Pilkington North America has a clear view of the US glass market. The company manufactures and markets glass and glazing products primarily for the automotive and building industries. Benefits of its glass include fire protection, noise control, solar heat control, and thermal insulation. A majority of its sales come from automotive glass sold to the original equipment and replacement markets. More than a quarter of sales are made from building glass geared at homeowners and architects. A small but growing part of its business focuses on specialty glass used in solar energy conversion. Pilkington North America is a subsidiary of UK-based Pilkington plc, which operates as part of Japanese glass giant Nippon Sheet Glass.