- The Tengiz Gas Separation Complex project includes engineering, procurement, construction, and commissioning.
- Completion of the Tengiz project is expected by Q1 2029.
- The GSC will recover at least 98% of ethane from dry gas.
- The gas processed at Tengiz will feed the Silleno petrochemical plant.

Project Overview
The Tengiz Gas Separation Complex (GSC) project, located in the Atyrau region of Kazakhstan, involves engineering, procurement, construction, and commissioning. TECNIMONT, a subsidiary of MAIRE, leads the consortium responsible for the project.
Timeline and Objectives
Completion of the Tengiz GSC is expected by the first quarter of 2029. The facility is designed to recover at least 98% of ethane from dry gas, which will subsequently feed the Silleno petrochemical plant.
Strategic Importance
The Tengiz GSC and the Silleno petrochemical complex are pioneering projects in Kazakhstan, notable for their scale and technological advancements. These initiatives are part of a broader effort to enhance Kazakhstan's industrial capabilities in gas and petrochemical production.
Key Stakeholders
KMG PetroChem, a subsidiary of KazMunayGas, leads petrochemical development in Kazakhstan and is a key partner in the Tengiz project. The collaboration with TECNIMONT underscores the strategic importance of the Central Asian region for MAIRE.