Complex sentence: However, in the second half of the year there was a sudden collapse in the market for voltage regulators, so Nocivelli decided to explore the sector of refrigerators, which was at that time a new, rapidly growing market.
Split into simpler sentences: However, in the second half of the year there was a sudden collapse in the market for voltage regulators. But Nocivelli decided to explore the sector of refrigerators, which was at that time a new rapidly growing market.