The US$250m plant is designed to produce 1Mta to supply the Colorado and Nebraska markets.
Construction is 45% complete and should wrap up in the first quarter of 2008, the report said. The process has entered its final stage, which will see the installation of machines and equipment.
The plant will employ 100 people and is scheduled to start operations by the middle of next year.
GCC produces 4Mta of cement and concrete at operations in the US, Bolivia and Mexico. The company has three plants in northern Mexico’s Chihuahua state.