Praxair, Inc. has signed a long-term agreement to supply ultra-high purity industrial gases, including nitrogen (N2), oxygen (O2) and argon (Ar), as well as hydrogen (H2), to Samsung’s semiconductor manufacturing facility in Pyeongtaek, Gyeonggi province, South Korea.

This is Praxair’s largest investment in a single customer project to date.

Praxair will build, own and operate several H2 plants and air separation units (ASUs) that will supply the gases to meet Samsung’s growing semiconductor demands worldwide. Praxair will also build multiple purifiers and an extensive pipeline system to support the project.

B.S. Sung, President of Praxair Korea, stated, “For more than 40 years, we have worked closely with Samsung to provide a reliable supply of industrial gases and innovative technologies that enable them to serve their electronics customers globally, while helping drive efficiency and growth.”

He continued, “We are proud to strengthen our longstanding relationship with Samsung, a world leader in semiconductor technologies, and look forward to supporting their newest world-scale manufacturing complex.”

The first of Praxair’s new plants will start up in 2019.