Mauro J Girardo 

Mauro Girardo, P.Eng., CPIM, has 19 years experience in manufacturing environments, including metal fabrication and assembly, plastic molding and assembly, and electrical assembly. He has been involved in all aspects of manufacturing from shop floor supervision, scheduling, maintenance and inventory; with a strong focus on process and productivity improvement.

Mauro has been a member of APICS and Certified in Production and Inventory Management (CPIM) since 2001. He graduated from the University of Toronto with a BASc in Mechanical Engineering and he is also a member of the Professional Engineers of Ontario (PEO).

Marrick E McDonald 
Executive Vice President
Mark G Tinkler 
Past President

Mark has been a member of APICS since 2001 and is a noted professional within the manufacturing sector. With over 25 years experience in manufacturing, he has worked in various technical and managerial capacities. 

He is a member of the American Society for Quality (ASQ) and holds several ASQ certifications, including the Certified Six Sigma Black Belt (CSSBB) certification. Mark is also a member of the Society of Manufacturing Engineers (SME) and the Project Management Institute (PMI) where he holds the PMP certification from PMI. His core beliefs are strongly focused on customer centricity, quality, productivity, and continuous improvement. 

Branko Tosic

VP Programs, Events & Corporate Relations
Branko Tosic has over 30 years experience in Supply Chain and Operations Management.

Branko Tosic has over 30 years experience in Supply Chain and Operations Management.

His expertise is in process improvements using state of the art information systems.

Branko has consulted companies in various industries including: - automotives, electronics, food processing, distribution, pharmaceuticals, transportation, and warehousing. His clients range from small and medium enterprises to very large companies operating across North America, and Europe.

Branko is Certified in Production and Inventory Management (CPIM), Integrated Resource Management (CIRM), Supply Chain Professional (CSCP), and Logistics, Transportation and Distriubtion (CLTD).

He has been a volunteer and instructor with APICS Toronto Chapter since 2000.

Branko is recognized by APICS as: - Master Instructor for CPIM and CSCP, Lead Instructor for IDP, and Associate Instructor for CLTD,

Chaim Silberstein 
VP Membership

Chaim is the president of C.S. Consulting Associates Inc. a Toronto based consulting firm, specializing in providing SCM education, consulting and fitness services.

Chaim is an APICS Master instructor for CPIM, CSCP, and Instructor Development Train The Trainer (TTT) and Learning Dynamics for Instructors (LDI).

He is an acknowledged expert and educator in the field of supply chain management (SCM) and has been speaking at conferences and conducting seminars and education programs for various APICS chapters and corporations around the globe. He also published numerous articles on these subjects.

Chaim possesses a unique combination of hands-on and consulting experience that enables him to provide value added assistance to his clients not only with the principles and techniques but also with the practical application and implementation. He has educated and helped transform many companies and improved their operations efficiencies and bottom line.

Chaim is certified as: Fellow in Production and Inventory Management (CPIM-F), Integrated Resource Management (CIRM), Fellow in Supply Chain Professional (CSCP-F), SCOR Professional (SCOR-P) and Certified Logistics, Transportation and Distribution Fellow (CLTD-F) by APICS.  Jonah by the Goldratt Institute, and as an Older Adult Fitness Specialist (OAS) by CanFitPro.

Sunnie Feng Zhi

Director, Events
* Over 19 years of Procurement progressive experience in managing high-stakes procurement initiatives - Equipment, IT, Services etc. ; 
* Highly skilled negotiator with demonstrated ability to effectively source and manage suppliers.
* APICS CPIM and APICS Certified Supply Chain Professional (CSCP).

Emily Zhao 

VP Communications 

Emily Jian Zhao has been an APICS member since 2009 and is a Materials Planning Supervisor at a leading public safety company. She has over 16 years experience in manufacturing environments including consumer electronics, automotive, and electrical assembly. She has been involved in product development, engineering services, purchasing, forecasting, scheduling, material planning, and inventory control.


Natalie Mask 
Director, Education
Natalie is employed at Johnson & Johnson as a Senior Supply Planner in the Consumer sector. She has 8 years of experience in supply chain industry. She has a degree in Mechanical Engineering & Management from McMaster University.

Natalie has volunteered with APICS Toronto for a year before appointed to the Chapter Board. She is also the community pillar lead for J&J's Consumer Women's Leadership Initiative (WLI).