MATHESON Announces Plan to Build 2nd Air Separation Unit in Southern California

Basking Ridge, NJ – MATHESON announced today that it plans to build a 2nd state of the art large capacity Air Separation Unit, (ASU), in the Los Angeles, California area. 

“The new ASU is in line with MATHESON’s ongoing strategy of expansion in high growth markets and the vertical integration of our merchant bulk liquid and cylinder gas distribution capabilities to include our recent acquisition of Sims Welding,” stated Scott Kallman, President CEO. “The goal of the strategy is to meet the total gas and equipment needs of our Customers safely, reliably, and cost-effectively. The added capacity is intended to meet the growth in the Los Angeles and San Diego areas over the upcoming 5-7 years.”

“This ASU will produce liquid nitrogen, liquid oxygen and liquid argon, all used to supply multiple markets, including aerospace, electronics, environmental, fabrication, food, medical and metals applications. The investment will allow MATHESON to better support our current Customers by adding to our existing Southwest network of ASUs in California, Arizona, and New Mexico,” explained Nigel McMullen, Senior Vice President Bulk Gas Business. “The plant is expected to be on stream, producing high-purity merchant product, in 2017.”


MATHESON is a single source for industrial, welding and safety supplies, medical, specialty and electronic gases, gas handling equipment, high performance purification systems, engineering and gas management services, and on-site gas generation with a mission to deliver innovative solutions for global customer requirements. MATHESON is the largest subsidiary of the Taiyo Nippon Sanso Corporation Group, one of the five largest suppliers of industrial, specialty, and electronics gases in the world.


Beth Sullivan  


Christine Scully  



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