Appointment of William de Lumley, new Keystone and Circular Economy Director of the Colas group

As Director of Keystone, his mission is to pursue the strategy aimed at positioning Colas as a major player in the sale and production of natural and recycled aggregates in targeted development areas. Regarding the circular economy, which includes in particular the rehabilitation of sites and landfilling of waste, recycling of materials, soil decontamination and demolition, he will focus on developing an ambitious and pragmatic strategy, capitalizing on existing expertise at Colas to conquer similar markets in new geographical areas.

William de Lumley began his career in 1998 at Lafarge Granulats France, where he successively held the positions of project manager and then operations manager. In 2007, William de Lumley continued his career internationally, first in India, where he created the new Aggregates and Concrete business, then in Egypt until 2012 as quarry director, and finally in the Philippines until 2017, where he drove sustained growth in aggregates, concrete and specialty materials, and supported the integration of the Lafarge and Holcim entities.

After 10 years of multicultural experiences, he returned to France in 2017 to head the Ready-Mixed Concrete business in the Côte d'Azur, then joined the Ile-de-France region in 2020, where he held the position of director of the Seine Aval aggregates agency until 2023.

For William de Lumley: "I am proud to join Colas, and it is with enthusiasm that I commit to continuing the development of the materials business, while respecting biodiversity and anchoring our actions sustainably in the regions."

William de Lumley, 53, is a graduate of the Albert de Lapparent Geological Institute (now the UniLasalle Polytechnic Institute).