Harbin Jixianglong Biotech is a peptide manufacturer based in China (Harbin). Direct manufacturer. Founded 2011. Holds US DMFs for semaglutide, tirzepatide, retatrutide, atosiban and 9 more API.
Listing reviewed October 2026.
Harbin-based maker of peptide APIs, founded in 2011, including semaglutide, tirzepatide, atosiban, terlipressin and carbetocin. The FDA placed it on Import Alert 66-40 on February 27, 2026, removed it from the GLP-1 green list, and issued a warning letter on May 1, 2026 citing quality-unit failures, missing process and cleaning validation, and relabeling semaglutide API from unapproved suppliers under its own name.
Directory assessment: Harbin Jixianglong Biotech is listed as a manufacturer in the peptide supply chain, serving Asia markets from China (Harbin). As a direct manufacturer, this supplier controls its own production process from synthesis through purification and quality control release testing. This profile lists 3 sources for reference. This supplier has a low confidence score because of the open FDA action recorded on this page — check its current FDA status before any transaction.
DMF numbers from the FDA quarterly DMF list. A filed DMF is not FDA approval; its contents are confidential. Reviewed 2026-10-23.