Clinker Factor - Episode #29

27 April 2023 - In this episode, Ian Riley speaks to Alex Hall, CEO of and WCA Member, about his experiences in the concrete industry, the importance of artificial intelligence in optimising concrete performance, and the potential to reduce costs and carbon emissions.

Cement production is responsible for approximately 7% of global greenhouse gas emissions and is possibly the hardest to abate sector. In this podcast series, the World Cement Association’s CEO, Ian Riley, talks to industry leaders, experts and technological innovators from across the globe, bringing insights and fresh perspectives on how the cement sector can decarbonise and improve sustainability. Suitable for anyone interested in climate change mitigation and industrial sustainability.


Ian Riley

Clinker Factor Host: CEO, World Cement Association

After graduating from Cambridge University in 1979, Mr Riley worked in a number of management roles in the UK, the USA, Australia and Japan before moving to China in 1998. He was General Manager of a British project management and consulting firm, based in Shanghai and also Chairman of the British Chamber of Commerce in Shanghai before joining Holcim/Huaxin in 2006.

As Huaxin VP responsible for international business, strategy and sustainability, he oversaw Huaxin’s first overseas venture in Tajikistan. Mr Riley was Greater China Country Head for LafargeHolcim from 2014 to 2019.  He has been CEO of WCA since September 1, 2019.

Alex Hall

Clinker Factor Guest: CEO,

Alex has 25 years experience in the building materials, construction and ESG sectors.

Alex has held executive leadership positions at Holcim, the world’s largest cement producer and Suffolk, the largest private construction and technology company in the United States. is the world leading artificial intelligence company using machine learning to optimize concrete, the world’s most consumed product after water.