On November 18, 2019, Toray Corporation developed the world's first porous carbon fiber with nano-scale continuous pore structure through its own polymer technology and fiber technology, and can use its own technology to ensure the uniform distribution of pores and customization The fixed size of the porous structure, this fiber material is compact and lightweight, has excellent chemical stability and permeability, and can be used to make a support layer for advanced membrane materials to achieve more environmentally friendly natural gas and biogas purification, greenhouse Gas separation and safe hydrogen production.