Complex sentence: In 1992, Steinberg went bankrupt and became a Provigo though it had nothing to do with the previous Provigo (the former Dominion store) that closed a year earlier.
Split into simpler sentences: In 1992, Steinberg went bankrupt and became a Provigo. This Provigo had nothing to do with the previous Provigo (the former Dominion store) that closed a year earlier.