Matheson Tri-Gas, the business company of Nippon Sanso Holdings signed an agreement to supply oxygen with One Point Five, which is tackling the direct air capture (DAC) technology by recycling CO2 directly from the atmosphere and is constructing a DAC plant in Texas now. One Point Five　is engaged in the low carbonization business as a member of the Occidental Petroleum Group of the U.S. 　　

While launching a business strategy to establish more than 70 DAC plants over the world by 2035, the company is planning to construct the world’s highest class DAC plant to recycle CO2 of 500,000 tons in Ector County, Texas for a planned start of operation in the middle of 2025.
　 　
The DAC process in the plant takes in air with a large-type fan and recycles CO2 in air by uniting with potassium hydroxide solution. The potassium carbonate produced by absorbing CO2 is turned to calcium carbonate by reaction with slaked lime in the next process, and the calcium carbonate is heated by a calcining furnace. Oxygen is used in the calcining furnace.

One unit of ASU is set up in the plant at this time, but Matheson Tri-Gas has not disclosed any detail like supply capacity.