Santo Domingo Project Region III, Chile NI 43-101 Technical Report
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Santo Domingo Project Region III, Chile NI 43-101 Technical Report Prepared by: Ms Joyce Maycock, P. Eng., Wood Prepared for: Mr. Antonio Luraschi, CMC, Wood Capstone Mining Corp. Mr. Marcial Mendoza, CMC, Wood Dr. Mario Bianchin, P. Geo., Wood Effective Date: Mr. David Rennie, P. Eng., RPA 19 February, 2020 Mr. Carlos Guzman, CMC, NCL Mr. Roger Amelunxen, P. Eng., Aminpro Project Number: Mr. Michael Gingles, QP MMSA, Sunrise Americas C40029 Mr. Tom Kerr, P. Eng., Knight Piésold Mr. Roy Betinol, P. Eng., BRASS. Mr. Lyn Jones, P. Eng., MPlan International Dr. Gregg Bush, P. Eng. CERTIFICATE OF QUALIFIED PERSON Av. Apoquindo 3846, Piso 15 Las Condes, Santiago 7550123, Chile I, Joyce Maycock, P.Eng., am employed as a Project Manager with Amec Foster Wheeler Ingeniería y Construcción Ltda (doing business as Wood), located at Avenida Presidente Riesco 5335, Las Condes, Santiago, Chile. This certificate applies to the technical report titled “Santo Domingo Project, Region III, Chile, NI 43-101 Technical Report” that has an effective date of 19 February, 2020 (the “technical report”). I am a Professional Engineer with Engineers and Geoscientists of British Columbia (membership number 13331). I graduated from the Royal School of Mines, Imperial College, University of London, with a Bachelor of Science (Engineering) degree in Metallurgy in 1969. Since 1969 I have continually been involved in mineral processing operations and projects for precious and base metals in Argentina, Canada, Chile, Peru, and Zambia. From 2009 to date I have worked as report co-ordinator for many prefeasibility and feasibility reports including a feasibility study for Santo Domingo; for feasibility studies for Mina Justa, Minsur and Zafranal, CMZ in Peru; for a feasibility study for El Espino, Pucobre; for a prefeasibility study for Lobo Marte, Kinross; a feasibility study for Maricunga, Kinross; a feasibility study for Angostura, Greystar; a prefeasibility and feasibility study for Cerro Casale, Barrick/Kinross; a scoping study for Zaldivar Sulphides, Barrick; and a feasibility study for Guanaco for Compañía Minera Guanaco. As a result of my experience and qualifications, I am a Qualified Person as defined in National Instrument 43–101 Standards of Disclosure for Mineral Projects (NI 43–101). I have not visited the Santo Domingo Project. I am responsible for Sections 1.1 to 1.3, 1.15.1, 1.22, 1.24.1, 1.24.5; Sections 2.1 to 2.3, 2.5 to 2.7; Sections 3.1, 3.2; Section 4; Section 5; Sections 18.1, 18.2.3, 18.7; Section 23; Sections 24.1, 24.5.1, 24.5.8; Sections 25.1, 25.2, 25.10, 25.16; and Section 27 of the technical report. I am independent of Capstone Mining Corp. as independence is described by Section 1.5 of NI 43–101. I have previously co-authored the following technical reports on the project: • Maycock, J., Luraschi, A., Mendoza, M., Bianchin, M., Rennie, D., Guzman, C., Amelunxen, R., Gingles, M., Kerr, T., and Betinol, R., 2018: Santo Domingo Project, Region III, Chile, NI 43-101 Technical Report on Feasibility Study Update: technical report prepared by Amec Foster Wheeler International Ingeniería y Construcción Limitada, Roscoe Postle Associates Inc., NCL Ltda, Aminpro Chile SPA, Sunrise Americas LLC, Knight Piésold S.A., and BRASS Chile SA for Capstone Mining Corp., effective date 26 November, 2018 • Maycock, J., Gopfert, H., Rennie D., Guzman, C., Frost, D., Kerr, T., Betinol, R., Klimek, A., and Khera V., 2014: Santo Domingo Project, Region III, Chile, NI 43-101 Technical Report on Feasibility Study: technical report prepared by Amec International Ingeniería y Construcción Limitada, NCL Ltda, Roscoe Postle Associates Inc., Knight Piésold and Co., and BRASS Chile SA, effective date 22 May, 2014 I have read NI 43–101 and the sections of the technical report for which I am responsible have been prepared in compliance with that Instrument. As of the effective date of the technical report, to the best of my knowledge, information and belief, the sections of the technical report for which I am responsible contain all scientific and technical information that is required to be disclosed to make the technical report not misleading. Dated: 24 March, 2020 “Signed and sealed” Joyce Maycock, P.Eng. CERTIFICATE OF QUALIFIED PERSON Avenida Presidente Riesco 5335 Las Condes, Santiago I, Dr. Antonio Luraschi, CMC, am employed as a Manager of Metallurgical Development with Amec Foster Wheeler Ingeniería y Construcción Ltda. (doing business as Wood), located at Avenida Presidente Riesco 5335, Las Condes, Santiago, Chile. This certificate applies to the technical report titled “Santo Domingo Project, Region III, Chile, NI 43-101 Technical Report” that has an effective date of 19 February, 2020 (the “technical report”). I am a Registered Member of the Chilean Institute of Mining Engineers and a Qualified Person (persona competente) with the Chilean Mining Commission, registration number #0188. I graduated from University of Concepcion, Chile, as a Chemical Professional Engineer and Metallurgical Professional Engineer in 1971, and obtained M.Sc. (1973) and Ph.D. (1976) degrees from the Massachusetts Institute of Technology in the United States. I have practiced my profession for 43 years. I have been directly involved in a number of mining and metallurgical projects, specifically in their process and project development and financial analysis, including financial evaluation of several similar mining development projects in recent years. As a result of my experience and qualifications, I am a Qualified Person as defined in National Instrument 43–101 Standards of Disclosure for Mineral Projects (NI 43–101). I have not visited the Santo Domingo Project site. I am responsible for Sections 1.1, 1.15.5, 1.17, 1.18 to 1.21, 1.23, 1.24.1, 1.24.5, 1.24.7 to 1.24.11; Sections 2.1 to 2.3, 2.5, 2.6; Section 3; Section 18.8; Section 19; Section 21.1.1, 21.1.3, 21.1.5 to 21.1.13, 21.2.3 to 21.2.8; Section 22; Sections 24.1, 24.5.9.1, 24.5.9.2, 24.5.9.4, 24.6, 24.8.1.1, 24.8.2.3 to 24.8.2.7, 24.8.3.1, 24.8.3.3, 24.8.3.9, 24.8.4, 24.9 to 24.11, Sections 25.1, 25.12 to 25.15, 25.18.5 to 25.18.10; and Section 27 of the technical report. I am independent of Capstone Mining Corp. as independence is described by Section 1.5 of NI 43–101. I have been involved with the Santo Domingo report since 2018, and have previously co-authored a technical report on the project: • Maycock, J., Luraschi, A., Mendoza, M., Bianchin, M., Rennie, D., Guzman, C., Amelunxen, R., Gingles, M., Kerr, T., and Betinol, R., 2018: Santo Domingo Project, Region III, Chile, NI 43-101 Technical Report on Feasibility Study Update: technical report prepared by Amec Foster Wheeler International Ingeniería y Construcción Limitada, Roscoe Postle Associates Inc., NCL Ltda, Aminpro Chile SPA, Sunrise Americas LLC, Knight Piésold S.A., and BRASS Chile SA for Capstone Mining Corp., effective date 26 November, 2018 I have read NI 43–101 and the sections of the technical report for which I am responsible have been prepared in compliance with that Instrument. As of the effective date of the technical report, to the best of my knowledge, information and belief, the sections of the technical report for which I am responsible contain all scientific and technical information that is required to be disclosed to make the technical report not misleading. Dated: 24 March, 2020 “Signed” Dr Antonio Luraschi, CMC. CERTIFICATE OF QUALIFIED PERSON Avenida Presidente Riesco 5335, Las Condes, Santiago I, Marcial Mendoza, CMC., am employed as a Supervising Engineer Process and Technology with Amec Foster Wheeler Ingeniería y Construcción Ltda (doing business as Wood), located at located at Avenida Presidente Riesco 5335, Las Condes, Santiago, Chile. This certificate applies to the technical report titled “Santo Domingo Project, Region III, Chile, NI 43-101 Technical Report” that has an effective date of 19 February, 2020 (the “technical report”). I am a Qualified Person (persona competente) with the Chilean Mining Commission, registration number #0175. I graduated from University of Concepcion, Chile, as a Metallurgical Professional Engineer in 1984. I have practiced my profession for 35 years. During this time, I have been directly involved in, and supervised, the design of metallurgical testwork programs and pilot plant testing, in designing process flowsheets and selection of mineral processing equipment. I have been directly involved in process engineering design and construction for copper projects in Chile. As a result of my experience and qualifications, I am a Qualified Person as defined in National Instrument 43–101 Standards of Disclosure for Mineral Projects (NI 43–101). I have not visited the Santo Domingo Project. I am responsible for Sections 1.1, 1.8.1, 1.8.2, 1.8.3, 1.14, 1.24.1, 1.24.4, 1.25.1, 1.25.4, Sections 2.1 to 2.3, 2.6; Sections 3.1, 3.2, 3.3; Sections 13.1.1 to 13.1.3, 13.1.5 to 13.1.10, 13.3.1, 13.4.1, 13.4.2, 13.5.1; Section 17; Section 18.5.2; Sections 21.1.3, 21.2.2, Sections 24.4.2 to 24.4.3, 24.4.4.1, 24.4.5, 24.8.1.3, 24.8.3.3, 24.8.3.6 to 24.8.3.8; Sections 25.1, 25.5, 25.9, 25.17; Sections 26.1, 26.4.1; and Section 27 of the technical report.