Laboratory Supervisor Continuous Improvement

RICARDO M DE CASTRO

**** ********** **** ***, ***** Las Vegas, NV 89084

Tel Cell 702-***-**** email: *******@*****.***

Professional Qualifications:

Bachelor of Science in Chemical Engineering/Minor in Chemistry St. Louis University, Philippines

• Thirty (30) years of experience in the analytical laboratory using the state of the art instruments like the AAS,GFAAS, IC, ICPMS, XRF, XRD, Mercury analyzer, Sulfur analyzer, IR, UV/VIS.

• Wet Bench, process control, on-line analysis, wet/fire assaying, metallurgical testing, Bullion/Dore analysis and settlement, QA/QC management, environmental analysis, LIMS network, continuous improvement projects,

• 5S lean manufacturing, supervisory management, performing internal/external audits.

• Ability to work in a fast pace interdisciplinary team environment. Professional Experiences:

Coeur Alaska Kensington Mines Apr, 2016 Nov,2017

Juneau, Alaska

Laboratory Supervisor: Maintaining quality assays on shipment gold concentrates, updating and revising of SOP, establishing analytical skills of technicians. Intrepid Potash Mining LLC May, 2015 Mar, 2016

Carlsbad, NM

Laboratory Manager: Implementation of updated analytical procedures for processing brine solution for potash production, coaching technicians on instrumental techniques, assisting process operations through research and development. Kappes Cassidy & Associates Jun, 2013 Feb, 2015

Florin Analytical Services

Reno, Nevada

Senior Chemist/Metallurgist: Consult/interact with mining laboratories to solve analytical requirements, conducted external audits to two mining laboratories ensuring compliance to current QA/QC protocol for data validation. Nixon Fork Mines Apr, 2012 May, 2013

Anchorage, Alaska

Chief Chemist/Laboratory Manager: Directs the operation of the laboratory focusing on safety, environmental stewardship, and timely quality results. Assisting the mill operations on start-up of carbon-in-leach gold recovery process. Improved sampling technique and revised analytical procedures.

(Mine Closure)

Kinross Round Mountain Mines May, 2005 Apr, 2012

Round Mountain, Nevada

Laboratory Supervisor: Preparation of laboratory accreditation to ISO-17023 Mineral Analysis Certification, recognized for replacing litharge flux to Bismuth Trioxide metal extraction on fire assaying technique, participation in Round Robin Testing for performance evaluation, implementation of 5S Lean Manufacturing, maintained 24 years laboratory safety record with no lost time incident. Metallic Ventures Nov, 2003 May, 2005

Hawthorne, Nevada

Mine Chemist/Laboratory Supervisor: Commissioning and startup of laboratory operations, metallurgical testing improving mill efficiency and recovery.

(Mine Closure)

Nevada Environmental Laboratory Jun, 2002 Oct, 2003 Las Vegas, Nevada

Senior Chemist: Responsible for the Metals Department in analyzing various test samples for state and federal compliance to waste handling and disposal, participate in annual performance evaluation for certification and state licensing.

(Company Closure)

Equatorial Tonopah Copper Mines Jan, 1999 May, 2002 Tonopah, Nevada

Mine Chemist/Laboratory Supervisor: Commissioning and startup of laboratory facility, developed best acid dissolution for complete leaching of copper metal in ore sample, training and coaching of technicians, metallurgical testing, research and development.

(Mine Closure)

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