Switzerland: Holcim has appointed Rodolfo Vargas Pedroza as Group Expert Geology. He previously worked as Group Lead Geology for the company from 2018. He has worked for Holcim Group since 2018 and other prior positions include Lead Geologist and Senior Mining Engineer. Before this he was the Head of Geology and Mining for Cemex from 2001 to 2011 and the Geology and Mining Manager for Cemex Colombia in the late 1990s. Vargas Pedroza is a graduate in geology from the Universidad Nacional de Colombia.

Thailand: Siam City Cement has appointed Ramjan Sachdeva as its group chief financial officer. He succeeds Mark Anatol Schmidt in the role.

Prior to this he was the Group Head Internal Audit and Compliance for Siam City Cement in Thailand and the Group Commercial Director for mining company Vedanta in India. Earlier in his career he spent eight years working for Holcim in India in procurement and audit roles, as well as for Nestlé.

Sachdeva holds a degree in mechanical engineering from the Thapar Institute of Engineering & Technology in India and a master of business administration qualification from the University of Leicester in the UK.

UK: Germany-based Aumund Group has appointed Martin Dummigan as the managing director of its Samson Materials Handling subsidiary. He succeeds Dale Lockley in the post.

Dummigan holds a master’s degree in electrical and electronic engineering from Queen’s University in Belfast. He started his career in 1990 as a research and development engineer. Over the next 30 years he has held numerous manufacturing and corporate management positions at companies including Telestack and Terex in various countries including China, the US, Japan and South Africa. His last position was as the Group Vice President of Operations for Astec Material Solutions. He is also a co-founder of the Spadetown Brewery based in Northern Ireland.

Germany: Flender has appointed Christian Terlinde as its group chief financial officer (CFO), with effect from 1 July 2023. He will succeed group chief executive officer Andreas Evertz in the post, who has been working in the role on an interim basis.

Terlinde is currently the CFO at Germany-based commercial vehicle supplier Jost Werke. Prior to this, he held positions included CFO at Benteler Automotive and finance and controlling roles at Mahle Group and EON.