21/6/2024
Carbon Xtract Corporation
Tokyo Ohka Kogyo Co., Ltd.
Carbon Xtract and Tokyo Ohka Kogyo Conclude Joint Development Agreement for theEarly Practical Implementation and Commercialization of a System for Membrane-based
Direct Air Capture Technology!
Carbon Xtract Corporation (“Carbon Xtract”) and Tokyo Ohka Kogyo Co., Ltd., (“TOK”)
have signed a joint development agreement for the early-stage practical implementation ofa system to enable direct capture of carbon dioxide from the atmosphere (Direct Air
Capture, "DAC") using gas separation membranes.
The specific role of both companies is that TOK will be responsible for developing andmanufacturing membranes with an eye toward future mass production, while Carbon
Xtract will be responsible for evaluating membranes and developing and manufacturing
equipment using such membranes.

In recent years, technology for separating and capturing CO₂ for the purpose of reducing
greenhouse gases has been the focus of growing attention. Carbon Xtract and TOK arecommitted to the rapid development of membrane-based Direct Air Capture, (“m-DAC®” *1)
for mass production by combining their respective technologies and know-how to meet theneeds of the global society.

（Reference）
Overview of Carbon Xtract Corporation
Corporate name
Carbon Xtract Corporation
Representative
Tetsuo Moriyama
EstablishedMay 26, 2023
Websitehttps://c-xtract.com/
Carbon Xtract is a startup established through cooperation among Kyushu University,
Nanomembrane Co., Ltd.*2 and Sojitz Corporation. Carbon Xtract has been promoting the1/2

early-stage practical implementation of DAC technology using nano-level thin gas
separation membranes, which Kyushu University has been researching and working onover the course of several years, as well as of technology for utilizing captured CO₂. mDAC® is an innovative world-first technology that allows the capture and concentration ofCO₂ simply by filtering air through a membrane, and which, when put to practical use, will
make it possible to capture CO₂ directly from the atmosphere in a variety of locations.

Overview of Tokyo Ohka Kogyo Co., Ltd.
Corporate nameTokyo Ohka Kogyo Co., Ltd.
Representative
Noriaki Taneichi
Established
October 25, 1940
Websitehttps://www.tok.co.jp
TOK is one of the leading manufacturers of semiconductor photoresists. It has been
conducting business in the field of fine chemicals with its microprocessing and high purity
processing technologies.. Leveraging its highly flexible development capabilities acquired in
the semiconductor sector, it has refined products and technologies and boldly taken on newdevelopment themes, and it has conducted joint research and development on membranes
with Kyushu University and Nanomembrane Co., Ltd. even prior to the establishment ofCarbon Xtract (May 2023).
(*1) “m-DACⓇ” DAC technology using separation nanomembranes
A technology that allows to capture carbon dioxide (CO2) directly from the atmosphere.
m-DACⓇ, which is being researched and developed by Kyushu University, is a method forrecovering CO2 simply by filtering air through membranes. Its distinctive feature is the useof separation nanomembranes that are extremely permeable to CO2 compared toconventional CO2 separation membranes.
(*2) Nanomembrane Co., Ltd.
A materials venture company established with the purpose of exploring the practicalapplications of giant nanomembranes, the result of research conducted by the RikenInstitute, into practical technology.

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