も[構「かま」]わず => Without considering A N2
Considering, Concerning
[時「とき」] => At the time A N5
Time
を[機「き」]に => Use A as an opportunity N1
Time, Situation
Vた[時「とき」] => After having done something N5
Time
を[契機「けいき」] => As a good opportunity A, (do) B N2
Information, Report