BOKJU Co., Ltd. is a South Korean company specializing in eco-friendly water storage, waterproofing, and water tank solutions. Since its establishment in 2009, the company has focused on developing technologies that support clean, safe, and sustainable water management.

One of BOKJU’s key innovations is the SPEP Panel, which combines the structural strength of stainless steel with the corrosion resistance and hygienic properties of LDPE. The technology provides dual waterproofing, strong chlorine and chemical resistance, easy maintenance, and long-term durability, making it suitable for drinking-water reservoirs, chemical tanks, wastewater tanks, and other industrial water-storage applications.