HOB Biotech Group Corp Ltd (688656.SS) operates as an innovative in vitro diagnostic company focused on the research, development, production and sales of diagnostic reagents and instruments for allergy and autoimmune diseases. The company provides a range of diagnostic tools including line immunoassays under the BioLINE brand offering 18 panels covering 76 food and inhalant allergens; enzyme-linked immunosorbent assays under the BioLISA brand; and advanced chemiluminescent paramagnetic microparticle immunoassays under the BioCLIA brand detecting 76 single allergens and 10 mix allergens, serving laboratories and hospitals in China across 34 provinces and internationally. Founded in 2009 and headquartered in Suzhou, China, HOB Biotech maintains world-class R&D centers in Suzhou and California, US, alongside an ISO 13485-certified manufacturing facility in Suzhou, positioning it as China's market leader in allergy diagnostics and a rising star in autoimmune diagnostics with over 100 product registration certificates and dozens of patents.