Market Update: Praxair Inc (NYSE:PX) – Praxair Further Enhances Its Helium Sourcing in the United States

[Business Wire] – Praxair, Inc. , a global leader in the production and supply of helium and other industrial gases, announced today that it has signed a long-term agreement with Castleton Commodities International . . . → Read More: Market Update: Praxair Inc (NYSE:PX) – Praxair Further Enhances Its Helium Sourcing in the United States Similar Articles: Company Update: Praxair Inc (NYSE:PX) – Praxair Signs Long-Term Helium Purchase Agreement Market Update: Praxair Inc (NYSE:PX) – Praxair Reports Second-Quarter 2015 Results Market Update: Praxair Inc (NYSE:PX) – Praxair Named to Forbes’ America’s Best Employers List for 2015