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Jim Cowan
Managing Director - Asia Pacific Region

Jim is the Managing Director for our operations in the Asia-Pacific region, and is the global lead for our services in the resources sector.

Jim started his career with 9-years in the food manufacturing industry working in technical, commercial, and supply chain areas. Jim then moved into strategic procurement roles in the resources sector, holding senior positions at a national and global level where he managed the strategic procurement of heavy mining equipment, mining services, and strategic commodities. Jim has 12-years experience in providing services to large mining companies in the areas of procurement transformation, category planning, strategic sourcing, and rapid cost reduction projects.

Jim is a Co-Founder of Caliba Group, and has a Bachelor of Applied Science, and a Master of Business Administration.


Catherine Andrews
Managing Director - Africa Region

Catherine is the Managing Director for our operations in the Africa region, and she is the global lead for our services in the financial services sector.

Catherine started her career with the large consulting firms in South Africa holding various accounting and auditing roles. Catherine then moved into the resources sector where she was Procurement Manager for a large Iron Ore company, and moved into a Global Strategic Procurement role for a multinational miner, sourcing and managing the supply of strategic commodities.

Catherine is a Co-Founder of Caliba Group, is a Chartered Accountant, and a Chartered Financial Analyst.


Ernst Dreyer
Partner - Africa Region

Ernst is a Partner for our operations in the Africa region, and he provides strategic advice for the resources and engineering sectors globally.

Ernst spent much of his career in technical roles with engineering and multinational mining companies before moving into supply chain management. He then spent over 12-years in supply chain management roles in the resources sector, and led the global Mining Production Supply Chain team for Anglo American before joining Caliba Group.

Ernst holds both a Masters degree in Mechanical Engineering as well as a Masters of Business Leadership degree. He has significant knowledge of the resources and engineering sectors and has gained some valuable experience in designing and managing strategic relationships with multinational suppliers.


Samantha Mathers
Partner - Asia Pacific Region

Sam is a Partner for our operations in the Asia-Pacific region, and she provides strategic advice for procurement in the corporate and government sectors globally.

Sam started her career as a commercial lawyer in a top tier law firm, before becoming a management consultant specialising in procurement, commercial & contract strategy and negotiations, and vendor and contract management, where she has over 10-years of experience. Sam has consulted to and delivered strategic projects for publicly listed companies in the banking and finance sector, aviation industry and State government. Due to Sam’s commercial legal background combined with strategic procurement experience, Sam is a leader in the field of commercial, outcome focused procurement, with deep expertise in professional services. Sam is a trusted advisor to several clients in the areas of sourcing, contract and vendor management, and commercial contracting arrangements.

Sam has a Bachelor of Laws, and is a former Director of Womensport Queensland.


Braam du Toit
Partner - Asia Pacific Region

Braam is a Partner for our operations in the Asia-Pacific region, and he provides strategic advice for procurement in the resources and heavy industry sectors globally.

Braam started his career holding procurement positions in mining, banking and healthcare sectors in South Africa. Braam then held senior strategic procurement positions at Anglo American for 7-years, including Capital Procurement Manager at Anlgo Platinum and Senior Global Category Manager for EPCM & Mining Services, and during this time moved to Australia. Braam also has significant experience in procure-to-pay where he has managed large P2P projects in the healthcare and mining sectors. Braam is a key member of the senior management team and leads our EPCM, mining services, and spend management services.

Braam has a Bachelor of Law, a Bachelor of Commerce, and a Masters of Business Administration (Hons).