98.71 million tonnes.
Auctions for commercial coal: Three out eight coal mines are of Adani
Adani Group Chhattisgarh entities have won three out of the eight mines, which went under the hammer in the second tranche of commercial coal mining auctions. Adani subsidiary CG Natural Resources took home the Khargaon Chhattisgarh coal mine for a 6% revenue share. It had also won Chhattisgarh’s Jhigador mine on Monday. Adani Power Maharashtra meanwhile had bagged the Gondkhari Block in Maharashtra on Monday.


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Resting place for lions (in Sesarwa)
Orapa is a conventional open pit mine, situated 240 km west of Francistown. The mine began production in July 1971 and is the oldest running Debswana operation. Orapa's production continues to contribute significantly to Debswana's total carat output with 17,3 million carats being recovered in 2006.
The mine became fully operational in August 1982, when it was officialy opened by the then President of Botswana, His Excellency Sir Ketumile Masire.
||Orapa Mine The mine began operating in 1971. Orapa Mine is the biggest open cast mine in the world.|
Debswana maintains a COHSASA accredited hospital in Orapa which boasts 65 beds, 10 doctors, 2 dentists and support departments inclusive of a laboratory, radiography, physiotherapy, and pharmacy. The hospital provides health services to mine employees, Orapa community and serves as a referral hospital for the district of Boteti.
Orapa is committed to its environmental responsibilities and focuses on water conservation, waste management as well as maintenance of Orapa Game Park.
In 2004 the Orapa and Letlhakane Mines were awarded some of the highest international accolades being the National Occupational Safety Association (NOSA) five star with a score of 91.5% and ISO 14001 re-accreditation which is the equivalent of an impeccable environmental management programme. In addition, the Orapa and Letlhakane Mines achieved 2 million fatality free shifts. This means that throughout 2004 and in part of 2003 there were no fatality occurrences.
Orapa town serves as the adminstrative center for Orapa, Letlhakane and Damtshaa Mines.
Letlhakane Mine is situated 50 km from Debswana’s Orapa operation, or some 190 km West of Francistown, in Central Botswana. Letlhakane, which was first discovered during the sampling and evaluation process at Orapa, became Debswana’s second mine when it opened in 1975.The mine is managed from the larger Orapa operation.Prospecting in the region of the Orapa kimberlite pipe continues.
Water for Tortoises (In Sesarwa)
Four small diamond pipes (B/K1,B/K9, B/K12 and B/K 15) were found between 1967 and 1972 in the area 20km east of the Orapa kimberlite pipe. These pipes form the Damtshaa Mine,managed along with Letlhakane Mine from the Orapa operation.Damtshaa Mine has forecasted to yield 5 million carats from 39 million tons of ore mined over the 31 year projected life of mine.Damtshaa Mine is expected to run as an open cast mine untill 2029. The mine was officially opened by the then Vice President
of the Republic of Botswana Lieutenant General Seretse Khama Ian Khama.
“The Damtshaa Mine is the latest addition to the strengthening and consolidation of our position as the leading nation in diamond production,” Vice President Khama stated in 2002 at the commissioning of Damtshaa Mine.
OLDM produced 12,0 million carats during the year (2011:12,25 million). Ore mined amounted to 16,7 million tonnes (2011:16,2 million). Carat production includes 0,2 million carats from Damtshaa Mine, which was on care and maintenance during 2011.In preparation for the recommencement of full pit mining activity in Quarter 1 2013, Damtshaa Mine acquired its first Slope Stability Radar, which was commissioned in December 2012. Despite the loss of earthmoving equipment due to fire, the mine plan for OLDM was well executed. Resource extension projects for the Orapa, Letlhakane and Damtshaa Mines continued throughout the year and are on schedule.
2012 Production Statistics
Orapa Mine 2012 2011
Waste mined 7,675 7,069
Ore mined 13,311 13,098
Ore treated 12,251 13,250
Carats recovered 11,089 1,157
Letlhakane Mine 2012 2011
Waste 5,562 6,042
Ore mined 3,301 3,129
Ore treated 2,220 3,102
Carats produced 764 1,091
Waste mined 31
Ore mined 128
Ore treated 1,387
Carats recovered 191


One miner was killed and another injured after a tunnel roof collapsed on them Friday afternoon in the Rhino coal mine near the mouth of Huntington Canyon in Emery County.
‘Sad news from Rhino mine,’ said Joe Dougherty, spokesman for the Utah Department of Public Safety’s Division of Emergency Management, in a tweet at 6:09 p.m., three hours after the accident was reported. ‘ team has recovered body of second miner from the collapse. Heartbreaking day for Emery County.’
The rescued miner was transported to Castleview Hospital in Price, where he was being treated for undisclosed injuries and is expected to recover, said hospital chief executive Mark Holyoak.
No names were released immediately.
Technically known as the Castle Valley No. 4 mine, it has been owned since August of 2010 by Lexington, Ky.-based Rhino Resource Partners. At that time, Rhino acquired a couple of mines, reserve coal deposits and underground mining equipment from C.W. Mining Co., a company owned by the polygamous Kingston family.
A call to Rhino Resource was not returned immediately Friday afternoon.
Rhino Resource began operating the mine in January 2011.
According to federal Mine Safety and Health Administration online records, the company employed 68 people at the end of 2012, a year in which it excavated 1 million tons of steam coal. That was up from 572,000 tons in 2011. The mine yielded 633,000 tons in 2009, when it was part of C.W. Mining.
MSHA’s records show the mine had a roof fall-in which no one was hurt on Oct. 7, 2012. The mine had one injury in 146,000 hours worked during 2012, an incident rate of 1.37. The national rate is 3.23.
The company has received 11 citations from MSHA inspectors this month, none of which were deemed ‘significant and substantial.’ The most recent citation, on Thursday, dealt with ‘worked-out areas and areas where pillars are being ,’ according to MSHA’s records.
Rhino also operates the McClane Canyon mine in Loma, Colo., and has operations in central and northern Appalachia.
The Rhino mine is several miles down Huntington Canyon from the Crandall Canyon mine, where nine miners were killed and six injured in a pair of roof collapses in August 2007.


FGD: Indexing the governance and business conduct of mining practices in Indonesia
December 17, 2020 – Responsible Mining Index (RMI) is an instrument that adhere to principle that minerals and metals mining should benefit the economies, improve people’s livelihood, and respect the environment of producing countries; while also allowing mining companies gaining profits in a fair and viable way.
This instrument was initiated by Responsible Mining Foundation, a Switzerland-based independent research organization advocating for a more responsible mining practices through assessment instrument. Currently, Auriga Nusantara is adopting RMI and is conducting assessment on Indonesian mining corporations.
As a starting point, Auriga Nusantara held a virtual focus group discussion on Thursday, December 17, 2020. The main goal of the event was to disseminating what is and how RMI works, as well as obtaining inputs from stakeholders including the government, mining companies represented by mining association, and civil society organizations that work on extractive industry issues.


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The mining industry of the Democratic Republic of the Congo plays a significant role in the world’s supply of cobalt, copper, diamond, tantalum, tin, gold and produces over 70% of globally produced cobalt. It is the Democratic Republic of the Congo’s largest source of export income.Cobalt electrolytic and 1cm3 cubeDiamonds- Congo
The Democratic Republic of the Congo (DRC) is widely known to be the wealthiest country in the world, in untapped resource wealth and has an estimated US$24 trillion in untapped mineral deposits, including the world’s largest reserves of coltan (where elements niobium and tantalum are extracted) and significant quantities of the world’s cobalt and lithium. The DRC has limitless water, from the world’s second largest river, the Congo, a mild climate, rich soil makes it fertile and beneath the soil an abundance. These mineral reserves are of global importance.
COMIKA is focused on delivering sustainable value for our people, stakeholders and host communities, now and in the future. Delivering on our commitments is a key pillar of our business strategy. We believe the protection of the health and wellbeing of our people, environmental stewardship and being a catalyst for sustainable economic empowerment in our host communities are not just the right things to do, they’re good for our business.
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Right now, in the midst of challenging economic times across America, I am excited to join in celebrating an economic success story in Okanogan County. Kinross Buckhorn Mine opened its doors in October – and will soon produce gold and 180 jobs. For years, Okanogan County struggled as orchards were taken out of production and cattle were removed from public lands. Re-invigorating this mine is critical to our region’s resource based economy, our mining industry had a $2.5 billion impact in 2005.
Recently I attended the opening of the Buckhorn Mine, which was a long time coming— more than a dozen lawsuits and 18 years before the mine could be open. Despite being a resource rich country, we are opening fewer and fewer mines.
We should be taking advantage of the fact that the United States is one of the world’s largest producers and consumers of minerals and metals. We use them in our everyday life – they are essential to our economic and national security. Yet, I am concerned that we are becoming increasingly dependent upon foreign countries to provide critical minerals that are needed to make Boeing airplanes, superconductors, or military equipment. In fact, according to the U.S. Geological Survey, reliance on mineral imports has nearly doubled in the past decade. We can’t afford to be dependent on foreign countries for our minerals – like we are for our oil and gas
One reason for declining development of mineral resources in this country is an increasingly burdensome state and federal regulatory structure. In fact, Washington state regulation nearly stopped this project.
The year was 1994 and I was a newly-elected State Representative. Battle Mountain Gold owned what is now the Kinross Buckhorn mine, and state legislation threatened to stop any new mine in Washington State. Such a law would have had devastating impacts on the people and jobs in Northeast Washington.
As a Republican leader on the Resources Committee I worked to protect our mining economy in Eastern Washington. With the help of Senator Bob Morton, the mining industry and environmental groups, we went to work and ultimately passed bipartisan legislation that kept mining in Washington state.
As permitting for the Crown Jewel proceeded, we continued helping the mine navigate the bureaucracy. We brought agencies and company officials together and resolved permitting issues for companies, including mining companies, which wanted to do business in our state. In the district, we helped constituents understand mining issues, addressed their concerns and answered their questions. Today, State Representative Joel Kretz is continuing the fight to allow us to use our natural resources.
However, Battle Mountain Gold still faced more than 60 state and federal permitting hurdles. The project withstood administrative challenges to every permit and the Record of Decision as well as several legal challenges. After spending more than $85 million on the project, Battle Mountain Gold was on the verge of receiving its operating permit when it was taken hostage by the Department of the Interior and it’s Solicitor, who attempted to change 127 years of law with the stroke of his pen. The process took 15 years, at a cost of $90 million.
When I came to Congress I secured a seat on the Resources Committee so I could continue to work issues that are critical to our region. I served as Chair of a Task Force on NEPA (National Environmental Policy Act). It is through NEPA that we get Environmental Impact Statements and it is NEPA that allows projects, like Buckhorn, to get caught up in years and years of litigation.
NEPA started as a single paragraph statute in 1969—one paragraph on one page. Today, it spans 25 pages and has resulted in more than 1,500 court cases. NEPA was hailed as visionary when it was signed into law, yet has since become a process that is too often used to delay, if not halt projects, and has produced unintended consequences.
This is simply unacceptable. We live in a resource rich country and we should not be strangling ourselves economically by not utilizing the resources we have been given or by putting them off limits. We need to make some changes. Technology has advanced to allow projects to move forward in an environmentally-friendly way.
On a trade mission I led to Canada I learned that there are different, better ways to address some of the regulations we have in the United States. It is interesting to note that in Canada, once you have gone through the environmental planning process no lawsuits can take place once a permit has been issued. This means they are not faced with frivolous delays like we are with NEPA.
We need to work together to support common sense solutions to establish and maintain regulatory certainty and predictability for the mining industry and reduce excessive, duplicative and expensive permitting delays. I am glad that Kinross successfully navigated these challenges to get us to the grand opening of the Buckhorn Mine. But looking to the future we can and must do better.
–By Congresswoman Cathy McMorris Rodgers


18 coal miners die in China underground gas leak
Published: 12:51 PM, 5 December 2020 Updated: 12:52 PM, 5 December 2020
The rescuers are working to rescue the missing miners; Photo: BBC
18 miners have died and five others are missing after a carbon monoxide gas leak at the Diaoshuidong cole mine in Chongqing municipality, located in the southwest of China, on Friday.
The accident occurred while workers were dismantling underground equipment which was closed for two months, reports Chinese state media CCTV.
According to CCTV, one person was rescued from the coal mine. An investigation has been launched into the incident.
Mine collapse incidents in China is common due to poor safety regulations. Earlier in September, 16 workers were killed at another mine collapse incident on the outskirts of Chongqing when a conveyor belt caught fire, producing high levels of carbon monoxide.


Mining is an important part of the global economy, as it provides raw materials needed in industries like construction, manufacturing, and more. While the methods of using heavy equipment to mine may differ, there are certain pieces of heavy equipment used in mining that many mines have in common.
In this article, we’ll look at four common types of heavy equipment used in mining, each with its own specialized function within the mining process.
Excavators are one of the most common types of heavy equipment used in mining. They are used to move large amounts of dirt, load it into trucks and transport it. They can also be used to excavate and remove the rock as well.
The buckets on an excavator have a movable jaw which they use to scoop up dirt or rocks that can then be moved around easily. The head is equipped with a long boom on the end that lifts up material from underneath. There are two major styles of excavators, including conventional and non-conventional.
Mobile Compact Screening Plants
Mobile screening plants are used to process ores and minerals, separating valuable materials from waste. The plant can be loaded on a truck and moved to remote locations. This compact screening plant is often used for recovery operations after natural disasters where many roads have been destroyed.
They’re also used by companies that need to transport heavy equipment as they move from one mining location to another. They’re not recommended for use in close proximity to populated areas or on steep inclines because of safety concerns.
A Large Truck Loader
A truck loader is a piece of heavy equipment used to move dirt, rocks, and other materials with the aid of an automated bucket or claw mounted at its front. Truck loaders are often used for construction projects such as building roads.
They are also often used in mining, where they are called loaders or shovels. Truck loaders come in many different sizes and can be very large machines. Large truck loaders use either wheels or tracks, depending on their size, and usually carry some type of container, such as a dump body or box blade attached to their rear.
Dump trucks are another type of heavy equipment that is popularly used at mines. These trucks load materials from the mine onto a conveyor belt to transport them to a specific location on site. These trucks can range from small-capacity dumpsters for smaller loads to giant-sized dump trucks for larger loads.
Starters and Contactors
A starter is a device used to start large electric motors that power mining equipment and a device like mmwave antenna. A contactor is a device used to control the flow of electrical current between the starter and an electric motor. Both are typically located together on or near the machine they service.
The position of the starter and contactor may vary depending on what type of machinery it powers. Starters will be positioned near machines such as conveyors, pumps, mills, crushers, coal loaders, and conveyors, while contractors will be positioned near rotary drills, pumps, compressors, or generators.


Copyright © 2014 -
R&D GREEN TECH
R&D Greentech promotes the technologies provided by Oseeds
Oil Sands Environmental Development & Services Inc. is an incorporated Alberta company (operating as Oseeds Inc.), focusing on innovations in the areas of oil sands processing, oil sands tailings management and oil sands tailings comprehensive utilization.
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b. flocculation of fresh extraction fine tailings produced from bitumen extraction plants for warm water recovery and fine tailings concentration,
c. flocculation of combined tailings (extraction fine tailings and extraction coarse tailings),
d. flocculation of combined tailings and MFT/FFT.
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World wide oily sludge and oil contaminated soils are approximately 73 million tonnes per year from oil production and 12.6 million tonnes per year from oil refineries, a total market value of US35 billion dollars.
We developed direct/indirect thermal desorption system.
4) Comprehensive utilization of oil sands tailings to produce ceramic tiles
We developed a process that reuses the fluid tailings as raw materials to produce ceramic floor, wall and roof tiles and sanitary ware as well, and reuse the natural gas currently being flared/wasted for thermal energy to maintain the ceramic productions. In the meantime, the residual bitumen can be recovered and sold on the market making bonus revenue. On top of these, we can reduce the fluid tailings and solve the environmental problems by turning them into value added products for residential, commercial and industrial uses without making additional green house gas emissions.
We have developed technologies in the following areas with pending patents in each area


With the gradual reduction of coal, oil and other energy, people pay more and more attention to the use of renewable energy.
Detailed explanation of application scheme of Fctel technology industrial switch series products in mine industrial environment
Mine integrated automation control system is mainly composed of information management system, mine environment safety monitoring system, automatic control syst…
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In municipal projects such as municipal water supply, sewage treatment, industrial water production, hydrological and water conservancy, centralized heating, en…


In the past week CoalWatch Comox Valley has uncovered 18 new coal license applications that have been filed for tenures in the Comox Valley area. These coal license applications were filed with the Ministry of Energy, Mines and Natural Gas, between May 10, 2013 and May 24, 2013, by Feisa Resources Canada and Golden River Resource Inc.
Golden River Resource Inc. has filed 8 coal license applications, with 4 applications in the Anderson Lake area, just north of Comox Lake, and 4 applications in the Oyster River area. The total area covered in the Golden River applications is 9,075 hectares.
Feisa Resources Canada has filed 10 coal license applications in the Fanny Bay-Union Bay-Royston area. The total area covered in the Feisa Resources applications is 13,312.5 hectares. These Feisa applications appear to be for exactly the same coal that is targeted for the proposed Raven Underground Coal Project.
“We were stunned to see this amount of new coal license applications covering such a large area of the Comox Valley”, said CoalWatch president John Snyder. “ The applications in the Anderson Lake area are a huge concern due to their proximity to the Puntledge and Tsolum River watersheds”.
“It’s shocking there’s been no public notice on these coal license applications, other than being listed on an obscure government website. These applications are the first stage in any future coal mine exploration or development, and there needs to be more transparency and public notice when these are filed,” added Snyder.
On two recent coal license applications in the Anderson Lake and Oyster River areas, the Comox Valley Regional District (CVRD) passed a motion requesting no license be issued due to concern that coal mine exploration, and further coal mine development, impacts existing industries.
“CoalWatch intends to monitor the review process on these new coal license applications, and if the CVRD is asked to comment on these applications, we’ll notify the public so they can voice their concerns”, said Snyder. “These latest applications are the first step on the slippery slope of transforming the Comox Valley into what many fear would be a mini-Appalachian type coal mine region”.
For more information and maps of the coal license application tenures visit: http://www.coalwatch.ca


Snake Well Project
Gold & Base Metals
Giralia Resources NL (Giralia) thereafter acquired the Snake Well Project and undertook extensive exploration with a series of air-core, reverse circulation (RC) and diamond drilling (DD) programs between 2002 and 2011 to further investigate the Mixy Lode and other related quartz-vein hosted lodes. Giralia’s entire tenement holding was acquired in a takeover by Atlas Iron Ltd (Atlas) in 2011, with subsequent work being very limited in scope.
On 5 April 2013, Kalamazoo entered into an agreement with Atlas for the 100% acquisition of the Snake Well Project. Since acquiring Snake Well, Kalamazoo has undertaken compilation of past exploration data, construction of a database of historic drill data, GIS development, field assessment work, statutory reporting and mineral resource estimation, pulp sampling and several 2017 drilling schedules. Native Title agreements are in place with three claim groups. Kalamazoo successfully planned and completed a trial open pit mining, trucking and processing operation of the Mixy Lode (at Rabbit Well) in 2015 and 2016 that produced approximately 4,459 ounces of gold at 6.83g/t Au for a mill recovery of 98.1%.
Gold and Base Metals
Earlier in 2017, Kalamazoo entered into an agreement with Minjar Gold to evaluate the potential development of the A-Zone deposit. As part of this agreement, Minjar completed the drilling of 75 RC holes for 3,146m and five diamond drill holes for 228.5m, which confirmed the general position and tenor of (historical) mineralisation for up to 11 mineralised lenses at A-Zone. The mineralised zones are open at depth.
The new drilling enabled Kalamazoo to complete a Mineral Resource estimate upgrade reported in accordance with JORC 2012. Refer to the KZR ASX Announcement, June 2 2017.
This resulted in a favourable 30% increase in grade and a 15% decrease in tonnages for a total increase in contained metal of 9%.
The Mineral Resource estimate has been upgraded with more than 73% in the Indicated category.
|TABLE 1: MINERAL RESOURCE ESTIMATE FOR A-ZONE, JUNE 2017|
|JORC Category||Cut Off Grade||Total Tonnages||Gold Grade||Metal|
|2012||(g/t Au)||(g/t Au)||Ounces|
|Indicated||0.5 g/t Au||663,000||2.15||46,000|
|Inferred||0.5 g/t Au||269,000||1.98||17,000|
|Total||0.5 g/t Au||932,000||2.10||63,000|
|Notes : Resource reported up to 100 metres below surface (from 170 to 270MRL)|
|Tonnage is reported as dry tonnes|
|Rounding has been applied to appropriately reflect the precision of the estimate|
Snake Well Base Metals
Kalamazoo conducted first-pass Reverse Circulation (RC) drilling at the Royal Standard Project (Refer to KZR ASX release April, 23rd, 2017) completing 1,000 metres of RC drilling to test for the presence of near surface gold mineralised zones between the surface and the bottom mine level, about 75 metres from surface, with assays awaited.
Gold quartz lodes similar to that at the Mixy Lode are known to occur at the Royal Standard West, Calici 1 and Calici 2 prospects.
The Calici 1 and Calici 2 lodes are steeply dipping narrow high grade quartz vein lodes in close proximity to the Mixy Lode, and are associated with mineralised near surface laterite deposits, further described below.
At the Warren prospect, one kilometre south-west of Calici, encouraging historic gold results were made in a setting that is similar geologically to the Mixy Lode structure.
* Cranley, N.J., 1985. Yuin Project Non-statutory Report: Geological Assessment, April 1985, P59/20. Department of Mines and Petroleum WAMEX Open File Report A15979.
Laterite Gold deposits
Mineral Resource Estimates
Giralia had reported Mineral Resource estimates for the Mixy, A-Zone, LOP, Calisi, Royal Standard, Buckshot, Warren and Asp deposits under pre-2012 editions of the JORC Code.
Ravensgate updated the Mineral Resource estimates for the A-Zone deposit and revised the Mineral Resource estimates for the Mixy Lode and LOP deposits in conformance with the JORC Code (2012 Edition). The Calisi, Royal Standard, Buckshot, Warren and Asp deposits have been downgraded to advanced exploration projects. Current Mineral Resources for the Snake Well project area are summarised in the following table.
Snake Well Project Mineral Resource Estimates (JORC 2012)*
|Mixy – Open Pit||0.5||142||3.1||14||198||1.6||10||339||2.2||24|
|Mixy – Underground||2.0||8||5.8||1||66||4.4||9||74||4.5||11|
* Refer to Table 1 in the Independent Geologist’s Report, Kalamazoo Prospectus – October 2016
- Open Pit = Up to 100m below surface (>190m RL);
- Underground = Below 100m from surface (<190mRL);
- Tonnage is reported as dry tonnes;
- Rounding has been applied to appropriately reflect the precision of the estimate.
Development and Production
Earlier this year, Kalamazoo entered into an agreement with Minjar to evaluate the potential development of the A-Zone deposit. As part of this agreement, Minjar completed the drilling of 75 RC drill holes for 3,146m and five diamond drill holes for 228.5m, which has enabled Kalamazoo to complete the Mineral Resource estimate upgrade. Minjar also surveyed the collar locations of the majority of the previous drill hole collar locations.
Following this drilling program Minjar and Kalamazoo have entered into a first right, ore processing agreement for Minjar to treat oxide ore from the A-Zone Project and potentially from Kalamazoo’s nearby Mixy deposit (see ASX announcement dated May 5th, 2017).
Kalamazoo will also commence studies to assess the base metal potential contained within the Snake Well Gold Project area, notably at Conquistador (zinc) and deeper (fresh) portions of the A-Zone (copper and zinc).
Kalamazoo Resources Ltd Prospectus, October 2016 – located elsewhere on this website.
- See historical results as reported to the ASX by Giralia at www.asx.com.au/asxpdf/20041021/pdf/3nb61943p978j.pdf


.........BHUBANESWAR: With only four weeks left to meet the deadline set by the Supreme Court for recovery of 100 percent compensation from mining companies for the excess minerals extracted, all eyes are on the apex court which is likely to address some issues raised by the miners on December 5.
Meanwhile, the Supreme Court appointed Central Empowered Committee (CEC) has given an opportunity to 102 mining companies to air their grievances on matters relating to the penalty imposed by the court.
After rejection of their review petitions, a majority of the mining companies had moved the apex court seeking relief on three counts. Since they have already paid royalty and taxes, and also borne logistics cost, the amount should be deducted from the compensation they have been slapped with. Besides, cost of the minerals extracted but not sold should be excluded from the penalty amount, miners demanded.
Pointing out anomalies in the calculation of ore production, the petitioners had requested the court to give them an opportunity for reconciliation with the production figures of the State Government. While accepting the demands of the miners, the apex court had directed the CEC on November 22 to reconcile the production figures of mining companies with the Government figure and report the matter to it.
“We broadly raised three issues before the CEC which will submit its report to the Supreme Court. The decision of the apex court will be final,” said Prabodh Mohanty, secretary of the Eastern Zone Mining Association (EZMA).
In its August 2 order on illegal mining in the State, the Supreme Court had directed the State Government to recover 100 per cent cost of excess minerals (iron ore and manganese) extracted by the mining lease holders. Rejecting the CEC recommendation for recovery of 30 per cent of the production cost as compensation, the apex court had ruled that there cannot be compromise on the quantum of compensation to be recovered from the errant miners.
The CEC had worked out the compensation amount to be recovered from the defaulting mining lease holders at `17,567 crore.


The National Union of Mineworkers on Tuesday said a miner was killed at Harmony Gold’s Tshepong Mine in the Free State after being crushed by a locomotive.
In another incident, a worker was killed at AngloGold’s Tau Lekoa mine in similar circumstances.
NUM has accused mining companies of being delusional if they believe they have improved safety standards in South Africa.
The union’s spokesman Lesiba Seshoka said, “We will down tools if the company refuses to adhere to safety standards.”
The union added that Harmony Gold has the highest number of mining-related deaths in the industry.
[Story by Camilla Bath appeared on Eyewitness News]


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Targets: Copper-gold porphyry intrusions and associated skarns in the Sayan-Altaids arc system
Area: ~82,506 ha, or ~825 km2
Location: Khovd Aimag, western Mongolia
Ownership: 4 tenements (Yol) owned 100% by Altan Rio & 5 tenements (Chandman) owned 100% with a 2.5% NSR
The Chandman-Yol property area is located in mountainous basin and range country in eastern Khovd Aimag, western Mongolia, about 1,050 km west of the capital Ulaanbaatar. It consists of 9 tenements, all of which are 100% owned by Altan Rio, with the 5 Chandman tenements being subject to a 2.5% NSR.
Altan Rio has secured an extensive tenement position focussed on epigenetic, porphyry copper-gold mineralisation, and stratabound skarn copper-gold mineralisation related to Cambrian-aged granitic intrusions, and gold-copper mineralised fault zones. Mineralized zones span a distance of 60+ km across the project area, representing a new large-scale copper-gold district.
Two drilling campaigns consisting of 17 diamond drill holes (5,167.7 m) were completed in 2009 and 2010. Significant gold-copper mineralisation was intersected in 3 of these recently completed drill holes (CH-09, CH-10 and CH-16). The best intersection was in the DDH CH-09 Del target skarn zone:
- 32.13 m @ 1.49 g/t gold, 0.60% copper and 8.07 g/t silver; including 10.39 m averaging 2.71 g/t gold, 0.91% copper and 12.11 g/t silver.
Further gold-copper mineralisation was intersected in DDH CH-10:
- 10.75 m @ 1 g/t gold, 0.65% copper and 4.8 g/t silver.
The geologically significant hole DDH CH-16 was aimed at the upper reaches of a deep-seated IP chargeability feature, forming part of an apparent shell around the porphyry intrusion at depth. The hole was completed to a depth of 524 m, the limit of the man-portable drill.
- A marked structural zone was crossed at 469 m, below which strong potassic alteration and sulphide stockworking became much more abundant. Assays in the 55+ m wide porphyry-style alteration zone ranged up to 0.28% copper and 1.5 g/t gold with elevated arsenic and silver values as well.
It is apparent that the drill just pierced the outer margins of one of the large high-amplitude IP features of the hypothesized “sulfide shell”.
Recently completed soil geochemical surveys carried out by Altan Rio have shown pronounced copper-gold-zinc anomalies centred on and distal to a Cambrian-age porphyry intrusive complex (called the “KY intrusion”) approximately 4 km in diameter. The KY skarn zone southeast of the porphyry intrusive is the locus of strong copper-gold-silver-zinc geochemistry. Complex fault structures located to the west and southwest of the KY skarn zone show gold-copper-molybdenum soil geochemistry.
Detailed IP and ground magnetic surveys have also been carried out since 2007. IP and Resistivity surveys show that a number of strong anomalies are present within the KY intrusion itself, most strongly developed at depth, and within structural zones marginal to the intrusion. The IP chargeability feature at depth in the KY intrusion is a large-scale concentric feature nearly 2 km in diameter and up to 1 km in vertical extent, with a high resistivity core zone – geometry typical of other large, upright, copper-gold porphyry systems.
The ground magnetic data shows a large annulus of pronounced magnetic anomalies surrounding and distal to the KY porphyry stock. The reduced to pole (RTP) magnetic data also shows several linear features, interpreted as major fault structures trending northeast-southwest and northwest-southeast across the southeastern flank of the porphyry intrusive complex.
Encouraged by the 2009-2010 results, the main higher chargeability portions of the anomalies were targeted in the 2011 field-season with a further 13 diamond drill holes (7,814.4 m). All drilling was wide-spaced, testing an area of about 4 x 3 km. The following results were achieved:
- All holes drilled intersected elevated metal values, with frequent 0.5% Cu and 0.5 g/t Au from 1 to 3 m core samples
- Highest gold grade achieved: CH-27, 1 m @ 28.02 g/t in a “sea” of low level Au and Cu
- Reconnaissance hole CH-09 returned an impressive 32.13 m @ 1.49 g/t Au and 0.6% Cu
- CH-28 silverintersections in the KY porphyry intrusion:
- 13.2 m @ 43.12 g/t, including 1 m @ 106.31 g/t and 1 m @ 118.86 g/t
- 39.6 m @ 24.57 g/t, with 2.5 m @ 128.3 g/t and 2.2 m @ 114.26 g/t
2012 Drill Results
The 2010 and 2011 exploration seasons at the Chandman-Yol project produced several new and highly promising targets from a combination of geological mapping, large geochemical survey grids and reconnaissance IP profiles. The two most advanced targets, Ovoot and Takhilt, were drilled in 2012.
Ovoot – Discovered by reconnaissance profiling, this high amplitude IP chargeability anomaly (35+ msec), the strongest anomaly identified on the Chandman Project to date, is at/near surface and of substantial size, with dimensions of 2+ km long, 1 km wide, and possibly 500 to 800 m thick. Copper staining is visible in vertical fractures at surface directly above the IP feature, which provides strong evidence of geochemical leakage from depth.
Two holes were drilled at Ovoot in 2012, 1.8 km apart, to test two concealed but coincident IP and magnetic anomalies. Both holes encountered only low-level gold and copper anomalies. Further drilling is warranted at Ovoot, though of lesser priority than Takhilt, to test areas of coincident geochemical and IP-Magnetic anomalies. The Ovoot structure is large – 2+ km long, 2+ km wide – and cannot be considered adequately tested with only two wide-spaced reconnaissance holes.
Takhilt – An outcropping copper-gold porphyry intrusion with disseminated copper oxide staining named Takhilt was discovered in 2011 by geological mapping in the northern Yol licenses of the project. Follow-up soil geochemical sampling delineated a robust copper soil anomaly about 600 m in diameter. Rock chip sampling locally assayed up to 30 g/t gold and +1% copper. Targeted IP profiles imaged moderate to strong (30+ msec) chargeability responses that extend to about 2 km along strike, and remain open to the east.
Five moderately wide spaced holes were completed at Takhilt in 2012 and several new zones of gold and copper mineralization were intersected, including a shallow intercept beginning at 16.30 m from surface of 8.05 m at 1.77 g/t gold, including 2.5 m @ 5.38 g/t gold. These zones are open down dip and along strike and warrant follow-up drilling along the entire 1.5 km extent of the Takhilt structure.
The project is fully permitted for all exploration activities and enjoys strong support from local government administrations.
The Chandman-Yol area lies within the Khyargas Nuur sub-terrane of the Pre-Cambrian to Early Paleozoic “Lake” Terrane. The structure of the area can be described as NW trending antiform structures expressed by mountain range tops. The geology at Chandman-Yol is dominated by numerous fault slices of Vend-Cambrian metasedimentary rocks (sandstone, siltstone, argillite, limestone) and volcaniclastic units. Intruded into the Vend-Cambrian sequence are numerous island arc type calc-alkalic intrusives dating to the Mid-Cambrian. A specific biotite granite phase is linked to mineralisation (Cu, Au, As, Mo, Ag, Sb, Zn, Pb) and shows broad zones of intense quartz-sericite-pyrite (+chalcopyrite) alteration, thought to represent a high-level near-typical Cu-Au porphyry system with distal iron-rich skarns.


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In recorded history, 30% of all the gold mined in the last 120 years came from South Africa in the area called the Rand. This is in the Witwarstrand Basin in South Africa. Although South Africa is not the current leader in the world, it held that position from 1905 until 2007. Currently South Africa mines 10% of the world''s new gold.
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The Roy Hill Mine has an initial mine life of 17 years, with a likely extension beyond that of 12 years. Roy Hill is an owner operator, conventional open pit, drill and blast, truck and excavator bulk mining operation.
Over the initial life of the high grade project, 4,957Mt (dry) of material will be moved. This equates to an average yearly mining rate of 270Mtpa (dry), to produce approximately 72Mtpa (wet) of Run-of-Mine (ROM) ore feed for the processing plant. This makes Roy Hill one of the largest mining operations in the Pilbara.
The Roy Hill Mine has an average strip ratio of slightly over three tonnes of waste and low grade mineralisation to each tonne of ore. A quasi strip mining approach is utilised where the bulk of the overburden and waste is dumped back into the previously mined out pit voids. This process helps minimise haulage distances for waste rock, as well as the footprint of mining activities.
Waste dumps are progressively rehabilitated over the life of the mine, to ensure that mined areas are rehabilitated to their natural state as quickly as possible.
Multiple pits are in production at any one time, with each pit being broad and relatively shallow in nature, with the deepest pit prescribed in the life of mine plan being less than 110 metres in height.
ROM pads and crusher stations are located in close proximity to each pit with the crushed ore then conveyed to the processing plant. Three crushing stations are in operation at any one time, which provides operational flexibility. Large ROM stockpiles ensure suitable material is available for the processing plant at all times.
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29 Jun 2016
S$100 million Acquisition of Granite Mining, Quarry Extraction and Architectural Stone and Interior Fit-Out Company by Anchor Resources Limited, together with S$3.2 million Placement of Shares
Danny Lim and Caitlin Huang from the Capital Markets / Mergers & Acquisitions Practice Group is advising Anchor Resources Limited ("Anchor Resource") in its (i) proposed acquisition of GGT Manufacturing Sdn. Bhd. ("GGTM") at the indicative consideration of S$100 million, which constitutes a very substantial acquisition; (ii) proposed diversification of business into mining and quarry extraction of dimension stone granite as well as architectural stone and interior fit-out; and (iii) proposed placement of 30,770,000 new ordinary shares in the capital of Anchor Resources at the issue price of S$0.104 per placement share.
Anchor Resources is listed on the Catalist board of the Singapore Exchange Securities Trading Limited. Headquartered in Malaysia, its existing business is in the exploration, mining and production of gold for sale in Malaysia. It currently holds concession rights to the Lubuk Mandi Mine and Bukit Panji Property in Terengganu, Malaysia.
GGTM is principally engaged in dimension stone granite mining and extraction, and architectural stone and interior fit-out. It owns an exclusive dimension stone granite concession in Hulu Terengannu, Malaysia, and is currently the sole dimension stone granite operator in Terengganu. The majority shareholder of GGTM is Mr Lim Chiau Woei, the Managing Director and a controlling shareholder of Anchor Resources.


Spectrum has conducted remedial site investigations, risk assessments, feasibility studies, and sampling programs. We have evaluated sites for classification as Hazardous Waste Sites pursuant to SARA and CERCLA. We have prepared NCP documents (Field Investigation Work Plans, Sampling and Analysis Plans, Community Relations Plans, and Health and Safety Plans).
A preliminary evaluation of reclamation alternatives of the Colorado Tailings in
was completed in 1983 prior to EPA involvement (after 9 additional years of study and $8 MM later, the EPA decided to implement in principle the Colorado Tailings Plan that we recommended).
We worked very closely with the Army Corps of Engineers and their contractor (M-K) on the removal of tailings and the reconstruction of the South Fork of the
portion of the Bunker Hill Superfund project. M-K excavated until the tailings were removed, and
surveyed the resulting landforms and designed the river floodplain, wetlands, and floodplain as they were uncovered.
Environmental Assessments (EA's) were prepared for the Pryor Mountain 89 uranium project, the Benbow Mine and Mill chrome project, and the Mouat Mine chrome project. NCP documents (Field Investigation Work Plan, Sampling and Analysis Plan, Community Relations Plan, and Health and Safety Plan) were prepared for the Bannack State Park, the Bannack Mining District and the West Butte HMO hardrock projects.
Spectrum prepared the mine engineering, geology, and geotechnical analysis of roads and tailings embankments for the East Boulder EIS. We also drafted several of the EIS exhibits.
Spectrum developed the Supplemental Environmental Impact Statement to assess all potential reclamation alternatives developed out of a lengthy consultation process involving the EPA, Fort Belknap Indian Reservation, the BLM, and the State of
for two large bankrupt gold mines.
Spectrum developed the Supplemental Environmental Impact Statement to address all potential reclamation alternatives for the large Golden Sunlight open pit gold mine. The work involved developing technical assessments and conducting a consultation process with the opposing environmental groups, EPA, BLM, DEQ, and Placer Dome.


Mr. Schubbe has a M.S. degree in Geological Engineering, and is a licensed Professional Geologist with over 30 years of environmental experience. As a senior level professional Mr. Schubbe has significant experience in development and oversight of environmental programs for both the mining industry and the government. Mr. Schubbe’s experience includes roles as a Director of Environmental and Safety, Senior Project Manager and Hydrogeologist, solid waste facilities management and operation, certified project management professional (including U.S. DOE nuclear facility environmental restoration and closure), certified ISO 14001 auditor, and mining project land management. Environmental management experience includes numerous site investigation and remediation projects, including environmental due diligence and brownfields projects and management of environmental surveys such as wetland delineations, threatened & endangered species surveys, archeological/cultural surveys, etc. and baseline environmental surveys/studies for mine permitting.


The Bucket Wheel Excavator (BWE) is the main piece of harvesting equipment used in open-pit lignite or brown coal open-pit mines worldwide. Despite the continuous increase in size, productivity and technical sophistication in recent decades, they have not adapted to the changes of operating environment. In this respect, the increasingly frequent occurrence of hard inclusions – in terms of layers, boulders and other forms – has revealed a consistent failure of BWE-s to meet this challenge. This paper, inspired by the research project RFCR-CT-2015-00003-BEWEXMIN „Bucket wheel excavators operating under difficult mining conditions including un-mineable inclusions and geological structures with excessive mining resistance” deals with preliminary considerations and results that aim to contribute to solving this problem.
József András, József Kovács, Endre András, Ildikó Kertész and Ovidiu Bogdan Tomus
The bucket wheel excavator (BWE) is a continuous working rock harvesting device which removes the rock by means of buckets armoured with teeth, mounted on the wheel and which transfers rock on a main hauling system (generally a belt conveyor). The wheel rotates in a vertical plane and swings in the horizontal plane and raised / descended in the vertical plane by a boom. In this paper we propose a graphical-numerical method in order to calculate the power and energy requirements of the main harvesting structure (the bucket wheel) of the BWE. This approach - based on virtual models of the main working units of bucket wheel excavators and their working processes - is more convenient than those based on analytical formulas and simplification hypotheses, and leads to improved operation, reduced energy consumption, increased productivity and optimal use of available actuating power.


President Trump lauded the opening of the nation’s first new coal mine in recent memory. Corsa Coal Company will operate the mine in Somerset County, Pa. – outside of Pittsburgh. Corsa CEO George Dethlefsen said the mine will be a boon to the struggling local economy. He praised Trump’s easing of regulations and encouragement for fossil fuel exploration. Dethlefsen told Leland Vittert that for the 70 positions available in the mine, 400 people applied. “It’s a hard day’s work every day, but it’s worth it,” one miner said. Vittert said the news contrasts with Hillary Clinton’s message that she would “put a lot of coal miners out of work.” Pennsylvania Gov. Tom Wolf (D), who endorsed Clinton, joined the mine company in watching a video message from Trump commemorating the occasion. R.J. Harris, a longtime host on Harrisburg’s 580-WHP, said the mine opening is a “shot in the arm” for the Keystone economy. Pennsylvania was once home to the world’s largest coal breaker, the St. Nicholas Breaker in Mahanoy City. In its heyday, the breaker could process 12,000 tons of anthracite coal each day, according to the Allentown Morning Call. Demolition began on the Schuylkill County behemoth in 2015 – a sign of the times in the coal region. Though, Harris said he is optimistic that Corsa’s mine opening is evidence that Trump can help turn the region’s economy around. The mine will reportedly be producing metallurgical or bituminous coal – which is used in steel-making – while anthracite is the type often used in energy production.
Great news for Somerset County, PA!! Another one of Trump’s promises kept. Excellent!! 🙂


Sun-Impex is a leading integrated Natural minerals company based at Jodhpur(Rajasthan)India, involved in processing a variety of natural mineral products since 14 years.
We are dealing in various natural mineral powders- Natural Sodium Bentonite powder/ Drilling Mud, Diatomaceous earth/Reactive Silica/diatomite/kieselguhr, Amphorous Silica, Soap Stone, China Clay (Kaolin), Silica Sand, Quartz.
We are one of the biggest Minerals manufacturers and exporter company from India. We are also biggest manufacturer for Diatomaceous earth/Reactive Silica/kieselguhr in India. Over current capacity for Diatomaceous earth/Reactive Silica/kieselguhr is 10000 Ton per month. We are also producing 5000 Mton bentonite per month also.
We have good quality Silica Sand/Glass Sand mines and washing units with more then 20000 MT production capacity.
Sun-Impex is a professionally managed organization that has considerable expertise in dealing with various Minerals. We provide unmatched quality minerals. We do not compromise with the superior quality of our entire products. We offer different types of minerals to our customers at the most reasonable price.
This company is run by young entrepreneurs, dedicated administrative staff and mining workers. With enthusiastic work environment at Sun-Impex Minerals, staff and co-workers give their best output. Sun-Impex have built goodwill amongst their reputed clients and peers as well.


$10,537,000 in grant funding to support safety and health courses, and other programs. MSHA awarded grants to 46 states, the Navajo Nation, Guam, and the Commonwealth of the Northern Mariana Islands. Grantees will use the funds to provide miners with federally mandated training.
The grants cover training and retraining of miners working at surface and underground coal and metal and nonmetal mines, including miners engaged in shell dredging or employed at surface stone, sand, and gravel mining operations.
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Alliance is an Australian mining company focused on operations in South Australia and Western Australia
Alliance Resources is an Australian gold, iron and base metals exploration and development company with projects in South Australia and Western Australia. The entity was listed on the ASX up to 19 July 2022 however, following a formal takeover and compulsory acquisition process, has now become privately owned by interests associated with Mr Ian Gandel, a mining entrepreneur with extensive experience in the mining industry since 1994.
The Company’s flagship asset is the Wilcherry Project, located within the Gawler Craton on the northern Eyre Peninsula near the township of Kimba in South Australia. Other projects include the Nepean West and the Kalgoorlie South Projects’, which are located within the Kalgoorlie region of the Eastern Goldfields, WA.


Vipeak Raymond Grinder(Raynond Mill) is suitable for producing minerals powder, which is widely used in the metallurgy, building materials, chemical, and mining industry. It can be used for grinding barite, calcite, potash feldspar, talc, marble, ceramic, glass and some other material that Moh’s hardness degree is below 7, humidity is in 6% and non-flammable non-explosive minerals. The final product size is adjustable as various required in the range of 100-325 meshes.
Working Principle of Vipeak Raymond Grinder(Raymond Mill):
Grinder Machine Price In Malaysia
First material should be crushed into the desired size by Jaw Crusher, and delivered to the Silo by Bucket Elevator. Our Designed Vibrating Feeder will feed the material into the grinding room. With the air current from the Air Blower, those powder conforms to the fineness degree will be blew into the cyclone collector and those powder that is not consistent with the desired size will return to the grinding room to be re-ground. The whole system is airtight circulation, and the circulatory flow under the negative pressure.Want to get Raymond Grinder Price
?Just contact us!We are waitting for you!
Raymond Grinder(Raynond Mill) Technical Parameters
||No. of Roller (Pcs)
||Ring Inn Diameter×Height (mm)
||Max. Feeding Size (mm)
||Fineness of finished product (mm)
|Overall Dimension (L×W×H) (MM)


July 18, 2017 - KEFI Minerals, London-listed gold and copper deposits exploration and Development Company, has agreed a finance package for the construction of its gold mine project in Ethiopia. The new agreement is expected to augment Ethiopia’s gold production. Gold is Ethiopia's main mineral export and has been mined since ancient times, primarily as alluvial or free gold. At present, Ethiopia has a single large-scale gold mine, Lega Dembi, in the southern area of the country, owned by Midroc (98%) and the Ethiopian government (2%).
KEFI’s Tulu Kapi project in the South western part of Ethiopia has a probable Ore Reserve of 1.0 million ounces and Mineral Resources totaling 1.7 million ounces. Planned gold production at Tulu Kapi is forecast to be circa 115,000 ounces per annum at an AISC of US$777/ounce over the initial eight years of mining the open pit.
The new KEFI’s finance package deal with Oryx, an infrastructure specialist company, is to put up US$135mln in new debt through a lease and payback arrangement that will also see it become the processing plant operator.
Mining will be carried out by contractor Ausdrill. The package will see a new special purpose vehicle set-up for the mine that initially will be 75% owned by KEFI.
Harry Adams, KEFI’s executive chairman, said a development funding approach was more appropriate for start-up purposes than bank debt due to its longer 9-year tenor and as repayments started 30 months after drawdown.
“At a gold price of US$1,250/oz, Tulu Kapi's robust project cash flow projections, combined with the innovative financing proposal from Oryx, looks to well serve KEFI's objective to rapidly repay debts whilst implementing our targeted exploration programs and commencing dividends during the early production years.”
Due diligence still has to be carried out and KEFI said the door is still open for other finance offers but added the Oryx proposal had significant advantages.
These include low start-up capital, minimal equity dilution and the nine year term.
Coupon on the debt is 8% and KEFI believes that on cash flow projections already published it can repay US$135mln within four and half years at a gold price of US$1,250.
If the deal with Oryx is concluded, it will leave KEFI needing to find a further US$30mln to fund the project completely.
Methods to fund this potentially include a loan from the Ethiopian Development Bank, new equity or a project level investment into the special purpose vehicle. Work is expected to start on the mine before the end of 2017.
Source: Proactive Investor UK


Study on the Regularity of Surface Collapse in Goaf using UAV Remote Sensing Technology
Keywords:Analytic Hierarchy Process (AHP), CRITIC Method, Fuzzy Comprehensive Evaluation, Surface collapse, UAV remote sensing, GIS
AbstractUAV remote sensing technology is used to analyze the characteristics of surface collapse and evaluate the degree of damage in the mining area, and the regularity of surface collapse in the mining area is studied. The distribution and variation characteristics of surface collapse pits and surface cracks and surface deformation characteristics are obtained from UAV images. Taking the area of collapse pits, the depth of collapse pits, the width of cracks, the drop of cracks, the density of cracks, surface subsidence and surface inclination as the evaluation factors, the fuzzy opinion centralized decision-making of the classical fuzzy comprehensive evaluation method is introduced into the combined weighting method, and the fuzzy comprehensive evaluation model based on AHP-CRITIC method is established. The results show that: (1) From August 2020 to June 2021, 125 surface cracks have increased; Three new collapse pits are generated, with a maximum area of about 323m2 and a maximum depth of about 21m; The surface deformation in the south of the mining area is obvious, forming a settlement funnel. (2) The severe damage degree of surface collapse is mainly distributed near the surface collapse pits, the moderate damage degree is mainly distributed in the central and southern part of the study area, and the mild and slight damage degree is mainly distributed in the periphery of the ore body.
Gao, G. (2018). Characteristics of ground collapse and prediction of damage degree in central and southern Lingwu mining area[D]. Xi’an University of Science and Technology.
He, W., Xiang, M., Liu, H., et al. (2016). Ground collapse characteristics and environmental problems in Yushenfu mining area. Coal Geology & Exploration, 44(05): 131-135
Huang K, Chen W, Wen J.S., et al. (2016). Study on types and influencing factors of ground collapse in goaf of Inner Mongolia coal mine. Geotechnical Investigation & Surveying, 44(12): 13-19.
Su, L., & Zhang, X. (2013). Using filling technology to promote the coordinated development of mine resource development and environmental protection. Mining and Metallurgical Engineering, 33(03): 117-121.
Gao, G., Hou, E., Xie, X., et al. (2018). The monitoring of ground surface subsidence related to coal seams mining in Yangchangwan coal mine by means of unmanned aerial vehicle with quad-rotors. Geological Bulletin of China, 37(12): 2264-2269.
Wang, X. (2015). Research status of mining subsidence monitoring based on DInSAR Technology. Metal Mine, 2015(S1): 65-71.
Li, Q., Deng, H., & Zhou, Y. (2015). Application of 3D laser scanning in monitoring ground subsidence and deformation in mining area.. The Chinese Journal of Geological Hazard and Control, 25(01): 119-124.
Yu, S., Wang, Z., Liu, G., et al. (2016). Application of InSAR Technology in surface deformation monitoring of Yishu Fault Zone. Journal of Geomatics Science and Technology, 33(02): 150-156.
Hou, E., Shou, Z., Xu, Y., et al. (2017). Application of UAV Remote Sensing Technology in coal mining surface subsidence monitoring. Coal Geology & Exploration, 45(06): 102-110.
Zhang, H, Lu, X., Zhang, X., et al. (2020). Dynamic extraction method of UAV video key frame image for mine supervision. Remote Sensing Information, 35(01): 112-116.
Liu, G., & Lv, J. (2013). Research on key technologies of mining area change monitoring based on UAV. Bulletin of Surveying and Mapping, 2013(S1); 95-98.
Tang, H., & Wei, F. (2011). Fuzzy comprehensive evaluation of land damage degree in coal mining. Geomatics & Spatial Information Technology, 34(05): 269-271.
Wang, S., & Liu, Y. (2015). Evaluation of land damage degree in mining area based on improved fuzzy comprehensive evaluation model. Chinese Journal of Eco-Agriculture, 23(09): 1191-1198.
Cheng, L., Zhao, Y., & Chen, L. (2017). Evaluation of land damage degree in coal mining subsidence area with high groundwater level. Transactions of the Chinese Society of Agricultural Engineering, 33(21): 253-260.
Sun, Q., Bai, Z., Cao, Y. (2017). Analysis of land damage and reclamation process in coal mining area based on ecological risk assessment. Chinese Journal of Eco-Agriculture, 25(06): 795-804.
Zhou, X., An, Y., Xu, W., et al. (2009). Fuzzy evaluation of cultivated land soil fertility based on GIS and improved analytic hierarchy process — A case study of Puan county, Guizhou province. Chinese Journal of Soil Science, 40(01): 51-55.
Hui, A., Li, M., Lu, Z, et al. (2020). Research progress and direction of structural parameter optimization of pillarless sublevel caving in China. Metal Mine, 2020(03): 1-11.
Zhou, C.B., Yao, Y.K., Guo, L.W., et al., 006). Numerical simulation of independent advance of ore breaking in the non-pillar sublevel caving method Journal of China University of Mining and Technology, 17(2). https:// doi.org/10.1016/S1006-1266(07)60092-3
Yang, L. (2000). Principle and application of fuzzy mathematics. Guangzhou: South China University of Technology Press.


Six months after first hunger death, workers in jharkhand's coal mining hub fear they may be next after 45-year-old baijnath ravidas, died of hunger, the residents in the tarabagan area fear that they may be next. There are a great many risks to your health which can be linked to coal mining operations though there are obvious workplace hazards associated with working in a coal mine, these are not the only risks associated with mining activities. The history of coal mining goes back thousands of years it became important in the industrial revolution of the 19th and 20th centuries, when it was primarily used to power steam engines, heat buildings and generate electricity.
Coal mining news explore related coal articles for more information on the coal mining industry. Ohio department of natural resources, division of mineral resources management history of ohio coal mining & regulation. The coal industry may have declined in the last decade because of the rise of cheap natural gas, but a coal mining method called mountaintop removal is still taking place, particularly in central appalachia.
Coal is a resource that can be obtained through mining coal rocks or concentrated coal rocks, requiring level 30 mining, in various places around runescape . Over 7269 million tonnes (mt) of hard coal are currently produced worldwide and 787 mt of lignite coal is mined by two methods: surface or 'opencast' mining, and underground mining. Mining news and commentary from around the globe daily updates on gold and commodity prices, exploration, mine development and mining company activities. The latest coal news, industry trends and events from world coal magazine, including mining, handling, coal bed methane and special reports.
Overburden (rock above the coal seam), and interburden (rock between coal seams) overburden and interburden are disposed of in adjacent valleys because the broken rock will not all fit back into the mining pit, and disposal alternatives are limited the usual method of disposing of this excess . Compare (company ticker last price (native) change (native) change (%) day low day high 52 week low 52 week high volume mc (m cad$). History of coal mining in illinois extracted from a compilation of the reports of the mining industry of illinois from the earliest records to 1954 5 the discovery of coal.
The coal authority is working with scientists from the university of sheffield to research materials to improve the efficiency of mine water treatment schemes. Coal mining in america today’s modern coal mines produce about a billion tons of coal each year for electricity generation and steel making coal mining uses state-of-the art technology and equipment to maximize safety and efficiency. I was visiting pennsylvania and read about the tour-ed coal mine in tarentum and it was top of my list to see i was warmly more.
Adani enterprises coal mining volumes are expected to be 80 million tonnes by the end of the fiscal year 2021, from 1217 million tonnes at the end of the fiscal year 2017, adani ports and special economic zone ltd's techno commercial head, sudhir kumar agrawal, said at the india coal conference in new delhi. On the indiana-westmoreland county line the earliest record of actual coal mining in pennsylvania is shown on a “plan of fort pitt and parts. Note: click on the column headings to sort ascending/descending or use the search box to narrow results by keyword or term no data found more fatalities are shown than listed in the msha database due to the inclusion of federal inspector fatalities that are part of osha records subsequent . Let’s start with the official bureau of labor statistics numbers currently, the bls counts about 50,000 coal mining jobs in the united states -- total.


YTH belt drum motor pulleyconveyorroller
HuaYun brandconveyorroller/idler has been exported to more than 30 countries all over the world and particularly suitable for South America market. we have professional engineers and all of them have rich experience in this field, we can design the goods independently and make roller by your design
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HuaYun brand conveyor roller/idler have been certificated by the ISO9001/2008 and Safety Certificate for Mining Products. With high quality and competitive prices, our products enjoy a good reputation both in home and the abroad.
our rollercanmeet the standards GB, ISO, CEMA, DIN, JIS, ETC
Production capacity: as usual 5000 pieces/ week andurgent order is acceptable
Application of conveyor roller idlers
Conveyor roller/idler are used in areas such as coal mining industry, cement industry, power plant and port etc.
Our Huayun conveyor machinery Limited Company is a factory producing all kinds of conveyor roller/idlers.
Friction idler/roller: it can effectively prevent the belt running deviation.
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Conveyoridler Testing standard
Prodcution process of Mine belt conveyor roller
A line: conveyor roller pipe processing line
conveyor roller pipe type one: removethe dust
steel roller pipe type two:cut the long roller pipeinto short
Our conveyor roller are used electric static painting or as per customers’ requirements
B Line: conveyor roller shaft processing line
Roller shaft type one:cut the shaft into short
Idler shaft type two:milling the shaft
A line +B line= Conveyor roller idler
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The latest technology for a wide range of applications
- Perfect for large scale revegetation projects
- Stainless steel tanks provide a long service life
- Durable design allows for abrasive mixes
Available in both trailer and truck configurations, Apex hydroseeding equipment lets you quickly discharge a wide variety of mixes at long distances using high powered vortex pumps. They are ideal for jobs ranging from landfills, erosion control, landscaping, dust control in mining operations, fire suppression, land reclamation, and more.