Sungil Co,. Ltd (Korea) was founded in Feb 1998 and is committed to GRP water tank fabrication. GRP Water Tank is designed in accordance to the ISO 14000 ideology on environmental management. Its GRP (Glassfiber Reinforcement Plastic) sheets are produced in-house, and its products are made from this component and have been exported to North America, Europe, and Southeast Asia.

The panels are made of the state-of-the-art compound material, GRP (Glass Reinforcement Plastic), which is a combination of unsaturated polyester resin with a filler, catalyst, isomer, etc. made from non-alkaline glass fiber. This material is high-temperature and high-pressure molded (hot-pressed SMC) and is non-harmful to drinking or consumption.