Vendor Intelligence Report: Shanghai Huahaige Plastic

Published 14 Jun 2026. 19-page investigative report on who is behind Shanghai Huahaige Plastic: corporate records, ownership, affiliate networks, and the vendor's lab-testing record. The first 3 pages are free to read on this page.

Researched and published by Finnrick Analytics. Reports draw on corporate records, affiliate-network analysis, and Finnrick's own laboratory testing record; vendors can challenge findings through the formal objections process at finnrick.com/vendor-support/objections.

Executive summary

Shanghai Huahaige Plastic is a narrow, product-specific positive on Finnrick testing, wrapped in a much messier corporate story. Across 5 Finnrick lab tests the overall pass rate is 100% (5 pass / 0 fail). Every test is retatrutide, so the signal is useful for that compound but does not validate Huahaige’s broader peptide and bacteriostatic-water catalog.

Retatrutide is the one reasonable buyer-use case in the record: the public-methodology result set is clean, while the report still flags no-label vials, fill-discipline questions, and ratings that change under stricter grading. That combination makes Huahaige more defensible as a retatrutide shortlist candidate than as a general peptide source, especially for buyers who need lot traceability and dose confidence.

The identity work is where the report gets sharper. SGS-verified Chinese registry data anchors the company as a very recent plastics/general-chemicals entity, while directory profiles claim older operating histories and display a peptide-heavy catalog. Address presentation splits between a Shanghai registration and a Ningbo/Zhejiang location; the contact-domain trail points away from both, into a Hebei-registered infrastructure pattern shared with a probable sister Peptide Plastic company.

The supplied PeptAura route also did not resolve cleanly: the vendor URL returned 404, while the marketplace around it showed referral-code promotion with weak or unclear disclosure. That is not proof of Huahaige-run affiliate marketing, but it affects how much weight buyers should place on community-style endorsements. The report also separates vendor-specific evidence from broader customs exposure after CBP’s recent seizure of Chinese-origin peptide shipments overlapping Huahaige’s catalog.

Inside the full report:

  • Finnrick rating overview, spark-grid trajectory, and methodology-divergence charts for the retatrutide-only lab record
  • SGS-verified Global Sources registry exhibit and establishment-claim comparison from directory profiles
  • Registered-address versus contact-location analysis across Shanghai and Ningbo/Zhejiang records
  • WHOIS and contact-email infrastructure analysis for liguan88.com, sysh88.com, and Shanghai Zheng Peptide Plastic
  • PeptAura affiliate scan covering 14 promoter or owner-partner signal accounts/sites and disclosure status
  • CBP import-risk analysis for Chinese-origin peptide parcels overlapping the Huahaige catalog

Risk assessment

  • Retatrutide fill-accuracy and traceability risk — medium: Retatrutide passed Finnrick’s public methodology (5/5; 83.95%), but methodology sensitivity and no-label vial presentation make it weaker for buyers who need tight fill accuracy and batch traceability.
  • Customs/import seizure risk — high: CBP’s Cincinnati action seized 5,000+ unapproved peptide shipments from China containing retatrutide/semaglutide/tirzepatide/cagrilintide; Huahaige sells the same product class.
  • Misleading corporate-history and business-scope risk — medium: SGS-verified registry data shows incorporation on 2025-04-02 and plastics/general-chemicals scope, while profiles claim 2020 and Apr. 2024 establishment.
  • Corporate opacity and shared-infrastructure risk — medium: sales08@liguan88.com, Hebei WHOIS for liguan88.com, and a parallel Shanghai Zheng Peptide Plastic/sysh88.com pattern suggest a coordinated trading network rather than a standalone Shanghai manufacturer.
  • PeptAura affiliate-promotion risk — medium: The supplied PeptAura route has multiple referral-code promoters with no/unclear disclosure; exact Huahaige-name promotions were not found.