Complex sentence: He appeared on many of the No Limit albums in 1997-1998, however, 1998 was his last year with the label, and he left in early 1999 to go on his own.
Split into simpler sentences: He appeared on many of the No Limit albums in 1997-1998. That was his last year with the label, and he left in early 1999 to go on his own.