Complex sentence: In the 1990s, Hyundai Precision produced the Hyundai Galloper and Santamo cars, but production shifted to the Hyundai Motor Company in 1999.
Split into simpler sentences: In the 1990s, Hyundai Precision was producing the Hyundai Galloper and Hyundai Santamo cars. Production of these cars shifted to the Hyundai Motor Company in 1999.