Business Overview Strata, Ventilation & Consumable Solutions

Business Overview Strata, Ventilation & Consumable Solutions

CONTENTSExecutive Summary 3

Strata Management 4

Product Application 5 General Consolidation & Water Sealing 9 Raise Bore Shaft Curtain Grouting 10 Long Anchor Support & Spiling 11 Rocsil Foam 12 Cavity Filling with Rocsil Foam 14 Foam Factor & Density 15 Electric Flowmeters 16 Bulk Chemical Handling System 17 Surface to Seam 18 Remote Rocsil Emergency Sealing System 19 Ventilation Control Devices 21 Micon Seals 22 Consumables & Products 25 Technology & Innovation 26 HSEQ 30 Training 32

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2 | WILSON MINING | A MASTERMYNE COMPANY | STRATA, VENTILATION & CONSUMABLE SOLUTIONS

WILSON MINING | A MASTERMYNE COMPANY | STRATA, VENTILATION & CONSUMABLE SOLUTIONS | 3

THE RIGHT PARTNERThe acquisition of Wilson Mining (WM) by Mastermyne (MM) unites the respective strengths of two of Australia’s strongest and most capable underground contractors, taking the best in class strengths of each partner to provide innovative solutions for our clients and their projects.

WILSON MINING WM has over 30 years of experience as a specialist contractor in the mining services sector. Over this period WM, has developed into a market leader of cavity fill, strata consolidation, ventilation control devices & consumable supply for the Australian mining industry.

The extensive experience that WM has gained over the last 30 years completing projects across NSW, QLD, TAS & NZ allows the business to supply much more than high quality personnel. WM’s experience allows for a consultative relationship with their customers to encourage process improvement and value creation.

PROVEN SAFETY PERFORMANCE WM are 100% committed to safety and ensuring the risk associated with our work, is as low as reasonably achievable. A central value of WM is our passion for keeping our people safe and taking every available action to look after our environment, colleagues and ourselves to ensure that we return home to our friends and family at the end of each day.

The creation of a safe working environment is therefore paramount to all undertakings and our management teams and workforce work hand in hand to actively monitor and improve safety to achieve the end result of an incident and injury free workplace.

The MM Group hold ISO 9001, ISO 14001 and ISO 45001 certification and operate under an integrated HSEQ Management System. Operating within this system, WM have a track record of injury-free projects and a strong focus on behavioural safety management.

SUPERIOR PRODUCTS Phenolic Cavity Fill

ROCSIL ® FOAM is the coal industry’s leading cavity fill product. Proven worldwide in a wide range of applications including cavity filling, vent plugs, seal repairs, firefighting and surface subsidence crack repairs. WM have continually demonstrated superior health and safety, performance, speed of installation and logistics.

Rocsil Foam has repeatedly proven it has an installed cost less than other comparable products for a typical fall recovery job. Other advantages over competitor products include negligible shrinkage, superior strength and adhesion properties.

Polyurethane (PUR) Injection

Marithan ® N used to consolidate and confine fractured material including gas and air sealing. Marithan ® S used for stabilisation of water bearing strata Polyurethane Silicate (URS) Injection Marisil E ® Silicate Based Resins used to consolidate and confine fractured material including water, gas and air sealing Phenolic Injection

Fenoflex ® is a PUR alternative product with no isocyanates, excellent adhesion strength and elastic qualities even after ground movements INNOVATION

Bulk chemical handling system providing a step change improvement in health and safety, logistics and environmental management. Surface-to-seam (remote) capability for both ROCSIL ® FOAM and Fenoflex ® Emergency sealing capability for panels or mine entries Flow Meters on all Pumps for correct and consistent mixing ratios ensuring ideal density. Emergency response systems set up for unexpected heating events. Dustless Plaster Pumping System Reduced Dust Shotcrete Stratanet Plastic Roof Mesh

COMMUNITY AND STAKEHOLDER ENGAGEMENTWe believe in doing business in an ethical, transparent, and fair way and bring this approach to every aspect of our relationship with the local community that is central to the acceptance and delivery of any major resources project.

We understand the importance that delivering large scale projects has to the long term prosperity and societal well-being of the people, communities and businesses that call the region home. PROJECT DELIVERYWM has the ability to rapidly train and mobilise resources to meet the needs of every stage of a project, through MyneSight (part of the Mastermyne Group), an Australian Registered Training Organisation (#31900), specialising in the provision of training for the surface and underground mining sectors both locally in Australia and internationally. Together with our extensive experience, planning and program execution expertise, advanced systems and processes, we have reliable equipment and products available, and a dedicated mobilisation team.

EXECUTIVE SUMMARY

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WM have 30 years experience in supporting the underground coal, hard rock & civil construction industry and are renowned in strata consolidation, water/gas control and cavity filling services

PRODUCT APPLICATIONS

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• Mastermyne completed the acquisition of WMS on 2nd September 2019

• WMS have 25 years experience in supporting the underground coal industry and are renowned in strata consolidation, water/gas control and cavity filling services

• The alliance offers provides Pybar a niche service offering to the hard rock and civil tunnelling industries

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Ground consolidation FENOFLEX® MARITHAN® N,S MARISIL® E

Cavity filling ROCSIL FOAM®

Water sealing MARITHAN® N,S MARISIL® E

Air/gas sealing ROCSIL FOAM® MARITHAN® N,S MARISIL® E

Roof bolt grouting MARISIL® THIXOMARISIL® TX

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30 years

Surface to Seam Capabilities in Coal & Hard Rock Mines

S2S


Polyurethane for consolidation

MARITHAN® N

MARITHAN® N is a two component polyurethane product intended for :• Ground consolidation in the event of ground movement.• Consolidation of fractured and unstable ground.• Sealing against water ingress.• Strata sealing.• Injection of rock bolts.

The product’s high adhesive strength and outstanding mechanical properties and good flexibility create an excellent bond with the strata, which is maintained through the life of the workplace.When injected into the strata for preventive or curative purposes, the low viscosity mixture remains liquid for several seconds and penetrates into the smallest fissures, where it expands, sets and effectively consolidate and seals the threaded zone.The product is applied by means of a pump unit and mixing gun.

Advantages

• Low viscosity product, good penetration into small fissures.• Excellent adhesion, ground cohesion quickly re-established under wet or

dry conditions.• High flexibility, coherence maintained even in the event of strata

movement.• Swells in the presence of water, suitable for stemming water ingress.• Full mechanical strength achieved very quickly, hence minimum

disruption to the workplace.


Organo-mineral resin for strata consolidation

MARISIL® E

MARISIL® E is a two-component elastic organomineral resin that comprises a silicate and a modified polyisocyanate intended for :• Strata consolidation in the T-junction area.• Coal face reinforcement.

The two-component system MARISIL® E is delivered by a pump unit and is injected in a ratio of 1:1 by volume through a mixing gun.The resulting medium sets to produce an elastic non-foaming mass of outstanding adhesive and compressive strength.When injected into the strata the medium flows into the cracks and fissures and rigidifies, thereby creating an elastic bond that is capable of retaining its integrity even after rock movement has occurred.MARISIL® E remains unaffected by water, is non-foaming and can even adhere to damp surfaces.

Advantages

• Non foaming.• Very short setting time, with the result that coal mining can be resumed

very quickly.• Achieves an elastic bond in both dry and wet work.• Does not intermix with water.


Phenolic resin for consolidation

FENOFLEX® K

FENOFLEX® K is a two component injection product intended for:• Stabilisation and consolidation of coal and soils in areas presenting fire risks.• Coal face consolidation in the mining industry.• Consolidation of working face.• Reinforcement of the T-junction zone.

FENOFLEX® K is applied using a pump unit and an injection gun. Product reaction is achieved by the mixing of the two components A and B in a volume ratio of 2 to 3.When injected into the area to be treated FENOFLEX® K penetrates the smallest cracks and fissures, starts polymerisation and ensures by bonding an effective ground consolidation.As it is classified as fire resistant, FENOFLEX® K is also suitable for sealing off underground heatings.

Advantages

• Low polymerisation temperature.• Good adhesive power, forms strong bond with strata.• Good elasticity, maintains strong bond with strata.• Antistatic polymerised product.• Fast reacting, suitable for localized injection.• Optimum mechanical strength quickly achieved, downtime is minimized.


Consolidation is helpful in binding blocky or Friable Ground Conditions, and helping establish a solid beam around the proposed mining excavation.

GENERAL CONSOLIDATION & WATER SEALING

Products Used Marisil E Silicate Based Resin Marithan E Polyurethane Based Resin

First blast, no consolidation

First blast with consolidation

Results

Sealing of water ingress into underground workings


Utilising Marisil E Pumpable Resin

Grouting around Raise Bore Foundations to assist with the ground consolidation of weak weathered ground formations/ inter burden layers. This is a quicker alternative compared to the normal instances where the weak inter burden layers are excavated and where mass concrete is used to build up from a solid bedrock level to a point where the raise bore foundation/shaft collar can be established. Additional benefits of this application are that water ingress due to the water table is sealed. Less drilling is required and works are done quickly and more effectively when compared with conventional cementation.

RAISE BORE SHAFT CURTAIN GROUTING

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Products Used

SDA’s Marisil E Thixotropic Ground Consolidation (Marithan E And Marisil E)

Spiling with Self Drilling Anchors and Marisil E Thixo Resin Used to provide cantilever type support to establish a beam where mining development runs into poor ground conditions, faults and dykes. Spiles are established by the drilling in of SDA’s along the periphery, SDA’s are drilled in and left in, this is a single pass system, this system is not affected by weak ground where holes may collapse before anchors are able to be installed.Spiles are then pumped with Marisil E Thixo.

LONG ANCHOR SUPPORT & SPILING


Phenolic foam for injection and cavity filling

ROCSIL® FOAM LS1

ROCSIL® FOAM LS1 is a two component injection product, intended for :• Air and gas sealing and the consolidation of highly fractured strata.• Filling of cavities and roof fall.• Erection of firewall at a safe distance.• Crossing rock-fall zones in tunnels and mine working.• Rapid construction of stoppings.• Injection of fractured strata and air leakage cavities to create a gas and air-tight seal.

ROCSIL® FOAM LS1 is applied using a pump unit and a mixing gun.The mixing of resin and catalyst, in a volume ratio of 4 to 1, produces an immediate foaming reaction, followed by a rapid expansion of the product to as much as 35 times its original volume. After expansion ROCSIL® FOAM LS1 sets hard in a few minutes.The special properties of ROCSIL® FOAM LS1 : rapid application (up to 45 m3/hour), high expansion rate, high compressive strength and excellent antistatic properties, produce a cost-effective, quick and safe cavity filling solution.As it is classified as fire resistant, ROCSIL® FOAM LS1 is also suitable for sealing off underground heatings and for aiding fire-fighting operations in deep mines.ROCSIL® FOAM LS1 is a LOBA (Arnsberg) approved product (62.12.22.67-4-9).

Advantages

• High expansion rate, small quantities required for cavity filling.• Instant foaming action, leak proof formwork not required.• The excellent compressive strength of the foam allows to push the shields

to the rebuild roof.• Good compressibility, adapts readily to strata movement.• No flame propagation, suitable for fire-fighting applications.


ROCSIL® FOAM HD20

11.. CCOOMMPPOONNEENNTT DDAATTAA LLSS11 HHDD2200

Density at 20°C (g/cm³) 1.2 1.2

Mixing ratio with catalyst (in volume) 4 : 1 4 : 1

Shelf life at 20°C (months) 4 4

Storage temperature (°C) 5 - 20 5 - 20

22.. RREEAACCTTIIOONN DDAATTAA 15°C 15°C

Reaction time (sec.) 1:00 - 1:30 2:30 - 3:00

Maximal temperature (°C) 96 97

Foam density (kg/m3) 40 -45 60

Expansion 27.4 20.6

Compressive stress at 10% of deformation (kPa) 69.5 97.3

Compressive stress at 30% of deformation (kPa) 70 93.8

Compressive stress at 50% of deformation (kPa) 71.5 92.3

ROCSIL® HD20 was developed specifically to achieve a mine plug seal rated to a 50 PSI overpressure loading, a 60% increase (compared to 30 PSI achieved previously), with an included factor of safety of 1.1. These high strength mine seals are typically utilised to protect against overpressure (blast) events in underground mines.

ROCSIL® HD20 is applied directly to the required seal location by injection utilising specialised Wilson Mining plant and technicians. ROCSIL® HD20 is suitable for remote surface to seam (S2S) application. The product effectively forms a plug that seals against the tunnel floor, roof & ribs over a specified length.

ROCSIL® HD20 also provides the added advantage of a controlled reaction speed; expanding the versatility of applications, by delivering increased penetration and permeation through the plug seal or consolidation location before expansion and consolidation takes place.

50 PSI Rated Plug Seal >60% Increase

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Density (kg/m3) Compressive Stress (kPa)

Rocsil Foam LS1 vs New Rocsil HD20 Formula

ROCSIL® Foam LS1 ROCSIL® Foam HD20

Controlled Reaction Speed = Increased Penetration


ROCSIL ® FOAM is a two component phenolic resin product used for cavity filling, air and gas sealing, fire fighting and stabilisation of highly fractured strata. It’s most common use is to fill cavities formed by: • Longwall roof falls • Cavity filling of voids around Set Installations.• Cavity filling of Sample Tunnel Excavations.• Cavity filling of Collapsed tunnel excavations The expansion of the Rocsil between the surrounding strata and the containment backing attached to the set installations allows for the pressurisation of the cavity filling. This pressurisation exerts a resultant force on the surrounding strata and provides an active support function.Load distribution of a foamed product like rocsil typically allows for a better load transfer under the weight of collapsing rock. Advantages

Proven cavity fill product in most Australian longwall minesExtremely fast, safe, cavity filling operation up to 50m 3/hourHigh expansion rate means smaller quantity of product and materials to be delivered to underground location at 70% less than foaming cementMinimal formwork required due to high expansion, fast setting productExcellent compressive strengthExpands in situ providing positive support to the cavityMinimal leaks due to high foaming and fast setting timeWill not block or seize the AFCThe product will not burn or propagate flameCan also be used for injection where there are large voids within the strata. Applications

Stabilisation of fractured and unstable groundSealing against water ingressStrata sealing air / gas leakageWhere spontaneous combustion is a risk Opening up collapsed ends/drives

CAVITY FILLING USING ROCSIL FOAM

ROCSIL ® FOAM hardens in approximately 5 minutes, expanding up to 35 times original volume


Foam factor and density are key technical parameters and related to the installed cost per m3 which is a better metric than cost/kg to compare the cost of cavity fill products. Installed cost per m3 = cost/kg x density kg/m3

Foam factor is the change in volume between the liquid components (resin and catalyst) and final solid foam. Density is calculated by weighing sample cubes cut from the foam. WM does QA checks every shift.

DENSITY QA –NSW Mine 17 Shifts Over 4 Months Case Study

Key Parameter Rocsil Foam (1) Other Pruducts (2) Impact

Foam Factor 30.5 (mean)

23 (‐25%) (mean)

Other products require significantly more product to fill cavity

Density 45 (mine data)

57.5 (+28%) (mean)

Other products price/kg needs to be significantly cheaper to achieve the

same installed cost per m3

To fill a typical 350m3 cavity it would take 7 hours and 600 x 20L drums of Rocsil resin and catalyst. In contrast, it would take an extra 2 hours and an additional 172 drums of competitor resin and cata-lyst. IMPACT: Competitor takes longer to fill a cavity, requires more drum handling, increased mine lo-gistics and higher installed cost. (1) – WM website and actual data NSW mine(2) – TDS_Competitor_Aus 4-Sept 2018 (3) – Pump rate 50m3/hr

FOAM FACTOR & DENSITY ROCSIL FOAM

It is fundamental that the cavity fill material stays in place whilst the longwall cuts beneath it (ie does not simply fall out)Key performance parameters are:1. compressive strength – ability to support its own weight and provide confinement to cavity2. shrinkage – minimal shrinkage is desirable to avoid de-bonding3. adhesion – how well does it stick to rock and coal4. shear strength – ability to form a cantilever without shear failure Product quality is critical. Failed installations incur high cost, delays to longwall operations and safety issue.

Actual recent trial at Narrabri Coal Operations verifying density performance.

By using WM’s Rocsil, benefit back to production 25% quicker in the event of an emergency response offering a huge value improvement.


ELECTRONIC FLOWMETERSWM pumps are set up with digital flow meters to ensure correct and consistent mixing ratio during all chemical pumping applications. This consistent approach allows WM to be able to offer quality assurance in the resultant density and uniformity of all cavity fills which are tested and recorded at the end of each shift to provide surety of value for money or ‘best bang for buck’. Correct mixing ratio is also imperative to ensure proper foam expansion is achieved, guaranteeing that the product accesses all far reaching areas of each cavity with no shrinkage.

Electronic flow meters

• accurately record the flow rates and quantity of chemical used for each step of the job

• particularly important with the quantity limitations of PUR injections to stay within the licencing requirements

• allows accurate injection quantities to meet customers specific requirements

• the primary function of the meters is for accurate and immediate real time ratio monitoring and control

• a secondary function is to record the total quantity of chemical pumped on each job, this includes capturing chemical amounts used during priming or flushing. • use of accurate metering equipment delivers significantly greater QA controls

• meters are also used to record quantities of recaptured product during the demobilisation phase

• are fully compliant for use in underground mining hazardous zones

• flow meters and registers are manufactured from robust 316 stainless steel


BULK CHEMICAL HANDLING SYSTEMBulk Chemical Handling System Traditionally the chemicals used for roof fall recovery and the stabilisation of mine strata are supplied in 20 litre drums. These drums are taken underground in bulk handler pods and operators tip these drums into hoppers that feed chemical into the pumps that are used to inject the chemical into mine voids or broken strata. Several hundred drums can be used on each application which is a major logistical and manual handling exercise. The bulk chemical handling system has been developed by WM in conjunction with the chemical supplier Weber Mining. The chemical will now be supplied in 1000 litre intermediate bulk containers (IBCs). Bulk handler pods have been designed to transport up to 3 x IBCs instead of 120 x 20 litre drums. Ancillary equipment has been sourced and tested to mix and transfer the chemical directly into hoppers. Key benefits of the system are:

• No drum handling – reduced labour requirement, less heat stress for operators• Improved ratio control – counters are used instead of drum counts• Improved logistics – 37.5% more chemical in each bulk handler• Closed system – no spills or splashes of chemical, reduced risk of chemical exposure and atmospheric

contaminants• Improved waste management – instead of empty drums that are crushed and disposed of, the IBCs are

recycled

Tri-IBC bulk handler 3 x 1000L IBCs

3300kg capacity (+37.5%) Side loaded with forklift

Standard bulk handler120 x 20L drums 2400kg capacityHand loaded

Resin Drum Pods

Resin Bulk Pods

CASE STUDY For a 350m3 cavity just 5 x bulk IBC tri-pods versus 7 x standard drum pods

IMPACT: 30% reduction in mine logistics

30% Reduction in Mine logistics


REMOTE SEALING SURFACE TO SEAM (S2S)Surface to Seam Remote Chemical Systems Wilson Mining has developed capability over the last 16 years for surface to seam chemical systems that have been successfully used by several Australian and NZ clients. Key features are:

• Chemicals and pumps are located on the surface.• Delivery hoses are lowered down a vertical borehole proximate to the underground work site.• All chemical handling and mixing is conducted on the surface reducing the number of operators underground and avoiding all underground chemical

logistics.• Injections can be conducted either remote or in-seam.• Tailored solution as a planned activity or emergency response.

A broad and ever increasing range of surface to seam chemical applications have, and are being successfully completed.


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SIMON LOVELLDRAWN BY

SIMON LOVELLDATE

27/04/2020DATE

27/04/2020DESCRIPTION

Rocsil Remote Emergency Sealing DESCRIPTION

Rocsil Remote Emergency Sealing

Surface Emergency Rocsil Manifold and Lifting frame

Underground Emergency Rocsil Remote head

Underground Emergency Rocsil Remote head

Bore hole Rocsil Hoses pack

Bore hole Rocsil Hoses pack Brackets

Non-conductive 3m lighting break Hoses

Surface Emergency Rocsil Pumping Station

REMOTE ROCSIL® EMERGENCY SEALING SYSTEM

The Wilson Mining (WM) pre-installed remote emergency sealing system provides a significant time reduction in the event of a mine fire or explosion, allowing remote plug seals to be installed in pre-determined best suited locations, along with gas monitoring systems, in fixed positions. Each of the remote heads are fed using purpose built hosing from a single 200mm cased borehole drilled down from the surface. The borehole casing is capped with a customised flanged manifold allowing the Rocsil hosing to be permanently fixed to the manifold and provides a 120 PSI rating. The borehole is located clear of the expected blast radius in the event of a mine fire or explosion.

The surface and mine infrastructure is designed for rapid mobilisation, allowing WM to connect hosing and commence the emergency sealing sequence with rapid response. Comparative to reactive emergency sealing, pre-installed systems are estimated to reduce plug installation times by 70%. If an event occurs, the system of sealing the mine is understood, allowing for best practice and effective execution in a critical stage of a mine emergency.

Estimated to reduce plug installation times by

70%Positioning to allow for drone camera technology to monitor

the remote plugs whilst pumping is underway.

Advantages of Pre-Installed Systems• Mine sealing plan designed & engineered for optimal

outcome• Pre-determined safe installation locations• Pre-installed gas monitoring on inbye side of plug

location • Drilling and casing already completed• Hosing pre-run and fixed insitu• Opportunity to upskill workforce in sealing

system

• 70% faster installation than reactive drill and remote sealing method

• Rocsil quantities known and understood• Suitable for highwall portals entry, conveyor drifts,

materials drifts and shafts• Low cost solution for guaranteed sealing. • Rocsil system provide a solid mine seal as opposed to

vent doors or bags

ROCSIL® plug seals offer an ideal controlled re-entry

solution

Up to 50 PSI rated plug seals

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EExxppeerriieenncceeCase Study

The following photos shows the performance of the Mastermyne MG46 Plug Seal under 1.0-1.8m of floor heave at Wambo in TG12 19c/t (20psi, 1m thick) & MG11 B-Heading 18-19c/t (50psi, 1.5m thick). You can see from the photos, that the formwork has cracked and peeled off (as designed) with the main body of the seal remaining completely intact. Some minor areas of leakage were found around the seals, although the site VO commented that this is to be expected with this amount of movement.

The chart indicates the Maximum Strata Load allowable, in kN/m as a function of seal thickness – for roadways up to 3.5m x 6.5m.

For further information, see attachments 45-47.

MMaasstteerrmmyynnee MMGG4466 PPlluugg SSeeaallSite Wambo mineRated 20psi, 1m thick.Head Up to 1.8m floor heaveImpact Nominal. Seal maintained integrity.

MasterRoc MG46 Plug Seal (Case Study) Site Wambo Mine Rated 20psi, 1m thick Head Up to 1.8m floor heave Impact Nominal Seal maintained integrity The following photos shows the performance of the MasterRoc MG46 Plug Seal under 1.0-1.8m of floor heave at Wambo in TG12 19c/t (20psi, 1m thick) & MG11 B-Heading 18-19c/t (50psi, 1.5m thick). You can see from the photos, that the formwork has cracked and peeled off (as designed) with the main body of the seal remaining completely intact. Some minor areas of leakage were found around the seals, although the site VO commented that this is to be expected with this amount of movement. The chart indicates the Maximum Strata Load allowable, in kN/m as a function of seal thick-ness for roadways up to 3.5m x 6.5m.

MasteRoc MG46 Open-Top Bulkhead

WM supply a range of certifications for all of their spray products and grouts. These certifications cover different roadway dimensions, overpressure ratings, heads of water and factors of safety. Specific projects have engineering certifications supplied where necessary.

MASTERROC MG46 PLUG SEALS


Micon Seals

The system was developed by Micon Group US and has been successfully tested at the former US Bureau of Mines Lake Lynn facility, at the request of the Mine Safety and Health Administration (MSHA). In these tests, the 20 psi Micon ERS was also exposed to an explosive force of 35 psi with the core of the seal sustaining little damage and remained intact. Currently in the US mining industry the Micon ERS holds a significant share of the explosion resistant seal market. The Micon ERS can be designed for a wide range of over pressure ratings including 20, 50 and even 120 psi. The system can also be used for water bulkheads due to their high quality and integrity. Today the Micon ERS is recognised as the world’s best practice for explosion resistant and bulkhead seals. The Micon ERS design consists of two surface-bonded, dry-stacked, concrete block stopping walls spaced depending on the height and rating required. Micon 550 polyurethane (PUR) and gravel fills the void between the stoppings providing a complete seal. To meet fire standard requirements, the seal is coated with a suitable surface coating. This unique seal with its uncomplicated design offers significant advantages over alternative cement based seals.

• The polymer core has expansion and cohesive properties not available in other seal materials.

• Faster curing time to become explosion rated.• Designed around flexural strength not compressive.• Explosion tested at an internationally recognised facility.• The seal is not affected by water once constructed.• Fast installation time.• Quality controlled construction.• No cold joint issues if construction is stopped during construction process.• Atmosphere sampling tubes, drain pipes and water traps may be added as

required.• More cost effective in mines with ground movement, gas and spontaneous

combustion & water accumulation issues.• Demonstrates tolerance to ground convergence without affecting integrity or

rating of seal.

Insitu Performance As deformation occurs the core absorbs / flexes and maintains a seal.The PUR core is glued to each block.Should convergence be predicted to be greater than 10%, timber convergence layers can be included in between layers of blocks in the seal to minimise crushing of the blocks. NOTE: Micon Seals at various mines have accommodated 900mm of convergence without leakage through the core.An appropriate secondary support plan should be integrated with the construction of the Micon ERS

MICON SEALS

Key Features


VCD FABRICATED SOLUTIONSFabricated VCD’S WM supply a complete range of fabricated VCD’s that can be customised to suit site requirements, examples below.

Machine doors rated and unrated, frames, 4-panel rubber flap regulated machine door

Slide 5

Machine Door 5psi Rated

Slide 7

Machine Door Frames

Personnel doors rated, unrated, unrated rubber flap

Slide 8

4-Panel Rubber Flap Regulator Machine Door

Overcast purlin & Iron, straight sided & slope sided

Slide 9

Fixed Louvered Regulator Unrated

Slide 10

Personnel Doors 5psi Rated

Slide 11

Personnel Doors Unrated

Slide 12

Personnel Doors Unrated Rubber Flap

Slide 13

Purlin & Iron Overcast

Slide 14

Straight Sided Overcast

Slide 15

Slope Sided Overcast

Slide 16

Coffin Seal

Coffin Seals


VCD PRODUCTS & ACCESSORIES

Accessories WM provide a full range of ancillary consumables for ventilation installs, each customisable for site requirements.

Pneumatic Door Systems

• FRAS Plastic Depth Gauges • Steel Depth Gauges • Stopping Poles • Mastermyne Mine Mesh • Mastermyne Brattice & Pogos

• Stopping Services Brackets • VCD Piping • Ventronic VTEX Venturi • Piccola Dry-Spray Spare Parts

Spray Products & Grouts WM supply a range of spray products and grouts for use in a wide range of ventilation applications. For shotcretes, Myne Plaster and foaming grouts, engineering certificates can be supplied for seals, stoppings and bulk heads.

Slide 30

Spray Products & Grouts Table

Product Name Group Type Expansion or Yield Strength

MasterRoc MG05 Grout High Yield 2 to 4 : 1 1 to 10MPa

MasterRoc MG46 Grout Foaming 2 to 4 : 1 1 to 15MPa

MasterRoc STS10 Shotcrete General Purpose 1:1 40-60MPa

MasterEmaco 820 Shotcrete High Performance 1:1 70MPa +

MasterRoc TSL865 TSL Spray on Liner 1:1 High Tensile

Mastermyne Mine Plaster Plaster General Purpose 1:1 20MPa

Water Resistant Mine Plaster Plaster Water Resistant 1:1 25MPa +

• Reduced weight of tubes lowers risk of back injury• Unique layup of tube significantly decreases likelihood of splintering reducing risk of injury

from sharp shards• Ribbed tubes increase strength and stiffness whilst ensuring lightness• Simtars tested to comply with the requirements of IEC 60079 0 clause 7.3.2 for a surface

resistance not exceeding 1 GΩ and of clause 19.3.2.1 of IEC 60079 1• Excellent durability thereby reducing risk of damage in transport and handling, enabling tube

to be removed and reused• Able to be repaired so as to extend the life of the tube

Ventilation Tubes, FRAS Ventilation Tubes & Fittings


WM & MM’s extensive operational experience provides greater insight into the little things that make the biggest difference. We apply new technologies from Australian and overseas suppliers to deliver a product portfolio that improves mine safety and operational performance, that includes: Bagged cable grouts, void filling grouts, TSL’s & shotcretesStratanet plastic & steel meshVentilation supplies Fabricated items Conveyor consumables Development consumables Stone dusting suppliesCable rollers, hanging brackets & chainsSecondary support suppliesDewatering devicesShouldered pipe and manifolds

MINING CONSUMABLES & PRODUCTS

Wilson Mining work with our clients from concept through to development and production.

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Stratanet is a FRAS polypropylene mesh alternative to steel mesh. A lightweight, corrosion free and multi-directional high strength alternative to steel for roof & wall cladding applications in underground mines. The innovative honeycomb like design helps to distribute the load of any loose debris, and has undergone several iterations to provide the highest flexural and tensile properties in the areas furthest from the supporting rock bolts. The lightweight polypropylene being only 2.3-2.4kg/m2 provides occupational health and safety benefits associated with manual handling and installation. Benefits

• Improved visibility • Reduced weight • Stacks easily and effectively • Corrosion resistant • Module sizes can be tailored to meet mine requirements • Non-conductive -ideal for use around the base of boreholes or shafts • Replacement for standard mesh modules in development roadways • Available up to 1.6m wide, to required length • Excellent adherence with stone dust

STRATANET ® PLASTIC ROOF & RIB MESHFlame Retardant and Anti-Static (FRAS) MDG3608 6.3.1 & MDG3608 C9.2 One Kilowatt Burner Flame Test Spirit Lamp Test

Avoid costly repeated reinstallation of corroded steel mesh

Despite the Stratanet product being non-steel, it can nonetheless be considered as a “rigid” structure that can support its own weight without bending excessively when being manually handled. This should allow it to be manoeuvered into position in and around a CM in exactly the same manner as the steel wire mesh modules in current use. The flexural stiffness (i.e. early resistive force development) of both a 5.3 mm steel wire mesh module and the Stratanet product are almost identical. Chartered Professional Engineer (Geotechnical [Mining]) – Aus.I.M.M. and RPEQ


Dustless Plaster Pumping System Step Change in Ventilation Innovation Chemicals and pumps are located on the surface.The Dustless Spray System has been designed to provide a step change to the way ventilation devices are sprayed underground, key drivers behind the innovation were to improve safety of operation while providing increased productivity results. The system is currently completing field trials of the first generation prototype, Second generation is currently being developed in concept phase with findings from field testing to improve performance. The Dustless Spray System can only be utilised with Mastermyne Myne Plaster.

• Pump loaded on the surface where dust control can be managed using bulk bags to load (Potential to introduce tanker storage to transfer product to Dustless Pump System)

• Elimination of all dust from the pump during operation

• Considerable reduction of dust from the nozzle during spraying

• Elimination of any manual handling of 20kg bags or hazards associated with utilising bulk bags over a Piccola pump

• Greater QA of water to plaster ratio

• Improved delivery rate allowing for productivity gains during spraying of VCD’s

The Benefits are Clear

Before After

Generation Two Concept

4

GGeenneerraattiioonn TTwwoo CCoonncceepptt Provides a step change to the way ventilation devices are sprayed

underground.........

DUSTLESS PLASTER PUMPING SYSTEM


CONTINUOUS IMPROVEMENT

Reduced Dust Shotcrete Wilson Mining are currently undertaking trails for a reduced dust shotcrete and are preparing to commence underground field testing. When this product is launched to the market Mastermyne will provide further details.

Micon HB Seals The Micon HB (high bond) Seal is a new VCD product development. The design consists of PUR glued masonry blocks and a thinner PUR/gravel core thickness compared to the standard Micon ERS. This reduces materials requirements and cost whilst retaining the important features of convergence and water resistance. The initial Micon HB seals were built using crews formed from both NSW and Qld WM operators and staff to meet the Kestrel mine’s planned longwall start-up schedule. Modifications to the HB seal design can be undertaken to provide a bulkhead rating. Visyload Washers Confirms tensioning equipment works correctly at start of shift.

Pull-test can be completed without bulky equipment.

HS

EQ



HSEQ ACCREDITATION & TRIFRSafety is paramount to the activities of Mastermyne success, from top to bottom, the safety of all employees and stakeholders is our principle goal and we have an exceptional safety pedigree across all our operating markets and regions; of which we are rightly proud of. Safety isn’t a word, a brand or a sign; it’s a way of thinking.Mastermyne commit to providing a safe work environment at all work sites for all employees every single day, and to ensure that safe work practices, safety training and supervision are in place to eliminate the potential of incident or injury. We continually seek to identify and mitigate any potential safety hazards on our projects and we won’t compromise on safety.Mastermyne operates all facilities and projects under a certified safety management system. The system provides a robust structure for managing timely and efficient delivery of projects while exceeding Health and Safety regulation requirements and striving for high performance targets.The foundation for safety leadership is through all employees as advocates to Keep Safe through presence, knowledge, and commitment to our vision.

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• Leadership is about our leaders not just talking the talk, but walking the walk.

• Communicating performance expectations

• Being available in the workplace

• HSEQ Interactions, recognising good performance and focusing on actions

• Pre-starts, toolbox talks, risk reviews and incident investigations

• Actively mentoring direct reports.

• Focus on hazard identification and management and on developing our supervisors by training them in safety management and culture.

Mastermyne Group TRIFR & LTIFR

Callouts - Catching people doing the right thing• Safety compliance must be achieved, but it can only get you so far • By recognising and rewarding the right behaviour we build the right culture

• Leadership is about our leaders not just talking the talk, but walking the walk.• Communicating performance expectations • Being available in the workplace • HSEQ Interactions, recognising good performance and focusing on actions• Pre-starts, toolbox talks, risk reviews and incident investigations• Actively mentoring direct reports. • Focus on hazard identification and management and on developing our supervisors by training

them in safety management and culture.

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Owned by the Mastermyne Group of companies, MyneSight is a Registered Training Organisation (#31900) providing training, assessment and consultancy services to the resource sector, specialising in the coal mining industry, both Open Cut and Underground in Queensland and New South Wales. MyneSight delivers a complete range of services necessary to set-up and operationalise a site’s Training Management System, which are inclusive of the areas shown within the diagram below.

MyneSight will facilitate mobilisation of the workforce at Narrabri and develop the site’s on-boarding system to address the underpinning induction skills identified within the site Training Needs Analysis (TNA).

Once the mobilisation is complete MyneSight continue to monitor the training needs analysis to ensure competencies and compliances remain up to date. They arrange training for employees and maintain their INX records to ensure records are up to date and available in real time.

MYNESIGHT CLEANSKIN PROGRAM

MyneSight provide and facilitate a suite of inexperienced mineworker courses, offering the initial training platform to ensure that all personnel are trained within a safe simulated environment. This training has been utilised by mining houses and contracting companies and ensures a clear, consistent pathway into the mining industry. When compared to traditional training methods, we have found that integrating the hands-on training in the underground environment has proven more effective and to have less impact on the day-to-day site operations.

• Both NSW and QLD Training facilities fitted out with over 90 meters of simulated underground roadways

• 4 week initial training platform to ensure that all personnel are trained within a controlled setting + 1 extra week of development specific

• Hand select the best candidates for culture and attitude

• Accelerated inexperienced personnel to enter a productive mode

• Larger percentage of the training conducted off site

• Aligned to the trainee’s needs, learning styles and experience level

• Providing the trainees with a more in-depth level of understanding

• The trainees have a clear understanding of mining hazards, risks and associated controls

• Once through the programme the cleanskins stay with us and go on to be supervisors

• Trade introduction to underground programme

• Only RTO as a preferred supplier of User Choice to deliver Certificate II in Underground Coal Mining in QLD

118 Cleanskins employed in FY19

Training Management

System

Training Scheme

Training Needs

AnalysisAudit

OnboardingRecord

Keeping

Training Delivery

MyneSight is a dedicated resource that ensures all competencies, tickets and compliances are up to date. ‘Renewals are planned in advance to fit optimally with Anglo’s operation to improve efficiency and productivity.’

60 QLD

58 NSW

TRAINING

SUMMARYSUMMARY

Innovations bulk handling

surface to seam

Extensive strata control

experience market leader

Enterprise Agreements through to

2022

Long term relationship

with DNRME & other major

industry stakeholders

Mature HSEQ systems, with outcomes that represent our commitment

and values

Extensive VCD experience

market leader



If there’s one thing Mastermyne is known for it’s our high safety culture. We look out for each other.

Our workforce share in a strong performance culture that delivers greater results.

Our culture is built on a rule of respect and no bull. We do what’s right and do what we say we will do.

Level 1 Riverside Plaza 45 River Street Mackay QLD 4740 Email [email protected] Phone (07) 4963 0400

It’s mateship that binds us tight through the hard times and makes the most of the good times.

We’re focused on thinking beyond traditional limits, collaborating with each other and our business partners to transform our industry.

16 Metro Court Gateshead NSW 2290 Email [email protected] Phone (02) 4904 8222

Documents

Business Overview Strata, Ventilation & Consumable Solutions