Shanghai Sigma Audley
Editorially confirmed24 reports · 4 sources
Documented fraud cases
13 manufacturers and sellers with a documented fraud finding
Suppliers with a documented fraud finding. Each entry shows what is on record.
13 suppliers on the list ·As of Aug 26, 2026
3 reports · 1 source
Nantong Guangyuan Chemical
Editorially confirmed3 reports · 3 sources
Wuhan Wansheng Bio
Editorially confirmed3 reports · 3 sources
2 reports · 1 source
2 reports · 2 sources
SRY Labs
Editorially confirmed2 reports · 2 sources
2 reports · 2 sources
1 report · 1 source
1 report · 1 source
3 reports · 2 sources
2 reports · 2 sources
2 reports · 2 sources
How this list is built. An entry appears as soon as something is documented about fraud - confirmed reports, an authority warning or a judgment. Good experiences elsewhere do not cancel that: a supplier can ship reliably and still be listed here.