Inactive Instrument

Governance Sierra Metals Inc.

SMT

CA82639W1068

Diversified Mining

Executive Committee: Sierra Metals Inc.

Manager

Positions heldSince

Luis Rojas Gallegos

Chief Tech/Sci/R&D Officer

Composition of the Board of Directors: Sierra Metals Inc.

Director	CommitteesSince

Latest Appointments: Sierra Metals Inc.

25-07-29	Sierra Metals Inc. Announces Election of Board of Directors	CI
25-06-04	Cerrado Gold Inc. Appoints Alonso Lujan as Vice President Exploration Effective June 1, 2025	CI
24-06-28	Sierra Metals Appoints New Chief Financial Officer; Begins Trading on Lima Stock Exchange	MT
24-06-28	Sierra Metals Brief: Appointing Jean Pierre Fort to the position of Chief Financial Officer, effective July 1, 2024	MT
24-06-28	Sierra Metals Inc. Announces Chief Financial Officer Changes	CI
24-06-27	Sierra Metals Names Board Chair	MT
24-06-27	Sierra Metals Brief: Miguel Aramburu has been appointed as Chair of the Board	MT

More news

Former Officers and Directors: Sierra Metals Inc.

Insider

Positions held

SinceUntil

Miguel Aramburú Álvarez-Calderón

Director/Board Member	2022-06-12	2024-06-24
Chairman	2024-06-24	2025-08-05
Independent Dir/Board Member	2022-06-12	2024-06-24

Robert Neal

Director/Board Member	2022-06-09	2025-08-05
Independent Dir/Board Member	2022-06-09	2025-08-05

Alberto Calle

Human Resources Officer

2021-10-31

2025-07-31

Rajesh Vyas

Comptroller/Controller/Auditor

2019-12-17

2025-07-31

Oscar Cabrera

Director/Board Member	2021-10-06	2022-06-12
Chairman	2022-06-12	2024-06-26
Independent Dir/Board Member	2022-06-12	2024-06-26

Douglas Cater

Director/Board Member	2009-06-09	2024-06-24
Independent Dir/Board Member	2009-06-09	2024-06-24

Carlos Santa Cruz

Director/Board Member	2021-10-06	2024-06-24
Independent Dir/Board Member	2021-10-06	2024-06-24

Koko Yamamoto

Director/Board Member	2019-07-14	2023-06-27
Independent Dir/Board Member	2019-07-14	2023-06-27

Ed Guimaraes

Compliance Officer	-	2023-01-15
Director of Finance/CFO	2014-11-16	2023-01-15
Corporate Secretary	2021-01-15	2023-01-15

Dawn Whittaker

Director/Board Member	2022-02-23	2022-12-31
Independent Dir/Board Member	2022-02-23	2022-12-31

Luis Carlos Marchese Montenegro

Director/Board Member	2020-05-19	2022-11-27
Chief Executive Officer	2020-05-31	2022-11-27

Dionisio Romero Paoletti

Director/Board Member	2015-11-15	2022-06-09
Independent Dir/Board Member	2015-11-15	2022-06-09

José Vizquerra-Benavides

Director/Board Member	2017-11-08	2021-01-28
Chairman	2021-01-28	2022-06-09
Independent Dir/Board Member	2017-11-08	2021-01-28

Steven Dean

Director/Board Member	2011-10-03	2022-06-09
Chairman	-	-
Independent Dir/Board Member	2011-10-03	-

Juan Mostajo

General Counsel

2021-11-30

Ricardo Arrarte Grau

Director/Board Member

2019-04-04

2021-07-29

Jill Neff

Corporate Secretary

2013-04-24

2020-12-31

Igor Alcides Gonzáles Galindo

Director/Board Member	2013-09-18	2020-05-19
Chief Executive Officer	2017-04-30	2020-05-30
Independent Dir/Board Member	2013-09-18	-
President	2017-04-30	2020-05-30

Andrew Dunlop

Comptroller/Controller/Auditor	2015-01-18	2019-12-17
Director of Finance/CFO	2015-01-18	2019-12-17

Gordon Babcock

Chief Operating Officer

2015-07-12

2019-08-15

R. Renaud

Director/Board Member	2003-09-30	2019-04-04
Chairman	2003-09-30	-
Independent Dir/Board Member	2003-09-30	2019-04-04

James José León Villanueva

Chief Operating Officer	2022-01-31	-
Corporate Officer/Principal	2018-12-31	2022-01-31

Mark Brennan

Chief Executive Officer	2015-04-12	2017-04-27
President	2015-04-12	2017-04-27

Alonso Lujan Nevarez

Corporate Officer/Principal

2016-09-13

Matthew C. Wunder

Corporate Officer/Principal

2015-06-30

2016-05-31

Thomas L. Robyn

Director/Board Member	2005-08-29	2014-08-26
Corporate Officer/Principal	2005-08-29	2015-06-30

Guillermo Gustavo Kaelin Lizárraga

Director/Board Member	2011-06-23	2015-06-09
Independent Dir/Board Member	2011-06-13	2015-06-09

Diego José Miranda Granda

Director/Board Member

2015-06-09

Victoria de Szarzynski

Investor Relations Contact	2014-09-09	2015-04-21
Public Communications Contact	2014-09-09	2015-04-21

Audra Walsh

Director/Board Member	2014-10-13	2015-04-11
Chief Executive Officer	2014-07-27	2015-04-11
President	2014-07-27	2015-04-11

Juan Fernando Piccini Velarde

Director of Finance/CFO

2011-07-18

2014-09-04

John S. Donnelly

Director/Board Member	2011-09-18	2013-12-30
Independent Dir/Board Member	2011-09-14	2013-12-30

David Crevier

Director/Board Member	2011-10-04	2011-10-04
Independent Dir/Board Member	2011-10-04	2011-10-04

Ernesto Duran Trinidad

Director of Finance/CFO

2010-12-19

2011-07-17

Mark C. Shonnard

Director of Finance/CFO

2010-03-01

2010-12-16

J. Eduardo González Félix

Director/Board Member

2007-07-10

2010-10-03

Mark Goodman

Director/Board Member

2008-05-31

2009-05-31

Eugene Schmidt

Corporate Officer/Principal

2009-05-13

Jesús Alberto Arias López

Director/Board Member	2023-06-27	-
Chairman	2013-03-11	2021-01-28

Leonard Teoli

Director of Finance/CFO

2002-12-31

2008-09-30

François Auclair

Corporate Officer/Principal

2008-07-27

André St. Michel

Director/Board Member

2003-07-31

2008-04-10

Arved Marin

Comptroller/Controller/Auditor	2009-06-25	-
Director of Finance/CFO	2009-08-30	-

Daniel Tellechea Salido

Director/Board Member	2023-06-27	-
Chief Executive Officer	2007-06-06	2014-07-27
President	2007-06-06	-

Mario Caron

Director/Board Member

2007-06-06

Réjean Gosselin

Director/Board Member	2006-12-31	2006-12-31
Chief Executive Officer	-	2006-12-31
President	-	2006-12-31

Robert D. Hirsh

Corporate Officer/Principal

2011-10-23

Luce Saint-Pierre

Corporate Secretary

1995-12-31

Americo Zuzunaga

Corporate Officer/Principal

Gabriel pinto

Corporate Officer/Principal

Nathalie Dion

Public Communications Contact

2009-06-25

Karl Boltz

Corporate Officer/Principal

2009-11-24

Hector Ramirez

Corporate Officer/Principal

Matthew Morrish

Investor Relations Contact	-	-
Public Communications Contact	-	-

Herbert Helmund Fiedler Villalonga

Corporate Officer/Principal

Armando Alexandri

Chief Operating Officer

M. Bédard

Public Communications Contact

Michael McAllister

Investor Relations Contact	2019-04-30	-
Corporate Officer/Principal	2015-03-31	2019-04-30

Daniel Bélisle

Director/Board Member

Augusto Chung

Corporate Officer/Principal

Age distribution of managers

Parity Men Women

Male	1
Female	0

Of which Executive Committee

Male	1
Female	0

Of which Directors

Male	0
Female	0

Sierra Metals Inc. is a Canadian mining company focused on copper production with additional base and precious metals by-product credits at its Yauricocha Mine in Peru and Bolivar Mine in Mexico. Yauricocha is an underground mine located in the western central Peru in the Yauyos province, approximately 12 kilometers (km) west of the Continental Divide. The Yauricocha property covers 18,778 hectares that straddle a 20 km strike length over the prolific Yauricocha fault, a major ore controlling structure in this part of western central Peru. The Bolivar Mine is a contiguous portion of the 15,217-hectare Bolivar Property land package within the municipality of Urique, in the Piedras Verdes mining district of Chihuahua State, Mexico. The Piedras Verdes Plant, which is located six km from the Bolivar Mine. The Company has large land packages at each of its mines with several prospective regional targets providing longer-term exploration upside and mineral resource growth potential.

Employees

1,170

Sector

Diversified Mining

More about the company