In May 2025, it was reported by L'Humanité that 250 Chinese workers have been subjected to labour rights violations at an Eqiom (part of CRH) cement plant in Lumbres, northern France.

Eqiom contracted German firm IKN to build a low carbon kiln to reduce the firm’s CO2 emissions. The project aims to replace two fossil-fuel kilns with a new ‘clinker’ production line powered by alternative fuels, including waste, biogas and natural gas. The site is considered a model for decarbonisation, and was allegedly subsidized by over EUR200 million investment, including from the French government.

IKN subcontracted the work to the Chinese company CMBI, who allegedly employed the Chinese workers in exploitative conditions, including 12-hour workdays, six day weeks, and poor living conditions.

CMBI did not respond to L'Humanité. Eqiom said "the project is being carried out in full compliance with French law and our company's values."

In June 2025, the Business & Human Rights Resource Centre invited IKN to respond to the allegations. IKN's response can be read in full below.