Board & Management
Board of Directors
Quinton Hildebrand
Managing Director & Chief Executive Officer
Quinton Hildebrand
BSc AgEcon, MBA - Managing Director & Chief Executive Officer
Bio
Appointed 26 August 2019, Quinton has more than 25 years of experience in the agribusiness and food industries across Australia and in South Africa. He has extensive experience in general management, commerce, marketing, sales, supply chain and logistics, planning and operations.
In his most recent role which commenced in 2015, Quinton was Chief Commercial Officer and Operations Excellence Director at Ingham’s Group Limited. In 2018, Quinton was appointed as Interim Chief Executive Officer (CEO).
Prior to joining Ingham’s Group Limited, Quinton was CEO of Mackay Sugar Limited from 2008 to 2015, General Manager Marketing at Illovo Sugar in South Africa from 2007 to 2008, and International Marketing Director at South African Sugar Association from 2001 to 2007.
Quinton has a Bachelor of Science in Agricultural Economics from the University of Natal in South Africa, a Master of Business Administration from the Edinburgh Business School in Scotland, and a Graduate Diploma in Banking from the Institute of Bankers in South Africa.
Mick McMahon
Ridley Chair & Independent Non-Executive Director
Mick McMahon
B Ec (UTAS) / Harvard AMP 176 - Ridley Chair & Independent Non-Executive Director
Bio
Appointed in August 2020, Mick is a former Managing Director and CEO of Inghams, led Inghams through its Initial Public Offering (IPO) process and was Executive Chairman of Inghams prior to its IPO. Mick has over 37 years management and director experience, having served as Managing Director and CEO of Skilled Group for five years, COO of Coles Supermarkets and Managing Director of Coles Express during five years at Coles Group, and spent 19 years with Royal Dutch Shell both in Australia and overseas.
Mick is a former Non-Executive Director of Metcash Limited and former Chairman of Red Rock Leisure.
Mick graduated in Economics from the University of Tasmania and has completed the Advanced Management Program at Harvard Business School.
Other current listed company directorships
- Formerly: Seafarms Limited from November 2021 to 6th May 2022.
Daniel Masters
Non-Executive Director
Daniel Masters
BComm, Adelaide University and Stanford Executive Program, Stanford Graduate School of Business - Non-Executive Director
Bio
Appointed on 4 October 2024, Dan is a partner and founding member of AGR Partners LLC. AGR Partners LLC is an associated entity of Ridley’s largest shareholder, AGR Agricultural Investments LLC. Dan serves on the AGR Partners LLC investment committee and several AGR portfolio companies. Dan’s current board positions include SEMO Milling LLC, Rembrandt Foods Holdings LLC and Dairy Technology Services Limited (NZ). Prior to AGR, Dan served as Investment Manager at two Australian based captive private equity funds.
Kirsty Clarke
General Counsel and Company Secretary
Kirsty Clarke
BA, LLB (Hons), Grad Dip Corporate Governance - General Counsel and Company Secretary
Bio
Kirsty is Ridley Corporations General Counsel and Company Secretary. Kirsty was previously general counsel and company secretary for the Tandem Group for over 6 years. Prior to that she held various senior in house legal roles at Service Stream and Australia Post, after initially commencing her career in private practice.
Melanie Laing
Independent Non-Executive Director
Melanie Laing
BA (Hons), FAICD, FAHRI, CEW - Independent Non-Executive Director
Bio
Appointed 1 September 2023, Melanie brings a depth of experience as a c-suite executive and people and culture leader in large multinational and listed corporates, as well as entrepreneurial and rapid growth businesses.
Melanie has a Bachelor of Arts (Hons) from the University of the Witwatersrand, and has more than 30 years of professional experience across various sectors and geographies. Melanie is a non-executive director and people and remuneration committee chair of AUB Group Limited, and has also held global and regional executive leadership roles at the Commonwealth Bank of Australia, Origin Energy and Unisys Corporation.
Melanie is a fellow of both the Australian Institute of Company Directors (FAICD) and the Australian Human Resources Institute (FAHRI), a member of Chief Executive Women (CEW) Australia and a certified chair with the Advisory Board Centre.
Other current listed company directorships
- AUB Group Limited from November 2023.
- Formerly: Keypath Education International Inc & Inflection Inc
Julie Raffe
Independent Non-Executive Director
Julie Raffe
GAICD, FFIN, FCA - Independent Non-Executive Director
Bio
Appointed in September 2022, Julie has held significant executive and non-executive roles across multiple sectors.
With 40 years of professional experience, Julie is currently a non-executive director of Latitude Group Holdings Limited, President of the National Board for Finance Executives Institute of Australia; and Deputy Chair and Treasurer of Entertainment Assist (a not-for-profit industry forum).
Julie is a former Finance Director and Company Secretary for Village Roadshow Limited (previously an ASX 200/300 listed company with operations in Australia, Asia, USA and Europe). Julie has also previously held positions as a non-executive board director and Audit and Risk Committee member for a number of not for profit, private and listed entities. This includes being a member of the advisory committee and Chair of the Audit and Risk Committee for Ironman 4 x 4 Pty Ltd and Member of the Audit and Risk Committee for Peter MacCallum Cancer Centre Foundation.
Other current listed company directorships
- Latitude Group Holdings Limited
Rhys Jones
Independent Non-Executive Director
Rhys Jones
BSc (Chem), BBS(Hons) (1st), MBS - Independent Non-Executive Director
Bio
Appointed on 27 August 2020, Rhys has a 30-year career working in the Australasian building, manufacturing and packaging industries. Rhys is currently the Managing Director and Chief Executive Officer of Vulcan, an ASX/NZX listed steel distributor with over 72 business units across Australasia. He was also a Director of Metro Performance Glass Ltd. Prior to joining Vulcan in 2006, Rhys held senior roles in particular with Carter Holt Harvey and Fletcher Challenge, including as Chief Operating Officer of the Pulp, Paper and Packaging businesses of Carter Holt Harvey.
Management Team
Quinton Hildebrand
Managing Director & Chief Executive Officer
Quinton Hildebrand
BSc AgEcon, MBA - Managing Director & Chief Executive Officer
Bio
Appointed 26 August 2019, Quinton has more than 25 years of experience in the agribusiness and food industries across Australia and in South Africa. He has extensive experience in general management, commerce, marketing, sales, supply chain and logistics, planning and operations.
In his most recent role which commenced in 2015, Quinton was Chief Commercial Officer and Operations Excellence Director at Ingham’s Group Limited. In 2018, Quinton was appointed as Interim Chief Executive Officer (CEO).
Prior to joining Ingham’s Group Limited, Quinton was CEO of Mackay Sugar Limited from 2008 to 2015, General Manager Marketing at Illovo Sugar in South Africa from 2007 to 2008, and International Marketing Director at South African Sugar Association from 2001 to 2007.
Quinton has a Bachelor of Science in Agricultural Economics from the University of Natal in South Africa, a Master of Business Administration from the Edinburgh Business School in Scotland, and a Graduate Diploma in Banking from the Institute of Bankers in South Africa.
Scott Bowmann
Chief Operating Officer - Fertilisers
Scott Bowmann
B Comm, Bachelor of Commerce - Chief Operating Officer - Fertilisers
Bio
Scott was appointed Chief Operating Officer- Fertiliser, following the purchase of Incitec Pivot from Dyno Nobel Limited on 1 October 2025. Previously the President of Incitec Pivot, Scott has held various senior leadership positions, spanning fertiliser and chemical manufacturing and distribution, global supply chains, international commodity trading, strategy development and customer engagement.
His international and local experience has enabled him to negotiate and execute major, long-term commercial supply and trading agreements.
Chris Opperman
Chief Financial Officer
Chris Opperman
BCompt (Accounting) Honours - Chief Financial Officer
Bio
Prior to joining Ridley Corporation in January 2026, Chris was Chief Financial Officer at EnergyAustralia. Chris was Interim President at Incitec Pivot Fertilisers, having previously been their Chief Financial Officer.
During his 14-year career at Incitec Pivot Fertilisers, Chris held a number of senior executive roles including Interim President, Chief Financial Officer, Chief Financial Officer Dyno Nobel Asia Pacific and General Manager Finance and Investor Relations.
Chris has a BCompt (Accounting) Honours degree, and is a member of Chartered Accountants Australia and New Zealand.
Claire Rosel
Chief People Officer
Claire Rosel
BA (hons), Grad Dip Human Resource Management - Chief People Officer
Bio
Claire has extensive international experience in Human Resources Management and Industrial Relations. She joined Ridley in May 2022 having held senior roles across a number of industries including logistics, pharmaceutical and financial services. Most recently and prior to joining Ridley, Claire worked at Toll Holdings, GlaxoSmithKline, CSL and Thomson Reuters.
In this role, Claire is responsible for the People, Safety and Quality teams.
Sandie Clowes
Chief Operating Officer – Packaged Products & Supplements
Sandie Clowes
MBA & DipBus – Macquarie University - Chief Operating Officer – Packaged Products & Supplements
Bio
Sandie has more than 30 years of experience in the agribusiness and food industries across Australia and the United Kingdom, with roles covering general management, commerce, marketing, sales, logistics and strategic planning.
Prior to joining Ridley Corporation in 2023, she was General Manager – Ingredients at major flour and bakery manufacturer Allied Pinnacle, and held senior sales roles at yeast and bakery ingredient supplier Lesaffre and George Weston Foods. Prior to her relocation from the UK, she served as General Manager – Monogastric at ABAgri UK and commercial manager at Speedibake.
Sandie has a Master of Business Administration and Graduate Diploma in Management from the Macquarie Graduate School of Management.
B.AgEc(Hons) – University of New England – Chief Operating Officer – Bulk Stockfeed
Ricardo Esquerra
Chief Operating Officer - NovaqPRO
Ricardo Esquerra
MBA (Mgt.), Veterinarian, MSc and PhD Poultry Nutritionist - Chief Operating Officer - NovaqPRO
Bio
With an academic and commercial career spanning three decades, Ricardo joined Ridley in November 2020 and has previously held leadership roles including General Manager – Nutrition and Technology.
A specialist in technical innovation with considerable experience across poultry, swine, ruminant and aqua nutrition, Ricardo’s expertise in animal feeds and feed additives has seen his career progress around the globe, having worked in LATAM, North America, Europe, Africa, South East Asia and China.
Ricardo brings to Ridley a wealth of knowledge and experience and enjoys a reputation for establishing links between R&D, Technical, Marketing and Sales teams focused on animal production, animal nutrition and animal health through nutrition – linking industry needs to value creation.