Jenkem Technology Co., Ltd., together with its subsidiaries, engages in the research, development, production, and sale of medical and pharmaceutical polyethylene glycol (PEG), and its derivatives in China and internationally. The company offers high molecular weight polyethylene glycol derivatives comprising branched, methoxylated, bifunctionalized, heterofunctionalized disubstituted, multi-arm, multi-arm heterofunctional disubstituted, amino-polyglycolic, N-terminated polyethylene glycol-modified, and thiol-modified polyethylene glycol PEG products; monodisperse PEG products consisting of methoxy monodisperse PEG derivatives, and monodisperse PEG derivatives with the same functional and heterofunctional groups; click chemistry; lipid nanoparticles delivery system accessories; PEG linkers, such as ADC and PROTAC linkers; PEG medical devices, which include multi-arm PEG derivatives; polyethylene glycol standards; block copolymers; PEG standards; long-acting polypeptide fatty acid side chains, including semaglutide, tirzepatide/icodec, and somapacitan intermediates; and Silkrose injectable cross-linked sodium hyaluronate gel, a passive implantable device used to correct nasolabial folds through subcutaneous injection. It also provides technical services, such as development of synthetic methods, quality research and IND application, analytical method development, and polyethylene glycolization technology services. Jenkem Technology Co., Ltd. was incorporated in 2001 and is headquartered in Beijing, China.