MST’s management team work together to guide MST’s activities around the world, to provide a stable and productive working environment for all employees and to ensure customer satisfaction.

Haydn Roberts

Chief Executive Officer

Haydn is the CEO of MST Global. Haydn commenced his career in underground gold mines in South Africa before joining Rio Tinto with roles in manufacturing, smelting and mining in the UK and USA. He has held senior leadership roles with Groundprobe and Komatsu Modular Mining Systems based in the US and Australia. Prior to MST Global, Haydn was the CEO of Leica Mining and COO of Hexagon Mining. He has extensive experience in executive management, mining technology and best practice. Haydn has a Mining Engineering degree from Cardiff University, Wales and a Master’s Degree in Systems Management from the University of Southern California.


Shaheed Muhammed

Chief Financial Officer

Shaheed is the CFO of MST Global. Shaheed has held senior positions at Siemens and various accounting practices. Prior to joining MST Shaheed was the CFO and Finance Director with Hexagon Mining. Shaheed overseas the Finance and Controlling function along with the Information Technology, Logistics and Operations. Shaheed holds a Bachelor’s Degree, majoring in Accounting and Financial Management from the University of the South Pacific.



Vadim Parfenov

Chief Technology Officer

Vadim is the CTO of MST Global. Vadim commenced his career as a software engineer at Komatsu Modular Mining Systems and since that time he has held multiple senior leadership roles at Scientific Technologies Corporation and Leica Mining. Vadim has extensive experience in delivering innovative technology products for mining and other industries. Vadim has a M.S in Systems Engineering from the University of Arizona and M.S in Computer Engineering from the Moscow Institute of Physical Engineering.


Kristine Heiler

General Manager – Human Resources

Kristine is the General Manager of Human Resources at MST Global. Kristine commenced her career in Boral Ltd and since that time has held senior leadership roles at i-Sentia and BMC Software. Kristine has extensive experience across all aspects of HR and has the ability to meet both the operational and strategic needs of the business. Kristine has tertiary qualifications in Human Resources Management and has been admitted to the Australian Institute of Human Resources with senior recognition of CAHRI.


Brett Freeman

General Manager – APAC

Brett is the General Manager – APAC for MST Global. Brett commenced his career in underground mine electrical systems in Australia before joining General Electric with roles in infrastructure, utilities and mining. He has held senior leadership roles with General Electric and JSON Capital based in Australia and US. Prior to MST Global, Brett was the Global General Manager of GE Mine Energy systems and Founding Partner of JSON Capital. He has broad experience in executive management, digital technology and mineral processing systems.

Brett has Electrical Engineering and Computer Science degrees, and a Master’s Degree in Business Marketing and Applied Finance from the from Queensland University of Technology.


Matt Zollinger

General Manager – Americas

Matt is the General Manager of the Americas for MST Global. Matt has extensive experience in the Oil and Gas industry having worked in Halliburton, British Petroleum, Amoco and El Paso Energy. Prior to joining MST, Matt was the General Manager Southwest US and Mexico for Boart Longyear and as the Regional Business Development Manager LATAM whilst based in Chile. Matt speaks Spanish fluently and has lived in the USA, Chile and Ecuador. Matt holds a Bachelor’s Degree in Marketing from Utah State University and a Masters of Business Administration from the University of Phoenix.


Charles Deacon

General Manager – EMEA

Chales is the General Manager – EMEA for MST Global. Born in the UK, Charles is a Mining Engineer by training, and started his career in production mining on a South African deep level Gold Mine in 1992. He has subsequently spent most of his career in the mining services industries predominantly in explosives and mobile mining machinery as well as minerals processing equipment to all types of mining operations and methods throughout Africa.m. He recently joined MST Global looking after the business interests of the EMEA region.

His exposure to all types of mining throughout Africa, give him a broad and in depth understanding of the mining value chain and drivers within the industry.

He holds a Bachelors Degree and Graduate Diploma in Mining Engineering, an MBA, Mine Managers Certificate, and is a Registered Chartered Engineer.


Yan Lin

General Manager – MST China

Yan is the General Manager – China for MST Global. Yan has held multiple roles in finance, accounting and operations in various industries. Prior to joining MST, Yan was the Finance Manager at Arrow Electronics in Singapore and before that with Arrow Electronics in the USA. Yan holds an Accounting Degree from the Beijing International Studies University and an MBA in Financial Management from the City University Seattle.