Our People

Ian Jones

General Manager

Ian oversees the Winstone Aggregates business and has over 20 years’ experience in heavy industry including steel, cement and aggregates.

He has a strong leadership background with core competencies in developing strategically capable businesses centered around ensuring customer requirements are priority.

Ian leads a team of highly skilled and experienced managers who look after 20 operating sites and a national multi-modal distribution including 90 trucks and coastal shipping.

Ian is also GM of Golden Bay Cement. He also remains General Manager of Pacific Steel during the transition of that business to its new owners, New Zealand Steel.

Gavin Laidlaw

Commercial Manager

NZICA Chartered Accountant

Gavin has over twenty years’ senior commercial and financial management experience, gained in a range of industries throughout New Zealand and Asia. He is responsible for the management of contractual and financial activities.

Mark McKenzie

National Quarries Manager

Since 1990 Mark has held numerous roles on resource projects across Australia in operations, mine, project and contract management. Mark returns to New Zealand as National Quarries Manager for GBC Winstone.

Cam Lee

National Sales & Marketing

Lee Thorburn

Supply Chain Manager

An accomplished supply chain professional, Lee’s expertise is the integration of supply chain requirements within complex business environments with a strong NZ perspective and has a passion about working together with customers to find the best solutions

Natasha Dunbier

Human Resource Manager

Natasha has over 20 years’ experience in building people performance to drive business results within large complex organizations across a range of industries.  Her expertise is in developing and delivering the HR strategic direction of businesses to drive long-term commercial outcomes by transforming performance, capability and culture.