Group 1 Medical Location - supplementary bonding - use of junction boxes

For the supplementary bonding connections connecting the general power sockets served by the general power circuit  is it permissible to have a junction box installed (in a ceiling void) prior to the EBB in a group 1 medical location to reduce resistance value of the circuit?

See image below for typical arrangement:

Parents
  • Note: this is one of a few related questions, but I am keeping each question separate with an aim for the answers, to focus, just, on each specific question. 

Reply
  • Note: this is one of a few related questions, but I am keeping each question separate with an aim for the answers, to focus, just, on each specific question. 

Children
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