1 2020-08-24 Group structure of NAMWOLL 2 INCUBEX MINERALS LTD - - PowerPoint PPT Presentation

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Group structure of NAMWOLL

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INCUBEX MINERALS LTD

Namaqua Wollastonite (Pty) Ltd NamWoll Manufacturi ng (Pty) Ltd Mining Right Rainbow Properties 108 (Pty)Ltd

100% 100% 100%

Processing Plant House

The Namwoll Team

The Team

• Johan de Bruin – CEO;
• Riana Mulder – Personal Assistant to MD

and sales and marketing manager.;

• Erin Markgraaff – Accountant;

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About Namwoll

• Incubex Minerals Ltd (“Incubex”) is the investment and holding company of Namaqua Wollastonite (Pty) Ltd and Siyaghopa Trading 147 (Pty)
• Ltd. Siyaghopa Trading 147 (Pty) Ltd is the operating company and Namaqua Wollastonite (Pty)Ltd is the holder of the mining right.
• The operation, referred herein as “Namwoll”, has been in operation since 2013. Incubex bought The three companies now referred to as

Namwoll during 2013 and has since re-established the Processing Operation (Siyaghopa Trading 147 (PTY) Ltd) and the Magata Mine (Namaqua Wollastonite (PTY) Ltd).

• Namwoll is a small operation with a large deposit and future prospects higher production for export, it is further the only operating wollastonite

mine in South Africa.

• Namaqua Wollastonite (Pty) Ltd holds the mining right as well as a prospecting right situated next to the mining right area.
• The mine is situated 18km out of Garies, Northern Cape, with the fine product processing plant in Garies.
• It is a open pit mine and uses a dry separation process.
• Life of mine at current production is over 1000years. Magat Mine has 1 million tonnes drilled reserves with an estimated total reserves of 3

million tonnes.

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Mining Right

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2547 Wilgenhoutfontein No.426 - a portion of the remainder 138.2 SNC30/5/1/2/2/537MR 23-Jun-10 22-Jun-40 Wollastonite Namaqua Wollastonite (Pty) Ltd REF # FARM PORTION SIZE (ha) MINING RIGHT COMMENCE- MENT DATE EXPIRY DATE MINERALS HELD BY

Objectives

Short Term Objectives:  Make production more efficient and cut down on costs;  Marketing drive to increase the current Sales to 150 tonnes a month;  Finalise Feasibility Study on expansion. Long Term Objectives:  Expand plant to produce at least 1000 tonnes a month which will lower our unit cost;  Take over the entire South African Market;  Export product to Europe.

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Mine Pit Crushing and Screening Plant Truck Loading Bin Wollastonite Processing Plant

The Mining process

• Wollastonite is named after the English chemist and mineralogist William Hyde Wollaston (1766–1828) and is a calcium inosilicate mineral

(CaSiOɜ) that may contain small amounts of iron, magnesium, and manganese substituting for calcium.

• It is usually white but also found in a pearly grey colour.
• It forms when impure limestone or dolostone is subjected to high temperature and pressure sometimes in the presence of silica-bearing

fluids as in skarns or contact metamorphic rocks. Associated minerals include garnets, vesuvianite, diopside, tremolite, epidote, plagioclase feldspar, pyroxene and calcite. Some of the properties that make wollastonite so useful are its high brightness and whiteness, low moisture and oil absorption, low volatility and enhancement of flexural and compaction strengh.

• Wollastonite is used primarily in ceramics, friction products (brakes and clutches), metal making, paint filler and plastics.
• Despite its chemical similarity to the compositional spectrum of the pyroxene group of minerals where magnesium and iron substitution

for calcium ends with diopside and hedenbergite respectively it is structurally very different, with a third SiO4 tetrahedron in the linked chain (as opposed to two in the pyroxenes).

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What is Wollastonite

How does wollastonite look

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Wollastonite in nature. Fine Crystals.

Wollastonite in nature. Cluster of crystals with carnet and dioptase inclusions. Wollastonite cluster. Wollastonite cluster. Wollastonite needles under a microscope. Wollastonite end product.

Wollastonite Specifications

1. GENERAL

• Category - Silicate Mineral
• Formula - Calcium Silicate, CaSiO3
• Strunz Classification – 09.DG.05
• Crystal System - Triclinic, monoclinic polytype exists
• Unit Cell - a = 7.925 Å, b = 7.32 Å, c = 7.065 Å; α = 90.055°, β = 95.217°, γ = 103.42°; Z = 6

2. IDENTIFICATION

• Colour – White, colourless or grey
• Crystal habit – Rare as tabular crystals commonly massive in lamellar, radiating, compact and fibrous aggregates
• Crystal Symmetry - Triclinic – pinacoidal H-M symbol: 1 Space group: P1 (1A polytype)
• Twinning – Common
• Cleavage – Perfect in two directions at near 90˚
• Fracture – Splintery to uneven
• Luster – Vitreous or dull to pearly on cleavage surfaces
• Solubility – Soluble in HCI, insoluble in water

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Wollastonite Uses

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• Wollastonite has industrial importance worldwide. It is used in many industries, mostly by tile factories which have incorporated it into the manufacturing of ceramic to improve many aspects, and

this is due to its fluxing properties, freedom from volatile constituents, whiteness, and acicular particle shape. In some industries, it is used in different percentages of impurities, such as its use as a fabricator of mineral wool insulation or as an ornamental building material.

• In ceramics, wollastonite decreases shrinkage and gas evolution during firing, increases green and fired strength, maintains brightness during firing, permits fast firing, and reduces crazing,

cracking and glaze defects.

• In metallurgical applications, wollastonite serves as a flux for welding, a source for calcium oxide, a slag conditioner, and to protect the surface of molten metal during the continuous casting of

steel.

• As an additive in paint, it improves the durability of the paint film, acts as a pH buffer, improves its resistance to weathering, reduces gloss, reduces pigment consumption and acts as a flatting

and suspending agent.

• In plastics, wollastonite improves tensile and flexural strength, reduces resin consumption, and improves thermal and dimensional stability at elevated temperatures.
• Surface treatments are used to improve the adhesion between the wollastonite and the polymers to which it is added.
• As a substitute for asbestos in floor tiles, friction products, insulating board and panels, paint, plastics, and roofing products, wollastonite is resistant to chemical attack, inert, stable at high

temperatures and improves flexural and tensile strength.

• Plastics and rubber applications were estimated to account for 25% to 35% of U.S. sales in 2009, followed by ceramics with 20% to 25%; paint, 10% to 15%; metallurgical applications, 10% to

15%; friction products, 10% to 15%; and miscellaneous, 10% to 15%. Ceramic applications probably account for 30% to 40% of wollastonite sales worldwide, followed by polymers (plastics and rubber) with 30% to 35% of sales, and paint with 10% to 15% of sales. The remaining sales were for construction, friction products, and metallurgical applications.

Wollastonite Application and Function

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Application Field Specific Application Wollastonite Function

Ceramic Industry Various ceramics, glass and moulds

• Reduce the burnt temperature;
• Shorten the burnt period;
• Reduce the firing shrinkage. Improve deflection and cracking;
• Optimisation of porcelain glaze glossiness and sleek flatness;
• Improve the mechanical strength abrasion and scratch resistance.

Metallurgical Industry Protection slag for heat insulation material and cast steel

• Ensuring composition stabilized and uniformity of slag;
• Better adapted to steel types;
• Reducing the possibility of steel surface embrittlement and longitudinal cracking;
• Strong absorbsion and dissolving capacity of impurity;
• The viscosity varies little along with temperature in the process of continues casting;
• Lubrication and protection without effecting the crystallisation and cooling of casting billet;
• Reduces fluoride pollution and equipment corrosion.

Building Materials Industry Calcium silicon plate, cement fibrolite plate, fire insulation board

• Being innocuous, flavourless and non-radioactive it reduces pollution and production costs;
• Increases shock resistance, flexural strength and abrasive resistance;
• Good corrosion resistance, sound and heat insulation and fireproofing.

Rubber and Plastics Industry Styrene butadiene rubber

• Increases wear and scratch resistance;
• Increases shock strength and enables products to enjoy high electrical and thermal insulation;
• Increases thermal and dimensional stability;
• Increases surface finish quality;
• Good reinforcing function;
• Increases the tensile strength, tearing strength, elongation at break, wear resistance;
• Improves moistening and dispersion.

Coating and Paint Industry Anticorrosive paint, thermal insulation coating, construction paint

• Wear, corrosion and ultra violet resistance;
• Make paint show higher surface gloss and better water proof corrosion and buffers ph-value;
• Improve thermal stability;
• Reduce consumption of cementing substance.

1.

• 100 MICRON

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CHEMICAL ANALYSIS % Calcium CaO 46.5 – 47.5 Magnesium MgO 0.16 – 0.3 Silica SiO2 48 – 49.5 Sodium Na2O Trace Potassium K2O3 0.08 – 0.88 Phosphorus P2O5 0.01 – 0.05 Titanium TiO2 0.03 – 0.04 Iron Fe2O3 0.5 – 0.55 Aluminium Al2O3 0.8 – 0.9 L.O.I 2.6 – 2.7 PHYSICAL PROPERTIES % pH 9.8 - 10 Moisture (110 dec C at 24 hrs) 0.5 PHYSICAL PROPERTIES % Oil Absorption 23-25g/100g Refractive Index 1.63 Hardness moh 4.5 – 5.0 Whiteness SABS 137 Dry 80 – 85 Specific gravity 2.8 – 2.9 Melting Point 1540c Appearance White Shape Acicular PARTICULAR SIZE DISTRIBUTION MICRON Retained on cumulative 250 micron 0.00 150 micron 0.09% 75 micron 10 – 12% 45 micron 22 – 25%

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• 150 Micron

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CHEMICAL ANALYSIS % Calcium CaO 46.5 – 47.5 Magnesium MgO 0.16 – 0.3 Silica SiO2 48 – 49.5 Sodium Na2O Trace Potassium K2O3 0.08 – 0.88 Phosphorus P2O5 0.01 – 0.05 Titanium TiO2 0.03 – 0.04 Iron Fe2O3 0.5 – 0.55 Aluminium Al2O3 0.8 – 0.9 L.O.I 2.6 – 2.7 PHYSICAL PROPERTIES % pH 9.8 - 10 Moisture (110 dec C at 24 hrs) 0.5 Oil Absorption 14-15g/100g PHYSICAL PROPERTIES % Refractive Index 1.63 Hardness moh 4.5 – 5.0 Whiteness SABS 137 Dry 80 – 85 Specific gravity 2.8 – 2.9 Melting Point 1540c Appearance White Shape Acicular PARTICULAR SIZE DISTRIBUTION MICRON Retained on cumulative 250 micron 0.05% 150 micron 6-8% 100 micron 15-17% 75 micron 39-44% 45 micron 72-74%

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• 1200 Micron (<1.2mm)

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CHEMICAL ANALYSIS % Calcium CaO 44 - 45.5 Magnesium MgO 0.2 – 0.4 Silica SiO2 49 - 51 Sodium Na2O Trace Potassium K2O3 0.11 – 0.13 Phosphorus P2O5 0.01 – 0.05 Titanium TiO2 0.03 – 0.04 Iron Fe2O3 0.4 – 0.5 Aluminium Al2O3 1.18 – 1.2 L.O.I 3.5 – 3.7 PHYSICAL PROPERTIES % pH 9.8 - 10 Moisture (110 dec C at 24 hrs) 0.5 Refractive Index 1.63 PHYSICAL PROPERTIES % Hardness moh 3.5 – 4.00 Whiteness SABS 137 Dry 80 – 85 Specific gravity 2.8 – 2.9 Melting Point 1540c Appearance Wollastonite/Garnet/Calcite Shape Acicular/round mixed PARTICULAR SIZE DISTRIBUTION MICRON 2000 micron Trace 1600 micron 4.4% 1000 micron 30.90% 710 micron 44.60% 500 micron 60.10% 425 micron 66.60% 250 micron 83.80% 150 micron 92.60%

Wollastonite vs Artificial Fibres

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Type of Fibre Diameter [pm] Specific Gravity [g/cm²] Tensile Strength [Mpa] Elastic Modulus [Gpa] Ultimate Elongation [%]

Metallic Steel Glass E Glass AR Glass 5 – 1000

• 8 – 15

8 - 20 7.85

• 2 – 54

2.70 200 – 2600

• 2000 – 4000

1500 - 3700 195 – 210

• 72

80 0.5 – 5

• 3.0 – 4.8

2.5 – 3.6 Synthetic Acrylic (Pan) Aramid (e.g Kevlar) Carbon (low modulus) Carbon (hight modulus) Nylon (polyamide) Polyester (e.g. PET) Polyethylene (PE) Polyethylene (HHPE) Polypropylene (PP) Polyvinyl acetate (PVA) 5 – 7 10 – 12 7 – 18 7 – 18 20 – 25 10 – 8 25 – 1000

• 10 – 200

3 - 8 1.18 1.4 – 1.5 1.6 – 1.7 1.7 – 1.9 1.16 1.34 – 1.39 0.96 0.97 0.90 – 0.91 1.2 – 2.5 200 -1000 2000 – 3500 800 – 1100 1500 – 4000 965 280 – 1200 80 – 600 1000 – 4000 310 – 760 800 - 3600 14.6 – 19.6 62 – 130 38 – 43 200 – 800 5.17 10 – 18 5.0 80 – 150 3.5 – 4.9 20 - 80 7.5 – 50 20 – 4.6 2.1 -2.5 1.3 – 1.8 20 10 – 50 12 – 100 29 – 4.1 6 – 15 4 - 12 Natural – Organic Cellulose (wood) Coconut Bamboo Jute 15 – 125 100 – 400 50 – 400 100 - 200 1.50 1.12 – 1.15 1.50 1.02 – 1.04 300 – 2000 120 – 200 200 – 440 250 – 350 10 – 50 19 – 25 33 – 40 25 – 32 20 10 – 25

• 1.5 – 1.9

Natural – Inorganic Asbestos Wollastonite 0.02 – 25 25 – 40 2.55 2.87 – 3.09 200 – 1800 2700 4100 164 303 - 530 2 – 3

• Physical properties of selected fibres:

Market Study – Local

 In South Africa, where the mineral is mostly imported from China, it is mostly used to make brake pads and to strengthen cement.  Namwoll is the sole producer of wollastonite in South Africa and has a market share

• f

more than 50%

• f

the 200t/month South African market.  This 200 tonne market is estimated.  This presents an opportunity for Namwoll to take-over the entire South African market.

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Market Study - Global

 The overall global production of wollastonite has been around 1.4 million tonnes in recent years  Global production of the mineral had increased from 1,098.3 tonnes in 2013 to 1,421.5 tonnes in 2017, representing a CAGR of 6.7%  China had been the largest producer of the mineral in 2017, accounting for 77.4% of the global production, followed by India (10.8%), Mexico (6.2%) and United

States (3.5%)

 Smaller producers such as Chile, Kenya, Namibia, South Africa, Sudan, Tajikistan, Turkey, and Uzbekistan had a combined total production of about 6,000.0 tonnes in

2017.

 World reserves of wollastonite exceeded 100.0 million tonnes in 2018, however many deposits have not been surveyed, precluding accurate reserves estimates  Large deposits of wollastonite were found in China, Finland, India, Mexico and the United States while smaller yet significant deposits were found in Canada, Chile,

Kenya, Namibia, South Africa, Spain, Sudan, Tajikistan, Turkey and Uzbekistan

 Since wollastonite is not widely covered by official or government publications, overall consumption information is not available on a country-by-country basis  However, information regarding export data from U.S and Indian publications on the mineral can help determine markets which have a demand for the mineral  Companies from the United States exported wollastonite to countries such as Argentina, Belgium, Brazil, China, Colombia, the Dominican Republic, Germany, Hong

Kong, India, Italy, the Netherlands, Portugal, and the United Kingdom

 In 2017-18, India exported to countries such as Belgium, Japan, Germany, France and UK, wherein Belgium and Japan accounted for the majority, 54.0% and 23.0%

respectively, of the overall exports.

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Challenges:  New equipment needed;  DMR requirements;  Lack of a proper marketing study;  Conclude formal resource statement;  Expand plant to produce export volumes.

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Solutions:  Training programmes – in process;  Marketing drive to increase sales.  Work with the DMR to overcome issues – in process;  Fund raise initiatives for short term and long term objectives.

The Way Forward

Contact details

 Riana Mulder at the Factory – 027 652 1703  Johan de Bruin (CEO of Namwoll) – +27 83 515 4114, johandebruin@incubex.co.za  Clive Winterton (CEO of Incubex, holding company of Namwoll) – +27 83 383 0025 clive@incubex.co.za  Registered address – Suite 206, 2nd Floor, Northwing Granger Bay Court, Beach Road, V&A Waterfront, Cape Town.  Factory and Warehouse – Stand 480, Garies Industrial Area,

• Garies. Po Box 204, Garies, 8220.

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