GTT’s membrane technology selected for the world’s largest ethane storage tank

GTT has received an order from its partner China Chengda Engineering Co., Ltd, for the design of an ethane full-containment membrane tank in Ningbo, Zhejiang Province, China, for Ningbo Union King New Material Limited, a subsidiary of Union King Holding Ltd, following the strategic cooperation agreement signed with GTT in December 2025 during the French presidential state visit to China.

A record-breaking project for GTT

With a capacity of 200,000 m³, the tank will be the world’s largest dedicated to ethane storage. In addition to ethane, the tank will also be capable of storing other liquefied gases, including propane, butane and LPG (Liquefied Petroleum Gas).

Drawing on GTT’s decades of expertise in membrane containment systems, GST® technology improves thermal efficiency, optimises material usage, and enables the construction of very large capacity tanks. The project is scheduled for delivery in the fourth quarter of 2028.

French technological excellence

This order illustrates the global leadership and technological expertise of French engineering in the liquefied gas sector. It also reflects the direct economic benefits of French commercial diplomacy internationally, by strengthening the presence of French industrial champions in the Chinese market.

Photo : Ewan Lebourdais