People

Switzerland: Neustark has appointed Christoph Kisker as its Chief Revenue Officer. He will lead commercial functions at the company to target global growth. Kisker previously worked as the VP Global Sales (Digital Consulting) for software-as-a-service company Celonis. Before that he held the role of Assistant Manager at KPMG.

Switzerland-based Neustark is commercialising technology to store CO₂ from the air in recycled mineral waste such as demolished concrete. Its proprietary process captures CO₂ from biogas producers and then binds it into mineral waste such as demolition concrete via an accelerated mineralisation process. The company has rolled out its carbon removal technology at 19 sites across Switzerland, Austria, Liechtenstein and Germany. Holcim invested in Neustark in 2023.

Colombia: Cemex Colombia has appointed Juana María Serna as Commercial Vice President. She previously worked as the Vice President for Strategic Planning for Cemex Colombia & Peru and the VP for Builders and Urbanization Solutions for Cemex Colombia from late 2020. Earlier in her career she worked for Cemex Group in Mexico, becoming Global Customer Experience Director in 2018. She started working for Cemex in Colombia in 2007. Serna holds an undergraduate degree in Architecture and a Master of Business Administration from the Universidad de Los Andes in Bogotá.

India: Wonder Cement has appointed Sanjiv Waid as State Head. He previously worked as a Sales Marketing Manager for Ambuja Cements and has held roles with Nuvoco Vistas and ACC. He holds a bachelor’s in Industrial Chemistry from Delhi University.

India: Gebr. Pfeiffer India has appointed Sridhar Shanmugha Sundaram as Senior Vice President, Head of Sales & Marketing.

Sundaram previously worked for FLSmidth for over 30 years. He started in the early 1990s as an Engineer – Plant Engineering and later became Manager - Cement Project Sales in India in the mid-2000s. Amongst other roles he was the Head of Project Sales in India in the mid-2010s and his last position with FLSmidth was as Vice President, Head of Global Product Line - Grinding and Gears from early 2023. Sundaram holds an undergraduate degree in Engineering from the College of Engineering Guindy in Chennai and an Executive Masters of Business Administration from Copenhagen Business School in Denmark.

UK: Aggregate Industries has appointed Lee Sleight as its new CEO. He succeeds Dragan Maksimovic in the post, who was appointed as Region Head West Europe earlier in 2024. Sleight will take up his new position from 1 August 2024.

Sleight joined the UK subsidiary of Holcim in 2021 as the managing director of the ready-mixed concrete division. He became the head of the aggregates division in late 2023. Prior to his time with Aggregate Industries, Sleight worked for Sika in the UK from 2008 to 2019 in a variety of managerial roles. He was then appointed as Business Unit Manager for Sika in 2019.

Kaziwe Kaulule will succeed Sleight as the managing director of the company’s aggregates division. Kaziwe joined Aggregate Industries in late 2023 as Director of Strategic and Commercial Growth, having previously been CEO of Holcim’s South Africa and Zimbabwe businesses.