Border regions with Czech Republic; including energy network corridors linking the two countries.

Natural gas transmission system operator.

Likely a network transport/energy infrastructure operator (additional company details less easily verifiable, likely subsidiary or partner in Czech energy sector; included in the list of working group participants)

Pipeline operator

Conversion of existing natural gas transmission pipelines for bidirectional hydrogen transport.

Integrated country-scale hydrogen pipeline and terminal systems for industrial, energy, and transport use.