PWA Company Registration Number : 876209 P
B2703 Kiaramas Sutera 7 Jalan Desa Kiara
Mont Kiara 50480 Kuala Lumpur
Malaysia
: + 60 3 263 03415 Mob : + 60 19 347 7468
E-Mail :[email protected] www.pwaltd.net
Skype : pwa-peter
BUSINESS PROFILE / CAPABILITY STATEMENT
2012
Metallurgical Process and Laboratory
Consultant, Process Development & Design
& Project Management. Project
Development the Mining & Minerals
Industry.
PWA
PWA Limited was originally founded in late 1999 with the objective to provide consulting services, project
management, process design and development as either an independent or in association with other contracting /
consulting companies, internationally. PWA via is wide range of associates, also has the capability to additionally
provide Mining Project Evaluation, Engineering Design, Fabrication, Supply, Construction and Commissioning
Services for the Mining and Minerals Industry.
Areas of Expertise & Service include :
Management
Management of mining, processing & laboratory operations & projects
Project Evaluation
Evaluation of mineral deposits, preliminary metallurgical assessment (“red flagging exercise”).
Financial
Project evaluation, audits & assistance in the preparation of competent persons reports to financial institutions
& stock exchange.
Process Design
Process development & design for precious metal, industrial mineral & base metal projects.
Research & Development
Research & development of process innovations
Consulting Services
Process consulting services to mining groups, consultants & financial institutions.
Laboratory
Laboratory design, management, audit & QC. Development & management of metallurgical test work programmes.
Engineering Design, Fabrication and Supply
Provision of Engineering & Design Services as well as Fabrication and Supply of Structural Steel, Platework and
Equipment Manufactured under Licence to the Highest Quality Standards.
Construction and Commissioning Services
Project Construction and Commissioning Services of Small, Medium and Large Scale Projects.
The success of PWA in past endeavours coupled with a reputation in the minerals industry will ensure the
success of PWA in achieving the overall objectives, and indicates commitment to this strategy. The diverse
experience of PWA ensures that a holistic approach is maintained whilst maintaining sight of the client’s needs,
requirements and philosophies.
PWA
Why PWA?
We have Extensive experience in the extractive metallurgy of gold, base metals and minerals as well as many of
the refining techniques applied. Our experience extends into laboratory development, research and management
as well as evaluation of deposits and projects and has been extended to incorporate Mine Project Evaluation and
Development.
We offer our clients the following :
Proven track record in project management
Appropriately engineered technical solutions
Cost effective, competitive service
Project development either as contractor or through partnerships
In-house process, project development experience and expertise.
Diversity of experience and expertise for effective identification, evaluation, development and
management of metallurgical, laboratory and process related projects worldwide.
Associations and strategic relationships to contribute to all facets of mining project development
and execution.
Reputation
Key success factors to achieve this goal are:
develop and make use of strategic alliances, associations and partnerships
identification of real needs and requirements in the mining industry
identification of cost effective, appropriate and efficient process routes and processes
provide a balance of innovative and conservative process solutions
to operate as part of and supplement the client’s team and act in the client’s best interest
honesty and
integrity
focus on
professional
customer service
maintain a balanced
portfolio of
business
operate world-wide
on a selective basis
PWA
Management
Peter Wallwin has had extensive experience in the management of both business units as well as overall
management of projects.
General management experience includes;
General Manager - Bonanza Gold Mines (The Messina Transvaal Development Company Limited) – appointed
general manager of a 50 000 tpm underground and surface reclamation gold operation.
General Manager (Time Mining (Pty) Limited) – General Manager of Performance Laboratories (Ghana) Limited
and West African Operations. Performance Laboratories provides a comprehensive range of analytical and
metallurgical services to international standards in West Africa
General Manager Rustenburg Ferrochrome Reclamation Facility (Reclatek (Pty) Limited) – General Manager of a
50 000 tpm ferrochrome alloy from dump reclamation project.
Directorships - Time Mining (Pty) Limited, Dump & Dune Drillers (Pty) Limited, Performance Laboratories (Pty)
Limited, Performance Laboratories (Ghana) Limited to 2000.
Project Manager – West Wits 100 000 tpm heap leach and 120 000 tpm CIP conversion project (included
process design and commissioning).
Project Manager – sand and slime reclamation projects for Knights Gold Mining (Pty) Limited. Projects ranged
from 1.4 Mtpa sands pumping project pumping over 10 km for Rose Deep to 3.6Mtpa slimes reclamation project
for Rietfontein. (included evaluation, feasibility study, process design & commissioning).
Process Consultant & Development Manager – 5.5 Mtpa BIOX and semi-refractory gold project in West Africa.
Project Manager – 40 000 tpm copper heap leach
project for ZCCM Nchanga (included process design &
commissioning as well as pre-feasibility for expanded
project to treat 100 000 000 tons of low grade
overburden).
Project Manager – Zadra elution system for
Consolidated Murchison (included project risk
assessment Zadra vs ARL elution system, process design
& commissioning).
Project Manager – Feasibility study to upgrade of
750 000 tpm heap leach project in West Africa
Commissioning Manager – 100 000 tpm gold project in East Africa
Facilitation & Management – Yatela risk assessment
(Anglogold – Mali)
PWA
Project Evaluation
Project evaluation exercises have been performed for financial institutions, mining and exploration companies.
Evaluation of plant clean up & salvage potential – AGC Obuasi Ghana
Evaluation of Mampon gold deposit – preliminary red flagging exercise to feasibility for Birim Goldfields
Inc (Ghana).
Competent persons report in association with The Mineral Corporation for Johannesburg Stock Exchange
– Purchase of Barnex Prestea assets by Bogoso Gold Limited (Ghana).
Evaluation and feasibility study – treatment of oxide copper cap and selenium recovery from slag at
Messina Copper (South Africa).
Evaluation of numerous sand & slimes
tailings deposits for Knights Gold Recovery
South Africa
( in excess of 100 000 000 tons).
Evaluation of Copper / Cobalt extraction &
refining project & process - DRC
Evaluation of Copper / Cobalt project
including tailings reclamation - Uganda
Evaluation and audit of
diamond recovery
operation - DRC
Evaluation and audit of
nickel refinery anodes
Rustenburg Base Metals
Refinery – South Africa
Evaluation and
performance audit of
Ticor smelter – Richards
Bay, South Africa
Evaluation and
development of Tanchon
25 Mt gold / copper
tailings project – Asia
PWA
Financial
Competent persons report, feasibility studies and project evaluations have been performed for or on behalf of
financial institutions and stock exchanges.
Evaluation of AGC feasibility study for Mampon gold project Ghana – Birim Goldfields Inc. (shareholders
& Toronto stock exchange).
Evaluation of sulphide treatment process design and test work – Bogoso Gold Limited (Mineral
Corporation & Investec Bank).
Evaluation of re-opening old gold workings and associated infrastructure – Botswana for Investec Bank
Performance testing & audit for Ticor titanium smelter Richards Bay South Africa – SNC Lavalin & Rand
Merchant Bank.
Member of clients team for European Nickel – BFS : Acoje Nickel Cobalt
Numerous due diligence exercises performed on behalf of banks, financial institutions or
clients.
PWA
Process Design Peter Wallwin has been involved in or managed innumerable feasibility study programs which have involved
extensive process development and has developed and designed numerous process plants, some of which are;
Upgrade of leach, solvent extraction and precipitation plant for West Driefontein Uranium Plant.
Bar 20 refractory gold project – process design, development and commissioning of treatment plant to
treat highly arsenical sulphide ore.
Sanyati Project – test work, pilot plant & process design for 100 000 tpm copper, lead & zinc project.
Anthra & Nkomati Collieries – process design to uprate and develop low ash treatment plant for
anthracite.
Messina Platinum – process design, pilot plant testwork and feasibility study for development of 240 000
tpm (4 X 60 000 tpm modules) Copper, nickel & PGM concentrator and smelter. Innovations included
investigation and risk assessment of plasma arc smelting.
Messina Diamonds – uprating of existing pan plant incorporating DMS, for recovery of < 6 mm diamonds
and superior yield of large stones.
Messina Copper Limited – recovery of semi oxidised copper from converter slag by treatment in
flotation section.
Empress Nickel – Investigation into the use of Plasma Arc smelting techniques with subsequent
treatment of matte by Davy powder technology process.
Process development and design for the recovery of residual nickel, copper & PGM values from slag
(Rustenburg area).
Process design for 100 000 tpm gold heap leach operation in Magadan area (CIS).
Process development and design for First Wesgold ferroalloy reclamation project.
Process design for soda ash nickel sulphide neutralisation plant for Rustenburg Base Metals Refinery
(RBMR).
Process design and development for recovery and treatment of transitional ores – Bogoso Gold (Ghana)
Process design and commissioning services for Meremeta Tembo and Buhemba Gold Projects (Tanzania)
Process Design and commissioning services for ERPM, CIP Conversion Project.
Process Design for Kloof 3 Pumpcell CIP conversion and Kloof 2 Elution plant expansion – Goldfields
South Africa
Process design and development of back end treatment plant for Suzdal BIOX project - Kazakhstan
Process design of 15 Mtpa Siguiri CIP project – (Guinea, West Africa).
Process design for Raub Australian Gold Mines CIL expansion project - Malaysia
PWA
Process development & design of 5.5 Mtpa BIOX & semi-refractory treatment plant for Bogoso Gold
Limited (Ghana).
Process development & design of Kokpatas BIOX / RIL – NMMC, Uzbekistan.
Process development and design in co-operation with European Nickel for an innovative new Nickel Cobalt
extraction technology.
Process design for copper pelletisation system and reaction furnace - Asia
Process development & design for HiTeCC preg-robbing reversal system in co-operation with Goldfields
Biomin.
PWA
Control & Instrumentation & IT
Development and application of “CORES” geological and mining resource modelling software for Messina
Limited.
Development and implementation of ore reserve database for Messina Limited copper mines.
Development of an empirical pumping model used for the design of long overland pumping systems. This
model has been successfully used in the design of well over 100 large pumping projects.
Development of PC / PLC version of “Digicon” ROM mill control software.
Development and implementation of new 1 000 000 tpa mill control system – Aldanzolotto Russia
Development and implementation of process control and automation systems for several large gold
projects.
Development of process control & instrumentation for Zaldivar Copper - Chile
Development and audit of metallurgical accounting systems (Goldfields, Harmony & Dissel).
Development of biological heap leach monitoring and control system and techniques in conjuction with
ANSTO.
Development of instrumentation and control systems for Suzdal and Bogoso BIOX projects.
PWA
Research and Process Development
Development of an innovative process for the manufacture of artificial tenorite (copper oxide used as a
black pigment in ceramic manufacture).
Development of caustic / soda ash leach process for pre leach treatment of arsenical roaster calcine.
(This process was developed and implemented independently by Gencor Process Research and has now
been commercialised as HiTeCC bu Goldfields).
Research and development of commercial leach aids in conjunction with major chemical supply company.
Development and implementation of bismuth trioxide as a substitute for lead oxide (litharge) in assay
fluxes.
Development of semi-refractory & preg-robbing ore processing techniques.
Development of innovative CIL regimes for treatment of preg-robbing ores and BIOX products.
Development of preg-robbing index and rate to evaluate and categorise preg-robbing gold ores (in
conjunction with JMA)
Research into and development of an understanding of the mechanisms involved in the passivation /
activation of preg-robbers using biological oxidation & roasting techniques (in association with JMA)
PWA
Consulting Services
Naboom Chrome (Pty) Limited – process consultant. Investigation of tailings from this mine lead to
investigations which led to the development of the Messina Platinum project.
Okorusu Fluorspar Limited (Namibia) – process consultant and development of flotation regime for the
rejection of fluorapatite whilst maintaining fluorite recoveries.
Messina Copper Limited – process consultant
Sabi Consolidated Mines (Zimbabwe) – process consultant gold.
Aldanzoloto (CIS) – process consultant and design and supply of control system for 1 000 000 tpa mill
extension. Innovations included adaptation of control process to compensate for sporadic feeding of
clayey material from open pit.
Process consultant and clients representative, numerous tailings re-treatment projects (1.5 to 7.2 Mtpa)
- Knights Gold Mining Company Limited.
General consultant – Gold Fields - Leeudoorn
General consultant – PTP plant closure project (AGC Obuasi, Ghana)
Process Audit – Goldfields Driefontein 20 ton high grade elution facility.
Process consultant – Goldfields Ghana (Tarkwa), fine crushing for heap leach pre-feasibility study.
Process consultant – Jerooy Gold Project – Kyrgystan
Process consultant – Golden Star Resources – Ghana
Technical Consultant – Peninsular Gold plc – South East Asia
Technical Consultant – Deloitte / Ural Platinum – Russia
Technical Consultant – NMMC (various projects) – Uzbekistan
Technical Consultant – Zolotokamchatsky – Russia
Technical Consultant – ASVI – Malaysia, Russia, Philippines
Technical Consultant – NPCL – Myanmar
Technical Consultant – Zolotokamchatky – Russia
Technical Consultant – (Goldfields) Bakyrchik Project – Kazakhstan
Technical Consultant – ENK Nickel / Cobalt Projects
Technical Consultant – TVI Agata Nickel Project
PWA
Laboratory Design, Management and Consulting Services
Design and development of an analytical and metallurgical laboratory in Prestea (Ghana).
Design of a high volume, low contamination sample preparation facility for geochemical and exploration
samples – Bayfield Laboratory Services Limited.
Development of an innovative method for the determination of fixed and volatile carbon values by Leco
analyser.
Consultant to Performance Laboratories (RSA & Ghana).
Development of a procedure for the simultaneous determination of arsenic and iron values in drill cores.
Barnex / JCI Limited – metallurgical investigations for Prestea feasibility study. Development,
implementation and supervision of entire program.
Quality control consultant to Performance Laboratories (Ghana) Limited and Bogoso Gold Limited.
Birim Goldfields Inc. – Analytical checks and metallurgical investigations for feasibility study and
presentation to Vancouver Stock Exchange.
Laboratory design – Kalana Gold Project (Mali)
Laboratory design – Various Gold Projects (Tanzania)
PWA
ASSOCIATIONS & RESOURCES
In addition to the resources already mentioned, PWA has associations with many established operating,
engineering and consulting companies. These associations are being expanded nationally as well as internationally,
to provide a solid technical and professional base.
These associations and resources allow us to offer the client the following capabilities;
Project Evaluation
Project Finance
Environmental Evaluation, Planning and Consulting
Process Development & Design
Project Design and Execution
Operations Management
We welcome the opportunity to discuss the capabilities of PWA and its associates and alliances, with our client’s
to offer them the optimal solution specific to their project or requirements.
For additional information please consult our website : www.pwaltd.net or;
Contact : Peter Wallwin +60 19 347 7468 / [email protected]
E&O.E.
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