Xian Han He

Ferrotec Corp. engages in the development, production, and sale of ferrofluidic magnetic liquid and ferrofluidic sealing products. It operates through the following segments: Equipment-related, Solar Cell-related, Electronic Device, and Others. The Equipment-related segment handles the production of vacuum seals, quartz products, and ceramic products. It also deals with the processing of silicon wafers. The Solar Cell-related segment manages the production of silicon crystal manufacturing equipment, quartz crucible, and silicon for solar cells. The Electronic Device segment produces thermo-modules and ferrofluids. The Others segment includes saw blades, parts cleaning equipment, machine tools, and surface treatments. The company was founded on September 27, 1980 and is headquartered in Tokyo, Japan.

Ferrotec (USA) Corp. manufactures ferrofluidics, which are used for sealing, sensing, lubrication and heat transfer. It is used by manufacturer of audio speakers & lighting and engineered products. Its sealing devices are used for making semiconductors and in oil and chemical production. The company was founded in 1968 and is headquartered in Nashua, NH.

Hangzhou Dahe Thermo-Magnetics Co., Ltd. engages in thermal solutions. It specializes in the manufacture of ferrofluidic, thermoelectric, and precision machining technologies. Its products include ferrofluidic seals and vacuum feedthroughs, precision parts, thermoelectric modules, fabricated quartzware, and fine ceramics. The company was founded in 1992 and is headquartered in Shanghai, China.

Hangzhou Bioer Technology Co., Ltd. engages in the design, development, manufacture, and sales of instruments, reagents and consumables related to polymerase chain reaction (PCR) detection. Its products include real–time PCR, thermal cycle, nucleic acid extractor, dry and water bath, sample preservation solution, nucleic acid extraction reagent, PCR testing reagent, suction head, rack, PCR tubes, plates and sealing. The company was founded on June 28, 2002 and is headquartered in Hangzhou, China.

Advanced Quartz Material (Hangzhou) Co., Ltd. is a Chinese company that manufactures and supplies silicon crucibles. The private company is based in Hangzhou, China.