Why a catalogue
Why use a spreadsheet at all
The agent's own search needs an account before it returns anything useful, and it searches Chinese marketplaces in Chinese. A browsable catalogue sidesteps both: the listings are already gathered, already in English, and already grouped by what the item is.
The practical difference is at the start. You can see what exists in a category, and roughly what it costs, before you decide whether this whole route is worth an account. That is the question most people actually have first.
The catalogue is not the agent. It shows you listings. Paying, checking and shipping all happen on the agent's side, under the terms set out in the agreement.

Quality control for catalogues
How to judge a spreadsheet site, and tell a live catalogue from a dead one
Catalogues rot quietly. Listings go down, sellers vanish, and the page still looks fine. Four checks take about a minute between them.
- Open three listings at random. Dead links are the fastest signal. One dead out of three is a catalogue nobody is tending.
- Look for a date. Not a copyright year in the footer. A date attached to the listings or to a change log.
- Check whether anything is ever removed. A catalogue that only grows is a catalogue that never gets checked.
- See whether it tells you what it does not cover. A page that is only enthusiastic is selling, not helping.
Hold this site to the same four. The dates here say 2026-10-09, and where the official pages contradict each other we print both readings rather than the tidier one.

