About HM Tanks — Leading Pressure Vessel Factory in China

About Us

Shanghai Huimay is a leading high-tech manufacturer specializing in drinking water treatment and pressure vessel solutions. Our group consists of five member companies and two factories — based in Linyi, China — with a sales office in Shanghai. Together, we cover the full value chain: R&D, design, manufacturing, and global sales. Quality excellence is our foundation, and value-adding solutions are our commitment. We achieve this by combining our patented injection-molding and spin-welding expertise with a partner-focused perspective: "Your growth is our growth" and "Bigger value for your investment" are our business principles.

Our subsidiary is one of the largest RO and expansion tank manufacturers globally. Our tank series include plastic, steel, and plasteel RO tanks. All tanks are manufactured with our patented structural integrity technology and feature our globally pioneering antibacterial butyl diaphragm, ensuring durable and bacteria-free water storage. Every tank is produced in our fully dust-free workshop. Our product line also includes inline filters and replacement cartridges, designed with unique features that make installation easier and performance more reliable.

All products are independently tested and certified, using 100% authentic raw materials that meet the most respected global standards. Our products are your destination for drinking water system components that are both healthy for you and aligned with your values.