About this directory
Zuo Shi Ping indexes industrial manufacturers and suppliers — with a focus on mainland China — and presents them in English, organised the way buyers actually search.
Why China-focused
The established industrial directories are strong on North American and European suppliers and thin on Chinese ones, which is where a large share of manufacturing capacity actually sits. Chinese manufacturers are often listed only in Chinese, or scattered across marketplaces built for spot-buying rather than for engineering procurement. This directory is aimed at that gap: factory-level records, in English, with the technical and compliance details a sourcing engineer needs.
Where the data comes from
Company records are compiled from public information: the companies' own websites and published catalogs, trade-show exhibitor lists, industry association registers, and public business directories. We record facts — company name, location, contact details, year founded, size, business type, certifications, export markets and product categories.
Descriptions on this site are written by us from those facts. We do not republish other directories' editorial text, product copy or photography. Where we discovered a company through another directory, we link to that original listing rather than reproducing it.
How listings are organised
Products and suppliers are classified into a taxonomy of sectors, categories and subcategories based on standard industrial classification practice. Suppliers can appear in multiple categories. Regional pages group suppliers by the manufacturing cluster they sit in, because in Chinese industry the cluster is often a better predictor of capability than the company profile.
Accuracy, corrections and removal
Records are compiled automatically and verified where possible against the company's own website. Details change, and some entries will be out of date or wrong. If you are a listed company and want your record corrected, updated or removed, contact us through the contact form and we will action it. A full breakdown of where records come from is on the data sources page.
Inclusion in this directory is not an endorsement, a certification, or a verification of any company's claims. Buyers should carry out their own due diligence — including verifying business licences, certifications and production capability — before placing orders.
For buyers
You can browse by sector, drill into a category, filter by province and company type, or search directly. If you cannot find what you need, send a sourcing request describing the specification and we will match it against suppliers in the relevant category.